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April 2016 - FINAL DRAFT pw://Carollo/Documents/Client/CA/Modesto/9704A00 - WW Collection/Deliverables/App Cover Pages.docx Wastewater Treatment Master Plan APPENDIX C – V&A - CITY OF MODESTO - SEWER FLOW MONITORING AND INFLOW/INFILTRATION STUDY ---PAGE BREAK--- ---PAGE BREAK--- CITY OF MODESTO SEWER FLOW MONITORING & INFLOW/INFILTRATION STUDY Prepared for: City of Modesto 1010 Tenth St., Suite 4600 Modesto, CA 95353 Date: July 2015 Prepared by: V&A Project No. 13-0336 DRAFT ---PAGE BREAK--- V&A Project No. 13-0336 Table of Contents i TABLE OF CONTENTS EXECUTIVE 1 ES Scope and Purpose 1 Site Flow Monitoring and Capacity Results 1 Inflow and Infiltration Analysis Results 3 Recommendations 6 INTRODUCTION 9 1.0 1.1 9 1.2 Scope and Purpose 9 1.3 Flow Monitoring Sites 11 1.4 Flow Monitoring Basins 14 METHODS AND 16 2.0 2.1 Confined Space Entry 16 2.2 Flow Meter Installation 17 2.3 Flow Calculation 20 2.4 Average Dry Weather Flow Determination 21 2.5 Inflow/Infiltration Analysis: Definitions and Identification 22 2.5.1 Definition and Typical 22 2.5.2 Infiltration Components 23 2.5.3 Impact and Cost of Source Detection and Removal 23 2.5.4 Graphical Identification of Inflow and Infiltration 24 2.5.5 Analysis Methods 25 2.6 Flow Attenuation 25 RAINFALL RESULTS 27 3.0 3.1 Rainfall Monitoring Locations 27 3.2 Rainfall Data 28 3.3 Regional Rainfall Event Classification 30 FLOW MONITORING RESULTS 32 4.0 4.1 Baseline Flow Analysis 32 4.2 Peak Measured Flows and Pipeline Capacity Analysis 35 INFLOW AND INFILTRATION RESULTS 39 5.0 5.1 Preface 39 DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Table of Contents ii 5.2 Large Basin Inflow Analysis 40 5.3 Large Basin RDI Analysis 42 5.4 Large Basin Combined I/I Analysis 43 5.5 Large Basin Groundwater Infiltration Analysis 45 5.6 Sub-Basin Inflow and Infiltration Results Summary 47 5.6.1 Sub-Basin RDI Review 49 RECOMMENDATIONS 52 6.0 TABLES Table ES-1. Capacity Analysis Summary 2 Table ES-2. Inflow Summary – Large Basins 4 Table ES-3. Summary of Sub-Basin I/I Results 5 Table 1-1. List of Flow Monitoring Sites 11 Table 1-2. List of Flow Monitoring Basins 14 Table 3-1. Rainfall Total Summary 28 Table 3-2. Rainfall Frequency Return Summary 31 Table 4-1. Average Dry Weather Flow Summary 32 Table 4-2. Flow Monitoring Sites with 33 Table 4-3. Capacity Analysis Summary 35 Table 5-1. Inflow Analysis Summary, Large Basins 40 Table 5-2. Combined I/I Analysis Summary, Large Basins 43 Table 5-3. Summary of Sub-Basin I/I Results 51 FIGURES Figure ES-1. Large Basin Inflow Temperature Map 4 Figure ES-2. Sub-basin Inflow Temperature Map 6 Figure ES-3. Peak Wet Weather Flow Schematic 8 Figure 1-1. Locations of Flow/Rainfall Monitoring Sites 13 Figure 1-2. Flow Monitoring Sub-Basins 15 Figure 2-1. Typical Installation for Flow Meter with Submerged Sensor 17 Figure 2-2. Sensor Offset due to Sediment 18 Figure 2-3. The Settling of Sediment in Pipelines 18 Figure 2-4. Typical Flo-Dar Flow Meter Installation 19 Figure 2-5. Sample ADWF Diurnal Flow Patterns 21 Figure 2-6. Typical Sources of Infiltration and Inflow 22 DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Table of Contents iii Figure 2-7. Sample Infiltration and Inflow Isolation Graph 24 Figure 2-8. Attenuation Illustration 26 Figure 3-1. Rain Gauge Locations 27 Figure 3-2. Rainfall Distribution over Flow Monitoring Period (Avg. of Four Rain Gauges) 29 Figure 3-3. Rainfall Accumulation Plot 29 Figure 3-4. NOAA Northern California Rainfall Frequency Map, Isopluvials of 10-year 24-hour precipitation in inches. 30 Figure 3-5. Rainfall Event Classification (1 to 24 hours) at RG North 31 Figure 3-6. Rainfall Event Classification (1 to 7 days) at RG West 31 Figure 4-1. Average Dry Weather Flow Schematic 34 Figure 4-2. Capacity Summary: d/D Ratios 37 Figure 4-3. Capacity Summary: Peaking Factors 37 Figure 4-4. Peak Wet Weather Flow Schematic 38 Figure 5-1. Map of Large Basins 39 Figure 5-2. I/I Isolation Curve, Basin 4 (Inflow Measurement) 40 Figure 5-3. Large Basin Inflow Temperature Map 41 Figure 5-4. I/I Isolation Curve, Basin 4 (RDI Measurement) 42 Figure 5-5. I/I Isolation Curve, Basin 4 (Combined I/I Measurement) 43 Figure 5-6. Large Basin Combined I/I Temperature Map 44 Figure 5-7. Groundwater Infiltration Sample Figure 45 Figure 5-8. Minimum Flow Ratios vs. ADWF 46 Figure 5-9. Sub-basin Inflow Temperature 47 Figure 5-10. Sub-basin Combined I/I Temperature Map 48 Figure 5-11. Site 2-6 Flows Hydrographs (December 11 – 22, 2014) 49 Figure 5-12. I/I Isolation Curve, Site 2-5, Event 3 49 Figure 5-13. I/I Isolation Curve, Site 6-3, Event 1 50 Figure 5-14. Sub-basin RDI Temperature Map 50 APPENDICES Appendix A. Flow Monitoring Sites (Wet): Data, Graphs, Information DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Table of Contents iv ABBREVIATIONS, ACRONYMS, UNITS OF MEASURE, AND TERMS AND DEFINITIONS USED IN THIS REPORT Table i. Abbreviations Abbreviation Term ADWF average dry weather flow C. of City of… CO carbon monoxide COOP Cooperative Observer Program d/D depth/diameter ratio gpd gallons per day FM flow monitor GWI groundwater infiltration H2S hydrogen sulfide IDM inch diameter-miles I/I inflow and infiltration LEL lower explosive limit LS lift station mgd million gallons per day NOAA National Oceanic and Atmospheric Administration NWS National Weather Service OSHA U.S. Department of Labor, Occupational Safety and Health Administration PPE personal protective equipment Q flow rate RDI rainfall-dependent infiltration QA/QC quality assurance/quality control RRI rainfall-responsive infiltration RG rain gauge SSO sanitary sewer overflow WEF Water Environment Federation WRCC Western Regional Climate Center DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Table of Contents v Table ii. Terms and Definitions Term Definition Average dry weather flow (ADWF) Average flow rate or pattern from days without noticeable inflow or infiltration response. ADWF usage patterns for weekdays and weekends differ and must be computed separately. ADWF can be expressed as a numeric average or as a curve showing the variation in flow over a day. ADWF includes the influence of normal groundwater infiltration (not related to a rain event). Basin Sanitary sewer collection system upstream of a given location (often a flow meter), including all pipelines, inlets, and appurtenances. Also refers to the ground surface area near and enclosed by pipelines. A basin may refer to the entire collection system upstream from a flow meter or exclude separately monitored basins upstream. Depth/diameter (d/D) ratio Depth of water in a pipe as a fraction of the pipe’s diameter. A measure of fullness of the pipe used in capacity analysis. Infiltration and inflow Infiltration and inflow (I/I) rates are calculated by subtracting the ADWF flow curve from the instantaneous flow measurements taken during and after a storm event. Flow in excess of the baseline consists of inflow, rainfall-responsive infiltration, and rainfall-dependent infiltration. Total I/I is the total sum in gallons of additional flow attributable to a storm event. Infiltration, groundwater Groundwater infiltration (GWI) is groundwater that enters the collection system through pipe defects. GWI depends on the depth of the groundwater table above the pipelines as well as the percentage of the system that is submerged. The variation of groundwater levels and subsequent groundwater infiltration rates is seasonal by nature. On a day-to-day basis, groundwater infiltration rates are relatively steady and will not fluctuate greatly. Infiltration, rainfall-dependent Rainfall-dependent infiltration (RDI) is similar to groundwater infiltration but occurs as a result of storm water. The storm water percolates into the soil, submerges more of the pipe system, and enters through pipe defects. RDI is the slowest component of storm-related infiltration and inflow, beginning gradually and often lasting 24 hours or longer. The response time depends on the soil permeability and saturation levels. Infiltration, rainfall-responsive Rainfall-responsive infiltration (RRI) is storm water that enters the collection system through pipe defects, but normally in sewers constructed close to the ground surface such as private laterals. RRI is independent of the groundwater table and reaches defective sewers by way of the pipe trench in which the sewer is constructed; particularly if the pipe is placed in impermeable soil and bedded and backfilled with a granular material. In this case, the pipe trench serves as a conduit similar to a French drain, conveying storm drainage to defective joints and other openings in the system. Inflow Inflow is defined as water discharged into the sewer system, including private sewer laterals, from direct connections such as downspouts, yard and area drains, holes in manhole covers, cross-connections from storm drains, or catch basins. Inflow creates a peak flow problem in the sewer system and often dictates the required capacity of pipes and transport facilities to carry these peak instantaneous flows. Overflows are often attributable to high inflow rates. Normalization To run an “apples-to-apples” comparison amongst different basins, calculated metrics must be normalized. Individual basins will have different runoff areas, pipe and sanitary flows. There are three common methods of normalization. Depending on the information available, one or all methods can be applied to a given project: DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Table of Contents vi Term Definition • Pipe Length: The metric is divided by the length of pipe in the upstream basin expressed in units of inch-diameter-mile (IDM). • Basin Area: The metric is divided by the estimated drainage area of the basin in acres. • ADWF: The metric is divided by the average dry weather sanitary flow (ADWF). Normalization, inflow The peak I/I flow rate is used to quantify inflow. Although the instantaneous flow monitoring data will typically show an inflow peak, the inflow response is measured from the I/I flow rate (in excess of baseline flow). This removes the effect of sanitary flow variations and measures only the I/I response: • Pipe Length: The peak I/I flow rate is divided by the length of pipe (IDM) in the upstream basin. The result is expressed in gallons per day (gpd) per IDM (gpd/IDM). • Basin Area: The peak I/I flow rate is divided by the geographic area of the upstream basin. The result is expressed in gpd per acre. • ADWF: The peak I/I flow rate is divided by the average dry weather flow (ADWF). This is a ratio and is expressed without units. Normalization, GWI The estimated GWI rates are compared to acceptable GWI rates, as defined by the Water Environment Federation, and are used to identify basins with high GWI: • Pipe Length: The GWI flow rate is divided by the length of pipe (IDM) in the upstream basin. The result is expressed in gallons per day (gpd) per IDM (gpd/IDM). • Basin Area: The GWI flow rate is divided by the geographic area of the upstream basin. The result is expressed in gpd per acre. • ADWF: The GWI flow rate is divided by the average dry weather flow (ADWF). This is a ratio and is expressed without units. Normalization, RDI The estimated RDI rates at a period 24 hours or more after the conclusion of a storm event are used to identify basins with high RDI: • Pipe Length: The RDI flow rate is divided by the length of pipe (IDM) in the upstream basin. The result is expressed in gallons per day (gpd) per IDM (gpd/IDM). • Basin Area: The RDI flow rate is divided by the geographic area of the upstream basin. The result is expressed in gpd per acre. • ADWF: The RDI flow rate is divided by the average dry weather flow (ADWF). This is a ratio and is expressed without units. Normalization, total I/I The estimated totalized I/I in gallons attributable to a particular storm event is used to identify basins with high total I/I. Because this is a totalized value rather than a rate and can be attributable solely to an individual storm event, the volume of the storm event is also taken into consideration. This allows for a comparison not only between basins but also between storm events: • Pipe Length: Total gallons of I/I is divided by the length of pipe (IDM) in the upstream basin and the rainfall total (inches) of the storm event. The result is expressed in gallons per IDM per inch-rain. DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Table of Contents vii Term Definition • Basin Area (R-Value): Total gallons of I/I is divided by total gallons of rainfall water that fell within the acreage of the basin area. This is a ratio and is expressed as a percentage. R-Value is described as “the percentage of rainfall that enters the collection system.” Systems with R-Values less than 5%1 are often considered to be performing well. • ADWF: Total gallons of I/I is divided by the ADWF and the rainfall total of the storm event. The result is expressed in million gallons per MGD of ADWF per inch of rain. Peaking factor Ratio of peak measured flow to average dry weather flow. This ratio expresses the degree of fluctuation in flow rate over the monitoring period and is used in capacity analysis. Surcharge When the flow level is higher than the crown of the pipe, then the pipeline is said to be in a surcharged condition. The pipeline is surcharged when the d/D ratio is greater than 1.0. Weekend/weekday ratio The ratio of weekend ADWFs to weekday ADWFs. In residential areas, this ratio is typically higher than 1.0. In business districts, depending on the type of service, this ratio can be significantly less than 1.0. 1 Keefe, P.N. “Test Basins for I/I Reduction and SSO Elimination.” 1998 WEF Wet Weather Specialty Conference, Cleveland. DRAFT ---PAGE BREAK--- V&A Project No. 13-0336 Executive Summary 1 EXECUTIVE SUMMARY ES Scope and Purpose V&A Consulting Engineers, Inc. (V&A) has completed sanitary sewer flow monitoring and rainfall monitoring within the City of Modesto (City). V&A conducted the flow monitoring in two phases: • Phase 1 – Dry Weather Flow Monitoring: The first phase was conducted in the summer months from April 30, 2014 to May 27, 2014 at 41 flow monitoring locations. This phase established average dry weather flows at the monitoring sites. • Phase 2 – Wet Weather Flow Monitoring: The second phase was conducted during the wet weather season from December 11, 2014 to March 1, 2015 at 43 flow monitoring locations. During the second phase, rain-dependent infiltration and inflow (RDI/I) analysis was performed to quantify the volumes of inflow and infiltration contribution within City basins and sub-basins. The purpose of the flow monitoring program was primarily to support the development of an update to the WWMP and the hydraulic model. Accurate and reliable flow monitoring are critical to measuring pipe flows under various conditions from which the City’s wastewater hydraulic model will be updated. Land use loadings will be evaluated and an updated WWMP will identify and recommend future wastewater system capital improvement projects. All dry and wet weather data has been provided to Carollo to support the WWMP update and to update the hydraulic model. This report focuses on presentation of the wet weather capacity analysis and I/I analysis results. Site Flow Monitoring and Capacity Results Table ES-1 summarizes the peak recorded flows, levels, d/D ratios, and peaking factors per site during the flow monitoring period. Sites that surcharged and sites with peaking factors greater than 6.0 have been shaded in RED. Capacity analysis data is presented on a site-by-site basis and represents the hydraulic conditions only at the point site locations. Hydraulic conditions in other areas of the collection system will differ. Figure ES-3 at the end of the Executive Summary shows a scaled flow schematic diagram of the peak recorded flows and flow depths. Note: Caution should be taken when comparing peak flows; peak flow events site to site may not have occurred at the same time, are subject to the effects of attenuation, and/or may have occurred during different rainfall events. DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Executive Summary 2 Table ES-1. Capacity Analysis Summary Monitoring Site ADWF (mgd) Peak Measured Flow (mgd) Peaking Factor Diameter (inches) Peak Level (inches) d/D Ratio Surcharge Level (feet) Site 1-1 5.91 15.16 2.6 58 50.3 0.87 - Site 1-2 4.81 11.51 2.4 48 25.4 0.53 - Site 1-3 1.39 3.49 2.5 39 15.0 0.39 - Site 1-4 1.49 5.23 3.5 28 19.6 0.70 - Site 1-5 5.43 14.57 2.7 54 27.6 0.51 - Site 2-1 3.56 6.54 1.8 42.75 7.7 0.18 - Site 2-2 2.77 10.06 3.6 31.5 58.9 1.87 2.3 Site 2-3 0.57 1.60 2.8 18.5 55.4 2.99 3.1 Site 2-4 1.79 7.52 4.2 30 71.4 2.38 3.5 Site 2-5 0.69 2.29 3.3 21 78.7 3.75 4.8 Site 2-6 0.13 0.72 5.5 15 12.8 0.85 - Site 3-1 1.26 3.51 2.8 18 16.2 0.90 - Site 4-1 0.036 0.30 8.3 18 5.6 0.31 - Site 4-2 0.82 5.26 6.4 33 19.7 0.60 - Site 4-3 0.33 2.13 6.5 15 19.2 1.28 0.4 Site 4-4 0.002 0.24 105.8 10 6.8 0.68 - Site 5-1 7.62 26.62 3.5 41.5 121.1 2.92 6.6 Site 5-2 2.10 5.40 2.6 28 18.2 0.65 - Site 5-3 1.13 2.73 2.4 25.5 15.1 0.59 - Site 5-4 0.42 1.19 2.8 15 9.4 0.63 - Site 5-5 0.59 1.48 2.5 21 12.1 0.58 - Site 6-1 7.60 25.98 3.4 47.5 97.7 2.06 4.2 Site 6-3 1.44 3.91 2.7 48 12.1 0.25 - Site 6-4 3.26 9.00 2.8 45 20.8 0.46 - Site 6-5 2.98 8.90 3.0 36 16.4 0.46 - Site 6-6 1.44 4.44 3.1 33 15.2 0.46 - Site 6-7 1.26 2.93 2.3 33 8.6 0.26 - Site 6-8 0.61 1.47 2.4 30 9.1 0.30 - Site 6-9 0.90 2.00 2.2 30 11.9 0.40 - Site 6-10 0.29 0.71 2.5 10 22.5 2.25 1.0 Site 7-1 5.31 19.71 3.7 60 40.3 0.67 - Site 7-2 0.73 5.01 6.9 47.75 17.1 0.36 - Site 7-B 0.21 5.48 26.6 30 12.5 0.42 - Site 8-1 0.80 3.00 3.8 24 42.2 1.76 1.5 Site 9-1 0.19 0.99 5.1 30 8.2 0.27 - Site 10-1 0.33 1.09 3.3 24 2.8 0.12 - Site A 0.53 1.76 3.3 18 12.4 0.69 - Site B 0.26 1.55 6.0 16 28.8 1.80 1.1 DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Executive Summary 3 Monitoring Site ADWF (mgd) Peak Measured Flow (mgd) Peaking Factor Diameter (inches) Peak Level (inches) d/D Ratio Surcharge Level (feet) Site C 0.05 0.20 4.3 15 33.3 2.22 1.5 Site F 0.88 2.82 3.2 18 34.1 1.89 1.3 Site G 0.68 6.73 9.9 48 19.6 0.41 - Site H 0.41 1.95 4.7 24 12.4 0.52 - The following capacity analysis results are noted: • Peaking Factor: Eight flow meters had peaking factors above 6.0. ○ Site 4-4 is an overflow line that has minimal ADWF levels, resulting in a peaking factor that is skewed high due to its very low ADWF. • d/D Ratio: 15 flow monitoring sites had d/D ratios higher than 0.75 d/D. 12 flow monitoring sites surcharged during this study. Inflow and Infiltration Analysis Results V&A first examined the larger City basins to get an overall intelligence for how the collection system generally responds to rainfall. Results from the large basin analyses helped to guide the analyses performed for sub-basins. Specifically in regards to the components of inflow and infiltration, the following items pertaining to the City of Modesto are noted: • Generally for the City of Modesto, there is minimal sustained infiltration within the collection system, even after significant rainfall events. • Nearly all of the RDI/I within the City is coming from inflow. • Based on the data and information known to date, groundwater infiltration rates appear to be within acceptable ranges. Table ES-2 summarizes the inflow results for the large basins and Table ES-3 summarizes the I/I rankings for the 34 sub-basins. Results of note have been shaded in RED. The inflow rankings are shown such that 1 represents the highest inflow contribution. Figure ES-1 illustrates a temperature map of the inflow results for large basins and Figure ES-2 illustrates a temperature map of the inflow results for sub-basins. Note: the CSL Basin is shown as a circular shape near the lower right corner of the temperature maps for illustrative purposes. The following inflow analysis results are noted: • Basin 4, Basin 7 and the CSL Basin ranked highest for inflow. • Sub-Basin 1-5, Sub-Basin 6-6 and Sub-Basin H also had high rates of inflow. DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Executive Summary 4 Table ES-2. Inflow Summary – Large Basins Basin ADWF (mgd) Peak I/I Rate (mgd) Peak I/I per ADWF Peak I/I per IDM (gpd/IDM) Peak I/I per ACRE (gpd/AC) Inflow Ranking Basin 1 5.91 8.25 1.40 4,870 1,310 9 Basin 2 2.77 7.35 2.66 8,140 2,020 6 Basin 3 1.26 2.05 1.62 5,320 1,200 7 Basin 4 1.18 6.35 5.37 17,080 7,540 3 Basin 5 2.10 2.85 1.36 5,030 1,180 10 Basin 6 4.70 6.70 1.43 5,220 1,290 8 Basin 7 0.62 10.00 16.15 30,740 18,850 1 Basin 8 0.80 2.12 2.66 8,920 2,160 5 Basin 9 0.19 0.70 3.61 10,340 1,510 4 Basin 10 0.33 0.61 1.87 3,770 860 10 Basin CSL 0.73 4.37 5.98 n/a n/a 2 Figure ES-1. Large Basin Inflow Temperature Map DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Executive Summary 5 Table ES-3. Summary of Sub-Basin I/I Results Basin Inflow Ranking Indication of RDI? Combined RDI/I Ranking Basin 1-2 34 No 27 Basin 1-3 33 No 31 Basin 1-4 19 No 21 Basin 1-5 6 No 13 Basin 2-2 17 No 16 Basin 2-3 19 No 30 Basin 2-4 21 No 18 Basin 2-5 15 Slight 11 Basin 2-6 13 Strong 5 Basin 3-1 31 No 33 Basin 4 4 No 4 Basin 5-2 24 No 31 Basin 5-3 24 No 20 Basin 5-4 8 No 7 Basin 5-5 17 No 22 Basin 6-3 9 Slight 5 Basin 6-4 28 No 24 Basin 6-5 14 No 17 Basin 6-6 5 No 8 Basin 6-7 29 No 25 Basin 6-8 32 No 28 Basin 6-9 29 No 28 Basin 6-10 26 No 22 Basin 7-1 6 No 2 Basin 7-B 1 No 1 Basin 8-1 16 No 11 Basin 9-1 11 No 13 Basin 10-1 22 No 26 Basin A 10 No 15 Basin B 12 No 10 Basin C 27 No 34 Basin F 23 No 18 Basin H 3 No 9 Basin CSL 2 No 3 DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Executive Summary 6 Figure ES-2. Sub-basin Inflow Temperature Map Recommendations Baseline sanitary flows have been established and have been delivered to Carollo for the development of an update to the WWMP and to update the Wastewater Collection System Hydraulic Model. It is emphasized that, while V&A does rank and categorize the various basins and sub-basins in terms of inflow and infiltration contribution into the City’s collection system, it is not V&A’s intent to suggest the next course of action to be taken in regards to any CIP decisions regarding the collection system capacity or RDI/I mitigation. The master planning consultant will consider several other factors during the WWMP process to identify and recommend future wastewater system capital improvement projects. These data and the following recommendations should be considered in conjunction with other relevant data and information (for example, future land use, design buildout, hydraulic upgrades, etc.) and used per the discretion of the City Engineer. DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Executive Summary 7 With this in mind, V&A advises that future RDI/I reduction plans consider the following: 1. Determine RDI/I Reduction Program: The District could examine its RDI/I reduction needs to determine its needs and goals for a future RDI/I reduction program. a. If peak flows, sanitary sewer overflows, and pipeline capacity issues are of greater concern, then priority can be given to investigate and reduce sources of inflow within the basins with the higher inflow ratios. b. If infiltration and general pipeline deterioration are of greater concern, then the program can be weighted to investigate and reduce sources of infiltration within the basins with the higher RDI ratios. c. Generally for the City, there is minimal sustained infiltration within the collection system. V&A recommends any City RDI/I reduction program be prioritized to reduce sources of inflow. d. The basins with the highest rates of inflow were Basin 4, Basin 7 and the CSL Basin. Sub- Basin 1-5, Basin 6-6 and Basin H also had high rates of inflow. 2. RDI/I Investigation Methods: Potential RDI/I investigation methods include the following: a. Smoke testing: the objective with this step is to ascertain whether defects from laterals originate via direct connections or through laterals with breaks, offset joints and/or cracks. The District could perform smoke testing on segments with known sources of RDI/I from laterals to find the 'low hanging fruit'; i.e., the direct connections from area drains, roof leaders or other similar connections. b. Sub-basin flow monitoring: Larger basins with high RDI/I can be reduced into smaller sub basins by conducting a more focused flow monitoring and RDI/I study specific to focused basins. c. Nighttime reconnaissance work to investigate and determine direct point sources of inflow and determine the areas and pipe reaches responsible for high levels of infiltration contribution. d. Focused CCTV RDI/I Investigation: CCTV RDI/I investigation can determine exact locations of infiltration occurring within the pipe mains and at the lateral-to-pipe main joint. The CCTV RDI/I investigation will document which laterals have significant volumes of infiltration contributing to the collection system, and may document whether the RDI/I is occurring in the upper or lower portion of the pipe lateral. A great benefit from this work is that the percentage of infiltration coming from laterals versus pipe mains can be effectively quantified. 3. RDI/I Reduction Cost Effective Analysis: The District should conduct a study to determine which is more cost-effective: locating the sources of RDI/I and systematically rehabilitating or replacing the faulty pipelines; or continued treatment of the additional rainfall dependent RDI/I flow. DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Executive Summary 8 Figure ES-3. Peak Wet Weather Flow Schematic DRAFT ---PAGE BREAK--- V&A Project No. 13-0336 Introduction 9 INTRODUCTION 1.0 1.1 Background The City of Modesto (City) owns and operates its own wastewater collection system and associated infrastructure. The collection system serves property within the City limits and some unincorporated areas. The City provides wastewater collection and treatment services to approximately 63,000 residential, commercial and industrial customers conveyed through about 600 miles of pipelines, ranging from 6 to 66 inches in diameter. The City’s previous Wastewater Master Plan (WWMP) was completed in 2007 and included a Capital Improvement Program (CIP) to assist the City in planning and constructing the collection system through buildout of the sphere of influence. The CIP included correction of hydraulic capacity deficiencies, prioritized new services and proposed rehabilitation and reliability improvements, especially for sewers that crossed highways and waterways. In 2015, the City retained Carollo Engineers (Carollo) for the development of an update to the WWMP and also to update the Wastewater Collection System Hydraulic Model. The motivation for this flow monitoring project was to provide accurate and reliable flow monitoring data in support of the WWMP update. 1.2 Scope and Purpose V&A Consulting Engineers, Inc. (V&A) was retained by the City to perform dry weather and wet weather flow monitoring and to conduct inflow and infiltration (I/I) analysis. The purpose of the flow monitoring program was primarily to support the development of an update to the WWMP and the hydraulic model. Accurate and reliable flow monitoring are critical to measuring pipe flows under various conditions from which the City’s wastewater hydraulic model will be updated. Land use loadings will be evaluated and an updated WWMP will identify and recommend future wastewater system capital improvement projects. V&A has completed sanitary sewer flow monitoring and rainfall monitoring within the City. V&A conducted the flow monitoring in two phases. The first phase was conducted in the summer months DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Introduction 10 and established average dry weather flows at 41 flow monitoring sites. The second phase of monitoring captured wet weather flows. I/I analysis was performed to quantify the volumes of inflow and infiltration contribution within the basins and sub-basins. • Phase 1 – Dry Weather Flow Monitoring ○ 41 flow meters ○ 3 weeks of monitoring between 4/30/2014 to 5/27/2014 • Phase 2 – Wet Weather Flow and Rainfall Monitoring ○ 43 total flow meters ■ 41 flow meters were installed for nearly 12 weeks from 12/11/2014 to 3/1/2015. 39 of these were at the same locations as during the dry weather study. Two sites were relocated, at the request of Carollo and the City, to new locations. ■ A mid-study I/I analysis was performed and seven of the 41 wet weather sites were removed from locations that did not require additional data collection. This freed up budget to allow for the addition of new sites for the end of the monitoring period. ■ Two additional locations (Sites G and were installed from 2/4/2015 to 3/1/2015 to capture additional sub-basin information during a late rainfall event. All dry and wet weather data has been provided to Carollo to support the WWMP update and to update the hydraulic model. This report will focus on presentation of the wet weather results and the I/I analysis results. Intent: Though V&A does rank and categorize the various basins and sub-basins in terms of inflow and infiltration contribution into the City’s collection system, it is not V&A’s intent to suggest the next course of action to be taken in regards to any CIP decisions regarding the collection system capacity or RDI/I mitigation. The master planning consultant will consider several other factors during the process of the WWMP update and for identification and recommendation of future wastewater system capital improvement projects. These data should be used per the discretion of the City Engineer. DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Introduction 11 1.3 Flow Monitoring Sites The flow monitoring and rain gauge locations are listed in Table 1-1 and illustrated in Figure 1-1. Table 1-1. List of Flow Monitoring Sites Monitoring Site Manhole ID Measured Pipe Size (inches) Location Site 1-1 064091400 58 Soccer field, south of John Street and Thomas Street Site 1-2 133081104 48 Conant Avenue and Sisk Road Site 1-3 123081308 39 North of Hahn Drive and English Oaks Drive in southbound lane of Hahn Drive, across from apartments Site 1-4 083091510 28 Woodrow Avenue and Mark Allen Drive, at stop sign on Mark Allen Drive Site 1-5 9004 54 Poust Road and Naas Court in southbound lane of Poust Road near center of roadway Site 2-1 064091501 42.75 North of Hancock Street and Donald Street in southbound lane of Hancock Street Site 2-2 303091013 31.5 N. Emerald Avenue and Elm Avenue in center of intersection Site 2-3 193091503 18.5 North of Woodland Avenue/Coldwell Avenue and N. 9th Street in northbound lane of N. 9th Street Site 2-4 193091510 30 North of Kearney Avenue and Coldwell Avenue in northbound lane of Kearney Avenue Site 2-5 203090101 21 Tully Road and W. Granger Avenue Site 2-6 183091012 15 Carver Road and Bay Meadows Drive in southbound lane of Carver Road Site 3-1 054091301 18 Sutter Avenue, south of Robertson Road Site 4-1 323091202 18 Calaveras Ave., just north of Tuolomne Blvd. Site 4-2 323090810 33 Just north of N. 7th Street and C Street in northbound lane, near centerline of roadway Site 4-3 333090505 15 Just north of 9th Street and B Street in center of 9th Street Site 4-4 323090817 10 Beard Street and D Street Site 5-1 323091200KJ 41.5 Near pathway on river floodplain off bridge at S. Morton Boulevard and 9th Street Site 5-2 333090403 28 S. Santa Rosa Avenue, near rail road crossing between Yosemite Boulevard and Mono Drive Site 5-3 273090122 25.5 In median of Scenic Drive, between Sunnyside Avenue and Brighton Avenue Site 5-4 273090108 15 Coffee Road and E. Morris Avenue in southbound lane of Coffee Road Site 5-5 223090302 21 Rose Avenue and Rockford Avenue, in center of roadway Site 6-1 333090619 47.5 Off right corner of eastbound lane of S. Morton Boulevard at entrance to Beard Brook Park DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Introduction 12 Monitoring Site Manhole ID Measured Pipe Size (inches) Location Site 6-3 353090803 48 Off shoulder at 90°corner of Nathan Avenue and El Roya Avenue Site 6-4 353090402 45 Beard Avenue, south of Rodney Avenue at canal Site 6-5 253091304 36 Lincoln Avenue, just south of Gibson Way Site 6-6 263090302 33 South end of Scenic Bend, just south of Scenic Drive around turn to east-west road alignment Site 6-7 233091611 33 North end of Scenic Bend, just south of Scenic Drive around turn to east-west road alignment Site 6-8 243090301 30 Wild Palms Drive between Pepper Tree Lane and Fransen Lane Site 6-9 233090227 30 Eastbound lane of St. Pauls Way, west of Sturm Drive and St. Pauls Court Site 6-10 363090303 10 S. McClure Road, south of Yosemite Boulevard Site 7-1 333090802 60 Oregon Drive, west of S. Santa Cruz Avenue Site 7-2 343090600AD 47.75 Tioga Drive and Empire Avenue in westbound stop lane of Tioga Drive Site 7-B 343090603 30 Oregon Drive and Empire Avenue in middle of intersection Site 8-1 044090104 24 Blankenburg Avenue, just west of S. 7th Street on eastbound edge of road Site 9-1 054091603 30 Cascade Avenue, 1/2 block north of W. Hatch Road Site 10-1 084090104 24 North of 90º turn on Crater Avenue, north of W. Hatch Road Site A 123080904 18 Center of eastbound lane of Veneman Avenue between Beachler Drive and Hahn Drive Site B 293091310 16 N. Jefferson Street and Linden Street Site C n/a 15 Off Shoulder of Zeff Road at Crows Landing Road Site E [PHONE REDACTED] 21 Crow’s Landing Rd., south of Algen Ave. Site F 313091610 18 Sutter Avenue, south of Paradise Road Site G 83091308 48 Dirt road in empty field, south of Tuolumne Boulevard and S. 7th Street Site H 193090812 24 W. Roseburg Avenue, west of Del Rey Avenue DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Introduction 13 Figure 1-1. Locations of Flow/Rainfall Monitoring Sites DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Introduction 14 1.4 Flow Monitoring Basins Flow monitoring basins are localized areas of a sanitary sewer collection system upstream of a given location (often a flow meter), including all pipelines, inlets, and appurtenances. The basin refers to the ground surface area near and enclosed by pipelines. A basin may refer to the entire collection system upstream from a flow meter or may exclude separately monitored basins upstream. I/I analysis in this report will be conducted on a basin-by-basin basis. Table 1-2 lists the basins and sub-basins that were isolated2 and utilized for I/I analysis and Figure 1-2illustrates the basins utilized for I/I analysis. Table 1-2. List of Flow Monitoring Basins Sub-Basin Area (acres) Pipe Length (IDM) Basin Flow Calculation Basin 1-2 1,855 458 =Q1-2(site) – (Q1-3(Site) + Q1-4(Site) + Q2-6(Site)) Basin 1-3 1,162 323 =Q1-3(site) – QA(Site) Basin 1-4 1,808 394 =Q1-4(site) Basin 1-5 671 145 =Q1-5(site) – Q1-2(Site) Basin 2-2 557 154 =Q2-2(site) – (Q2-3(Site) + Q2-4(Site)) Basin 2-3 373 81 =Q2-3(site) – Q2-6(Site) Basin 2-4 1,250 231 =Q2-4(site) – (Q2-5(Site) + QH(Site)) Basin 2-5 1,124 250 =Q2-5(site) Basin 2-6 341 78 =Q2-6(site) Basin 3-1 927 85 =Q3-1(site) – QF(Site) Basin 4 843 372 =Q4-1(site) + Q4-2(Site) + Q4-3(Site) Basin 5-2 1,031 271 =Q5-2(site) – (Q5-4(Site) + Q5-3(Site)) Basin 5-3 568 132 =Q5-3(site) – Q5-5(Site) Basin 5-4 345 64 =Q5-4(site) Basin 5-5 475 101 =Q5-5(site) Basin 6-3 775 13 =Q6-3(site) – Q6-10(Site) Basin 6-4 520 165 =Q6-4(site) – Q6-5(Site) Basin 6-5 253 182 =Q6-5(site) – (Q6-6(Site) + Q6-7(Site)) Basin 6-6 509 116 =Q6-6(site) – Q6-8(Site) Basin 6-7 837 147 =Q6-7(site) – Q6-9(Site) Basin 6-8 821 218 =Q6-8(site) Basin 6-9 959 227 =Q6-9(site) 2 There may be locations with cross-connections between trunk sewers or overflow bypass sewers to help equalize basins and prevent sanitary sewer overflows during peak rain events. However, unless the inter-basin connections are plugged, the behavior of flows may not be known with certainty. The basin isolation equations shown are per the best of V&A’s knowledge. DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Introduction 15 Sub-Basin Area (acres) Pipe Length (IDM) Basin Flow Calculation Basin 6-10 508 213 =Q6-10(site) Basin 7-1 391 212 =Q7-1(site) – (Q6-3(Site) + Q6-4(Site) + Q7-B(Site)) Basin 7-B 139 113 =Q7-B(site) Basin 8-1 545 90 =Q8-1(site) Basin 9-1 461 67 =Q9-1(site) Basin 10-1 707 161 =Q10-1(site) Basin A 579 96 =QA(site) Basin B 774 193 =QB(site) Basin C 138 39 =QC(site) Basin F 515 107 =QF(site) – QB(Site) Basin H 463 109 =QH(site) Basin CSL n/a n/a =Q7-2(Site) n/a – not available Figure 1-2. Flow Monitoring Sub-Basins DRAFT ---PAGE BREAK--- V&A Project No. 13-0336 Methods and Procedures 16 METHODS AND PROCEDURES 2.0 2.1 Confined Space Entry A confined space entry (Photo 2-1) is defined as any space large enough and so configured that a person can bodily enter and perform assigned work, has limited or restricted means for entry or exit, and is not designed for continuous employee occupancy. In general, the atmosphere must be constantly monitored for sufficient levels of oxygen (19.5% to 23.5%), and the absence of hydrogen sulfide (H2S) gas, carbon monoxide (CO) gas, and lower explosive limit (LEL) levels. A typical confined space entry crew has members with U.S. Department of Labor, Occupational Safety & Health Administration-defined (OSHA-defined) responsibilities of "entrant,” "attendant,” and “supervisor.” The entrant is the individual performing the work. He or she is equipped with the appropriate level of personal protective equipment (PPE) needed to perform the job safely, including a personal four-gas monitor (Photo 2-2). If it is not possible to maintain line-of-sight with the entrant, then more entrants are required until line-of-sight can be maintained. The attendant is responsible for maintaining contact with the entrants to monitor the atmosphere using another four-gas monitor and maintaining records of all entrants. The supervisor is responsible for developing the safe work plan prior to entering. Photo 2-1. Confined Space Entry Photo 2-2. Typical Personal Four-Gas Monitor DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Methods and Procedures 17 2.2 Flow Meter Installation A combination of Hach Sigma 910 meters and Hach Flo-Dar meters were installed by V&A in the sewer lines listed in Table 1-1. Continuous depth and velocity readings were recorded by the flow meters on 5-minute intervals. Sigma 910 meters use submerged sensors with a pressure transducer to collect depth readings and an ultrasonic Doppler sensor to determine the average fluid velocity. The ultrasonic sensor emits high-frequency sound waves, which are reflected by air bubbles and suspended particles in the flow. The sensor receives the reflected signal and determines the Doppler frequency shift, which indicates the estimated average flow velocity. The sensor is typically mounted at a manhole inlet to take advantage of smoother upstream flow conditions. Figure 2-1 shows a typical installation for a flow meter with a submerged sensor. Figure 2-1. Typical Installation for Flow Meter with Submerged Sensor The pipe diameter was verified in order to accurately calculate the flow cross-section. In-situ manual (hand) level and velocity measurements were taken and compared to simultaneous level and velocity readings from the flow meters to ensure proper calibration and accuracy. This determination of the level offset is required because of variations in individual flow meters, position of the sensor upon installation, thickness of the mounting band and other factors. During the in-situ calibrations, the technician/engineer reports the actual depth of the flow to the invert of the pipe (dA) while the flow meter reports the depth of water to the sensor (ds). The difference between these is the offset. These sets of measurements are taken at least three times during installation and removal of the flow meters and during mid-project calibrations. The various sets of measurements are used to track the data quality. During site visits, observations of sediment DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Methods and Procedures 18 are noted. If sediment is present, several depth of sediment readings are taken and the type of sediment encountered (sandy, rocky, pebbly) is noted. Most area-velocity meters employ a forward-looking ultrasonic Doppler sensor that does not record velocity if covered by sediment. To mitigate this, the sensor may be offset to a position where sediment is less likely to affect the sensor. It is important to take multiple sediment readings in multiple locations; sediment tends to settle in waves, which affects the accuracy of the sediment measurement if not accounted for. Figure 2-2 illustrates a sensor offset for sediment, and the level measurements recorded during an in situ calibration. Figure 2-3 illustrates sediment wave pattern settlement commonly observed in sewer lines. Figure 2-2. Sensor Offset due to Sediment Figure 2-3. The Settling of Sediment in Pipelines DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Methods and Procedures 19 A Flo-Dar flow meter is a non-contact flow meter that uses radar to measure velocity and a down- looking ultrasonic sensor to measure depth. Figure 2-4 illustrates a typical Flo-Dar installation. Figure 2-4. Typical Flo-Dar Flow Meter Installation DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Methods and Procedures 20 2.3 Flow Calculation Data retrieved from each flow meter was placed into a spreadsheet program for analysis. Data analysis includes data comparison to field calibration measurements, as well as necessary geometric adjustments as required for sediment (sediment reduces the pipe’s wetted cross-sectional area available to carry flow). Area-velocity flow metering uses the continuity equation, ) ( S T A A v A v Q − ⋅ = ⋅ = where Q : volume flow rate v: average velocity as determined by the ultrasonic sensor A: cross-sectional area available to carry flow AT: total cross-sectional area with both wastewater and sediment AS: cross-sectional area of sediment. For circular pipe, − − = − − D d D d D D d D A W W W T 2 1 cos sin 2 2 2 1 cos 4 1 1 2 − − = − − D d D d D D d D A S S S S 2 1 cos sin 2 2 2 1 cos 4 1 1 2 where dW: distance between wastewater surface level and pipe invert dS: depth of sediment D: pipe diameter DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Methods and Procedures 21 2.4 Average Dry Weather Flow Determination For this study, four distinct average dry weather flow curves were established for each site location: • Mondays – Thursdays • Fridays • Saturdays • Sundays Flows for many sites differ on Friday evenings compared to Mondays through Thursdays. Starting around 7 pm, the flows are often decreased (compared to Monday through Thursday). Similarly, flow patterns for Saturday and Sunday were also separated due to their unique evening flow pattern. This type of differentiation can be important when determining I/I response, especially if a rain event occurs on a Friday, Saturday or Sunday evening. Figure 2-5 illustrates a sample of varying flow patterns within a typical week dry week. Figure 2-5. Sample ADWF Diurnal Flow Patterns ADWF curves are taken from “Dry Days” when RDI had the least impact on the baseline flow. The overall average dry weather flow (ADWF) was calculated per the following equation: × + × + × + × = − 7 1 7 1 7 1 7 4 Sun Sat Fri Thu Mon ADWF ADWF ADWF ADWF ADWF , 0.00 1.00 2.00 3.00 4.00 5.00 6.00 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 00 Flow (mgd) Hour Mon-Thu Friday Saturday Sunday DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Methods and Procedures 22 2.5 Inflow/Infiltration Analysis: Definitions and Identification Inflow and infiltration (I/I) consists of stormwater and groundwater that enter the sewer system through pipe defects and improper storm drainage connections and is defined as follows. 2.5.1 Definition and Typical Sources • Stormwater Inflow – defined as water discharged into the sewer system, including private sewer laterals, from direct connections such as downspouts, yard and area drains, holes in manhole covers, cross-connections from storm drains, or catch basins. • Infiltration – defined as water entering the sanitary sewer system through defects in pipes, pipe joints, and manhole walls, which may include cracks, offset joints, root intrusion points, and broken pipes. Figure 2-6 illustrates the possible sources and components of I/I. Figure 2-6. Typical Sources of Infiltration and Inflow . . . Downspout connected to Lateral Manhole Cover with Holes Cross-connection from Storm Catch Basin Area Drain connected to Lateral Deteriorated Manhole Cracked or Damaged Pipe Faulty Lateral Connection to Sanitary Sewer Exfiltration from Storm Sewer Deteriorated Lateral Roof Vent Tree Root Penetration DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Methods and Procedures 23 2.5.2 Infiltration Components Infiltration can be further subdivided into the following components: • Groundwater Infiltration - depends on the depth of the groundwater table above the pipelines as well as the percentage of the system submerged. The variation of groundwater levels and subsequent groundwater infiltration rates is seasonal by nature. On a day-to-day basis, groundwater infiltration rates are relatively steady and will not fluctuate greatly. • Rainfall-Dependent Infiltration - occurs as a result of stormwater and enters the sewer system through pipe defects, as with groundwater infiltration. The stormwater first percolates directly into the soil and then migrates to an infiltration point. Typically, the time of concentration for rainfall-related infiltration may be 24 hours or longer, but this depends on the soil permeability and saturation levels. • Rainfall-Responsive Infiltration - is stormwater that enters the collection system indirectly through pipe defects, but normally in sewers constructed close to the ground surface, such as private laterals. Rainfall-responsive infiltration is independent of the groundwater table and reaches defective sewers by way of the pipe trench in which the sewer is constructed— particularly if the pipe is placed in impermeable soil and bedded and backfilled with a granular material. In this case, the pipe trench serves as a conduit similar to a French drain, conveying storm drainage to defective joints and other openings in the system. This type of infiltration can have a quick response and can appear graphically similar to inflow. 2.5.3 Impact and Cost of Source Detection and Removal • Inflow: ○ Impact - I/I creates a peak flow problem in the sewer system and often dictates the required capacity of pipes and transport facilities to carry these peak instantaneous flows. Because the response and magnitude of inflow is tied closely to the intensity of the storm event, the short-term peak instantaneous flows may result in surcharging and overflows within a collection system. Severe inflow may result in sewage dilution, resulting in upsetting the biological treatment (secondary treatment) at the treatment facility. ○ Cost of Source Identification and Removal - inflow locations are usually less difficult to find and less expensive to correct. These sources include direct and indirect cross- connections with storm drainage systems, roof downspouts, and various types of surface drains. Generally, the costs to identify and remove sources of inflow are low compared to potential benefits to public health and safety or the costs of building new facilities to convey and treat the resulting peak flows. DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Methods and Procedures 24 • Infiltration: ○ Impact - infiltration typically creates long-term annual volumetric problems. The major impact is the cost of pumping and treating the additional volume of water, and of paying for treatment (for municipalities that are billed strictly on flow volume). ○ Cost of Source Detection and Removal - infiltration sources are usually harder to find and more expensive to correct than inflow sources. Infiltration sources include defects in deteriorated sewer pipes or manholes that may be widespread throughout a sanitary sewer system. 2.5.4 Graphical Identification of Inflow and Infiltration Inflow is usually recognized graphically by large-magnitude, short-duration spikes immediately following a rain event. Infiltration is often recognized graphically by a gradual increase in flow after a wet-weather event. The increased flow typically sustains for a period after rainfall has stopped and then gradually drops off as soils become less saturated and as groundwater levels recede to normal levels. Real-time flows were plotted against average dry weather flow (ADWF) to analyze the I/I response to rainfall events. Figure 2-7 illustrates a sample of how this analysis is conducted and some of the measurements that are used to distinguish I/I. Similar graphs were generated for the individual flow monitoring sites and can be found in Appendix A. Figure 2-7. Sample Infiltration and Inflow Isolation Graph DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Methods and Procedures 25 2.5.5 Analysis Methods After differentiating I/I flows from ADWF flows, various calculations can be made to determine which I/I component (inflow or infiltration) is more prevalent at a particular site and to compare the relative magnitudes of the I/I components between drainage basins and between storm events. Inflow or infiltration components are typically normalized in up to three ways: • per-IDM: Inflow or infiltration rates are divided by length of pipe within the drainage basin, expressed in units of inch-diameter-mile (IDM) (miles of pipeline multiplied by the diameter of the pipeline in inches). Final units are gallons per day (gpd) per IDM. • per-ACRE: Inflow or infiltration rates are divided by the acreage of the drainage basin. Final units are gallons per day (gpd) per ACRE. • per-ADWF: Inflow or infiltration rates are divided by the ADWF that was measured and established within the drainage basin. This is a ratio. The number is unit less, but can be thought of in the same light as a Peaking Factor. The infiltration and inflow indicators were normalized only by all three methods for this report per the following weighting system: I/I Analysis Method Weight per-IDM 50% per-ACRE 20% per-ADWF 30% The per-IDM method was given the highest weight because future I/I rehabilitation and/or reduction efforts are typically budgeted per unit length of pipe. It is noted that inflow is subject to the effects of attenuation, explained in the following section. 2.6 Flow Attenuation Flow attenuation in a sewer collection system is the natural process of the reduction of the peak flow rate through redistribution of the same volume of flow over a longer period of time. This occurs as a result of friction (resistance), internal storage and diffusion along the sewer pipes. Fluids are constantly working towards equilibrium. For example, a volume of fluid poured into a static vessel with no outside turbulence will eventually stabilize to a static state, with a smooth fluid surface without peaks and valleys. Attenuation within a sanitary sewer collection system is based upon this concept. A flow profile with a strong peak will tend to stabilize towards equilibrium, as shown in Figure 2-8. DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Methods and Procedures 26 Figure 2-8. Attenuation Illustration Within a sanitary sewer collection system, each individual basin will have a specific flow profile. As the flows from the basins combine within the trunk sewer lines, the peaks from each basin will not necessarily coincide at the same time, and due to the length and time of travel through the trunk sewers, peak flows will attenuate prior to reaching the treatment facility. The sum of the peak flows of the individual basins within a collection system will usually be greater than the peak flows observed at the treatment facility. It is expected that given the size and long conveyance distances within the City, flow attenuation within the District may be considerable. Time Flow Time Flow Time Vol. X Volume Y Volume X = Volume Y DRAFT ---PAGE BREAK--- V&A Project No. 13-0336 Rainfall Results 27 RAINFALL RESULTS 3.0 3.1 Rainfall Monitoring Locations The rainfall data was monitored at four locations installed by V&A as shown in Figure 3-1. V&A also used data publically available through the National Weather Service (NWS) Cooperative Observer Program (COOP) for the purpose of performing quality assurance/quality control (QA/QC) on the V&A data set. The rain gauge locations for V&A and COOP are shown in Figure 3-1. The analyses for the remainder of this report were based on the V&A rain gauge data. Figure 3-1. Rain Gauge Locations DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Rainfall Results 28 3.2 Rainfall Data Rainfall gauges were installed from December 11, 2014 to March 1, 2015. The following rainfall data analysis items are noted: • Prior to the flow monitoring period (December 2 – 10, 2014), there was approximately 1 inch of rainfall which served to saturate the soils after an extended period of extreme drought. • Event 1 (December 11 – 12, 2014) was the most significant storm event of the season and elicited the greatest I/I response from the flow monitoring sites. This event will primarily be used for the I/I analyses later in this report. • Event 2 (December 15 – 18, 2014) and Event 3 (February 6 – 9, 2015) both elicited a strong I/I response and were also analyzed for this study. ○ For flow monitoring sites installed mid-study, or for sites with poor early-season data, Event 3 was the primary event used for I/I analysis. • The series of rainfall events from December 11 – 20, 2014 was analyzed to determine the longer duration classification of this volume of rainfall. This is presented for informational purposes only. Table 3-1 shows the precipitation for the notable rainfall events measured from the four rain gauges. Figure 3-2 illustrates the rain events over the monitoring period (average of all rain gauges shown). Figure 3-3 shows the rainfall accumulation during the monitoring period, as well as the historical average rainfall at the approximate study centroid during this project duration. The historical data was taken from the Western Regional Climate Center (WRCC)3 Station 045738 in Modesto. The cumulative precipitation at the four rain gauges ranged from 79% to 94% of the historical precipitation for the time period shown. Table 3-1. Rainfall Total Summary Rainfall RG North (inches) RG East (inches) RG South (inches) RG West (inches) December 2 – 10, 2014 Approx. 1.00 inches per NWS COOP Rain Gauge Locations Event 1: December 11 – 12, 2014 2.80 2.21 2.66 2.82 Event 2: December 15 – 18, 2014 0.97 0.84 1.05 0.99 Event 3: February 6 – 9, 2015 1.28 1.04 1.16 0.88 Series of Events: December 11 – 20, 2014 4.31 3.47 4.20 4.39 Flow Monitoring Period Totals (December 11, 2014 – March 1, 2015) 5.89 4.95 5.66 5.48 3 http://www.wrcc.dri.edu/cgi-bin/cliMAIN.pl?ca5738 DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Rainfall Results 29 Figure 3-2. Rainfall Distribution over Flow Monitoring Period (Avg. of Four Rain Gauges) Figure 3-3. Rainfall Accumulation Plot 0.00 0.10 0.20 0.30 0.40 0.50 0.60 1-Dec 5-Dec 9-Dec 13-Dec 17-Dec 21-Dec 25-Dec 29-Dec 2-Jan 6-Jan 10-Jan 14-Jan 18-Jan 22-Jan 26-Jan 30-Jan 3-Feb 7-Feb 11-Feb 15-Feb 19-Feb 23-Feb 27-Feb Rain (inches per hour) Total Rainfall over Flow Monitoring Period: 5.49 inches ~1.00 in Ev 1: 2.62 in Ev 2: 0.96 in Ev 3: 1.09 inches 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 11-Dec 15-Dec 19-Dec 23-Dec 27-Dec 31-Dec 4-Jan 8-Jan 12-Jan 16-Jan 20-Jan 24-Jan 28-Jan 1-Feb 5-Feb 9-Feb 13-Feb 17-Feb 21-Feb 25-Feb 1-Mar Rain (inches) RG North RG East RG South RG West Historical Average DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Rainfall Results 30 3.3 Regional Rainfall Event Classification It is important to classify the relative size of a major storm event that occurs over the course of a flow-monitoring period4. Rainfall events are classified by intensity and duration. Based on historical data, frequency contour maps for storm events of given intensity and duration have been developed by the National Oceanic and Atmospheric Administration (NOAA) for Northern California (Figure 3-4). Figure 3-4. NOAA Northern California Rainfall Frequency Map, Isopluvials of 10-year 24-hour precipitation in inches. For example, the NOAA Rainfall Frequency Atlas5 classifies a 10-year, 24-hour storm event at the RG West location as 2.23 inches. This means that in any given year, at this specific location, there is a 10% chance that 2.23 inches of rain will fall in any 24-hour period. From the NOAA frequency maps, for a specific latitude and longitude, the rainfall densities for period durations ranging from 5 minutes to 60 days are known for rain events ranging from 1-year to 1000-year intensities. These were plotted to develop a rain event frequency map specific to each rainfall monitoring site. Superimposing the peak-measured densities for the rainfall events on the rain event frequency plot determines the classification of the rainfall event. 4 Sanitary sewers are often designed to withstand I/I contribution to sanitary flows for specific-sized “design” storm events. 5 NOAA Western U.S. Precipitation Frequency Maps Atlas 2, 1973: DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Rainfall Results 31 Figure 3-5 depicts the classification curves for the rainfall events for RG North, durations between 1 hour and 24 hours. Figure 3-6 shows the classification curve at RG West from 1 day to 7 days. Table 3-2 lists the intensity of the various storm events for each rain gauge. Figure 3-5. Rainfall Event Classification (1 to 24 hours) at RG North Figure 3-6. Rainfall Event Classification (1 to 7 days) at RG West Table 3-2. Rainfall Frequency Return Summary Rainfall Event RG North RG East RG South RG West Event 1: December 11 – 12, 2014 65 year, 14 hr 25 year, 24 hr 20 year, 14 hr 9 year, 24 hr 45 year, 14 hr 21 year, 24 hr 70 year, 14 hr 25 year, 24 hr Event 2: December 15 – 20, 2014 < 1 year < 1 year < 1 year < 1 year Event 3: February 6 – 9, 2015 2 year, 3 hour < 1 year 1 year, 6 hour < 1 year Stacked Events: Dec. 11 – 20, 2014 8-year, 7-day 3.5-year, 7-day 10-year, 7-day 10-year, 7-day 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Precipitation (in.) 12/11/15 - 12/12/15 12/15/15 - 12/20/15 2/6/15 - 2/8/15 1-hr 3-hr 6-hr 24-hr 12-hr 1-yr 2-yr 5-yr 10-yr 2-hr 25-yr 50-yr 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Precipitation (in.) 12/11/2014-12/20/2014 1-day 2-day 4-day 7-day 3-day 1 2 5 10 25 Rainfall Duration Rainfall Duration DRAFT ---PAGE BREAK--- V&A Project No. 13-0336 Flow Monitoring Results 32 FLOW MONITORING RESULTS 4.0 4.1 Baseline Flow Analysis ADWF curves were established during dry days within the flow monitoring period when RDI had the least impact on the baseline flow. Table 4-1 summarizes the baseline flow data measured during this study. Table 4-2 summarizes the sediment present at the flow monitoring sites. Figure 4-1 shows a flow schematic diagram of the overall ADWF and flow levels. Table 4-1. Average Dry Weather Flow Summary Monitoring Site Monday- Thursday ADWF (mgd) Friday ADWF (mgd) Saturday ADWF (mgd) Sunday ADWF (mgd) Overall ADWF (mgd) Site 1-1 5.81 5.77 5.96 6.09 5.87 Site 1-2 4.70 4.68 4.85 5.00 4.76 Site 1-3 1.37 1.34 1.43 1.43 1.38 Site 1-4 1.49 1.37 1.53 1.56 1.49 Site 1-5 5.44 5.12 5.49 5.68 5.44 Site 2-1 3.55 3.58 3.58 3.53 3.56 Site 2-2 2.81 2.72 2.80 2.75 2.79 Site 2-3 0.58 0.55 0.57 0.58 0.57 Site 2-4 1.82 1.71 1.80 1.84 1.80 Site 2-5 0.70 0.69 0.65 0.71 0.69 Site 2-6 0.13 0.13 0.14 0.13 0.13 Site 3-1 1.31 1.27 1.24 1.23 1.28 Site 4-1 0.04 0.04 0.03 0.03 0.04 Site 4-2 0.83 0.89 0.83 0.74 0.83 Site 4-3 0.35 0.34 0.31 0.31 0.34 Site 4-4 0.003 0.003 0.002 0.002 0.002 Site 5-1 7.74 7.55 7.48 7.70 7.67 Site 5-2 2.11 2.09 2.10 2.11 2.11 Site 5-3 1.14 1.11 1.12 1.14 1.13 Site 5-4 0.44 0.43 0.41 0.42 0.43 Site 5-5 0.59 0.58 0.58 0.59 0.59 Site 6-1 7.71 7.51 7.51 7.66 7.65 Site 6-3 1.65 1.53 1.24 1.34 1.53 DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Flow Monitoring Results 33 Monitoring Site Monday- Thursday ADWF (mgd) Friday ADWF (mgd) Saturday ADWF (mgd) Sunday ADWF (mgd) Overall ADWF (mgd) Site 6-4 3.15 3.20 3.30 3.38 3.21 Site 6-5 2.85 2.83 3.08 3.16 2.92 Site 6-6 1.41 1.37 1.44 1.53 1.43 Site 6-7 1.26 1.18 1.29 1.31 1.26 Site 6-8 0.57 0.57 0.63 0.65 0.59 Site 6-9 0.88 0.85 0.93 0.96 0.90 Site 6-10 0.28 0.27 0.29 0.30 0.28 Site 7-1 5.47 5.31 5.23 5.22 5.38 Site 7-2 0.71 0.72 0.76 0.73 0.72 Site 7-B 0.25 0.23 0.17 0.18 0.22 Site 8-1 0.83 0.81 0.77 0.77 0.81 Site 9-1 0.21 0.19 0.18 0.18 0.20 Site 10-1 0.33 0.30 0.33 0.34 0.33 Site A 0.51 0.50 0.55 0.55 0.52 Site B 0.29 0.26 0.23 0.27 0.27 Site C 0.05 0.04 0.05 0.05 0.05 Site E 0.13 0.13 0.12 0.12 0.13 Site F 0.90 0.88 0.87 0.88 0.89 Site G 0.90 1.09 0.49 0.24 0.77 Site H 0.42 0.40 0.41 0.40 0.42 Table 4-2. Flow Monitoring Sites with Sediment Monitoring Site Sediment (inches) Site 1-1 6.00 Site 1-3 0.25 Site 5-3 2.00 Site C 1.00 Site E 0.50 DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Flow Monitoring Results 34 Figure 4-1. Average Dry Weather Flow Schematic DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Flow Monitoring Results 35 4.2 Peak Measured Flows and Pipeline Capacity Analysis Peak measured flows and peak flow depths are important factors to consider when evaluating the capacity of the collection system. The peak flows and flow levels reported are from the peak measurements taken across the entirety of the flow monitoring period and may or may not correspond to a simultaneous event for all sites. The following capacity analysis terms are defined as follows: • Peaking Factor: Peaking factor is defined as the peak measured flow divided by the ADWF. A peaking factor threshold value of 3.0 is commonly used for sanitary sewer design of new pipe; however, it is noted that this value is variable and subject to attenuation and the size of the upstream collector area. The City should follow its own standards and criteria when examining peaking factors. • d/D Ratio: The d/D ratio is the peak measured depth of flow divided by the pipe diameter Standards for d/D ratio vary agency to agency, but typically range between d/D ≤ 0.5 and d/D ≤ 0.75. The d/D ratio for each site was computed based on the maximum depth of flow for the flow monitoring study. Table 4-3 summarizes the peak recorded flows, levels, d/D ratios, and peaking factors per site during the flow monitoring period. Sites that surcharged and sites with peaking factors greater than 6.0 have been shaded in RED. Capacity analysis data is presented on a site-by-site basis and represents the hydraulic conditions only at the point site locations. Hydraulic conditions in other areas of the collection system will differ. Table 4-3. Capacity Analysis Summary Monitoring Site ADWF (mgd) Peak Measured Flow (mgd) Peaking Factor Diameter (inches) Peak Level (inches) d/D Ratio Surcharge Level (feet) Site 1-1 5.91 15.16 2.6 58 50.3 0.87 - Site 1-2 4.81 11.51 2.4 48 25.4 0.53 - Site 1-3 1.39 3.49 2.5 39 15.0 0.39 - Site 1-4 1.49 5.23 3.5 28 19.6 0.70 - Site 1-5 5.43 14.57 2.7 54 27.6 0.51 - Site 2-1 3.56 6.54 1.8 42.75 7.7 0.18 - Site 2-2 2.77 10.06 3.6 31.5 58.9 1.87 2.3 Site 2-3 0.57 1.60 2.8 18.5 55.4 2.99 3.1 Site 2-4 1.79 7.52 4.2 30 71.4 2.38 3.5 Site 2-5 0.69 2.29 3.3 21 78.7 3.75 4.8 Site 2-6 0.13 0.72 5.5 15 12.8 0.85 - Site 3-1 1.26 3.51 2.8 18 16.2 0.90 - DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Flow Monitoring Results 36 Monitoring Site ADWF (mgd) Peak Measured Flow (mgd) Peaking Factor Diameter (inches) Peak Level (inches) d/D Ratio Surcharge Level (feet) Site 4-1 0.036 0.30 8.3 18 5.6 0.31 - Site 4-2 0.82 5.26 6.4 33 19.7 0.60 - Site 4-3 0.33 2.13 6.5 15 19.2 1.28 0.4 Site 4-4 0.002 0.24 105.8 10 6.8 0.68 - Site 5-1 7.62 26.62 3.5 41.5 121.1 2.92 6.6 Site 5-2 2.10 5.40 2.6 28 18.2 0.65 - Site 5-3 1.13 2.73 2.4 25.5 15.1 0.59 - Site 5-4 0.42 1.19 2.8 15 9.4 0.63 - Site 5-5 0.59 1.48 2.5 21 12.1 0.58 - Site 6-1 7.60 25.98 3.4 47.5 97.7 2.06 4.2 Site 6-3 1.44 3.91 2.7 48 12.1 0.25 - Site 6-4 3.26 9.00 2.8 45 20.8 0.46 - Site 6-5 2.98 8.90 3.0 36 16.4 0.46 - Site 6-6 1.44 4.44 3.1 33 15.2 0.46 - Site 6-7 1.26 2.93 2.3 33 8.6 0.26 - Site 6-8 0.61 1.47 2.4 30 9.1 0.30 - Site 6-9 0.90 2.00 2.2 30 11.9 0.40 - Site 6-10 0.29 0.71 2.5 10 22.5 2.25 1.0 Site 7-1 5.31 19.71 3.7 60 40.3 0.67 - Site 7-2 0.73 5.01 6.9 47.75 17.1 0.36 - Site 7-B 0.21 5.48 26.6 30 12.5 0.42 - Site 8-1 0.80 3.00 3.8 24 42.2 1.76 1.5 Site 9-1 0.19 0.99 5.1 30 8.2 0.27 - Site 10-1 0.33 1.09 3.3 24 2.8 0.12 - Site A 0.53 1.76 3.3 18 12.4 0.69 - Site B 0.26 1.55 6.0 16 28.8 1.80 1.1 Site C 0.05 0.20 4.3 15 33.3 2.22 1.5 Site F 0.88 2.82 3.2 18 34.1 1.89 1.3 Site G 0.68 6.73 9.9 48 19.6 0.41 - Site H 0.41 1.95 4.7 24 12.4 0.52 - The following capacity analysis results are noted: • Peaking Factor: Eight flow meters had peaking factors above 6.0. ○ Site 4-4 is an overflow line that has minimal ADWF levels, resulting in a peaking factor that is skewed high due to its very low ADWF. • d/D Ratio: 15 flow monitoring sites had d/D ratios higher than 0.75 d/D. 12 flow monitoring sites surcharged during this study. DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Flow Monitoring Results 37 Figure 4-2 and Figure 4-3 summarize the site-by-site d/D ratios and peaking factors respectively. Figure 4-4 shows a flow schematic diagram of the peak flows and levels. Figure 4-2. Capacity Summary: d/D Ratios Figure 4-3. Capacity Summary: Peaking Factors 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Site 1-1 Site 1-2 Site 1-3 Site 1-4 Site 1-5 Site 2-1 Site 2-2 Site 2-3 Site 2-4 Site 2-5 Site 2-6 Site 3-1 Site 4-1 Site 4-2 Site 4-3 Site 4-4 Site 5-1 Site 5-2 Site 5-3 Site 5-4 Site 5-5 Site 6-1 Site 6-3 Site 6-4 Site 6-5 Site 6-6 Site 6-7 Site 6-8 Site 6-9 Site 6-10 Site 7-1 Site 7-2 Site 7-B Site 8-1 Site 9-1 Site 10-1 Site A Site B Site C Site F Site G Site H d/D Ratio 0.0 2.0 4.0 6.0 8.0 10.0 12.0 Site 1-1 Site 1-2 Site 1-3 Site 1-4 Site 1-5 Site 2-1 Site 2-2 Site 2-3 Site 2-4 Site 2-5 Site 2-6 Site 3-1 Site 4-1 Site 4-2 Site 4-3 Site 4-4 Site 5-1 Site 5-2 Site 5-3 Site 5-4 Site 5-5 Site 6-1 Site 6-3 Site 6-4 Site 6-5 Site 6-6 Site 6-7 Site 6-8 Site 6-9 Site 6-10 Site 7-1 Site 7-2 Site 7-B Site 8-1 Site 9-1 Site 10-1 Site A Site B Site C Site F Site G Site H Peaking Factor 106 Surcharge 0.75 d/D 27 DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Flow Monitoring Results 38 Figure 4-4. Peak Wet Weather Flow Schematic DRAFT ---PAGE BREAK--- V&A Project No. 13-0336 Inflow and Infiltration Results 39 INFLOW AND INFILTRATION 5.0 RESULTS 5.1 Preface V&A first examined the larger City basins to get an overall feel for how the collection system generally responds to rainfall. Results from the large basin analyses helped to guide the analyses performed for sub-basins later in this report. Event 1 (December 11 – 12, 2014) was analyzed for the large basins. Figure 5-1 illustrates the large basins within the City collection system. Note: the “basin” for the CSL line is shown as a circular shape near the lower right corner for this and future illustrations. Additionally, the IDM and acreages for the CSL Basin were not known at the time of the analysis. Rankings for the CSL Basin were based on the “per-ADWF” method of analysis. Figure 5-1. Map of Large Basins DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Inflow and Infiltration Results 40 5.2 Large Basin Inflow Analysis Inflow sources transport rain water directly into the sewer system; the corresponding inflow rates are tied closely to the intensity of the storm. This component of RDI/I often causes a peak flow problem in the sewer system and often dictates the required capacity of pipes and transport facilities to carry these peak instantaneous flows. Large basin inflow results were taken from the storm event occurring from December 11 – 12, 2014. For most locations, this storm event had the strongest peak RDI/I response occurring on December 11 (as shown in Figure 5-2 for Basin Figure 5-2. I/I Isolation Curve, Basin 4 (Inflow Measurement) Table 5-1 summarizes inflow analysis results for the large basins. Figure 5-3 illustrates a temperature map of large basin rankings. Note: inflow is subject to the effects of attenuation. Table 5-1. Inflow Analysis Summary, Large Basins Basin ADWF (mgd) Peak I/I Rate (mgd) Peak I/I per ADWF Peak I/I per IDM (gpd/IDM) Peak I/I per ACRE (gpd/AC) Inflow Ranking Basin 1 5.91 8.25 1.40 4,870 1,310 9 Basin 2 2.77 7.35 2.66 8,140 2,020 6 Basin 3 1.26 2.05 1.62 5,320 1,200 7 Basin 4 1.18 6.35 5.37 17,080 7,540 3 Basin 5 2.10 2.85 1.36 5,030 1,180 10 Basin 6 4.70 6.70 1.43 5,220 1,290 8 Basin 7 0.62 10.00 16.15 30,740 18,850 1 Basin 8 0.80 2.12 2.66 8,920 2,160 5 Basin 9 0.19 0.70 3.61 10,340 1,510 4 Basin 10 0.33 0.61 1.87 3,770 860 10 Basin CSL 0.73 4.37 5.98 n/a n/a 2 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 12/11/14 12/12/14 12/13/14 12/14/14 Rain (in/hr) Flow (MGD) I/I Flow Baseline Realtime IIFlowChart Rain Peak RDI/I Rate: Used for Inflow Analysis DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Inflow and Infiltration Results 41 Figure 5-3. Large Basin Inflow Temperature Map The following inflow analysis results are noted: • Basin 4, Basin 7 and the CSL Basin ranked highest for inflow. DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Inflow and Infiltration Results 42 5.3 Large Basin RDI Analysis Rain dependent infiltration (RDI) is defined as water entering the sanitary sewer system through defects in pipes, pipe joints, and manhole walls, which may include cracks, offset joints, root intrusion points, and broken pipes. Increased flows into the sanitary sewer system are usually tied to groundwater levels and soil saturation levels. Infiltration sources transport rain water into the system indirectly; flow levels in the sanitary system increase gradually, are typically sustained for a period after rainfall has stopped, and then gradually drop off as soils become less saturated and as groundwater levels recede to normal. Infiltration typically creates long-term annual volumetric problems. The major impact is the cost of pumping and treating the additional volume of water, and of paying for treatment (for municipalities that are billed strictly on flow volume). A quantitative RDI analysis could not be performed for this study. Typically, RDI flow rates are analyzed starting 24 hours after the conclusion of rainfall; however for this study, the I/I flows for nearly all large basins receded to baseline levels within 12 hours of the conclusion of the rainfall event, or less for many sites (see Figure 5-4 below). Figure 5-4. I/I Isolation Curve, Basin 4 (RDI Measurement) The following RDI analysis results are noted: • Generally for the City of Modesto, there is minimal sustained infiltration within the collection system, even after a 25-year, 24-hour rainfall event. • The City should focus attention on inflow rather than infiltration when trying to locate and mitigate I/I within the collection system. • A quantitative RDI analysis will not be run for the sub-basins portion of this report6. RDI will still be evaluated qualitatively on a sub-basin by sub-basin basis. 6 RDI Rates would be lower than the acceptable tolerances of inaccuracies inherent to flow monitoring. 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 12/11/14 12/12/14 12/13/14 12/14/14 Rain (in/hr) Flow (MGD) I/I Flow Baseline Realtime IIFlowChart Rain RDI: Returned to Baseline flow rates within 12 hours of conclusion of rainfall DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Inflow and Infiltration Results 43 5.4 Large Basin Combined I/I Analysis Combined I/I analysis considers the totalized volume (in gallons) of both inflow and rainfall- dependent infiltration over the course of a storm event. For example, the total volume of infiltration and inflow into Basin 4 for the December 11 – 12, 2014 storm event calculated out to 3.26 million gallons (hatched area below in Figure 5-5). Figure 5-5. I/I Isolation Curve, Basin 4 (Combined I/I Measurement) Table 5-2 summarizes the combined I/I analysis results for the large basins. Figure 5-6 illustrates a temperature map of the basin rankings for combined I/I. Table 5-2. Combined I/I Analysis Summary, Large Basins Basin ADWF (mgd) Combined I/I (gallons) Combined I/I per ADWF (per in-rain) Combined I/I per IDM (per in-rain) Combined I/I per AC (R-Value) Combined I/I Ranking Basin 1 5.91 5,254,000 0.32 1,120 1.1% 8 Basin 2 2.77 4,534,000 0.60 1,850 1.7% 4 Basin 3 1.26 1,281,000 0.38 1,240 1.0% 7 Basin 4 1.18 3,258,000 1.05 3,340 5.4% 2 Basin 5 2.10 1,344,000 0.26 960 0.8% 10 Basin 6 4.70 3,061,000 0.28 1,030 0.9% 9 Basin 7 0.62 2,719,000 1.79 3,400 7.7% 1 Basin 8 0.80 963,000 0.46 1,550 1.4% 6 Basin 9 0.19 332,000 0.65 1,860 1.0% 4 Basin 10 0.33 230,000 0.27 540 0.5% 11 Basin CSL 0.73 1,701,000 0.95 n/a n/a 3 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 12/11/14 12/12/14 12/13/14 12/14/14 Rain (in/hr) Flow (MGD) I/I Flow Baseline Realtime Rain Total Volume: 3,258,000 gallons DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Inflow and Infiltration Results 44 Figure 5-6. Large Basin Combined I/I Temperature Map The following combined I/I analysis results are noted: • Basin 4, Basin 7 and the CSL Basin ranked highest for combined I/I. • Basin rankings for combined I/I are very similar to the inflow rankings. Per the RDI analysis it was determined that RDI contribution is minimal and the inflow component is the principal component for RDI/I in the City of Modesto. It makes sense that the combined I/I rankings would be similar to the inflow rankings. DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Inflow and Infiltration Results 45 5.5 Large Basin Groundwater Infiltration Analysis Dry weather or baseline flows in residential service areas may have predictable diurnal flow patterns. While each site is unique, experience has shown that, given a reasonable volume of flow and typical loading conditions, daily flows fall into a probable range when compared to the daily average flow. However, if a site has a significant contribution of groundwater infiltration (GWI) the amplitudes of the peak and low flows will be dampened7 relative to the baseline flow. Figure 5-7 shows a sample of two flow monitoring sites, both with nearly the same average daily flow, but with considerably different peak and low flows. In this sample case, Site B1 may have a considerable and steady rate of groundwater infiltrating into the basin upstream from the flow monitoring site. Figure 5-7. Groundwater Infiltration Sample Figure It can be useful to compare the low-to-ADWF flow ratios for the flow metering sites. A site with abnormal ratios, and with no other reasons to suspect abnormal flow patterns (such as proximity to a pump station, treatment facilities, non-residential service, etc.), may have higher levels of groundwater infiltration in comparison to the rest of the collection system. Figure 5-8 plots the low-to-ADWF flow ratios against the ADWF flows for the sites monitored during this study. The dotted line shows “typical” low-to-ADWF ratios per the Water Environment Federation (WEF)8. 7 In an extreme case, perhaps 0.2 mgd of ADWF flow and 2.0 mgd of groundwater infiltration, the peaks and lows would be barely recognizable; the ADWF flow would appear to be nearly a straight line. 8 WEF Manual of Practice No. 9, “Design and Construction of Sanitary and Storm Sewers.” West County Wastewater District: B1 and A9 Baseline Weekday Flows 0.0 0.1 0.2 0.3 0.4 0.5 0.6 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 00 Hour Flow N1 (MGD) Site A9 Site B1 Site B1 Baseline Weekday Flow: 0.30 MGD Site A9 Baseline Weekday Flow: 0.28 MGD DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Inflow and Infiltration Results 46 Figure 5-8. Minimum Flow Ratios vs. ADWF9 The following GWI results are noted: • Basins 7 and the CSL basin have GWI indicators higher than typical values; however, the service areas of Basin 7 and the CSl Basin are both known to be significantly industrial in nature. The probability of off-hour discharges from industrial services explains the higher low- to-average baseline flow ratios and cannot be assigned to groundwater infiltration. • Basin 3 appears to be mostly residential service; however, there does appear to be a significant industrial service connection within Basin 3 (Powder Warehouse, 415 Kansas Avenue) which could explain the higher baseline flow ratios. • Groundwater infiltration and rain dependent infiltration often result from similar pipeline defects and soil permeation conditions. The City collection system generally has very low RDI contribution; therefore, it is possible that groundwater infiltration rates within the City will also be low. • Based on the data and information known to date, groundwater infiltration rates appear to be within acceptable ranges. 9 Due to attenuation, it should be expected that sites with larger flow volumes should not have quite the peak-to-average and low-to- average flow ratios as sites with lesser flow volumes, which is why the WEF typical trend lines slope closer to 1.0 as the ADWF increases, as shown in the figure. - 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 5.50 6.00 Minimum to Average Flow Ratio ADWF (mgd) WEF Typical Low-to-Average Ratio Basin 3 CSL Basin Basin 7 DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Inflow and Infiltration Results 47 5.6 Sub-Basin Inflow and Infiltration Results Summary Inflow and infiltration data for the 34 sub-basins were analyzed per the methods defined in Section 2.5.5 (also refer to Section 5.2 for the calculations performed for the Large Basins). RDI/I analysis data from each of the following rainfall events were considered when determining the sub-basin rankings: • Event 1, December 11 – 12, 2014 • Event 2, December 15 – 18, 2014 • Event 3, February 6 – 9, 2015 Figure 5-9 illustrates a temperature map of the sub-basin inflow rankings. Figure 5-10 illustrates the temperature map for the sub-basin combined I/I rankings. Figure 5-9. Sub-basin Inflow Temperature Map DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Inflow and Infiltration Results 48 Figure 5-10. Sub-basin Combined I/I Temperature Map The sub-basins were qualitatively evaluated for evidence of RDI, detailed more in the following section. Table 5-3 at the conclusion of this chapter summarizes the final rankings for each sub- basin. DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Inflow and Infiltration Results 49 5.6.1 Sub-Basin RDI Review As evidenced in the large basin RDI analysis (Section 5.3), most of the flow monitoring sites had minimal RDI, with a quick return to baseline flows after the rainfall events. Within the sub-basins RDI analyses, three sites had sustained infiltration past the conclusion of rainfall: • Site 2-6: Site 2-6 had the highest normalized RDI rates for all sites evaluated; it took several days for flows to return to baseline levels. Figure 5-11 illustrates the Site 2-6 flows for Events 1 and 2. There was a similar delayed return to baseline levels for Event 3 as well. • Site 2-5: Site 2-5 showed evidence of sustained infiltration. The RDI rates were generally low and are noted, but not considered worthy of additional investigation. Figure 5-12 illustrates the RDI for Site 2-5. • Site 6-3: Site 6-3 showed evidence of sustained infiltration. The RDI rates were generally low and are noted, but not considered worthy of additional investigation. Figure 5-13 illustrates the RDI for Site 6-3. Figure 5-10 illustrates the temperature map for sub-basins with an indication of RDI. Figure 5-11. Site 2-6 Flows Hydrographs (December 11 – 22, 2014) Figure 5-12. I/I Isolation Curve, Site 2-5, Event 3 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.00 0.20 0.40 0.60 0.80 1.00 1.20 11-Dec 12-Dec 13-Dec 14-Dec 15-Dec 16-Dec 17-Dec 18-Dec 19-Dec 20-Dec 21-Dec Rain (in/hr) Flow (mgd) 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.0 0.5 1.0 1.5 2.0 2.5 3.0 2/8/15 2/9/15 2/10/15 Rain (in/hr) Flow (MGD) I/I Flow Baseline Realtime Rain RDI continuing over 24 hours after rainfall concluded. Longer return to baseline flows. RDI: sustained infiltration after conclusion of rainfall DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Inflow and Infiltration Results 50 Figure 5-13. I/I Isolation Curve, Site 6-3, Event 1 Figure 5-14. Sub-basin RDI Temperature Map 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 12/11/14 12/12/14 12/13/14 12/14/14 Rain (in/hr) Flow (MGD) I/I Flow Baseline Realtime Rain RDI: sustained infiltration after conclusion of rainfall DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Inflow and Infiltration Results 51 Table 5-3 summarizes the final rankings for each sub-basin. Table 5-3. Summary of Sub-Basin I/I Results Basin Inflow Ranking Indication of RDI? Combined RDI/I Ranking Basin 1-2 34 No 27 Basin 1-3 33 No 31 Basin 1-4 19 No 21 Basin 1-5 6 No 13 Basin 2-2 17 No 16 Basin 2-3 19 No 30 Basin 2-4 21 No 18 Basin 2-5 15 Slight 11 Basin 2-6 13 Strong 5 Basin 3-1 31 No 33 Basin 4 4 No 4 Basin 5-2 24 No 31 Basin 5-3 24 No 20 Basin 5-4 8 No 7 Basin 5-5 17 No 22 Basin 6-3 9 Slight 5 Basin 6-4 28 No 24 Basin 6-5 14 No 17 Basin 6-6 5 No 8 Basin 6-7 29 No 25 Basin 6-8 32 No 28 Basin 6-9 29 No 28 Basin 6-10 26 No 22 Basin 7-1 6 No 2 Basin 7-B 1 No 1 Basin 8-1 16 No 11 Basin 9-1 11 No 13 Basin 10-1 22 No 26 Basin A 10 No 15 Basin B 12 No 10 Basin C 27 No 34 Basin F 23 No 18 Basin H 3 No 9 Basin CSL 2 No 3 DRAFT ---PAGE BREAK--- V&A Project No. 13-0336 Recommendations 52 RECOMMENDATIONS 6.0 Baseline sanitary flows have been established and have been delivered to Carollo for the development of an update to the WWMP and to update the Wastewater Collection System Hydraulic Model. It is emphasized that, while V&A does rank and categorize the various basins and sub-basins in terms of inflow and infiltration contribution into the City’s collection system, it is not V&A’s intent to suggest the next course of action to be taken in regards to any CIP decisions regarding the collection system capacity or RDI/I mitigation. The master planning consultant will consider several other factors during the WWMP process to identify and recommend future wastewater system capital improvement projects. These data and the following recommendations should be considered in conjunction with other relevant data and information (for example, future land use, design buildout, hydraulic upgrades, etc.) and used per the discretion of the City Engineer. With this in mind, V&A advises that future RDI/I reduction plans consider the following: 1. Determine RDI/I Reduction Program: The District could examine its RDI/I reduction needs to determine goals for a future RDI/I reduction program. a. If peak flows, sanitary sewer overflows, and pipeline capacity issues are of greater concern, then priority can be given to investigate and reduce sources of inflow within the basins with the higher inflow ratios. b. If infiltration and general pipeline deterioration are of greater concern, then the program can be weighted to investigate and reduce sources of infiltration within the basins with the higher RDI ratios. c. Generally for the City, there is minimal sustained infiltration within the collection system. V&A recommends any City RDI/I reduction program be prioritized to reduce sources of inflow. d. The basins with the highest rates of inflow were Basin 4, Basin 7 and the CSL Basin. Sub- Basin 1-5, Basin 6-6 and Basin H also had high rates of inflow. 2. RDI/I Investigation Methods: Potential RDI/I investigation methods include the following: a. Smoke testing: the objective with this step is to ascertain whether defects from laterals originate via direct connections or through laterals with breaks, offset joints and/or cracks. The District could perform smoke testing on segments with known sources of RDI/I from laterals to find the 'low hanging fruit'; i.e., the direct connections from area drains, roof leaders or other similar connections. b. Sub-basin flow monitoring: Larger basins with high RDI/I can be reduced into smaller sub basins by conducting a more focused flow monitoring and RDI/I study specific to focused basins. DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & inflow/Infiltration Study V&A Project No. 13-0336 Recommendations 53 c. Nighttime reconnaissance work to investigate and determine direct point sources of inflow and determine the areas and pipe reaches responsible for high levels of infiltration contribution. d. Focused CCTV RDI/I Investigation: CCTV RDI/I investigation can determine exact locations of infiltration occurring within the pipe mains and at the lateral-to-pipe main joint. The CCTV RDI/I investigation will document which laterals have significant volumes of infiltration contributing to the collection system, and may document whether the RDI/I is occurring in the upper or lower portion of the pipe lateral. A great benefit from this work is that the percentage of infiltration coming from laterals versus pipe mains can be effectively quantified. 3. RDI/I Reduction Cost Effective Analysis: The District should conduct a study to determine which is more cost-effective: locating the sources of RDI/I and systematically rehabilitating or replacing the faulty pipelines; or continued treatment of the additional rainfall dependent RDI/I flow. DRAFT ---PAGE BREAK--- V&A Project No. 13-0336 Appendix A APPENDIX A. FLOW MONITORING SITES: DATA, GRAPHS, INFORMATION DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 1-1 MH ID 064091400: Soccer field, south of John Street and Thomas Street Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 1-1 Data Summary Report 1-1 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 1-1 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 58 inches Baseline Flow: 5.910 mgd Peak Measured Flow: 15.157 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 064091400: Soccer field, south of John Street and Thomas Street Coordinates: 121.0233° W, 37.6104° N V&A Project No. 13-0336 1-1 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 1-1 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.62 inches Avg Period Flow: 5.953 MGal Peak Daily Flow: 8.968 MGal Min Daily Flow: 4.818 MGal V&A Project No. 13-0336 1-1 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 1-1 Flow Summary: 12/11/2014 to 1/19/2015 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.39 inches Avg Flow: 5.941 mgd Peak Flow: 15.157 mgd Min Flow: 2.371 mgd V&A Project No. 13-0336 1-1 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 1-1 Flow Summary: 1/20/2015 to 3/1/2015 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.22 inches Avg Flow: 5.966 mgd Peak Flow: 9.671 mgd Min Flow: 2.974 mgd V&A Project No. 13-0336 1-1 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 1-1 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 5.91 mgd Baseline Flow: V&A Project No. 13-0336 1-1 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 1-1 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 50.3 Peak d/D Ratio: 0.87 Pipe Diameter: 58 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 10 20 30 40 50 60 70 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 43.5 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 10 20 30 40 50 60 70 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 1-1 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 1-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.77 inches Event 1 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.77 inches) 15.16 50.34 Peak Flow: PF: Peak Level: mgd in 2.56 d/D Ratio: 0.87 Capacity 8.25 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 5,254,000 V&A Project No. 13-0336 1.1 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 1-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 1.00 inches Event 2 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 1.00 inches) 8.91 32.40 Peak Flow: PF: Peak Level: mgd in 1.51 d/D Ratio: 0.56 Capacity 2.79 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 1,601,000 V&A Project No. 13-0336 1.1 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 1-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.74 inches Event 3 0.00 2.00 4.00 6.00 8.00 10.00 12.00 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.74 inches) 9.67 36.13 Peak Flow: PF: Peak Level: mgd in 1.64 d/D Ratio: 0.62 Capacity 2.65 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 674,000 V&A Project No. 13-0336 1.1 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 1-1 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 10 20 30 40 50 60 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.78 inches Avg Level: 28.78 in. Peak Level: 50.34 in. Min Level: 18.84 in. Avg Velocity: 1.42 fps Peak Velocity: 1.66 fps Min Velocity: 1.08 fps Avg Flow: 7.430 mgd Peak Flow: 15.157 mgd Min Flow: 3.069 mgd V&A Project No. 13-0336 1-1 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 1-1 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 10 20 30 40 50 60 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.53 inches Avg Level: 25.92 in. Peak Level: 32.40 in. Min Level: 18.69 in. Avg Velocity: 1.32 fps Peak Velocity: 1.59 fps Min Velocity: 0.99 fps Avg Flow: 5.941 mgd Peak Flow: 8.907 mgd Min Flow: 3.017 mgd V&A Project No. 13-0336 1-1 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 1-1 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 10 20 30 40 50 60 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.05 inches Avg Level: 25.28 in. Peak Level: 30.59 in. Min Level: 18.92 in. Avg Velocity: 1.25 fps Peak Velocity: 1.60 fps Min Velocity: 0.71 fps Avg Flow: 5.440 mgd Peak Flow: 8.180 mgd Min Flow: 2.371 mgd V&A Project No. 13-0336 1-1 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 1-1 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 10 20 30 40 50 60 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 25.40 in. Peak Level: 31.89 in. Min Level: 18.81 in. Avg Velocity: 1.33 fps Peak Velocity: 1.66 fps Min Velocity: 1.13 fps Avg Flow: 5.822 mgd Peak Flow: 9.224 mgd Min Flow: 3.076 mgd V&A Project No. 13-0336 1-1 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 1-1 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 10 20 30 40 50 60 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 25.59 in. Peak Level: 32.09 in. Min Level: 18.60 in. Avg Velocity: 1.33 fps Peak Velocity: 1.57 fps Min Velocity: 1.13 fps Avg Flow: 5.845 mgd Peak Flow: 8.530 mgd Min Flow: 3.038 mgd V&A Project No. 13-0336 1-1 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 1-1 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 10 20 30 40 50 60 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 25.60 in. Peak Level: 31.66 in. Min Level: 18.54 in. Avg Velocity: 1.32 fps Peak Velocity: 1.59 fps Min Velocity: 1.10 fps Avg Flow: 5.806 mgd Peak Flow: 8.421 mgd Min Flow: 3.190 mgd V&A Project No. 13-0336 1-1 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 1-1 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 10 20 30 40 50 60 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.04 inches Avg Level: 25.48 in. Peak Level: 31.94 in. Min Level: 18.56 in. Avg Velocity: 1.31 fps Peak Velocity: 1.53 fps Min Velocity: 1.12 fps Avg Flow: 5.728 mgd Peak Flow: 8.075 mgd Min Flow: 2.983 mgd V&A Project No. 13-0336 1-1 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 1-1 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 10 20 30 40 50 60 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 25.95 in. Peak Level: 31.52 in. Min Level: 18.59 in. Avg Velocity: 1.35 fps Peak Velocity: 1.62 fps Min Velocity: 1.07 fps Avg Flow: 6.079 mgd Peak Flow: 8.780 mgd Min Flow: 3.060 mgd V&A Project No. 13-0336 1-1 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 1-1 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 10 20 30 40 50 60 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.05 inches Avg Level: 25.88 in. Peak Level: 36.13 in. Min Level: 19.02 in. Avg Velocity: 1.33 fps Peak Velocity: 1.59 fps Min Velocity: 1.03 fps Avg Flow: 5.998 mgd Peak Flow: 9.671 mgd Min Flow: 3.029 mgd V&A Project No. 13-0336 1-1 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 1-1 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 10 20 30 40 50 60 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 25.92 in. Peak Level: 32.40 in. Min Level: 19.72 in. Avg Velocity: 1.34 fps Peak Velocity: 1.62 fps Min Velocity: 1.06 fps Avg Flow: 6.054 mgd Peak Flow: 8.615 mgd Min Flow: 3.386 mgd V&A Project No. 13-0336 1-1 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 1-1 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 10 20 30 40 50 60 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.13 inches Avg Level: 25.80 in. Peak Level: 31.02 in. Min Level: 19.47 in. Avg Velocity: 1.34 fps Peak Velocity: 1.62 fps Min Velocity: 1.07 fps Avg Flow: 5.998 mgd Peak Flow: 8.606 mgd Min Flow: 3.395 mgd V&A Project No. 13-0336 1-1 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 1-1 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 10 20 30 40 50 60 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 25.73 in. Peak Level: 31.72 in. Min Level: 18.61 in. Avg Velocity: 1.33 fps Peak Velocity: 1.59 fps Min Velocity: 1.10 fps Avg Flow: 5.933 mgd Peak Flow: 9.130 mgd Min Flow: 2.974 mgd V&A Project No. 13-0336 1-1 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 1-2 MH ID 133081104: Conant Avenue and Sisk Road Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 1-2 Data Summary Report 1-2 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 1-2 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 48 inches Baseline Flow: 4.808 mgd Peak Measured Flow: 11.512 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 133081104: Conant Avenue and Sisk Road Coordinates: 121.0404° W, 37.6731° N V&A Project No. 13-0336 1-2 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 1-2 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.66 inches Avg Period Flow: 4.887 MGal Peak Daily Flow: 6.711 MGal Min Daily Flow: 4.539 MGal V&A Project No. 13-0336 1-2 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 1-2 Flow Summary: 12/11/2014 to 1/19/2015 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.37 inches Avg Flow: 4.961 mgd Peak Flow: 11.512 mgd Min Flow: 2.066 mgd V&A Project No. 13-0336 1-2 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 1-2 Flow Summary: 1/20/2015 to 3/1/2015 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.29 inches Avg Flow: 4.814 mgd Peak Flow: 8.699 mgd Min Flow: 2.013 mgd V&A Project No. 13-0336 1-2 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 1-2 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 4.81 mgd Baseline Flow: V&A Project No. 13-0336 1-2 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 1-2 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 25.4 Peak d/D Ratio: 0.53 Pipe Diameter: 48 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 10 20 30 40 50 60 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 36.0 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 10 20 30 40 50 60 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 1-2 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 1-2 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.76 inches Event 1 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.76 inches) 11.51 25.42 Peak Flow: PF: Peak Level: mgd in 2.39 d/D Ratio: 0.53 Capacity 6.01 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 3,865,000 V&A Project No. 13-0336 1.2 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 1-2 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 1.00 inches Event 2 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 1.00 inches) 7.11 19.13 Peak Flow: PF: Peak Level: mgd in 1.48 d/D Ratio: 0.40 Capacity 1.68 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 801,000 V&A Project No. 13-0336 1.2 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 1-2 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.77 inches Event 3 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.77 inches) 8.70 21.54 Peak Flow: PF: Peak Level: mgd in 1.81 d/D Ratio: 0.45 Capacity 3.06 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 484,000 V&A Project No. 13-0336 1.2 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 1-2 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.77 inches Avg Level: 17.61 in. Peak Level: 25.42 in. Min Level: 12.52 in. Avg Velocity: 2.09 fps Peak Velocity: 2.64 fps Min Velocity: 1.36 fps Avg Flow: 5.841 mgd Peak Flow: 11.512 mgd Min Flow: 2.348 mgd V&A Project No. 13-0336 1-2 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 1-2 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.52 inches Avg Level: 16.11 in. Peak Level: 19.52 in. Min Level: 12.26 in. Avg Velocity: 2.02 fps Peak Velocity: 2.45 fps Min Velocity: 1.32 fps Avg Flow: 4.926 mgd Peak Flow: 7.140 mgd Min Flow: 2.220 mgd V&A Project No. 13-0336 1-2 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 1-2 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.05 inches Avg Level: 16.04 in. Peak Level: 19.65 in. Min Level: 12.47 in. Avg Velocity: 2.02 fps Peak Velocity: 2.48 fps Min Velocity: 1.32 fps Avg Flow: 4.926 mgd Peak Flow: 7.346 mgd Min Flow: 2.233 mgd V&A Project No. 13-0336 1-2 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 1-2 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 16.08 in. Peak Level: 19.70 in. Min Level: 12.44 in. Avg Velocity: 1.99 fps Peak Velocity: 2.42 fps Min Velocity: 1.29 fps Avg Flow: 4.885 mgd Peak Flow: 7.256 mgd Min Flow: 2.175 mgd V&A Project No. 13-0336 1-2 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 1-2 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 16.01 in. Peak Level: 19.41 in. Min Level: 12.09 in. Avg Velocity: 1.97 fps Peak Velocity: 2.53 fps Min Velocity: 1.22 fps Avg Flow: 4.782 mgd Peak Flow: 7.169 mgd Min Flow: 2.066 mgd V&A Project No. 13-0336 1-2 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 1-2 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 16.07 in. Peak Level: 19.56 in. Min Level: 12.54 in. Avg Velocity: 1.95 fps Peak Velocity: 2.48 fps Min Velocity: 1.18 fps Avg Flow: 4.741 mgd Peak Flow: 7.265 mgd Min Flow: 2.068 mgd V&A Project No. 13-0336 1-2 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 1-2 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.04 inches Avg Level: 16.21 in. Peak Level: 20.31 in. Min Level: 12.29 in. Avg Velocity: 1.96 fps Peak Velocity: 2.45 fps Min Velocity: 1.25 fps Avg Flow: 4.854 mgd Peak Flow: 7.677 mgd Min Flow: 2.178 mgd V&A Project No. 13-0336 1-2 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 1-2 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 16.18 in. Peak Level: 19.50 in. Min Level: 12.63 in. Avg Velocity: 1.97 fps Peak Velocity: 2.45 fps Min Velocity: 1.18 fps Avg Flow: 4.844 mgd Peak Flow: 7.505 mgd Min Flow: 2.013 mgd V&A Project No. 13-0336 1-2 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 1-2 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.10 inches Avg Level: 16.06 in. Peak Level: 21.54 in. Min Level: 12.38 in. Avg Velocity: 1.94 fps Peak Velocity: 2.46 fps Min Velocity: 1.26 fps Avg Flow: 4.737 mgd Peak Flow: 8.699 mgd Min Flow: 2.148 mgd V&A Project No. 13-0336 1-2 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 1-2 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 16.25 in. Peak Level: 19.19 in. Min Level: 12.60 in. Avg Velocity: 1.95 fps Peak Velocity: 2.38 fps Min Velocity: 1.25 fps Avg Flow: 4.821 mgd Peak Flow: 6.931 mgd Min Flow: 2.312 mgd V&A Project No. 13-0336 1-2 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 1-2 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.15 inches Avg Level: 16.24 in. Peak Level: 20.10 in. Min Level: 12.18 in. Avg Velocity: 1.97 fps Peak Velocity: 2.42 fps Min Velocity: 1.26 fps Avg Flow: 4.880 mgd Peak Flow: 7.328 mgd Min Flow: 2.195 mgd V&A Project No. 13-0336 1-2 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 1-2 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 16.30 in. Peak Level: 19.36 in. Min Level: 12.52 in. Avg Velocity: 1.94 fps Peak Velocity: 2.38 fps Min Velocity: 1.25 fps Avg Flow: 4.817 mgd Peak Flow: 7.028 mgd Min Flow: 2.112 mgd V&A Project No. 13-0336 1-2 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 1-3 MH ID 123081308: North of Hahn Drive and English Oaks Drive in southbound lane of Hahn Drive, across Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 1-3 Data Summary Report 1-3 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 1-3 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 39 inches Baseline Flow: 1.393 mgd Peak Measured Flow: 3.486 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 123081308: North of Hahn Drive and English Oaks Drive in southbound lane of Hahn Drive, across from apartments Coordinates: 121.0452° W, 37.6835° N V&A Project No. 13-0336 1-3 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 1-3 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 4.43 inches Avg Period Flow: 1.470 MGal Peak Daily Flow: 1.869 MGal Min Daily Flow: 1.305 MGal V&A Project No. 13-0336 1-3 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 1-3 Flow Summary: 12/11/2014 to 1/19/2015 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.45 inches Avg Flow: 1.470 mgd Peak Flow: 3.486 mgd Min Flow: 0.415 mgd V&A Project No. 13-0336 1-3 - 4 Appendix A DRAFT Site removed mid-study Last data, January 14 ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 1-3 Flow Summary: 1/20/2015 to 3/1/2015 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.16 inches Avg Flow: mgd Peak Flow: mgd Min Flow: mgd V&A Project No. 13-0336 1-3 - 5 Appendix A DRAFT Meter was not installed for this time period. This page left intensionally blank. ---PAGE BREAK--- SITE 1-3 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.50 1.00 1.50 2.00 2.50 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 1.39 mgd Baseline Flow: V&A Project No. 13-0336 1-3 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 1-3 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 15.0 Peak d/D Ratio: 0.39 Pipe Diameter: 39 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 5 10 15 20 25 30 35 40 45 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 29.2 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 5 10 15 20 25 30 35 40 45 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 1-3 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 1-3 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.80 inches Event 1 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.80 inches) 3.49 15.03 Peak Flow: PF: Peak Level: mgd in 2.50 d/D Ratio: 0.39 Capacity 1.93 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 985,000 V&A Project No. 13-0336 1.3 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 1-3 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 1.01 inches Event 2 0.00 0.50 1.00 1.50 2.00 2.50 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 1.01 inches) 2.34 12.43 Peak Flow: PF: Peak Level: mgd in 1.68 d/D Ratio: 0.32 Capacity 0.78 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 356,000 V&A Project No. 13-0336 1.3 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 1-3 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.81 inches Avg Level: 10.91 in. Peak Level: 15.03 in. Min Level: 7.00 in. Avg Velocity: 1.29 fps Peak Velocity: 1.85 fps Min Velocity: 0.62 fps Avg Flow: 1.656 mgd Peak Flow: 3.486 mgd Min Flow: 0.420 mgd V&A Project No. 13-0336 1-3 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 1-3 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.55 inches Avg Level: 10.36 in. Peak Level: 12.78 in. Min Level: 7.19 in. Avg Velocity: 1.28 fps Peak Velocity: 1.65 fps Min Velocity: 0.69 fps Avg Flow: 1.510 mgd Peak Flow: 2.499 mgd Min Flow: 0.476 mgd V&A Project No. 13-0336 1-3 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 1-3 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.05 inches Avg Level: 10.50 in. Peak Level: 13.05 in. Min Level: 6.73 in. Avg Velocity: 1.26 fps Peak Velocity: 1.66 fps Min Velocity: 0.68 fps Avg Flow: 1.522 mgd Peak Flow: 2.579 mgd Min Flow: 0.429 mgd V&A Project No. 13-0336 1-3 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 1-3 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 10.00 in. Peak Level: 12.54 in. Min Level: 6.64 in. Avg Velocity: 1.26 fps Peak Velocity: 1.64 fps Min Velocity: 0.70 fps Avg Flow: 1.419 mgd Peak Flow: 2.353 mgd Min Flow: 0.427 mgd V&A Project No. 13-0336 1-3 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 1-3 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 10.00 in. Peak Level: 12.42 in. Min Level: 6.90 in. Avg Velocity: 1.21 fps Peak Velocity: 1.63 fps Min Velocity: 0.64 fps Avg Flow: 1.363 mgd Peak Flow: 2.301 mgd Min Flow: 0.415 mgd V&A Project No. 13-0336 1-3 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 1-3 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 9.86 in. Peak Level: 11.95 in. Min Level: 6.85 in. Avg Velocity: 1.25 fps Peak Velocity: 1.58 fps Min Velocity: 0.69 fps Avg Flow: 1.373 mgd Peak Flow: 2.174 mgd Min Flow: 0.458 mgd V&A Project No. 13-0336 1-3 - 15 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 1-4 MH ID 083091510: Woodrow Avenue and Mark Allen Drive, at stop sign on Mark Allen Drive Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 1-4 Data Summary Report 1-4 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 1-4 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 28 inches Baseline Flow: 1.488 mgd Peak Measured Flow: 5.234 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 083091510: Woodrow Avenue and Mark Allen Drive, at stop sign on Mark Allen Drive Coordinates: 120.9991° W, 37.6855° N V&A Project No. 13-0336 1-4 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 1-4 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 4.34 inches Avg Period Flow: 1.477 MGal Peak Daily Flow: 2.113 MGal Min Daily Flow: 1.357 MGal V&A Project No. 13-0336 1-4 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 1-4 Flow Summary: 12/11/2014 to 1/19/2015 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.35 inches Avg Flow: 1.477 mgd Peak Flow: 5.234 mgd Min Flow: 0.275 mgd V&A Project No. 13-0336 1-4 - 4 Appendix A DRAFT Site removed mid-study Last data, January 14 ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 1-4 Flow Summary: 1/20/2015 to 3/1/2015 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.48 inches Avg Flow: mgd Peak Flow: mgd Min Flow: mgd V&A Project No. 13-0336 1-4 - 5 Appendix A DRAFT Meter was not installed for this time period. This page left intensionally blank. ---PAGE BREAK--- SITE 1-4 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.50 1.00 1.50 2.00 2.50 3.00 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 1.49 mgd Baseline Flow: V&A Project No. 13-0336 1-4 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 1-4 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 19.6 Peak d/D Ratio: 0.70 Pipe Diameter: 28 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 5 10 15 20 25 30 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 21.0 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 5 10 15 20 25 30 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 1-4 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 1-4 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.76 inches Event 1 0.00 1.00 2.00 3.00 4.00 5.00 6.00 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.76 inches) 5.23 19.57 Peak Flow: PF: Peak Level: mgd in 3.52 d/D Ratio: 0.70 Capacity 3.27 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 1,459,000 V&A Project No. 13-0336 1.4 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 1-4 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.98 inches Event 2 0.00 0.50 1.00 1.50 2.00 2.50 3.00 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 0.98 inches) 2.80 12.41 Peak Flow: PF: Peak Level: mgd in 1.88 d/D Ratio: 0.44 Capacity 1.08 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 400,000 V&A Project No. 13-0336 1.4 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 1-4 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.77 inches Avg Level: 9.57 in. Peak Level: 19.57 in. Min Level: 5.01 in. Avg Velocity: 1.93 fps Peak Velocity: 2.64 fps Min Velocity: 0.94 fps Avg Flow: 1.720 mgd Peak Flow: 5.234 mgd Min Flow: 0.324 mgd V&A Project No. 13-0336 1-4 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 1-4 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.50 inches Avg Level: 8.85 in. Peak Level: 12.41 in. Min Level: 4.90 in. Avg Velocity: 1.85 fps Peak Velocity: 2.48 fps Min Velocity: 0.85 fps Avg Flow: 1.453 mgd Peak Flow: 2.799 mgd Min Flow: 0.275 mgd V&A Project No. 13-0336 1-4 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 1-4 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.06 inches Avg Level: 8.74 in. Peak Level: 11.82 in. Min Level: 4.80 in. Avg Velocity: 1.84 fps Peak Velocity: 2.47 fps Min Velocity: 0.95 fps Avg Flow: 1.436 mgd Peak Flow: 2.600 mgd Min Flow: 0.306 mgd V&A Project No. 13-0336 1-4 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 1-4 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 8.76 in. Peak Level: 11.75 in. Min Level: 4.91 in. Avg Velocity: 1.83 fps Peak Velocity: 2.45 fps Min Velocity: 0.96 fps Avg Flow: 1.428 mgd Peak Flow: 2.596 mgd Min Flow: 0.329 mgd V&A Project No. 13-0336 1-4 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 1-4 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 9.01 in. Peak Level: 11.76 in. Min Level: 5.18 in. Avg Velocity: 1.80 fps Peak Velocity: 2.41 fps Min Velocity: 0.92 fps Avg Flow: 1.446 mgd Peak Flow: 2.648 mgd Min Flow: 0.366 mgd V&A Project No. 13-0336 1-4 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 1-4 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 9.09 in. Peak Level: 11.42 in. Min Level: 5.48 in. Avg Velocity: 1.85 fps Peak Velocity: 2.31 fps Min Velocity: 1.04 fps Avg Flow: 1.495 mgd Peak Flow: 2.384 mgd Min Flow: 0.400 mgd V&A Project No. 13-0336 1-4 - 15 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 1-5 MH ID 9004: Poust Road and Naas Court in southbound lane of Poust Road near center of roadway Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 1-5 Data Summary Report 1-5 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 1-5 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 54 inches Baseline Flow: 5.432 mgd Peak Measured Flow: 14.566 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 9004: Poust Road and Naas Court in southbound lane of Poust Road near center of roadway Coordinates: 121.0449° W, 37.6542° N V&A Project No. 13-0336 1-5 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 1-5 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 4.37 inches Avg Period Flow: 5.532 MGal Peak Daily Flow: 7.860 MGal Min Daily Flow: 4.886 MGal V&A Project No. 13-0336 1-5 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 1-5 Flow Summary: 12/11/2014 to 1/19/2015 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.38 inches Avg Flow: 5.532 mgd Peak Flow: 14.566 mgd Min Flow: 1.943 mgd V&A Project No. 13-0336 1-5 - 4 Appendix A DRAFT Site removed mid-study Last data, January 14 ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 1-5 Flow Summary: 1/20/2015 to 3/1/2015 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.26 inches Avg Flow: mgd Peak Flow: mgd Min Flow: mgd V&A Project No. 13-0336 1-5 - 5 Appendix A DRAFT Meter was not installed for this time period. This page left intensionally blank. ---PAGE BREAK--- SITE 1-5 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 5.43 mgd Baseline Flow: V&A Project No. 13-0336 1-5 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 1-5 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 31.9 Peak d/D Ratio: 0.59 Pipe Diameter: 54 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 10 20 30 40 50 60 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 40.5 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 10 20 30 40 50 60 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 1-5 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 1-5 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.77 inches Event 1 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.77 inches) 14.57 27.59 Peak Flow: PF: Peak Level: mgd in 2.68 d/D Ratio: 0.51 Capacity 7.69 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 4,939,000 V&A Project No. 13-0336 1.5 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 1-5 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 1.00 inches Event 2 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 1.00 inches) 8.91 20.62 Peak Flow: PF: Peak Level: mgd in 1.64 d/D Ratio: 0.38 Capacity 2.73 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 1,013,000 V&A Project No. 13-0336 1.5 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 1-5 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 50 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.78 inches Avg Level: 17.08 in. Peak Level: 27.59 in. Min Level: 9.74 in. Avg Velocity: 2.36 fps Peak Velocity: 3.77 fps Min Velocity: 1.23 fps Avg Flow: 6.730 mgd Peak Flow: 14.566 mgd Min Flow: 2.362 mgd V&A Project No. 13-0336 1-5 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 1-5 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 50 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.53 inches Avg Level: 15.49 in. Peak Level: 31.85 in. Min Level: 9.02 in. Avg Velocity: 2.29 fps Peak Velocity: 3.31 fps Min Velocity: 0.66 fps Avg Flow: 5.588 mgd Peak Flow: 9.302 mgd Min Flow: 2.410 mgd V&A Project No. 13-0336 1-5 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 1-5 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 50 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.05 inches Avg Level: 14.73 in. Peak Level: 20.97 in. Min Level: 8.74 in. Avg Velocity: 2.30 fps Peak Velocity: 3.35 fps Min Velocity: 1.09 fps Avg Flow: 5.271 mgd Peak Flow: 8.411 mgd Min Flow: 1.943 mgd V&A Project No. 13-0336 1-5 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 1-5 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 50 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 14.83 in. Peak Level: 21.53 in. Min Level: 8.64 in. Avg Velocity: 2.30 fps Peak Velocity: 3.22 fps Min Velocity: 1.12 fps Avg Flow: 5.296 mgd Peak Flow: 8.168 mgd Min Flow: 2.266 mgd V&A Project No. 13-0336 1-5 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 1-5 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 50 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 15.14 in. Peak Level: 21.08 in. Min Level: 9.09 in. Avg Velocity: 2.24 fps Peak Velocity: 3.15 fps Min Velocity: 1.05 fps Avg Flow: 5.285 mgd Peak Flow: 8.642 mgd Min Flow: 2.377 mgd V&A Project No. 13-0336 1-5 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 1-5 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 50 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 15.80 in. Peak Level: 21.38 in. Min Level: 9.54 in. Avg Velocity: 2.22 fps Peak Velocity: 3.04 fps Min Velocity: 1.23 fps Avg Flow: 5.538 mgd Peak Flow: 8.217 mgd Min Flow: 2.438 mgd V&A Project No. 13-0336 1-5 - 15 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 2-1 MH ID 064091501: North of Hancock Street and Donald Street in southbound lane of Hancock Street Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 2-1 Data Summary Report 2-1 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 2-1 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 42.75 inches Baseline Flow: 3.560 mgd Peak Measured Flow: 6.544 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 064091501: North of Hancock Street and Donald Street in southbound lane of Hancock Street Coordinates: 121.0209° W, 37.6119° N V&A Project No. 13-0336 2-1 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 2-1 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 1.00 2.00 3.00 4.00 5.00 6.00 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 1.00 2.00 3.00 4.00 5.00 6.00 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 1.00 2.00 3.00 4.00 5.00 6.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.54 inches Avg Period Flow: 3.596 MGal Peak Daily Flow: 4.921 MGal Min Daily Flow: 3.455 MGal V&A Project No. 13-0336 2-1 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 2-1 Flow Summary: 12/11/2014 to 1/19/2015 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.31 inches Avg Flow: 3.628 mgd Peak Flow: 6.544 mgd Min Flow: 2.316 mgd V&A Project No. 13-0336 2-1 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 2-1 Flow Summary: 1/20/2015 to 3/1/2015 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.23 inches Avg Flow: 3.566 mgd Peak Flow: 6.055 mgd Min Flow: 2.328 mgd V&A Project No. 13-0336 2-1 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 2-1 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 3.56 mgd Baseline Flow: V&A Project No. 13-0336 2-1 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 2-1 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 7.71 Peak d/D Ratio: 0.18 Pipe Diameter: 42.8 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 5 10 15 20 25 30 35 40 45 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 32.0 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 5 10 15 20 25 30 35 40 45 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 2-1 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 2-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.71 inches Event 1 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.71 inches) 6.54 7.71 Peak Flow: PF: Peak Level: mgd in 1.84 d/D Ratio: 0.18 Capacity 3.63 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 2,284,000 V&A Project No. 13-0336 2.1 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 2-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 1.01 inches Event 2 0.00 1.00 2.00 3.00 4.00 5.00 6.00 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 1.01 inches) 5.34 7.21 Peak Flow: PF: Peak Level: mgd in 1.50 d/D Ratio: 0.17 Capacity 1.51 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 972,000 V&A Project No. 13-0336 2.1 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 2-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.73 inches Event 3 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.73 inches) 6.06 7.47 Peak Flow: PF: Peak Level: mgd in 1.70 d/D Ratio: 0.17 Capacity 2.36 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 363,000 V&A Project No. 13-0336 2.1 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 2-1 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0 2 4 6 8 10 12 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.72 inches Avg Level: 6.53 in. Peak Level: 7.71 in. Min Level: 5.74 in. Avg Velocity: 6.55 fps Peak Velocity: 8.52 fps Min Velocity: 4.86 fps Avg Flow: 4.148 mgd Peak Flow: 6.544 mgd Min Flow: 2.558 mgd V&A Project No. 13-0336 2-1 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 2-1 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0 2 4 6 8 10 12 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.52 inches Avg Level: 6.45 in. Peak Level: 7.21 in. Min Level: 5.80 in. Avg Velocity: 6.03 fps Peak Velocity: 7.45 fps Min Velocity: 4.77 fps Avg Flow: 3.712 mgd Peak Flow: 5.338 mgd Min Flow: 2.514 mgd V&A Project No. 13-0336 2-1 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 2-1 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0 2 4 6 8 10 12 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.05 inches Avg Level: 6.27 in. Peak Level: 6.71 in. Min Level: 5.62 in. Avg Velocity: 6.03 fps Peak Velocity: 7.07 fps Min Velocity: 4.47 fps Avg Flow: 3.559 mgd Peak Flow: 4.511 mgd Min Flow: 2.326 mgd V&A Project No. 13-0336 2-1 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 2-1 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0 2 4 6 8 10 12 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 6.24 in. Peak Level: 6.60 in. Min Level: 5.74 in. Avg Velocity: 6.00 fps Peak Velocity: 6.91 fps Min Velocity: 4.52 fps Avg Flow: 3.512 mgd Peak Flow: 4.270 mgd Min Flow: 2.370 mgd V&A Project No. 13-0336 2-1 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 2-1 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0 2 4 6 8 10 12 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 6.24 in. Peak Level: 6.59 in. Min Level: 5.64 in. Avg Velocity: 6.00 fps Peak Velocity: 6.91 fps Min Velocity: 4.56 fps Avg Flow: 3.517 mgd Peak Flow: 4.337 mgd Min Flow: 2.324 mgd V&A Project No. 13-0336 2-1 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 2-1 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0 2 4 6 8 10 12 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 6.27 in. Peak Level: 6.64 in. Min Level: 5.65 in. Avg Velocity: 6.03 fps Peak Velocity: 6.89 fps Min Velocity: 4.42 fps Avg Flow: 3.556 mgd Peak Flow: 4.349 mgd Min Flow: 2.316 mgd V&A Project No. 13-0336 2-1 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 2-1 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0 2 4 6 8 10 12 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 6.26 in. Peak Level: 6.64 in. Min Level: 5.71 in. Avg Velocity: 6.09 fps Peak Velocity: 6.95 fps Min Velocity: 4.72 fps Avg Flow: 3.584 mgd Peak Flow: 4.328 mgd Min Flow: 2.454 mgd V&A Project No. 13-0336 2-1 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 2-1 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0 2 4 6 8 10 12 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 6.25 in. Peak Level: 6.75 in. Min Level: 5.67 in. Avg Velocity: 6.06 fps Peak Velocity: 7.01 fps Min Velocity: 4.70 fps Avg Flow: 3.558 mgd Peak Flow: 4.487 mgd Min Flow: 2.390 mgd V&A Project No. 13-0336 2-1 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 2-1 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0 2 4 6 8 10 12 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.04 inches Avg Level: 6.29 in. Peak Level: 7.47 in. Min Level: 5.69 in. Avg Velocity: 6.09 fps Peak Velocity: 8.01 fps Min Velocity: 4.54 fps Avg Flow: 3.615 mgd Peak Flow: 6.055 mgd Min Flow: 2.402 mgd V&A Project No. 13-0336 2-1 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 2-1 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0 2 4 6 8 10 12 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 6.27 in. Peak Level: 6.65 in. Min Level: 5.70 in. Avg Velocity: 6.02 fps Peak Velocity: 6.97 fps Min Velocity: 4.41 fps Avg Flow: 3.555 mgd Peak Flow: 4.452 mgd Min Flow: 2.328 mgd V&A Project No. 13-0336 2-1 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 2-1 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0 2 4 6 8 10 12 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.16 inches Avg Level: 6.26 in. Peak Level: 6.73 in. Min Level: 5.72 in. Avg Velocity: 6.02 fps Peak Velocity: 6.90 fps Min Velocity: 4.58 fps Avg Flow: 3.547 mgd Peak Flow: 4.355 mgd Min Flow: 2.369 mgd V&A Project No. 13-0336 2-1 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 2-1 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0 2 4 6 8 10 12 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 6.24 in. Peak Level: 6.62 in. Min Level: 5.66 in. Avg Velocity: 6.02 fps Peak Velocity: 6.95 fps Min Velocity: 4.44 fps Avg Flow: 3.531 mgd Peak Flow: 4.343 mgd Min Flow: 2.352 mgd V&A Project No. 13-0336 2-1 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 2-2 MH ID 303091013: N. Emerald Avenue and Elm Avenue in center of intersection Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 2-2 Data Summary Report 2-2 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 2-2 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 31.5 inches Baseline Flow: 2.768 mgd Peak Measured Flow: 10.063 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 303091013: N. Emerald Avenue and Elm Avenue in center of intersection Coordinates: 121.0211° W, 37.6432° N V&A Project No. 13-0336 2-2 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 2-2 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 1.00 2.00 3.00 4.00 5.00 6.00 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 1.00 2.00 3.00 4.00 5.00 6.00 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 1.00 2.00 3.00 4.00 5.00 6.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.53 inches Avg Period Flow: 2.862 MGal Peak Daily Flow: 4.928 MGal Min Daily Flow: 2.526 MGal V&A Project No. 13-0336 2-2 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 2-2 Flow Summary: 12/11/2014 to 1/19/2015 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.31 inches Avg Flow: 2.920 mgd Peak Flow: 10.063 mgd Min Flow: 1.027 mgd V&A Project No. 13-0336 2-2 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 2-2 Flow Summary: 1/20/2015 to 3/1/2015 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.22 inches Avg Flow: 2.804 mgd Peak Flow: 8.311 mgd Min Flow: 1.085 mgd V&A Project No. 13-0336 2-2 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 2-2 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 2.77 mgd Baseline Flow: V&A Project No. 13-0336 2-2 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 2-2 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Surcharged 27.4 inches over crown Peak Measured Level: 58.9 Peak d/D Ratio: 1.87 Pipe Diameter: 31.5 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 10 20 30 40 50 60 70 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 23.6 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 10 20 30 40 50 60 70 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 2-2 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 2-2 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.72 inches Event 1 0.00 2.00 4.00 6.00 8.00 10.00 12.00 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.72 inches) 10.06 58.93 Peak Flow: PF: Peak Level: mgd in 3.64 d/D Ratio: 1.87 Capacity 7.35 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 4,534,000 V&A Project No. 13-0336 2.2 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 2-2 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 1.00 inches Event 2 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 1.00 inches) 6.32 24.78 Peak Flow: PF: Peak Level: mgd in 2.28 d/D Ratio: 0.79 Capacity 3.36 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 2,032,000 V&A Project No. 13-0336 2.2 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 2-2 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.72 inches Event 3 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.72 inches) 8.31 27.05 Peak Flow: PF: Peak Level: mgd in 3.00 d/D Ratio: 0.86 Capacity 4.99 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 661,000 V&A Project No. 13-0336 2.2 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 2-2 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 10 20 30 40 50 60 70 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.73 inches Avg Level: 20.79 in. Peak Level: 58.93 in. Min Level: 13.21 in. Avg Velocity: 1.65 fps Peak Velocity: 2.88 fps Min Velocity: 0.92 fps Avg Flow: 3.790 mgd Peak Flow: 10.063 mgd Min Flow: 1.324 mgd V&A Project No. 13-0336 2-2 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 2-2 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.52 inches Avg Level: 17.39 in. Peak Level: 24.78 in. Min Level: 13.20 in. Avg Velocity: 1.53 fps Peak Velocity: 2.30 fps Min Velocity: 0.84 fps Avg Flow: 3.093 mgd Peak Flow: 6.322 mgd Min Flow: 1.313 mgd V&A Project No. 13-0336 2-2 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 2-2 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.05 inches Avg Level: 16.95 in. Peak Level: 19.21 in. Min Level: 13.83 in. Avg Velocity: 1.42 fps Peak Velocity: 1.94 fps Min Velocity: 0.83 fps Avg Flow: 2.775 mgd Peak Flow: 4.291 mgd Min Flow: 1.282 mgd V&A Project No. 13-0336 2-2 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 2-2 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 16.87 in. Peak Level: 19.93 in. Min Level: 13.84 in. Avg Velocity: 1.40 fps Peak Velocity: 1.98 fps Min Velocity: 0.88 fps Avg Flow: 2.707 mgd Peak Flow: 4.627 mgd Min Flow: 1.357 mgd V&A Project No. 13-0336 2-2 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 2-2 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 16.75 in. Peak Level: 19.28 in. Min Level: 12.96 in. Avg Velocity: 1.43 fps Peak Velocity: 1.88 fps Min Velocity: 0.72 fps Avg Flow: 2.752 mgd Peak Flow: 4.204 mgd Min Flow: 1.027 mgd V&A Project No. 13-0336 2-2 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 2-2 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 16.69 in. Peak Level: 20.04 in. Min Level: 13.01 in. Avg Velocity: 1.46 fps Peak Velocity: 1.94 fps Min Velocity: 0.82 fps Avg Flow: 2.790 mgd Peak Flow: 4.338 mgd Min Flow: 1.189 mgd V&A Project No. 13-0336 2-2 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 2-2 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 16.68 in. Peak Level: 20.08 in. Min Level: 13.24 in. Avg Velocity: 1.46 fps Peak Velocity: 1.94 fps Min Velocity: 0.80 fps Avg Flow: 2.800 mgd Peak Flow: 4.412 mgd Min Flow: 1.144 mgd V&A Project No. 13-0336 2-2 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 2-2 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 16.68 in. Peak Level: 19.88 in. Min Level: 12.85 in. Avg Velocity: 1.45 fps Peak Velocity: 1.92 fps Min Velocity: 0.83 fps Avg Flow: 2.769 mgd Peak Flow: 4.403 mgd Min Flow: 1.113 mgd V&A Project No. 13-0336 2-2 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 2-2 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.03 inches Avg Level: 16.90 in. Peak Level: 27.05 in. Min Level: 12.86 in. Avg Velocity: 1.48 fps Peak Velocity: 2.60 fps Min Velocity: 0.86 fps Avg Flow: 2.896 mgd Peak Flow: 8.311 mgd Min Flow: 1.209 mgd V&A Project No. 13-0336 2-2 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 2-2 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 16.75 in. Peak Level: 19.91 in. Min Level: 13.02 in. Avg Velocity: 1.46 fps Peak Velocity: 1.90 fps Min Velocity: 0.90 fps Avg Flow: 2.812 mgd Peak Flow: 4.241 mgd Min Flow: 1.279 mgd V&A Project No. 13-0336 2-2 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 2-2 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.15 inches Avg Level: 16.73 in. Peak Level: 19.88 in. Min Level: 13.03 in. Avg Velocity: 1.46 fps Peak Velocity: 1.95 fps Min Velocity: 0.78 fps Avg Flow: 2.801 mgd Peak Flow: 4.238 mgd Min Flow: 1.085 mgd V&A Project No. 13-0336 2-2 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 2-2 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 16.63 in. Peak Level: 20.02 in. Min Level: 13.02 in. Avg Velocity: 1.44 fps Peak Velocity: 1.93 fps Min Velocity: 0.80 fps Avg Flow: 2.751 mgd Peak Flow: 4.525 mgd Min Flow: 1.135 mgd V&A Project No. 13-0336 2-2 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 2-3 MH ID 193091503: North of Woodland Avenue/Coldwell Avenue and N. 9th Street in Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 2-3 Data Summary Report 2-3 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 2-3 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 18.5 inches Baseline Flow: 0.571 mgd Peak Measured Flow: 1.604 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 193091503: North of Woodland Avenue/Coldwell Avenue and N. 9th Street in northbound lane of N. 9th Street Coordinates: 121.0189° W, 37.6542° N V&A Project No. 13-0336 2-3 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 2-3 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.51 inches Avg Period Flow: 0.574 MGal Peak Daily Flow: 0.949 MGal Min Daily Flow: 0.159 MGal V&A Project No. 13-0336 2-3 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 2-3 Flow Summary: 12/11/2014 to 1/19/2015 0.00 0.50 1.00 1.50 2.00 2.50 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.39 inches Avg Flow: 0.573 mgd Peak Flow: 1.604 mgd Min Flow: 0.009 mgd V&A Project No. 13-0336 2-3 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 2-3 Flow Summary: 1/20/2015 to 3/1/2015 0.00 0.50 1.00 1.50 2.00 2.50 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.12 inches Avg Flow: 0.575 mgd Peak Flow: 1.254 mgd Min Flow: 0.010 mgd V&A Project No. 13-0336 2-3 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 2-3 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 0.57 mgd Baseline Flow: V&A Project No. 13-0336 2-3 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 2-3 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Surcharged 36.9 inches over crown Peak Measured Level: 55.4 Peak d/D Ratio: 2.99 Pipe Diameter: 18.5 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 10 20 30 40 50 60 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 13.8 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 10 20 30 40 50 60 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 2-3 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 2-3 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.76 inches Event 1 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.76 inches) 1.60 55.37 Peak Flow: PF: Peak Level: mgd in 2.81 d/D Ratio: 2.99 Capacity 0.97 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 662,000 V&A Project No. 13-0336 2.3 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 2-3 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 1.01 inches Event 2 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 1.01 inches) 1.23 10.82 Peak Flow: PF: Peak Level: mgd in 2.15 d/D Ratio: 0.58 Capacity 0.60 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 415,000 V&A Project No. 13-0336 2.3 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 2-3 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.69 inches Event 3 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.69 inches) 1.25 18.15 Peak Flow: PF: Peak Level: mgd in 2.20 d/D Ratio: 0.98 Capacity 0.81 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 100,000 V&A Project No. 13-0336 2.3 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 2-3 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 10 20 30 40 50 60 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.77 inches Avg Level: 12.47 in. Peak Level: 55.37 in. Min Level: 5.31 in. Avg Velocity: 1.24 fps Peak Velocity: 1.85 fps Min Velocity: 0.55 fps Avg Flow: 0.783 mgd Peak Flow: 1.604 mgd Min Flow: 0.178 mgd V&A Project No. 13-0336 2-3 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 2-3 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.54 inches Avg Level: 8.41 in. Peak Level: 10.82 in. Min Level: 5.78 in. Avg Velocity: 1.23 fps Peak Velocity: 1.74 fps Min Velocity: 0.52 fps Avg Flow: 0.681 mgd Peak Flow: 1.228 mgd Min Flow: 0.176 mgd V&A Project No. 13-0336 2-3 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 2-3 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.05 inches Avg Level: 5.92 in. Peak Level: 9.00 in. Min Level: 0.66 in. Avg Velocity: 1.13 fps Peak Velocity: 1.66 fps Min Velocity: 0.38 fps Avg Flow: 0.400 mgd Peak Flow: 0.870 mgd Min Flow: 0.009 mgd V&A Project No. 13-0336 2-3 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 2-3 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 6.80 in. Peak Level: 8.74 in. Min Level: 4.78 in. Avg Velocity: 1.25 fps Peak Velocity: 1.77 fps Min Velocity: 0.56 fps Avg Flow: 0.518 mgd Peak Flow: 0.920 mgd Min Flow: 0.169 mgd V&A Project No. 13-0336 2-3 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 2-3 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 7.05 in. Peak Level: 9.02 in. Min Level: 5.09 in. Avg Velocity: 1.29 fps Peak Velocity: 1.73 fps Min Velocity: 0.49 fps Avg Flow: 0.564 mgd Peak Flow: 0.972 mgd Min Flow: 0.140 mgd V&A Project No. 13-0336 2-3 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 2-3 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 7.06 in. Peak Level: 9.58 in. Min Level: 5.16 in. Avg Velocity: 1.32 fps Peak Velocity: 1.85 fps Min Velocity: 0.53 fps Avg Flow: 0.578 mgd Peak Flow: 1.007 mgd Min Flow: 0.150 mgd V&A Project No. 13-0336 2-3 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 2-3 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 7.07 in. Peak Level: 8.92 in. Min Level: 5.14 in. Avg Velocity: 1.32 fps Peak Velocity: 1.76 fps Min Velocity: 0.53 fps Avg Flow: 0.576 mgd Peak Flow: 0.931 mgd Min Flow: 0.147 mgd V&A Project No. 13-0336 2-3 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 2-3 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 7.07 in. Peak Level: 9.12 in. Min Level: 5.14 in. Avg Velocity: 1.31 fps Peak Velocity: 1.75 fps Min Velocity: 0.64 fps Avg Flow: 0.571 mgd Peak Flow: 0.994 mgd Min Flow: 0.177 mgd V&A Project No. 13-0336 2-3 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 2-3 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.96 inches Avg Level: 7.30 in. Peak Level: 18.15 in. Min Level: 4.19 in. Avg Velocity: 1.25 fps Peak Velocity: 1.71 fps Min Velocity: 0.02 fps Avg Flow: 0.568 mgd Peak Flow: 1.254 mgd Min Flow: 0.010 mgd V&A Project No. 13-0336 2-3 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 2-3 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 7.60 in. Peak Level: 10.62 in. Min Level: 5.26 in. Avg Velocity: 1.23 fps Peak Velocity: 1.70 fps Min Velocity: 0.15 fps Avg Flow: 0.596 mgd Peak Flow: 1.197 mgd Min Flow: 0.060 mgd V&A Project No. 13-0336 2-3 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 2-3 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.12 inches Avg Level: 7.26 in. Peak Level: 10.77 in. Min Level: 5.17 in. Avg Velocity: 1.29 fps Peak Velocity: 1.72 fps Min Velocity: 0.50 fps Avg Flow: 0.584 mgd Peak Flow: 1.094 mgd Min Flow: 0.154 mgd V&A Project No. 13-0336 2-3 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 2-3 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 7.21 in. Peak Level: 9.48 in. Min Level: 5.02 in. Avg Velocity: 1.23 fps Peak Velocity: 1.77 fps Min Velocity: 0.65 fps Avg Flow: 0.555 mgd Peak Flow: 0.966 mgd Min Flow: 0.187 mgd V&A Project No. 13-0336 2-3 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 2-4 MH ID 193091510: North of Kearney Avenue and Coldwell Avenue in northbound lane of Kearney Avenue Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 2-4 Data Summary Report 2-4 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 2-4 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 30 inches Baseline Flow: 1.791 mgd Peak Measured Flow: 7.519 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 193091510: North of Kearney Avenue and Coldwell Avenue in northbound lane of Kearney Avenue Coordinates: 121.0167° W, 37.6540° N V&A Project No. 13-0336 2-4 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 2-4 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.55 inches Avg Period Flow: 1.842 MGal Peak Daily Flow: 3.599 MGal Min Daily Flow: 1.622 MGal V&A Project No. 13-0336 2-4 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 2-4 Flow Summary: 12/11/2014 to 1/19/2015 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.26 inches Avg Flow: 1.866 mgd Peak Flow: 7.519 mgd Min Flow: 0.682 mgd V&A Project No. 13-0336 2-4 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 2-4 Flow Summary: 1/20/2015 to 3/1/2015 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.30 inches Avg Flow: 1.819 mgd Peak Flow: 6.171 mgd Min Flow: 0.676 mgd V&A Project No. 13-0336 2-4 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 2-4 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.50 1.00 1.50 2.00 2.50 3.00 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 1.79 mgd Baseline Flow: V&A Project No. 13-0336 2-4 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 2-4 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Surcharged 41.4 inches over crown Peak Measured Level: 71.4 Peak d/D Ratio: 2.38 Pipe Diameter: 30 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 10 20 30 40 50 60 70 80 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 22.5 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 10 20 30 40 50 60 70 80 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 2-4 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 2-4 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.68 inches Event 1 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.68 inches) 7.52 71.42 Peak Flow: PF: Peak Level: mgd in 4.20 d/D Ratio: 2.38 Capacity 5.58 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 2,925,000 V&A Project No. 13-0336 2.4 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 2-4 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.99 inches Event 2 0.00 1.00 2.00 3.00 4.00 5.00 6.00 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 0.99 inches) 4.81 20.70 Peak Flow: PF: Peak Level: mgd in 2.69 d/D Ratio: 0.69 Capacity 2.70 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 1,356,000 V&A Project No. 13-0336 2.4 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 2-4 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.75 inches Event 3 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.75 inches) 6.17 33.02 Peak Flow: PF: Peak Level: mgd in 3.44 d/D Ratio: 1.10 Capacity 3.93 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 564,000 V&A Project No. 13-0336 2.4 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 2-4 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 10 20 30 40 50 60 70 80 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.69 inches Avg Level: 18.04 in. Peak Level: 71.42 in. Min Level: 8.68 in. Avg Velocity: 1.49 fps Peak Velocity: 2.37 fps Min Velocity: 0.81 fps Avg Flow: 2.443 mgd Peak Flow: 7.519 mgd Min Flow: 0.682 mgd V&A Project No. 13-0336 2-4 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 2-4 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.49 inches Avg Level: 12.88 in. Peak Level: 20.70 in. Min Level: 8.81 in. Avg Velocity: 1.49 fps Peak Velocity: 2.06 fps Min Velocity: 0.93 fps Avg Flow: 2.009 mgd Peak Flow: 4.811 mgd Min Flow: 0.781 mgd V&A Project No. 13-0336 2-4 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 2-4 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.05 inches Avg Level: 11.77 in. Peak Level: 14.65 in. Min Level: 8.52 in. Avg Velocity: 1.43 fps Peak Velocity: 1.85 fps Min Velocity: 0.93 fps Avg Flow: 1.716 mgd Peak Flow: 2.782 mgd Min Flow: 0.708 mgd V&A Project No. 13-0336 2-4 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 2-4 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 11.75 in. Peak Level: 14.46 in. Min Level: 8.61 in. Avg Velocity: 1.44 fps Peak Velocity: 1.80 fps Min Velocity: 0.94 fps Avg Flow: 1.720 mgd Peak Flow: 2.696 mgd Min Flow: 0.727 mgd V&A Project No. 13-0336 2-4 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 2-4 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 12.09 in. Peak Level: 14.69 in. Min Level: 8.89 in. Avg Velocity: 1.44 fps Peak Velocity: 1.85 fps Min Velocity: 0.96 fps Avg Flow: 1.779 mgd Peak Flow: 2.863 mgd Min Flow: 0.778 mgd V&A Project No. 13-0336 2-4 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 2-4 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 12.01 in. Peak Level: 14.65 in. Min Level: 8.62 in. Avg Velocity: 1.47 fps Peak Velocity: 1.84 fps Min Velocity: 0.93 fps Avg Flow: 1.798 mgd Peak Flow: 2.833 mgd Min Flow: 0.701 mgd V&A Project No. 13-0336 2-4 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 2-4 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.04 inches Avg Level: 12.17 in. Peak Level: 15.34 in. Min Level: 8.59 in. Avg Velocity: 1.43 fps Peak Velocity: 1.79 fps Min Velocity: 0.97 fps Avg Flow: 1.788 mgd Peak Flow: 2.724 mgd Min Flow: 0.760 mgd V&A Project No. 13-0336 2-4 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 2-4 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 12.25 in. Peak Level: 15.12 in. Min Level: 8.56 in. Avg Velocity: 1.44 fps Peak Velocity: 1.78 fps Min Velocity: 0.94 fps Avg Flow: 1.804 mgd Peak Flow: 2.778 mgd Min Flow: 0.718 mgd V&A Project No. 13-0336 2-4 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 2-4 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.08 inches Avg Level: 12.69 in. Peak Level: 33.02 in. Min Level: 8.37 in. Avg Velocity: 1.46 fps Peak Velocity: 2.31 fps Min Velocity: 0.93 fps Avg Flow: 1.905 mgd Peak Flow: 6.171 mgd Min Flow: 0.768 mgd V&A Project No. 13-0336 2-4 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 2-4 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 12.24 in. Peak Level: 15.28 in. Min Level: 8.72 in. Avg Velocity: 1.44 fps Peak Velocity: 1.80 fps Min Velocity: 0.94 fps Avg Flow: 1.809 mgd Peak Flow: 2.834 mgd Min Flow: 0.765 mgd V&A Project No. 13-0336 2-4 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 2-4 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.18 inches Avg Level: 12.22 in. Peak Level: 15.44 in. Min Level: 8.70 in. Avg Velocity: 1.43 fps Peak Velocity: 1.79 fps Min Velocity: 0.84 fps Avg Flow: 1.795 mgd Peak Flow: 2.762 mgd Min Flow: 0.676 mgd V&A Project No. 13-0336 2-4 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 2-4 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 12.24 in. Peak Level: 15.28 in. Min Level: 8.56 in. Avg Velocity: 1.44 fps Peak Velocity: 1.76 fps Min Velocity: 0.87 fps Avg Flow: 1.800 mgd Peak Flow: 2.749 mgd Min Flow: 0.699 mgd V&A Project No. 13-0336 2-4 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 2-5 MH ID 203090101: Tully Road and W. Granger Avenue Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 2-5 Data Summary Report 2-5 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 2-5 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 21 inches Baseline Flow: 0.689 mgd Peak Measured Flow: 2.705 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 203090101: Tully Road and W. Granger Avenue Coordinates: 121.0122° W, 37.6676° N V&A Project No. 13-0336 2-5 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 2-5 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.60 inches Avg Period Flow: 0.721 MGal Peak Daily Flow: 1.212 MGal Min Daily Flow: 0.626 MGal V&A Project No. 13-0336 2-5 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 2-5 Flow Summary: 12/11/2014 to 1/19/2015 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.26 inches Avg Flow: 0.737 mgd Peak Flow: 2.290 mgd Min Flow: 0.070 mgd V&A Project No. 13-0336 2-5 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 2-5 Flow Summary: 1/20/2015 to 3/1/2015 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.34 inches Avg Flow: 0.706 mgd Peak Flow: 2.705 mgd Min Flow: 0.095 mgd V&A Project No. 13-0336 2-5 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 2-5 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 0.69 mgd Baseline Flow: V&A Project No. 13-0336 2-5 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 2-5 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Surcharged 57.7 inches over crown Peak Measured Level: 78.7 Peak d/D Ratio: 3.75 Pipe Diameter: 21 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 10 20 30 40 50 60 70 80 90 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 15.7 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 10 20 30 40 50 60 70 80 90 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 2-5 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 2-5 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.69 inches Event 1 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.69 inches) 2.29 78.70 Peak Flow: PF: Peak Level: mgd in 3.32 d/D Ratio: 3.75 Capacity 2.00 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 947,000 V&A Project No. 13-0336 2.5 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 2-5 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.98 inches Event 2 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 0.98 inches) 1.72 15.01 Peak Flow: PF: Peak Level: mgd in 2.50 d/D Ratio: 0.71 Capacity 1.03 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 430,000 V&A Project No. 13-0336 2.5 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 2-5 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.77 inches Event 3 0.00 0.50 1.00 1.50 2.00 2.50 3.00 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.77 inches) 2.71 25.90 Peak Flow: PF: Peak Level: mgd in 3.92 d/D Ratio: 1.23 Capacity 1.86 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 359,000 V&A Project No. 13-0336 2.5 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 2-5 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 10 20 30 40 50 60 70 80 90 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.70 inches Avg Level: 15.34 in. Peak Level: 78.70 in. Min Level: 6.79 in. Avg Velocity: 1.14 fps Peak Velocity: 2.05 fps Min Velocity: 0.41 fps Avg Flow: 0.944 mgd Peak Flow: 2.290 mgd Min Flow: 0.198 mgd V&A Project No. 13-0336 2-5 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 2-5 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.49 inches Avg Level: 9.46 in. Peak Level: 15.01 in. Min Level: 6.59 in. Avg Velocity: 1.20 fps Peak Velocity: 1.62 fps Min Velocity: 0.28 fps Avg Flow: 0.837 mgd Peak Flow: 1.724 mgd Min Flow: 0.191 mgd V&A Project No. 13-0336 2-5 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 2-5 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.05 inches Avg Level: 8.70 in. Peak Level: 11.08 in. Min Level: 6.45 in. Avg Velocity: 1.06 fps Peak Velocity: 1.57 fps Min Velocity: 0.24 fps Avg Flow: 0.678 mgd Peak Flow: 1.180 mgd Min Flow: 0.111 mgd V&A Project No. 13-0336 2-5 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 2-5 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 8.66 in. Peak Level: 10.97 in. Min Level: 6.41 in. Avg Velocity: 1.06 fps Peak Velocity: 1.59 fps Min Velocity: 0.17 fps Avg Flow: 0.673 mgd Peak Flow: 1.232 mgd Min Flow: 0.070 mgd V&A Project No. 13-0336 2-5 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 2-5 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 8.72 in. Peak Level: 10.99 in. Min Level: 6.56 in. Avg Velocity: 1.07 fps Peak Velocity: 1.62 fps Min Velocity: 0.26 fps Avg Flow: 0.685 mgd Peak Flow: 1.271 mgd Min Flow: 0.109 mgd V&A Project No. 13-0336 2-5 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 2-5 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 8.75 in. Peak Level: 11.54 in. Min Level: 6.52 in. Avg Velocity: 1.08 fps Peak Velocity: 1.58 fps Min Velocity: 0.27 fps Avg Flow: 0.694 mgd Peak Flow: 1.289 mgd Min Flow: 0.113 mgd V&A Project No. 13-0336 2-5 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 2-5 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.04 inches Avg Level: 8.76 in. Peak Level: 11.35 in. Min Level: 6.60 in. Avg Velocity: 1.08 fps Peak Velocity: 1.57 fps Min Velocity: 0.28 fps Avg Flow: 0.690 mgd Peak Flow: 1.264 mgd Min Flow: 0.124 mgd V&A Project No. 13-0336 2-5 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 2-5 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 8.78 in. Peak Level: 11.56 in. Min Level: 6.68 in. Avg Velocity: 1.08 fps Peak Velocity: 1.54 fps Min Velocity: 0.25 fps Avg Flow: 0.696 mgd Peak Flow: 1.201 mgd Min Flow: 0.110 mgd V&A Project No. 13-0336 2-5 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 2-5 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.12 inches Avg Level: 9.18 in. Peak Level: 25.90 in. Min Level: 6.42 in. Avg Velocity: 1.10 fps Peak Velocity: 1.74 fps Min Velocity: 0.29 fps Avg Flow: 0.751 mgd Peak Flow: 2.705 mgd Min Flow: 0.123 mgd V&A Project No. 13-0336 2-5 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 2-5 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 8.80 in. Peak Level: 11.08 in. Min Level: 6.55 in. Avg Velocity: 1.09 fps Peak Velocity: 1.69 fps Min Velocity: 0.31 fps Avg Flow: 0.704 mgd Peak Flow: 1.373 mgd Min Flow: 0.143 mgd V&A Project No. 13-0336 2-5 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 2-5 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.18 inches Avg Level: 8.86 in. Peak Level: 13.09 in. Min Level: 6.64 in. Avg Velocity: 1.08 fps Peak Velocity: 1.53 fps Min Velocity: 0.30 fps Avg Flow: 0.705 mgd Peak Flow: 1.449 mgd Min Flow: 0.128 mgd V&A Project No. 13-0336 2-5 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 2-5 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 8.75 in. Peak Level: 11.44 in. Min Level: 6.70 in. Avg Velocity: 1.08 fps Peak Velocity: 1.61 fps Min Velocity: 0.22 fps Avg Flow: 0.693 mgd Peak Flow: 1.325 mgd Min Flow: 0.095 mgd V&A Project No. 13-0336 2-5 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 2-6 MH ID 183091012: Carver Road and Bay Meadows Drive in southbound lane of Carver Road Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 2-6 Data Summary Report 2-6 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 2-6 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 15 inches Baseline Flow: 0.132 mgd Peak Measured Flow: 0.762 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 183091012: Carver Road and Bay Meadows Drive in southbound lane of Carver Road Coordinates: 121.0221° W, 37.6733° N V&A Project No. 13-0336 2-6 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 2-6 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.39 inches Avg Period Flow: 0.160 MGal Peak Daily Flow: 0.378 MGal Min Daily Flow: 0.116 MGal V&A Project No. 13-0336 2-6 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 2-6 Flow Summary: 12/11/2014 to 1/19/2015 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.37 inches Avg Flow: 0.162 mgd Peak Flow: 0.762 mgd Min Flow: 0.005 mgd V&A Project No. 13-0336 2-6 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 2-6 Flow Summary: 1/20/2015 to 3/1/2015 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.16 inches Avg Flow: 0.156 mgd Peak Flow: 0.537 mgd Min Flow: 0.002 mgd V&A Project No. 13-0336 2-6 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 2-6 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 0.13 mgd Baseline Flow: V&A Project No. 13-0336 2-6 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 2-6 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 12.8 Peak d/D Ratio: 0.85 Pipe Diameter: 15 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 2 4 6 8 10 12 14 16 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 11.2 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 2 4 6 8 10 12 14 16 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 2-6 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 2-6 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.75 inches Event 1 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.75 inches) 0.72 12.76 Peak Flow: PF: Peak Level: mgd in 5.48 d/D Ratio: 0.85 Capacity 0.61 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 542,000 V&A Project No. 13-0336 2.6 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 2-6 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 1.01 inches Event 2 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 1.01 inches) 0.59 7.79 Peak Flow: PF: Peak Level: mgd in 4.47 d/D Ratio: 0.52 Capacity 0.40 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 329,000 V&A Project No. 13-0336 2.6 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 2-6 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.70 inches Event 3 0.00 0.10 0.20 0.30 0.40 0.50 0.60 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.70 inches) 0.52 9.48 Peak Flow: PF: Peak Level: mgd in 3.92 d/D Ratio: 0.63 Capacity 0.36 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 113,000 V&A Project No. 13-0336 2.6 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 2-6 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.76 inches Avg Level: 6.83 in. Peak Level: 12.76 in. Min Level: 2.14 in. Avg Velocity: 0.86 fps Peak Velocity: 1.83 fps Min Velocity: 0.02 fps Avg Flow: 0.311 mgd Peak Flow: 0.762 mgd Min Flow: 0.005 mgd V&A Project No. 13-0336 2-6 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 2-6 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.53 inches Avg Level: 4.46 in. Peak Level: 7.79 in. Min Level: 1.78 in. Avg Velocity: 0.96 fps Peak Velocity: 1.83 fps Min Velocity: 0.07 fps Avg Flow: 0.199 mgd Peak Flow: 0.590 mgd Min Flow: 0.006 mgd V&A Project No. 13-0336 2-6 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 2-6 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.05 inches Avg Level: 2.80 in. Peak Level: 5.47 in. Min Level: 1.09 in. Avg Velocity: 1.24 fps Peak Velocity: 1.98 fps Min Velocity: 0.39 fps Avg Flow: 0.130 mgd Peak Flow: 0.319 mgd Min Flow: 0.014 mgd V&A Project No. 13-0336 2-6 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 2-6 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 2.81 in. Peak Level: 4.47 in. Min Level: 1.06 in. Avg Velocity: 1.24 fps Peak Velocity: 1.93 fps Min Velocity: 0.82 fps Avg Flow: 0.131 mgd Peak Flow: 0.248 mgd Min Flow: 0.022 mgd V&A Project No. 13-0336 2-6 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 2-6 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 3.00 in. Peak Level: 7.04 in. Min Level: 1.08 in. Avg Velocity: 1.20 fps Peak Velocity: 1.86 fps Min Velocity: 0.71 fps Avg Flow: 0.140 mgd Peak Flow: 0.361 mgd Min Flow: 0.021 mgd V&A Project No. 13-0336 2-6 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 2-6 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 2.92 in. Peak Level: 4.25 in. Min Level: 0.84 in. Avg Velocity: 1.14 fps Peak Velocity: 1.81 fps Min Velocity: 0.59 fps Avg Flow: 0.128 mgd Peak Flow: 0.238 mgd Min Flow: 0.010 mgd V&A Project No. 13-0336 2-6 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 2-6 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 2.97 in. Peak Level: 6.57 in. Min Level: 1.18 in. Avg Velocity: 1.14 fps Peak Velocity: 1.69 fps Min Velocity: 0.71 fps Avg Flow: 0.132 mgd Peak Flow: 0.395 mgd Min Flow: 0.022 mgd V&A Project No. 13-0336 2-6 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 2-6 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 3.14 in. Peak Level: 7.36 in. Min Level: 0.96 in. Avg Velocity: 1.10 fps Peak Velocity: 1.76 fps Min Velocity: 0.30 fps Avg Flow: 0.138 mgd Peak Flow: 0.450 mgd Min Flow: 0.012 mgd V&A Project No. 13-0336 2-6 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 2-6 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.99 inches Avg Level: 3.80 in. Peak Level: 9.48 in. Min Level: 0.47 in. Avg Velocity: 1.02 fps Peak Velocity: 2.19 fps Min Velocity: 0.09 fps Avg Flow: 0.176 mgd Peak Flow: 0.537 mgd Min Flow: 0.002 mgd V&A Project No. 13-0336 2-6 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 2-6 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 3.85 in. Peak Level: 6.74 in. Min Level: 1.81 in. Avg Velocity: 1.16 fps Peak Velocity: 1.76 fps Min Velocity: 0.79 fps Avg Flow: 0.187 mgd Peak Flow: 0.400 mgd Min Flow: 0.049 mgd V&A Project No. 13-0336 2-6 - 20 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 3-1 MH ID 054091301: Sutter Avenue, south of Robertson Road Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 3-1 Data Summary Report 3-1 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 3-1 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 18 inches Baseline Flow: 1.262 mgd Peak Measured Flow: 3.514 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 054091301: Sutter Avenue, south of Robertson Road Coordinates: 121.0118° W, 37.6127° N V&A Project No. 13-0336 3-1 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 3-1 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.54 inches Avg Period Flow: 1.257 MGal Peak Daily Flow: 1.927 MGal Min Daily Flow: 1.009 MGal V&A Project No. 13-0336 3-1 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 3-1 Flow Summary: 12/11/2014 to 1/19/2015 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.25 inches Avg Flow: 1.249 mgd Peak Flow: 3.514 mgd Min Flow: 0.397 mgd V&A Project No. 13-0336 3-1 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 3-1 Flow Summary: 1/20/2015 to 3/1/2015 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.28 inches Avg Flow: 1.265 mgd Peak Flow: 2.545 mgd Min Flow: 0.503 mgd V&A Project No. 13-0336 3-1 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 3-1 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 1.26 mgd Baseline Flow: V&A Project No. 13-0336 3-1 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 3-1 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 16.2 Peak d/D Ratio: 0.90 Pipe Diameter: 18 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 2 4 6 8 10 12 14 16 18 20 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 13.5 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 2 4 6 8 10 12 14 16 18 20 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 3-1 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 3-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.67 inches Event 1 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.67 inches) 3.51 16.19 Peak Flow: PF: Peak Level: mgd in 2.78 d/D Ratio: 0.90 Capacity 2.05 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 1,281,000 V&A Project No. 13-0336 3.1 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 3-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 1.02 inches Event 2 0.00 0.50 1.00 1.50 2.00 2.50 3.00 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 1.02 inches) 2.59 12.78 Peak Flow: PF: Peak Level: mgd in 2.05 d/D Ratio: 0.71 Capacity 1.35 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 653,000 V&A Project No. 13-0336 3.1 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 3-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.76 inches Event 3 0.00 0.50 1.00 1.50 2.00 2.50 3.00 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.76 inches) 2.55 13.42 Peak Flow: PF: Peak Level: mgd in 2.02 d/D Ratio: 0.75 Capacity 1.10 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 204,000 V&A Project No. 13-0336 3.1 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 3-1 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.68 inches Avg Level: 9.20 in. Peak Level: 16.19 in. Min Level: 6.24 in. Avg Velocity: 2.58 fps Peak Velocity: 3.39 fps Min Velocity: 1.92 fps Avg Flow: 1.547 mgd Peak Flow: 3.514 mgd Min Flow: 0.727 mgd V&A Project No. 13-0336 3-1 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 3-1 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.51 inches Avg Level: 8.29 in. Peak Level: 12.78 in. Min Level: 5.95 in. Avg Velocity: 2.52 fps Peak Velocity: 2.99 fps Min Velocity: 1.93 fps Avg Flow: 1.312 mgd Peak Flow: 2.588 mgd Min Flow: 0.649 mgd V&A Project No. 13-0336 3-1 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 3-1 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.04 inches Avg Level: 7.58 in. Peak Level: 9.53 in. Min Level: 4.96 in. Avg Velocity: 2.44 fps Peak Velocity: 2.77 fps Min Velocity: 1.54 fps Avg Flow: 1.135 mgd Peak Flow: 1.699 mgd Min Flow: 0.397 mgd V&A Project No. 13-0336 3-1 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 3-1 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 7.63 in. Peak Level: 9.46 in. Min Level: 5.23 in. Avg Velocity: 2.46 fps Peak Velocity: 2.84 fps Min Velocity: 1.71 fps Avg Flow: 1.154 mgd Peak Flow: 1.654 mgd Min Flow: 0.472 mgd V&A Project No. 13-0336 3-1 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 3-1 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 7.57 in. Peak Level: 9.49 in. Min Level: 5.41 in. Avg Velocity: 2.48 fps Peak Velocity: 2.78 fps Min Velocity: 1.95 fps Avg Flow: 1.144 mgd Peak Flow: 1.696 mgd Min Flow: 0.573 mgd V&A Project No. 13-0336 3-1 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 3-1 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 8.51 in. Peak Level: 10.44 in. Min Level: 5.51 in. Avg Velocity: 2.44 fps Peak Velocity: 2.84 fps Min Velocity: 1.50 fps Avg Flow: 1.318 mgd Peak Flow: 1.818 mgd Min Flow: 0.444 mgd V&A Project No. 13-0336 3-1 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 3-1 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 8.43 in. Peak Level: 10.30 in. Min Level: 5.78 in. Avg Velocity: 2.42 fps Peak Velocity: 2.77 fps Min Velocity: 1.58 fps Avg Flow: 1.289 mgd Peak Flow: 1.806 mgd Min Flow: 0.503 mgd V&A Project No. 13-0336 3-1 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 3-1 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 8.52 in. Peak Level: 10.21 in. Min Level: 5.77 in. Avg Velocity: 2.38 fps Peak Velocity: 2.70 fps Min Velocity: 1.60 fps Avg Flow: 1.280 mgd Peak Flow: 1.740 mgd Min Flow: 0.504 mgd V&A Project No. 13-0336 3-1 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 3-1 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.06 inches Avg Level: 8.48 in. Peak Level: 13.42 in. Min Level: 6.22 in. Avg Velocity: 2.38 fps Peak Velocity: 2.89 fps Min Velocity: 1.93 fps Avg Flow: 1.273 mgd Peak Flow: 2.545 mgd Min Flow: 0.681 mgd V&A Project No. 13-0336 3-1 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 3-1 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 8.49 in. Peak Level: 10.25 in. Min Level: 6.31 in. Avg Velocity: 2.36 fps Peak Velocity: 2.74 fps Min Velocity: 1.58 fps Avg Flow: 1.267 mgd Peak Flow: 1.782 mgd Min Flow: 0.600 mgd V&A Project No. 13-0336 3-1 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 3-1 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.19 inches Avg Level: 8.46 in. Peak Level: 10.15 in. Min Level: 6.06 in. Avg Velocity: 2.35 fps Peak Velocity: 2.73 fps Min Velocity: 1.72 fps Avg Flow: 1.254 mgd Peak Flow: 1.721 mgd Min Flow: 0.609 mgd V&A Project No. 13-0336 3-1 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 3-1 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 8.41 in. Peak Level: 10.01 in. Min Level: 6.38 in. Avg Velocity: 2.33 fps Peak Velocity: 2.66 fps Min Velocity: 1.85 fps Avg Flow: 1.233 mgd Peak Flow: 1.653 mgd Min Flow: 0.723 mgd V&A Project No. 13-0336 3-1 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 4-1 MH ID 323090711: Just north of E Street and 6th Street in nouthbound lane of 6th Street Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 4-1 Data Summary Report 4-1 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 4-1 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 18 inches Baseline Flow: 0.036 mgd Peak Measured Flow: 0.298 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 323090711: Just north of E Street and 6th Street in nouthbound lane of 6th Street Coordinates: 120.9984° W, 37.6329° N V&A Project No. 13-0336 4-1 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 4-1 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 1.24 inches Avg Period Flow: 0.043 MGal Peak Daily Flow: 0.084 MGal Min Daily Flow: 0.024 MGal V&A Project No. 13-0336 4-1 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 4-1 Flow Summary: 12/11/2014 to 1/19/2015 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.25 inches Avg Flow: mgd Peak Flow: mgd Min Flow: mgd V&A Project No. 13-0336 4-1 - 4 Appendix A DRAFT Meter was not installed for this time period. This page left intensionally blank. ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 4-1 Flow Summary: 1/20/2015 to 3/1/2015 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.27 inches Avg Flow: 0.043 mgd Peak Flow: 0.298 mgd Min Flow: 0.002 mgd V&A Project No. 13-0336 4-1 - 5 Appendix A DRAFT New site established and installed mid-study. First day of data: February 5, 2015 ---PAGE BREAK--- SITE 4-1 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.02 0.04 0.06 0.08 0.10 0.12 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 0.04 mgd Baseline Flow: V&A Project No. 13-0336 4-1 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 4-1 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 5.63 Peak d/D Ratio: 0.31 Pipe Diameter: 18 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 2 4 6 8 10 12 14 16 18 20 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 13.5 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 2 4 6 8 10 12 14 16 18 20 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 4-1 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 4-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.76 inches Event 3 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.76 inches) 0.30 5.63 Peak Flow: PF: Peak Level: mgd in 8.35 d/D Ratio: 0.31 Capacity 0.27 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 43,000 V&A Project No. 13-0336 4.1 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 4-1 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Velocity (fps) Vel 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.05 inches Avg Level: 2.34 in. Peak Level: 5.63 in. Min Level: 1.49 in. Avg Velocity: 0.49 fps Peak Velocity: 1.30 fps Min Velocity: 0.04 fps Avg Flow: 0.054 mgd Peak Flow: 0.298 mgd Min Flow: 0.002 mgd V&A Project No. 13-0336 4-1 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 4-1 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Velocity (fps) Vel 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 2.61 in. Peak Level: 3.47 in. Min Level: 1.59 in. Avg Velocity: 0.36 fps Peak Velocity: 0.77 fps Min Velocity: 0.04 fps Avg Flow: 0.039 mgd Peak Flow: 0.107 mgd Min Flow: 0.003 mgd V&A Project No. 13-0336 4-1 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 4-1 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Velocity (fps) Vel 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.19 inches Avg Level: 2.25 in. Peak Level: 3.49 in. Min Level: 1.49 in. Avg Velocity: 0.37 fps Peak Velocity: 1.12 fps Min Velocity: 0.06 fps Avg Flow: 0.036 mgd Peak Flow: 0.165 mgd Min Flow: 0.003 mgd V&A Project No. 13-0336 4-1 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 4-1 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Velocity (fps) Vel 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 2.38 in. Peak Level: 3.72 in. Min Level: 1.59 in. Avg Velocity: 0.48 fps Peak Velocity: 1.22 fps Min Velocity: 0.05 fps Avg Flow: 0.050 mgd Peak Flow: 0.203 mgd Min Flow: 0.003 mgd V&A Project No. 13-0336 4-1 - 12 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 4-2 MH ID 323090810: Just north of N. 7th Street and C Street in northbound lane, near centerline of roadway Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 4-2 Data Summary Report 4-2 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 4-2 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 33 inches Baseline Flow: 0.822 mgd Peak Measured Flow: 5.257 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 323090810: Just north of N. 7th Street and C Street in northbound lane, near centerline of roadway Coordinates: 120.9952° W, 37.6317° N V&A Project No. 13-0336 4-2 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 4-2 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/13 12/15 12/17 12/19 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/13 12/15 12/17 12/19 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.43 inches Avg Period Flow: 0.896 MGal Peak Daily Flow: 2.123 MGal Min Daily Flow: 0.531 MGal V&A Project No. 13-0336 4-2 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 4-2 Flow Summary: 12/11/2014 to 1/19/2015 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.16 inches Avg Flow: 1.012 mgd Peak Flow: 5.257 mgd Min Flow: 0.134 mgd V&A Project No. 13-0336 4-2 - 4 Appendix A DRAFT Meter Failed From: 12/21/14 to 1/1/15 ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 4-2 Flow Summary: 1/20/2015 to 3/1/2015 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.31 inches Avg Flow: 0.817 mgd Peak Flow: 2.350 mgd Min Flow: 0.013 mgd V&A Project No. 13-0336 4-2 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 4-2 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 0.82 mgd Baseline Flow: V&A Project No. 13-0336 4-2 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 4-2 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 19.7 Peak d/D Ratio: 0.60 Pipe Diameter: 33 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 5 10 15 20 25 30 35 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 24.7 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 5 10 15 20 25 30 35 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 4-2 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 4-2 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.62 inches Event 1 0.00 1.00 2.00 3.00 4.00 5.00 6.00 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.62 inches) 5.26 19.69 Peak Flow: PF: Peak Level: mgd in 6.40 d/D Ratio: 0.60 Capacity 4.22 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 2,273,000 V&A Project No. 13-0336 4.2 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 4-2 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.99 inches Event 2 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 0.99 inches) 3.12 14.03 Peak Flow: PF: Peak Level: mgd in 3.79 d/D Ratio: 0.43 Capacity 2.12 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 1,348,000 V&A Project No. 13-0336 4.2 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 4-2 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.74 inches Event 3 0.00 0.50 1.00 1.50 2.00 2.50 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.74 inches) 2.35 11.75 Peak Flow: PF: Peak Level: mgd in 2.86 d/D Ratio: 0.36 Capacity 1.37 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 248,000 V&A Project No. 13-0336 4.2 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 4-2 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.62 inches Avg Level: 9.00 in. Peak Level: 19.69 in. Min Level: 4.54 in. Avg Velocity: 1.62 fps Peak Velocity: 2.24 fps Min Velocity: 1.07 fps Avg Flow: 1.520 mgd Peak Flow: 5.257 mgd Min Flow: 0.355 mgd V&A Project No. 13-0336 4-2 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 4-2 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.47 inches Avg Level: 8.26 in. Peak Level: 14.03 in. Min Level: 4.18 in. Avg Velocity: 1.60 fps Peak Velocity: 2.13 fps Min Velocity: 0.91 fps Avg Flow: 1.254 mgd Peak Flow: 3.119 mgd Min Flow: 0.268 mgd V&A Project No. 13-0336 4-2 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 4-2 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.04 inches Avg Level: in. Peak Level: in. Min Level: in. Avg Velocity: fps Peak Velocity: fps Min Velocity: fps Avg Flow: mgd Peak Flow: mgd Min Flow: mgd V&A Project No. 13-0336 4-2 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 4-2 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 6.82 in. Peak Level: 9.01 in. Min Level: 3.51 in. Avg Velocity: 1.40 fps Peak Velocity: 1.73 fps Min Velocity: 0.78 fps Avg Flow: 0.848 mgd Peak Flow: 1.444 mgd Min Flow: 0.171 mgd V&A Project No. 13-0336 4-2 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 4-2 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 6.78 in. Peak Level: 8.39 in. Min Level: 3.94 in. Avg Velocity: 1.40 fps Peak Velocity: 1.72 fps Min Velocity: 0.97 fps Avg Flow: 0.815 mgd Peak Flow: 1.275 mgd Min Flow: 0.251 mgd V&A Project No. 13-0336 4-2 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 4-2 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 6.77 in. Peak Level: 8.40 in. Min Level: 3.04 in. Avg Velocity: 1.38 fps Peak Velocity: 1.66 fps Min Velocity: 0.72 fps Avg Flow: 0.813 mgd Peak Flow: 1.242 mgd Min Flow: 0.134 mgd V&A Project No. 13-0336 4-2 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 4-2 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 6.79 in. Peak Level: 9.64 in. Min Level: 2.90 in. Avg Velocity: 1.39 fps Peak Velocity: 1.79 fps Min Velocity: 0.76 fps Avg Flow: 0.817 mgd Peak Flow: 1.674 mgd Min Flow: 0.126 mgd V&A Project No. 13-0336 4-2 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 4-2 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 6.90 in. Peak Level: 8.77 in. Min Level: 4.03 in. Avg Velocity: 1.42 fps Peak Velocity: 1.71 fps Min Velocity: 0.72 fps Avg Flow: 0.849 mgd Peak Flow: 1.374 mgd Min Flow: 0.240 mgd V&A Project No. 13-0336 4-2 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 4-2 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.07 inches Avg Level: 7.26 in. Peak Level: 11.75 in. Min Level: 3.32 in. Avg Velocity: 1.45 fps Peak Velocity: 1.95 fps Min Velocity: 0.83 fps Avg Flow: 0.949 mgd Peak Flow: 2.350 mgd Min Flow: 0.168 mgd V&A Project No. 13-0336 4-2 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 4-2 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 6.69 in. Peak Level: 8.31 in. Min Level: 2.11 in. Avg Velocity: 1.38 fps Peak Velocity: 1.63 fps Min Velocity: 0.72 fps Avg Flow: 0.784 mgd Peak Flow: 1.212 mgd Min Flow: 0.076 mgd V&A Project No. 13-0336 4-2 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 4-2 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.20 inches Avg Level: 6.17 in. Peak Level: 8.95 in. Min Level: 0.71 in. Avg Velocity: 1.29 fps Peak Velocity: 1.75 fps Min Velocity: 0.59 fps Avg Flow: 0.670 mgd Peak Flow: 1.473 mgd Min Flow: 0.013 mgd V&A Project No. 13-0336 4-2 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 4-2 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 6.89 in. Peak Level: 8.58 in. Min Level: 4.74 in. Avg Velocity: 1.41 fps Peak Velocity: 1.68 fps Min Velocity: 1.06 fps Avg Flow: 0.831 mgd Peak Flow: 1.331 mgd Min Flow: 0.367 mgd V&A Project No. 13-0336 4-2 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 4-3 MH ID 333090505: Just north of 9th Street and B Street in center of 9th Street Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 4-3 Data Summary Report 4-3 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 4-3 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 15 inches Baseline Flow: 0.326 mgd Peak Measured Flow: 2.134 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 333090505: Just north of 9th Street and B Street in center of 9th Street Coordinates: 120.9929° W, 37.6327° N V&A Project No. 13-0336 4-3 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 4-3 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 12/11 12/13 12/15 12/17 12/19 1/11 1/13 1/15 1/17 1/19 1/21 1/23 1/25 1/27 1/29 1/31 2/2 2/4 2/6 2/8 2/10 2/12 2/14 2/16 2/18 2/20 2/22 2/24 2/26 2/28 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 12/11 12/13 12/15 12/17 12/19 1/11 1/13 1/15 1/17 1/19 1/21 1/23 1/25 1/27 1/29 1/31 2/2 2/4 2/6 2/8 2/10 2/12 2/14 2/16 2/18 2/20 2/22 2/24 2/26 2/28 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.46 inches Avg Period Flow: 0.360 MGal Peak Daily Flow: 0.817 MGal Min Daily Flow: 0.289 MGal V&A Project No. 13-0336 4-3 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 4-3 Flow Summary: 12/11/2014 to 1/19/2015 0.00 0.50 1.00 1.50 2.00 2.50 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.17 inches Avg Flow: 0.381 mgd Peak Flow: 2.134 mgd Min Flow: 0.146 mgd V&A Project No. 13-0336 4-3 - 4 Appendix A DRAFT Meter Failed From: 12/21/14 to 1/10/15 Meter Failed From: 12/21/14 to 1/10/15 ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 4-3 Flow Summary: 1/20/2015 to 3/1/2015 0.00 0.50 1.00 1.50 2.00 2.50 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.33 inches Avg Flow: 0.350 mgd Peak Flow: 1.707 mgd Min Flow: 0.142 mgd V&A Project No. 13-0336 4-3 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 4-3 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 0.33 mgd Baseline Flow: V&A Project No. 13-0336 4-3 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 4-3 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Surcharged 4.2 inches over crown Peak Measured Level: 19.2 Peak d/D Ratio: 1.28 Pipe Diameter: 15 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 5 10 15 20 25 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 11.2 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 5 10 15 20 25 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 4-3 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 4-3 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.62 inches Event 1 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.62 inches) 2.13 19.22 Peak Flow: PF: Peak Level: mgd in 6.54 d/D Ratio: 1.28 Capacity 1.73 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 673,000 V&A Project No. 13-0336 4.3 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 4-3 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 1.01 inches Event 2 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 1.01 inches) 1.30 10.90 Peak Flow: PF: Peak Level: mgd in 3.99 d/D Ratio: 0.73 Capacity 1.12 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 304,000 V&A Project No. 13-0336 4.3 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 4-3 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.77 inches Event 3 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.77 inches) 1.71 13.25 Peak Flow: PF: Peak Level: mgd in 5.23 d/D Ratio: 0.88 Capacity 1.32 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 99,000 V&A Project No. 13-0336 4.3 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 4-3 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.62 inches Avg Level: 5.79 in. Peak Level: 19.22 in. Min Level: 3.60 in. Avg Velocity: 1.55 fps Peak Velocity: 2.69 fps Min Velocity: 0.89 fps Avg Flow: 0.477 mgd Peak Flow: 2.134 mgd Min Flow: 0.149 mgd V&A Project No. 13-0336 4-3 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 4-3 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.49 inches Avg Level: 5.08 in. Peak Level: 10.90 in. Min Level: 3.55 in. Avg Velocity: 1.53 fps Peak Velocity: 2.39 fps Min Velocity: 1.02 fps Avg Flow: 0.378 mgd Peak Flow: 1.303 mgd Min Flow: 0.146 mgd V&A Project No. 13-0336 4-3 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 4-3 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.04 inches Avg Level: in. Peak Level: in. Min Level: in. Avg Velocity: fps Peak Velocity: fps Min Velocity: fps Avg Flow: mgd Peak Flow: mgd Min Flow: mgd V&A Project No. 13-0336 4-3 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 4-3 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: in. Peak Level: in. Min Level: in. Avg Velocity: fps Peak Velocity: fps Min Velocity: fps Avg Flow: mgd Peak Flow: mgd Min Flow: mgd V&A Project No. 13-0336 4-3 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 4-3 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 5.03 in. Peak Level: 5.96 in. Min Level: 3.97 in. Avg Velocity: 1.45 fps Peak Velocity: 1.71 fps Min Velocity: 1.07 fps Avg Flow: 0.347 mgd Peak Flow: 0.493 mgd Min Flow: 0.187 mgd V&A Project No. 13-0336 4-3 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 4-3 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 5.01 in. Peak Level: 6.04 in. Min Level: 3.70 in. Avg Velocity: 1.44 fps Peak Velocity: 1.79 fps Min Velocity: 0.97 fps Avg Flow: 0.342 mgd Peak Flow: 0.505 mgd Min Flow: 0.151 mgd V&A Project No. 13-0336 4-3 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 4-3 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 4.80 in. Peak Level: 6.05 in. Min Level: 3.69 in. Avg Velocity: 1.43 fps Peak Velocity: 1.86 fps Min Velocity: 0.91 fps Avg Flow: 0.322 mgd Peak Flow: 0.539 mgd Min Flow: 0.142 mgd V&A Project No. 13-0336 4-3 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 4-3 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 4.95 in. Peak Level: 6.06 in. Min Level: 3.68 in. Avg Velocity: 1.44 fps Peak Velocity: 1.84 fps Min Velocity: 0.97 fps Avg Flow: 0.337 mgd Peak Flow: 0.535 mgd Min Flow: 0.147 mgd V&A Project No. 13-0336 4-3 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 4-3 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.09 inches Avg Level: 5.08 in. Peak Level: 13.25 in. Min Level: 3.61 in. Avg Velocity: 1.50 fps Peak Velocity: 2.30 fps Min Velocity: 0.94 fps Avg Flow: 0.368 mgd Peak Flow: 1.707 mgd Min Flow: 0.143 mgd V&A Project No. 13-0336 4-3 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 4-3 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 5.02 in. Peak Level: 6.24 in. Min Level: 3.79 in. Avg Velocity: 1.50 fps Peak Velocity: 1.85 fps Min Velocity: 1.04 fps Avg Flow: 0.357 mgd Peak Flow: 0.561 mgd Min Flow: 0.163 mgd V&A Project No. 13-0336 4-3 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 4-3 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.22 inches Avg Level: 5.18 in. Peak Level: 9.20 in. Min Level: 3.86 in. Avg Velocity: 1.44 fps Peak Velocity: 1.93 fps Min Velocity: 0.94 fps Avg Flow: 0.359 mgd Peak Flow: 0.930 mgd Min Flow: 0.160 mgd V&A Project No. 13-0336 4-3 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 4-3 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 5.14 in. Peak Level: 6.42 in. Min Level: 3.79 in. Avg Velocity: 1.43 fps Peak Velocity: 1.87 fps Min Velocity: 0.84 fps Avg Flow: 0.353 mgd Peak Flow: 0.593 mgd Min Flow: 0.146 mgd V&A Project No. 13-0336 4-3 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 4-4 MH ID 323090817: Beard Street and D Street Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 4-4 Data Summary Report 4-4 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 4-4 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 10 inches Baseline Flow: 0.002 mgd Peak Measured Flow: 0.243 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 323090817: Beard Street and D Street Coordinates: 120.9954° W, 37.6332° N V&A Project No. 13-0336 4-4 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 4-4 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.000 0.002 0.004 0.006 0.008 0.010 0.012 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.000 0.002 0.004 0.006 0.008 0.010 0.012 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.000 0.002 0.004 0.006 0.008 0.010 0.012 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.50 inches Avg Period Flow: 0.003 MGal Peak Daily Flow: 0.010 MGal Min Daily Flow: 0.001 MGal V&A Project No. 13-0336 4-4 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 4-4 Flow Summary: 12/11/2014 to 1/19/2015 0.00 0.05 0.10 0.15 0.20 0.25 0.30 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.05 0.10 0.15 0.20 0.25 0.30 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.17 inches Avg Flow: 0.002 mgd Peak Flow: 0.056 mgd Min Flow: 0.000 mgd V&A Project No. 13-0336 4-4 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 4-4 Flow Summary: 1/20/2015 to 3/1/2015 0.00 0.05 0.10 0.15 0.20 0.25 0.30 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.05 0.10 0.15 0.20 0.25 0.30 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.33 inches Avg Flow: 0.003 mgd Peak Flow: 0.243 mgd Min Flow: 0.001 mgd V&A Project No. 13-0336 4-4 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 4-4 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.000 0.001 0.002 0.003 0.004 0.005 0.006 0.007 0.008 0.009 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 0.002 mgd Baseline Flow: V&A Project No. 13-0336 4-4 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 4-4 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 6.84 Peak d/D Ratio: 0.68 Pipe Diameter: 10 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 2 4 6 8 10 12 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 5.00 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 2 4 6 8 10 12 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 4-4 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 4-4 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.05 0.10 0.15 0.20 0.25 0.30 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.62 inches Event 1 0.00 0.01 0.02 0.03 0.04 0.05 0.06 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.62 inches) 0.05 4.76 Peak Flow: PF: Peak Level: mgd in 23.76 d/D Ratio: 0.48 Capacity 0.05 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 6,000 V&A Project No. 13-0336 4.4 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 4-4 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.05 0.10 0.15 0.20 0.25 0.30 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 1.01 inches Event 2 0.00 0.01 0.02 0.03 0.04 0.05 0.06 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 1.01 inches) 0.06 4.38 Peak Flow: PF: Peak Level: mgd in 24.55 d/D Ratio: 0.44 Capacity 0.05 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 5,000 V&A Project No. 13-0336 4.4 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 4-4 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.05 0.10 0.15 0.20 0.25 0.30 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.77 inches Event 3 0.00 0.05 0.10 0.15 0.20 0.25 0.30 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.77 inches) 0.24 6.84 Peak Flow: PF: Peak Level: mgd in 105.85 d/D Ratio: 0.68 Capacity 0.24 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 8,000 V&A Project No. 13-0336 4.4 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 4-4 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Velocity (fps) Vel 0.00 0.05 0.10 0.15 0.20 0.25 0.30 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.62 inches Avg Level: 1.76 in. Peak Level: 4.76 in. Min Level: 1.04 in. Avg Velocity: 0.07 fps Peak Velocity: 0.33 fps Min Velocity: 0.03 fps Avg Flow: 0.004 mgd Peak Flow: 0.055 mgd Min Flow: 0.001 mgd V&A Project No. 13-0336 4-4 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 4-4 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Velocity (fps) Vel 0.00 0.05 0.10 0.15 0.20 0.25 0.30 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.49 inches Avg Level: 1.51 in. Peak Level: 4.38 in. Min Level: 0.91 in. Avg Velocity: 0.08 fps Peak Velocity: 0.41 fps Min Velocity: 0.03 fps Avg Flow: 0.003 mgd Peak Flow: 0.056 mgd Min Flow: 0.001 mgd V&A Project No. 13-0336 4-4 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 4-4 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Velocity (fps) Vel 0.00 0.05 0.10 0.15 0.20 0.25 0.30 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.04 inches Avg Level: 1.49 in. Peak Level: 2.65 in. Min Level: 0.60 in. Avg Velocity: 0.06 fps Peak Velocity: 0.41 fps Min Velocity: 0.02 fps Avg Flow: 0.002 mgd Peak Flow: 0.013 mgd Min Flow: 0.000 mgd V&A Project No. 13-0336 4-4 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 4-4 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Velocity (fps) Vel 0.00 0.05 0.10 0.15 0.20 0.25 0.30 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 1.43 in. Peak Level: 3.04 in. Min Level: 1.09 in. Avg Velocity: 0.06 fps Peak Velocity: 0.32 fps Min Velocity: 0.03 fps Avg Flow: 0.002 mgd Peak Flow: 0.010 mgd Min Flow: 0.001 mgd V&A Project No. 13-0336 4-4 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 4-4 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Velocity (fps) Vel 0.00 0.05 0.10 0.15 0.20 0.25 0.30 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 1.53 in. Peak Level: 2.69 in. Min Level: 0.58 in. Avg Velocity: 0.06 fps Peak Velocity: 0.41 fps Min Velocity: 0.03 fps Avg Flow: 0.002 mgd Peak Flow: 0.013 mgd Min Flow: 0.000 mgd V&A Project No. 13-0336 4-4 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 4-4 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Velocity (fps) Vel 0.00 0.05 0.10 0.15 0.20 0.25 0.30 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 1.79 in. Peak Level: 3.35 in. Min Level: 1.03 in. Avg Velocity: 0.06 fps Peak Velocity: 0.42 fps Min Velocity: 0.04 fps Avg Flow: 0.003 mgd Peak Flow: 0.021 mgd Min Flow: 0.001 mgd V&A Project No. 13-0336 4-4 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 4-4 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Velocity (fps) Vel 0.00 0.05 0.10 0.15 0.20 0.25 0.30 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 1.77 in. Peak Level: 3.55 in. Min Level: 1.14 in. Avg Velocity: 0.06 fps Peak Velocity: 0.25 fps Min Velocity: 0.04 fps Avg Flow: 0.002 mgd Peak Flow: 0.011 mgd Min Flow: 0.001 mgd V&A Project No. 13-0336 4-4 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 4-4 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Velocity (fps) Vel 0.00 0.05 0.10 0.15 0.20 0.25 0.30 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 1.58 in. Peak Level: 2.42 in. Min Level: 0.92 in. Avg Velocity: 0.06 fps Peak Velocity: 0.28 fps Min Velocity: 0.03 fps Avg Flow: 0.002 mgd Peak Flow: 0.016 mgd Min Flow: 0.001 mgd V&A Project No. 13-0336 4-4 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 4-4 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Velocity (fps) Vel 0.00 0.05 0.10 0.15 0.20 0.25 0.30 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.09 inches Avg Level: 1.57 in. Peak Level: 6.84 in. Min Level: 0.95 in. Avg Velocity: 0.07 fps Peak Velocity: 0.95 fps Min Velocity: 0.03 fps Avg Flow: 0.003 mgd Peak Flow: 0.243 mgd Min Flow: 0.001 mgd V&A Project No. 13-0336 4-4 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 4-4 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Velocity (fps) Vel 0.00 0.05 0.10 0.15 0.20 0.25 0.30 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 1.65 in. Peak Level: 2.53 in. Min Level: 0.99 in. Avg Velocity: 0.06 fps Peak Velocity: 0.49 fps Min Velocity: 0.03 fps Avg Flow: 0.002 mgd Peak Flow: 0.017 mgd Min Flow: 0.001 mgd V&A Project No. 13-0336 4-4 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 4-4 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Velocity (fps) Vel 0.00 0.05 0.10 0.15 0.20 0.25 0.30 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.22 inches Avg Level: 1.74 in. Peak Level: 3.31 in. Min Level: 1.04 in. Avg Velocity: 0.07 fps Peak Velocity: 0.71 fps Min Velocity: 0.04 fps Avg Flow: 0.003 mgd Peak Flow: 0.072 mgd Min Flow: 0.001 mgd V&A Project No. 13-0336 4-4 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 4-4 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Velocity (fps) Vel 0.00 0.05 0.10 0.15 0.20 0.25 0.30 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 1.74 in. Peak Level: 2.77 in. Min Level: 0.97 in. Avg Velocity: 0.06 fps Peak Velocity: 0.35 fps Min Velocity: 0.03 fps Avg Flow: 0.002 mgd Peak Flow: 0.018 mgd Min Flow: 0.001 mgd V&A Project No. 13-0336 4-4 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 5-1 MH ID 323091200KJ: Near pathway on river floodplain off bridge at S. Morton Boulevard and 9th Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 5-1 Data Summary Report 5-1 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 5-1 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 41.5 inches Baseline Flow: 7.619 mgd Peak Measured Flow: 26.615 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 323091200KJ: Near pathway on river floodplain off bridge at S. Morton Boulevard and 9th Street Coordinates: 120.9911° W, 37.6308° N V&A Project No. 13-0336 5-1 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 5-1 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.23 inches Avg Period Flow: 7.792 MGal Peak Daily Flow: 13.055 MGal Min Daily Flow: 6.431 MGal V&A Project No. 13-0336 5-1 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 5-1 Flow Summary: 12/11/2014 to 1/19/2015 0.00 5.00 10.00 15.00 20.00 25.00 30.00 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 3.83 inches Avg Flow: 7.845 mgd Peak Flow: 26.615 mgd Min Flow: 2.502 mgd V&A Project No. 13-0336 5-1 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 5-1 Flow Summary: 1/20/2015 to 3/1/2015 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.41 inches Avg Flow: 7.741 mgd Peak Flow: 17.862 mgd Min Flow: 3.110 mgd V&A Project No. 13-0336 5-1 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 5-1 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 2.00 4.00 6.00 8.00 10.00 12.00 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 7.62 mgd Baseline Flow: V&A Project No. 13-0336 5-1 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 5-1 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Surcharged 79.6 inches over crown Peak Measured Level: 121 Peak d/D Ratio: 2.92 Pipe Diameter: 41.5 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 20 40 60 80 100 120 140 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 31.1 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 20 40 60 80 100 120 140 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 5-1 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 5-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 5.00 10.00 15.00 20.00 25.00 30.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.40 inches Event 1 0.00 5.00 10.00 15.00 20.00 25.00 30.00 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.40 inches) 26.62 121.08 Peak Flow: PF: Peak Level: mgd in 3.49 d/D Ratio: 2.92 Capacity 17.84 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 9,048,000 V&A Project No. 13-0336 5.1 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 5-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 5.00 10.00 15.00 20.00 25.00 30.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.91 inches Event 2 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 0.91 inches) 15.30 21.83 Peak Flow: PF: Peak Level: mgd in 2.01 d/D Ratio: 0.53 Capacity 7.04 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 4,369,000 V&A Project No. 13-0336 5.1 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 5-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 5.00 10.00 15.00 20.00 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.70 inches Event 3 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.70 inches) 17.86 23.01 Peak Flow: PF: Peak Level: mgd in 2.34 d/D Ratio: 0.55 Capacity 7.99 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 1,310,000 V&A Project No. 13-0336 5.1 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 5-1 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 20 40 60 80 100 120 140 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Velocity (fps) Vel 0 5 10 15 20 25 30 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.41 inches Avg Level: 21.73 in. Peak Level: 121.08 in. Min Level: 12.03 in. Avg Velocity: 3.80 fps Peak Velocity: 5.42 fps Min Velocity: 2.42 fps Avg Flow: 9.805 mgd Peak Flow: 26.615 mgd Min Flow: 4.020 mgd V&A Project No. 13-0336 5-1 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 5-1 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.36 inches Avg Level: 15.40 in. Peak Level: 21.83 in. Min Level: 10.85 in. Avg Velocity: 3.73 fps Peak Velocity: 4.80 fps Min Velocity: 2.33 fps Avg Flow: 7.802 mgd Peak Flow: 15.298 mgd Min Flow: 2.942 mgd V&A Project No. 13-0336 5-1 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 5-1 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 14.07 in. Peak Level: 17.56 in. Min Level: 10.26 in. Avg Velocity: 3.84 fps Peak Velocity: 5.10 fps Min Velocity: 2.14 fps Avg Flow: 7.219 mgd Peak Flow: 11.629 mgd Min Flow: 2.502 mgd V&A Project No. 13-0336 5-1 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 5-1 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 14.82 in. Peak Level: 17.77 in. Min Level: 11.46 in. Avg Velocity: 3.83 fps Peak Velocity: 4.74 fps Min Velocity: 2.58 fps Avg Flow: 7.606 mgd Peak Flow: 11.038 mgd Min Flow: 3.624 mgd V&A Project No. 13-0336 5-1 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 5-1 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 15.35 in. Peak Level: 18.44 in. Min Level: 11.92 in. Avg Velocity: 3.79 fps Peak Velocity: 4.64 fps Min Velocity: 2.77 fps Avg Flow: 7.833 mgd Peak Flow: 11.032 mgd Min Flow: 4.033 mgd V&A Project No. 13-0336 5-1 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 5-1 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 15.40 in. Peak Level: 18.38 in. Min Level: 11.98 in. Avg Velocity: 3.67 fps Peak Velocity: 4.82 fps Min Velocity: 2.65 fps Avg Flow: 7.628 mgd Peak Flow: 10.954 mgd Min Flow: 4.022 mgd V&A Project No. 13-0336 5-1 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 5-1 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 15.46 in. Peak Level: 18.25 in. Min Level: 12.15 in. Avg Velocity: 3.69 fps Peak Velocity: 4.44 fps Min Velocity: 2.70 fps Avg Flow: 7.736 mgd Peak Flow: 11.059 mgd Min Flow: 4.112 mgd V&A Project No. 13-0336 5-1 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 5-1 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 15.58 in. Peak Level: 19.12 in. Min Level: 11.83 in. Avg Velocity: 3.63 fps Peak Velocity: 4.30 fps Min Velocity: 2.54 fps Avg Flow: 7.687 mgd Peak Flow: 11.493 mgd Min Flow: 3.712 mgd V&A Project No. 13-0336 5-1 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 5-1 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 20 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.09 inches Avg Level: 15.33 in. Peak Level: 23.01 in. Min Level: 11.49 in. Avg Velocity: 3.73 fps Peak Velocity: 5.17 fps Min Velocity: 2.45 fps Avg Flow: 7.762 mgd Peak Flow: 17.862 mgd Min Flow: 3.392 mgd V&A Project No. 13-0336 5-1 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 5-1 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 15.82 in. Peak Level: 20.25 in. Min Level: 10.94 in. Avg Velocity: 3.52 fps Peak Velocity: 4.37 fps Min Velocity: 2.36 fps Avg Flow: 7.633 mgd Peak Flow: 11.495 mgd Min Flow: 3.286 mgd V&A Project No. 13-0336 5-1 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 5-1 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.27 inches Avg Level: 16.27 in. Peak Level: 21.14 in. Min Level: 10.31 in. Avg Velocity: 3.53 fps Peak Velocity: 4.46 fps Min Velocity: 2.51 fps Avg Flow: 7.985 mgd Peak Flow: 13.063 mgd Min Flow: 3.110 mgd V&A Project No. 13-0336 5-1 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 5-1 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Velocity (fps) Vel 0 2 4 6 8 10 12 14 16 18 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 16.04 in. Peak Level: 20.35 in. Min Level: 10.71 in. Avg Velocity: 3.47 fps Peak Velocity: 4.32 fps Min Velocity: 2.53 fps Avg Flow: 7.671 mgd Peak Flow: 12.690 mgd Min Flow: 3.313 mgd V&A Project No. 13-0336 5-1 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 5-2 MH ID 333090403: S. Santa Rosa Avenue, near rail road crossing between Yosemite Boulevard and Mono Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 5-2 Data Summary Report 5-2 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 5-2 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 28 inches Baseline Flow: 2.104 mgd Peak Measured Flow: 5.404 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 333090403: S. Santa Rosa Avenue, near rail road crossing between Yosemite Boulevard and Mono Drive Coordinates: 120.9799° W, 37.6368° N V&A Project No. 13-0336 5-2 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 5-2 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.32 inches Avg Period Flow: 2.159 MGal Peak Daily Flow: 2.859 MGal Min Daily Flow: 1.946 MGal V&A Project No. 13-0336 5-2 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 5-2 Flow Summary: 12/11/2014 to 1/19/2015 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 3.92 inches Avg Flow: 2.197 mgd Peak Flow: 5.404 mgd Min Flow: 0.731 mgd V&A Project No. 13-0336 5-2 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 5-2 Flow Summary: 1/20/2015 to 3/1/2015 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.40 inches Avg Flow: 2.122 mgd Peak Flow: 4.867 mgd Min Flow: 0.649 mgd V&A Project No. 13-0336 5-2 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 5-2 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 2.10 mgd Baseline Flow: V&A Project No. 13-0336 5-2 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 5-2 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 18.2 Peak d/D Ratio: 0.65 Pipe Diameter: 28 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 5 10 15 20 25 30 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 21.0 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 5 10 15 20 25 30 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 5-2 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 5-2 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.47 inches Event 1 0.00 1.00 2.00 3.00 4.00 5.00 6.00 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.47 inches) 5.40 18.23 Peak Flow: PF: Peak Level: mgd in 2.57 d/D Ratio: 0.65 Capacity 2.85 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 1,344,000 V&A Project No. 13-0336 5.2 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 5-2 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.93 inches Event 2 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 0.93 inches) 3.68 13.99 Peak Flow: PF: Peak Level: mgd in 1.75 d/D Ratio: 0.50 Capacity 1.26 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 355,000 V&A Project No. 13-0336 5.2 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 5-2 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.71 inches Event 3 0.00 1.00 2.00 3.00 4.00 5.00 6.00 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.71 inches) 4.87 16.61 Peak Flow: PF: Peak Level: mgd in 2.31 d/D Ratio: 0.59 Capacity 2.17 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 307,000 V&A Project No. 13-0336 5.2 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 5-2 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.47 inches Avg Level: 9.91 in. Peak Level: 18.23 in. Min Level: 5.16 in. Avg Velocity: 2.63 fps Peak Velocity: 3.01 fps Min Velocity: 2.11 fps Avg Flow: 2.365 mgd Peak Flow: 5.404 mgd Min Flow: 0.790 mgd V&A Project No. 13-0336 5-2 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 5-2 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.39 inches Avg Level: 8.99 in. Peak Level: 13.99 in. Min Level: 4.89 in. Avg Velocity: 2.69 fps Peak Velocity: 3.01 fps Min Velocity: 2.16 fps Avg Flow: 2.112 mgd Peak Flow: 3.680 mgd Min Flow: 0.731 mgd V&A Project No. 13-0336 5-2 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 5-2 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 8.74 in. Peak Level: 12.44 in. Min Level: 4.75 in. Avg Velocity: 2.74 fps Peak Velocity: 3.11 fps Min Velocity: 2.20 fps Avg Flow: 2.078 mgd Peak Flow: 3.408 mgd Min Flow: 0.744 mgd V&A Project No. 13-0336 5-2 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 5-2 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 9.18 in. Peak Level: 12.90 in. Min Level: 5.36 in. Avg Velocity: 2.70 fps Peak Velocity: 3.03 fps Min Velocity: 2.19 fps Avg Flow: 2.189 mgd Peak Flow: 3.631 mgd Min Flow: 0.822 mgd V&A Project No. 13-0336 5-2 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 5-2 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 9.52 in. Peak Level: 12.53 in. Min Level: 5.52 in. Avg Velocity: 2.69 fps Peak Velocity: 3.02 fps Min Velocity: 2.18 fps Avg Flow: 2.289 mgd Peak Flow: 3.361 mgd Min Flow: 0.857 mgd V&A Project No. 13-0336 5-2 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 5-2 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 9.21 in. Peak Level: 12.35 in. Min Level: 5.29 in. Avg Velocity: 2.71 fps Peak Velocity: 3.03 fps Min Velocity: 2.11 fps Avg Flow: 2.205 mgd Peak Flow: 3.386 mgd Min Flow: 0.840 mgd V&A Project No. 13-0336 5-2 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 5-2 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 8.99 in. Peak Level: 12.29 in. Min Level: 4.86 in. Avg Velocity: 2.72 fps Peak Velocity: 3.01 fps Min Velocity: 2.09 fps Avg Flow: 2.144 mgd Peak Flow: 3.280 mgd Min Flow: 0.697 mgd V&A Project No. 13-0336 5-2 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 5-2 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 9.02 in. Peak Level: 12.95 in. Min Level: 4.89 in. Avg Velocity: 2.73 fps Peak Velocity: 3.31 fps Min Velocity: 2.06 fps Avg Flow: 2.167 mgd Peak Flow: 3.583 mgd Min Flow: 0.727 mgd V&A Project No. 13-0336 5-2 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 5-2 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.10 inches Avg Level: 8.77 in. Peak Level: 16.61 in. Min Level: 4.46 in. Avg Velocity: 2.73 fps Peak Velocity: 3.07 fps Min Velocity: 2.20 fps Avg Flow: 2.083 mgd Peak Flow: 4.867 mgd Min Flow: 0.649 mgd V&A Project No. 13-0336 5-2 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 5-2 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 9.17 in. Peak Level: 12.32 in. Min Level: 5.26 in. Avg Velocity: 2.60 fps Peak Velocity: 2.97 fps Min Velocity: 2.00 fps Avg Flow: 2.107 mgd Peak Flow: 3.212 mgd Min Flow: 0.774 mgd V&A Project No. 13-0336 5-2 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 5-2 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.25 inches Avg Level: 9.21 in. Peak Level: 12.32 in. Min Level: 4.80 in. Avg Velocity: 2.63 fps Peak Velocity: 3.05 fps Min Velocity: 2.02 fps Avg Flow: 2.137 mgd Peak Flow: 3.369 mgd Min Flow: 0.711 mgd V&A Project No. 13-0336 5-2 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 5-2 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 9.07 in. Peak Level: 12.12 in. Min Level: 5.01 in. Avg Velocity: 2.67 fps Peak Velocity: 3.00 fps Min Velocity: 2.10 fps Avg Flow: 2.122 mgd Peak Flow: 3.277 mgd Min Flow: 0.769 mgd V&A Project No. 13-0336 5-2 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 5-3 MH ID 273090122: In median of Scenic Drive, between Sunnyside Avenue and Brighton Avenue Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 5-3 Data Summary Report 5-3 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 5-3 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 25.5 inches Baseline Flow: 1.128 mgd Peak Measured Flow: 2.726 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 273090122: In median of Scenic Drive, between Sunnyside Avenue and Brighton Avenue Coordinates: 120.9720° W, 37.6500° N V&A Project No. 13-0336 5-3 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 5-3 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.38 inches Avg Period Flow: 1.191 MGal Peak Daily Flow: 1.517 MGal Min Daily Flow: 0.968 MGal V&A Project No. 13-0336 5-3 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 5-3 Flow Summary: 12/11/2014 to 1/19/2015 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 3.96 inches Avg Flow: 1.243 mgd Peak Flow: 2.726 mgd Min Flow: 0.391 mgd V&A Project No. 13-0336 5-3 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 5-3 Flow Summary: 1/20/2015 to 3/1/2015 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.41 inches Avg Flow: 1.140 mgd Peak Flow: 2.054 mgd Min Flow: 0.366 mgd V&A Project No. 13-0336 5-3 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 5-3 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 1.13 mgd Baseline Flow: V&A Project No. 13-0336 5-3 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 5-3 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 15.1 Peak d/D Ratio: 0.59 Pipe Diameter: 25.5 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 5 10 15 20 25 30 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 19.1 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 5 10 15 20 25 30 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 5-3 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 5-3 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.50 inches Event 1 0.00 0.50 1.00 1.50 2.00 2.50 3.00 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.50 inches) 2.73 15.13 Peak Flow: PF: Peak Level: mgd in 2.42 d/D Ratio: 0.59 Capacity 1.34 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 685,000 V&A Project No. 13-0336 5.3 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 5-3 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.93 inches Event 2 0.00 0.50 1.00 1.50 2.00 2.50 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 0.93 inches) 1.92 12.73 Peak Flow: PF: Peak Level: mgd in 1.70 d/D Ratio: 0.50 Capacity 0.67 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 406,000 V&A Project No. 13-0336 5.3 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 5-3 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.73 inches Event 3 0.00 0.50 1.00 1.50 2.00 2.50 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.73 inches) 2.05 14.21 Peak Flow: PF: Peak Level: mgd in 1.82 d/D Ratio: 0.56 Capacity 0.62 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 106,000 V&A Project No. 13-0336 5.3 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 5-3 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.50 inches Avg Level: 10.80 in. Peak Level: 15.13 in. Min Level: 7.71 in. Avg Velocity: 1.49 fps Peak Velocity: 2.07 fps Min Velocity: 0.82 fps Avg Flow: 1.306 mgd Peak Flow: 2.726 mgd Min Flow: 0.429 mgd V&A Project No. 13-0336 5-3 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 5-3 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.40 inches Avg Level: 10.68 in. Peak Level: 12.73 in. Min Level: 7.85 in. Avg Velocity: 1.41 fps Peak Velocity: 1.86 fps Min Velocity: 0.72 fps Avg Flow: 1.205 mgd Peak Flow: 1.919 mgd Min Flow: 0.391 mgd V&A Project No. 13-0336 5-3 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 5-3 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.04 inches Avg Level: 10.67 in. Peak Level: 13.09 in. Min Level: 7.89 in. Avg Velocity: 1.44 fps Peak Velocity: 1.90 fps Min Velocity: 0.76 fps Avg Flow: 1.229 mgd Peak Flow: 2.019 mgd Min Flow: 0.396 mgd V&A Project No. 13-0336 5-3 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 5-3 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 10.85 in. Peak Level: 12.84 in. Min Level: 8.11 in. Avg Velocity: 1.50 fps Peak Velocity: 1.79 fps Min Velocity: 1.09 fps Avg Flow: 1.295 mgd Peak Flow: 1.866 mgd Min Flow: 0.593 mgd V&A Project No. 13-0336 5-3 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 5-3 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 11.05 in. Peak Level: 13.13 in. Min Level: 8.05 in. Avg Velocity: 1.45 fps Peak Velocity: 1.80 fps Min Velocity: 0.88 fps Avg Flow: 1.294 mgd Peak Flow: 1.896 mgd Min Flow: 0.483 mgd V&A Project No. 13-0336 5-3 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 5-3 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 10.74 in. Peak Level: 13.00 in. Min Level: 7.81 in. Avg Velocity: 1.35 fps Peak Velocity: 1.78 fps Min Velocity: 0.79 fps Avg Flow: 1.158 mgd Peak Flow: 1.806 mgd Min Flow: 0.413 mgd V&A Project No. 13-0336 5-3 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 5-3 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.04 inches Avg Level: 10.82 in. Peak Level: 13.02 in. Min Level: 7.75 in. Avg Velocity: 1.33 fps Peak Velocity: 1.81 fps Min Velocity: 0.73 fps Avg Flow: 1.156 mgd Peak Flow: 1.930 mgd Min Flow: 0.410 mgd V&A Project No. 13-0336 5-3 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 5-3 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 10.82 in. Peak Level: 13.44 in. Min Level: 7.93 in. Avg Velocity: 1.33 fps Peak Velocity: 1.69 fps Min Velocity: 0.79 fps Avg Flow: 1.148 mgd Peak Flow: 1.853 mgd Min Flow: 0.420 mgd V&A Project No. 13-0336 5-3 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 5-3 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.13 inches Avg Level: 10.90 in. Peak Level: 14.21 in. Min Level: 8.03 in. Avg Velocity: 1.32 fps Peak Velocity: 1.74 fps Min Velocity: 0.88 fps Avg Flow: 1.152 mgd Peak Flow: 2.054 mgd Min Flow: 0.496 mgd V&A Project No. 13-0336 5-3 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 5-3 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 10.89 in. Peak Level: 12.95 in. Min Level: 8.02 in. Avg Velocity: 1.35 fps Peak Velocity: 1.68 fps Min Velocity: 0.93 fps Avg Flow: 1.174 mgd Peak Flow: 1.792 mgd Min Flow: 0.497 mgd V&A Project No. 13-0336 5-3 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 5-3 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.24 inches Avg Level: 10.78 in. Peak Level: 13.41 in. Min Level: 7.93 in. Avg Velocity: 1.35 fps Peak Velocity: 1.69 fps Min Velocity: 0.72 fps Avg Flow: 1.163 mgd Peak Flow: 1.784 mgd Min Flow: 0.404 mgd V&A Project No. 13-0336 5-3 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 5-3 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 10.65 in. Peak Level: 12.89 in. Min Level: 7.73 in. Avg Velocity: 1.25 fps Peak Velocity: 1.68 fps Min Velocity: 0.71 fps Avg Flow: 1.060 mgd Peak Flow: 1.665 mgd Min Flow: 0.366 mgd V&A Project No. 13-0336 5-3 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 5-4 MH ID 273090108: Coffee Road and E. Morris Avenue in southbound lane of Coffee Road Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 5-4 Data Summary Report 5-4 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 5-4 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 15 inches Baseline Flow: 0.424 mgd Peak Measured Flow: 1.190 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 273090108: Coffee Road and E. Morris Avenue in southbound lane of Coffee Road Coordinates: 120.9756° W, 37.6509° N V&A Project No. 13-0336 5-4 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 5-4 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.42 inches Avg Period Flow: 0.423 MGal Peak Daily Flow: 0.604 MGal Min Daily Flow: 0.343 MGal V&A Project No. 13-0336 5-4 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 5-4 Flow Summary: 12/11/2014 to 1/19/2015 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.05 inches Avg Flow: 0.406 mgd Peak Flow: 1.190 mgd Min Flow: 0.124 mgd V&A Project No. 13-0336 5-4 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 5-4 Flow Summary: 1/20/2015 to 3/1/2015 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.37 inches Avg Flow: 0.439 mgd Peak Flow: 1.121 mgd Min Flow: 0.121 mgd V&A Project No. 13-0336 5-4 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 5-4 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 0.42 mgd Baseline Flow: V&A Project No. 13-0336 5-4 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 5-4 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 9.5 Peak d/D Ratio: 0.63 Pipe Diameter: 15 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 2 4 6 8 10 12 14 16 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 11.2 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 2 4 6 8 10 12 14 16 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 5-4 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 5-4 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.55 inches Event 1 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.55 inches) 1.19 9.41 Peak Flow: PF: Peak Level: mgd in 2.81 d/D Ratio: 0.63 Capacity 0.78 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 449,000 V&A Project No. 13-0336 5.4 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 5-4 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.95 inches Event 2 0.00 0.20 0.40 0.60 0.80 1.00 1.20 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 0.95 inches) 0.98 8.08 Peak Flow: PF: Peak Level: mgd in 2.32 d/D Ratio: 0.54 Capacity 0.71 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 258,000 V&A Project No. 13-0336 5.4 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 5-4 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.73 inches Event 3 0.00 0.20 0.40 0.60 0.80 1.00 1.20 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.73 inches) 1.12 9.50 Peak Flow: PF: Peak Level: mgd in 2.64 d/D Ratio: 0.63 Capacity 0.63 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 86,000 V&A Project No. 13-0336 5.4 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 5-4 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.55 inches Avg Level: 5.17 in. Peak Level: 9.41 in. Min Level: 3.18 in. Avg Velocity: 1.85 fps Peak Velocity: 2.61 fps Min Velocity: 1.09 fps Avg Flow: 0.469 mgd Peak Flow: 1.190 mgd Min Flow: 0.140 mgd V&A Project No. 13-0336 5-4 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 5-4 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.43 inches Avg Level: 4.85 in. Peak Level: 8.08 in. Min Level: 3.28 in. Avg Velocity: 1.87 fps Peak Velocity: 2.68 fps Min Velocity: 0.94 fps Avg Flow: 0.428 mgd Peak Flow: 0.983 mgd Min Flow: 0.137 mgd V&A Project No. 13-0336 5-4 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 5-4 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.04 inches Avg Level: 4.51 in. Peak Level: 6.01 in. Min Level: 3.24 in. Avg Velocity: 1.76 fps Peak Velocity: 2.37 fps Min Velocity: 1.03 fps Avg Flow: 0.362 mgd Peak Flow: 0.611 mgd Min Flow: 0.132 mgd V&A Project No. 13-0336 5-4 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 5-4 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 4.58 in. Peak Level: 5.81 in. Min Level: 3.30 in. Avg Velocity: 1.76 fps Peak Velocity: 2.45 fps Min Velocity: 0.91 fps Avg Flow: 0.371 mgd Peak Flow: 0.612 mgd Min Flow: 0.124 mgd V&A Project No. 13-0336 5-4 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 5-4 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 4.90 in. Peak Level: 6.16 in. Min Level: 3.41 in. Avg Velocity: 1.81 fps Peak Velocity: 2.47 fps Min Velocity: 0.90 fps Avg Flow: 0.419 mgd Peak Flow: 0.705 mgd Min Flow: 0.127 mgd V&A Project No. 13-0336 5-4 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 5-4 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 4.99 in. Peak Level: 6.36 in. Min Level: 3.51 in. Avg Velocity: 1.76 fps Peak Velocity: 2.50 fps Min Velocity: 0.98 fps Avg Flow: 0.415 mgd Peak Flow: 0.727 mgd Min Flow: 0.153 mgd V&A Project No. 13-0336 5-4 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 5-4 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 5.08 in. Peak Level: 6.66 in. Min Level: 3.47 in. Avg Velocity: 1.76 fps Peak Velocity: 2.50 fps Min Velocity: 0.80 fps Avg Flow: 0.427 mgd Peak Flow: 0.800 mgd Min Flow: 0.128 mgd V&A Project No. 13-0336 5-4 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 5-4 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 5.12 in. Peak Level: 6.56 in. Min Level: 3.41 in. Avg Velocity: 1.74 fps Peak Velocity: 2.53 fps Min Velocity: 0.87 fps Avg Flow: 0.427 mgd Peak Flow: 0.711 mgd Min Flow: 0.137 mgd V&A Project No. 13-0336 5-4 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 5-4 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.11 inches Avg Level: 5.19 in. Peak Level: 9.50 in. Min Level: 3.46 in. Avg Velocity: 1.77 fps Peak Velocity: 2.50 fps Min Velocity: 0.91 fps Avg Flow: 0.445 mgd Peak Flow: 1.121 mgd Min Flow: 0.147 mgd V&A Project No. 13-0336 5-4 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 5-4 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 5.14 in. Peak Level: 7.17 in. Min Level: 3.57 in. Avg Velocity: 1.81 fps Peak Velocity: 2.50 fps Min Velocity: 0.83 fps Avg Flow: 0.448 mgd Peak Flow: 0.848 mgd Min Flow: 0.121 mgd V&A Project No. 13-0336 5-4 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 5-4 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.23 inches Avg Level: 5.19 in. Peak Level: 8.49 in. Min Level: 3.48 in. Avg Velocity: 1.69 fps Peak Velocity: 2.41 fps Min Velocity: 0.94 fps Avg Flow: 0.426 mgd Peak Flow: 0.924 mgd Min Flow: 0.136 mgd V&A Project No. 13-0336 5-4 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 5-4 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 5.20 in. Peak Level: 6.54 in. Min Level: 3.49 in. Avg Velocity: 1.80 fps Peak Velocity: 2.51 fps Min Velocity: 0.91 fps Avg Flow: 0.455 mgd Peak Flow: 0.784 mgd Min Flow: 0.146 mgd V&A Project No. 13-0336 5-4 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 5-5 MH ID 223090302: Rose Avenue and Rockford Avenue, in center of roadway Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 5-5 Data Summary Report 5-5 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 5-5 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 21 inches Baseline Flow: 0.585 mgd Peak Measured Flow: 1.482 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 223090302: Rose Avenue and Rockford Avenue, in center of roadway Coordinates: 120.9666° W, 37.6657° N V&A Project No. 13-0336 5-5 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 5-5 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.47 inches Avg Period Flow: 0.595 MGal Peak Daily Flow: 0.746 MGal Min Daily Flow: 0.532 MGal V&A Project No. 13-0336 5-5 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 5-5 Flow Summary: 12/11/2014 to 1/19/2015 0.00 0.50 1.00 1.50 2.00 2.50 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.10 inches Avg Flow: 0.602 mgd Peak Flow: 1.482 mgd Min Flow: 0.106 mgd V&A Project No. 13-0336 5-5 - 4 Appendix A DRAFT Meter Failed From: 1/13/15 to 1/28/15 ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 5-5 Flow Summary: 1/20/2015 to 3/1/2015 0.00 0.50 1.00 1.50 2.00 2.50 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.43 inches Avg Flow: 0.587 mgd Peak Flow: 1.273 mgd Min Flow: 0.093 mgd V&A Project No. 13-0336 5-5 - 5 Appendix A DRAFT Meter Failed From: 1/13/15 to 1/28/15 ---PAGE BREAK--- SITE 5-5 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 0.59 mgd Baseline Flow: V&A Project No. 13-0336 5-5 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 5-5 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 12.1 Peak d/D Ratio: 0.58 Pipe Diameter: 21 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 5 10 15 20 25 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 15.7 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 5 10 15 20 25 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 5-5 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 5-5 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.59 inches Event 1 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.59 inches) 1.48 12.08 Peak Flow: PF: Peak Level: mgd in 2.53 d/D Ratio: 0.58 Capacity 0.79 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 354,000 V&A Project No. 13-0336 5.5 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 5-5 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.95 inches Event 2 0.00 0.20 0.40 0.60 0.80 1.00 1.20 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 0.95 inches) 1.14 10.23 Peak Flow: PF: Peak Level: mgd in 1.95 d/D Ratio: 0.49 Capacity 0.43 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 44,000 V&A Project No. 13-0336 5.5 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 5-5 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.77 inches Event 3 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.77 inches) 1.27 11.28 Peak Flow: PF: Peak Level: mgd in 2.17 d/D Ratio: 0.54 Capacity 0.62 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 43,000 V&A Project No. 13-0336 5.5 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 5-5 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.59 inches Avg Level: 8.87 in. Peak Level: 12.08 in. Min Level: 6.01 in. Avg Velocity: 0.97 fps Peak Velocity: 1.62 fps Min Velocity: 0.32 fps Avg Flow: 0.634 mgd Peak Flow: 1.482 mgd Min Flow: 0.126 mgd V&A Project No. 13-0336 5-5 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 5-5 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.43 inches Avg Level: 8.68 in. Peak Level: 10.27 in. Min Level: 6.04 in. Avg Velocity: 0.94 fps Peak Velocity: 1.63 fps Min Velocity: 0.31 fps Avg Flow: 0.593 mgd Peak Flow: 1.140 mgd Min Flow: 0.118 mgd V&A Project No. 13-0336 5-5 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 5-5 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.04 inches Avg Level: 8.64 in. Peak Level: 11.32 in. Min Level: 6.05 in. Avg Velocity: 0.94 fps Peak Velocity: 1.60 fps Min Velocity: 0.33 fps Avg Flow: 0.588 mgd Peak Flow: 1.297 mgd Min Flow: 0.125 mgd V&A Project No. 13-0336 5-5 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 5-5 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 8.70 in. Peak Level: 10.52 in. Min Level: 6.15 in. Avg Velocity: 0.94 fps Peak Velocity: 1.77 fps Min Velocity: 0.28 fps Avg Flow: 0.594 mgd Peak Flow: 1.216 mgd Min Flow: 0.106 mgd V&A Project No. 13-0336 5-5 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 5-5 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 8.81 in. Peak Level: 10.81 in. Min Level: 6.22 in. Avg Velocity: 0.95 fps Peak Velocity: 1.61 fps Min Velocity: 0.31 fps Avg Flow: 0.613 mgd Peak Flow: 1.201 mgd Min Flow: 0.120 mgd V&A Project No. 13-0336 5-5 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 5-5 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 8.80 in. Peak Level: 10.17 in. Min Level: 6.27 in. Avg Velocity: 0.95 fps Peak Velocity: 1.55 fps Min Velocity: 0.31 fps Avg Flow: 0.606 mgd Peak Flow: 1.122 mgd Min Flow: 0.122 mgd V&A Project No. 13-0336 5-5 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 5-5 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.04 inches Avg Level: in. Peak Level: in. Min Level: in. Avg Velocity: fps Peak Velocity: fps Min Velocity: fps Avg Flow: mgd Peak Flow: mgd Min Flow: mgd V&A Project No. 13-0336 5-5 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 5-5 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 8.85 in. Peak Level: 10.69 in. Min Level: 6.25 in. Avg Velocity: 0.95 fps Peak Velocity: 1.70 fps Min Velocity: 0.26 fps Avg Flow: 0.617 mgd Peak Flow: 1.222 mgd Min Flow: 0.122 mgd V&A Project No. 13-0336 5-5 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 5-5 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.16 inches Avg Level: 8.66 in. Peak Level: 11.28 in. Min Level: 5.97 in. Avg Velocity: 0.95 fps Peak Velocity: 1.62 fps Min Velocity: 0.32 fps Avg Flow: 0.598 mgd Peak Flow: 1.273 mgd Min Flow: 0.118 mgd V&A Project No. 13-0336 5-5 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 5-5 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 8.70 in. Peak Level: 10.53 in. Min Level: 6.11 in. Avg Velocity: 0.95 fps Peak Velocity: 1.54 fps Min Velocity: 0.31 fps Avg Flow: 0.601 mgd Peak Flow: 1.168 mgd Min Flow: 0.120 mgd V&A Project No. 13-0336 5-5 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 5-5 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.22 inches Avg Level: 8.57 in. Peak Level: 10.66 in. Min Level: 5.92 in. Avg Velocity: 0.92 fps Peak Velocity: 1.59 fps Min Velocity: 0.31 fps Avg Flow: 0.575 mgd Peak Flow: 1.186 mgd Min Flow: 0.118 mgd V&A Project No. 13-0336 5-5 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 5-5 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 8.46 in. Peak Level: 10.28 in. Min Level: 5.72 in. Avg Velocity: 0.91 fps Peak Velocity: 1.53 fps Min Velocity: 0.27 fps Avg Flow: 0.559 mgd Peak Flow: 1.039 mgd Min Flow: 0.093 mgd V&A Project No. 13-0336 5-5 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 6-1 MH ID 333090619: Off right corner of eastbound lane of S. Morton Boulevard at entrance to Beard Brook Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 6-1 Data Summary Report 6-1 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 6-1 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 47.5 inches Baseline Flow: 7.597 mgd Peak Measured Flow: 25.976 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 333090619: Off right corner of eastbound lane of S. Morton Boulevard at entrance to Beard Brook Park Coordinates: 120.9875° W, 37.6312° N V&A Project No. 13-0336 6-1 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 6-1 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.22 inches Avg Period Flow: 7.714 MGal Peak Daily Flow: 11.750 MGal Min Daily Flow: 6.401 MGal V&A Project No. 13-0336 6-1 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 6-1 Flow Summary: 12/11/2014 to 1/19/2015 0.00 5.00 10.00 15.00 20.00 25.00 30.00 35.00 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 5.00 10.00 15.00 20.00 25.00 30.00 35.00 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 3.80 inches Avg Flow: 7.745 mgd Peak Flow: 25.976 mgd Min Flow: 2.774 mgd V&A Project No. 13-0336 6-1 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 6-1 Flow Summary: 1/20/2015 to 3/1/2015 0.00 5.00 10.00 15.00 20.00 25.00 30.00 35.00 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 5.00 10.00 15.00 20.00 25.00 30.00 35.00 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.41 inches Avg Flow: 7.683 mgd Peak Flow: 18.423 mgd Min Flow: 2.627 mgd V&A Project No. 13-0336 6-1 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 6-1 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 2.00 4.00 6.00 8.00 10.00 12.00 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 7.60 mgd Baseline Flow: V&A Project No. 13-0336 6-1 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 6-1 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Surcharged 50.2 inches over crown Peak Measured Level: 97.7 Peak d/D Ratio: 2.06 Pipe Diameter: 47.5 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 20 40 60 80 100 120 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 35.6 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 20 40 60 80 100 120 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 6-1 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 6-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 5.00 10.00 15.00 20.00 25.00 30.00 35.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.39 inches Event 1 0.00 5.00 10.00 15.00 20.00 25.00 30.00 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.39 inches) 25.98 97.69 Peak Flow: PF: Peak Level: mgd in 3.42 d/D Ratio: 2.06 Capacity 17.01 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 7,231,000 V&A Project No. 13-0336 6.1 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 6-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 5.00 10.00 15.00 20.00 25.00 30.00 35.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.91 inches Event 2 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 0.91 inches) 14.26 22.24 Peak Flow: PF: Peak Level: mgd in 1.88 d/D Ratio: 0.47 Capacity 5.15 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 2,934,000 V&A Project No. 13-0336 6.1 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 6-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 5.00 10.00 15.00 20.00 25.00 30.00 35.00 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.69 inches Event 3 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.69 inches) 18.42 24.23 Peak Flow: PF: Peak Level: mgd in 2.43 d/D Ratio: 0.51 Capacity 8.37 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 1,653,000 V&A Project No. 13-0336 6.1 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 6-1 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 20 40 60 80 100 120 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Velocity (fps) Vel 0 5 10 15 20 25 30 35 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.39 inches Avg Level: 21.39 in. Peak Level: 97.69 in. Min Level: 13.72 in. Avg Velocity: 2.89 fps Peak Velocity: 4.64 fps Min Velocity: 1.64 fps Avg Flow: 9.138 mgd Peak Flow: 25.976 mgd Min Flow: 3.130 mgd V&A Project No. 13-0336 6-1 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 6-1 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Velocity (fps) Vel 0 5 10 15 20 25 30 35 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.36 inches Avg Level: 17.67 in. Peak Level: 22.24 in. Min Level: 13.65 in. Avg Velocity: 2.80 fps Peak Velocity: 3.90 fps Min Velocity: 1.46 fps Avg Flow: 7.744 mgd Peak Flow: 14.256 mgd Min Flow: 2.774 mgd V&A Project No. 13-0336 6-1 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 6-1 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Velocity (fps) Vel 0 5 10 15 20 25 30 35 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 17.22 in. Peak Level: 20.05 in. Min Level: 13.44 in. Avg Velocity: 2.69 fps Peak Velocity: 3.48 fps Min Velocity: 1.52 fps Avg Flow: 7.184 mgd Peak Flow: 11.070 mgd Min Flow: 2.862 mgd V&A Project No. 13-0336 6-1 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 6-1 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Velocity (fps) Vel 0 5 10 15 20 25 30 35 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 17.50 in. Peak Level: 20.24 in. Min Level: 13.99 in. Avg Velocity: 2.78 fps Peak Velocity: 3.55 fps Min Velocity: 1.67 fps Avg Flow: 7.570 mgd Peak Flow: 11.322 mgd Min Flow: 3.291 mgd V&A Project No. 13-0336 6-1 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 6-1 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Velocity (fps) Vel 0 5 10 15 20 25 30 35 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 17.29 in. Peak Level: 19.54 in. Min Level: 13.30 in. Avg Velocity: 2.92 fps Peak Velocity: 3.67 fps Min Velocity: 1.68 fps Avg Flow: 7.810 mgd Peak Flow: 11.084 mgd Min Flow: 3.064 mgd V&A Project No. 13-0336 6-1 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 6-1 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Velocity (fps) Vel 0 5 10 15 20 25 30 35 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 16.91 in. Peak Level: 19.43 in. Min Level: 13.15 in. Avg Velocity: 2.91 fps Peak Velocity: 3.87 fps Min Velocity: 1.60 fps Avg Flow: 7.566 mgd Peak Flow: 11.657 mgd Min Flow: 3.003 mgd V&A Project No. 13-0336 6-1 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 6-1 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Velocity (fps) Vel 0 5 10 15 20 25 30 35 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 16.77 in. Peak Level: 19.20 in. Min Level: 12.98 in. Avg Velocity: 2.99 fps Peak Velocity: 3.81 fps Min Velocity: 1.63 fps Avg Flow: 7.710 mgd Peak Flow: 11.462 mgd Min Flow: 2.916 mgd V&A Project No. 13-0336 6-1 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 6-1 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Velocity (fps) Vel 0 5 10 15 20 25 30 35 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 17.13 in. Peak Level: 20.38 in. Min Level: 13.53 in. Avg Velocity: 2.89 fps Peak Velocity: 3.84 fps Min Velocity: 1.61 fps Avg Flow: 7.660 mgd Peak Flow: 12.525 mgd Min Flow: 3.024 mgd V&A Project No. 13-0336 6-1 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 6-1 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Velocity (fps) Vel 0 5 10 15 20 25 30 35 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.09 inches Avg Level: 17.41 in. Peak Level: 24.23 in. Min Level: 13.11 in. Avg Velocity: 2.86 fps Peak Velocity: 4.56 fps Min Velocity: 1.44 fps Avg Flow: 7.823 mgd Peak Flow: 18.423 mgd Min Flow: 2.627 mgd V&A Project No. 13-0336 6-1 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 6-1 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Velocity (fps) Vel 0 5 10 15 20 25 30 35 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 16.75 in. Peak Level: 19.49 in. Min Level: 13.29 in. Avg Velocity: 2.97 fps Peak Velocity: 3.81 fps Min Velocity: 1.73 fps Avg Flow: 7.601 mgd Peak Flow: 11.106 mgd Min Flow: 3.169 mgd V&A Project No. 13-0336 6-1 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 6-1 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Velocity (fps) Vel 0 5 10 15 20 25 30 35 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.27 inches Avg Level: 16.84 in. Peak Level: 20.24 in. Min Level: 13.28 in. Avg Velocity: 3.01 fps Peak Velocity: 3.93 fps Min Velocity: 1.69 fps Avg Flow: 7.769 mgd Peak Flow: 12.704 mgd Min Flow: 3.174 mgd V&A Project No. 13-0336 6-1 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 6-1 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 Velocity (fps) Vel 0 5 10 15 20 25 30 35 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 16.79 in. Peak Level: 19.35 in. Min Level: 13.05 in. Avg Velocity: 2.96 fps Peak Velocity: 3.83 fps Min Velocity: 1.78 fps Avg Flow: 7.598 mgd Peak Flow: 11.502 mgd Min Flow: 3.306 mgd V&A Project No. 13-0336 6-1 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 6-3 MH ID 353090803: Off shoulder at 90°corner of Nathan Avenue and El Roya Avenue Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 6-3 Data Summary Report 6-3 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 6-3 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 48 inches Baseline Flow: 1.439 mgd Peak Measured Flow: 3.910 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 353090803: Off shoulder at 90°corner of Nathan Avenue and El Roya Avenue Coordinates: 120.9409° W, 37.6308° N V&A Project No. 13-0336 6-3 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 6-3 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.14 inches Avg Period Flow: 1.477 MGal Peak Daily Flow: 2.265 MGal Min Daily Flow: 0.558 MGal V&A Project No. 13-0336 6-3 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 6-3 Flow Summary: 12/11/2014 to 1/19/2015 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 3.71 inches Avg Flow: 1.462 mgd Peak Flow: 3.910 mgd Min Flow: 0.354 mgd V&A Project No. 13-0336 6-3 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 6-3 Flow Summary: 1/20/2015 to 3/1/2015 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.43 inches Avg Flow: 1.491 mgd Peak Flow: 3.170 mgd Min Flow: 0.566 mgd V&A Project No. 13-0336 6-3 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 6-3 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 1.44 mgd Baseline Flow: V&A Project No. 13-0336 6-3 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 6-3 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 12.1 Peak d/D Ratio: 0.25 Pipe Diameter: 48 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 10 20 30 40 50 60 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 36.0 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 10 20 30 40 50 60 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 6-3 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 6-3 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.33 inches Event 1 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.33 inches) 3.91 12.09 Peak Flow: PF: Peak Level: mgd in 2.72 d/D Ratio: 0.25 Capacity 2.29 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 1,581,000 V&A Project No. 13-0336 6.3 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 6-3 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.89 inches Event 2 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 0.89 inches) 3.38 10.73 Peak Flow: PF: Peak Level: mgd in 2.35 d/D Ratio: 0.22 Capacity 1.83 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 770,000 V&A Project No. 13-0336 6.3 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 6-3 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.68 inches Event 3 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.68 inches) 2.99 9.87 Peak Flow: PF: Peak Level: mgd in 2.08 d/D Ratio: 0.21 Capacity 1.95 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 694,000 V&A Project No. 13-0336 6.3 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 6-3 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.33 inches Avg Level: 7.65 in. Peak Level: 12.09 in. Min Level: 5.64 in. Avg Velocity: 2.12 fps Peak Velocity: 2.69 fps Min Velocity: 1.32 fps Avg Flow: 1.824 mgd Peak Flow: 3.910 mgd Min Flow: 0.782 mgd V&A Project No. 13-0336 6-3 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 6-3 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.33 inches Avg Level: 7.27 in. Peak Level: 10.73 in. Min Level: 5.01 in. Avg Velocity: 2.13 fps Peak Velocity: 2.54 fps Min Velocity: 1.67 fps Avg Flow: 1.671 mgd Peak Flow: 3.383 mgd Min Flow: 0.769 mgd V&A Project No. 13-0336 6-3 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 6-3 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 6.02 in. Peak Level: 10.04 in. Min Level: 4.03 in. Avg Velocity: 1.86 fps Peak Velocity: 2.45 fps Min Velocity: 1.07 fps Avg Flow: 1.140 mgd Peak Flow: 3.026 mgd Min Flow: 0.354 mgd V&A Project No. 13-0336 6-3 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 6-3 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 6.46 in. Peak Level: 8.42 in. Min Level: 4.60 in. Avg Velocity: 1.97 fps Peak Velocity: 2.58 fps Min Velocity: 1.32 fps Avg Flow: 1.308 mgd Peak Flow: 2.337 mgd Min Flow: 0.541 mgd V&A Project No. 13-0336 6-3 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 6-3 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 6.98 in. Peak Level: 8.58 in. Min Level: 5.09 in. Avg Velocity: 2.11 fps Peak Velocity: 2.49 fps Min Velocity: 1.54 fps Avg Flow: 1.552 mgd Peak Flow: 2.322 mgd Min Flow: 0.740 mgd V&A Project No. 13-0336 6-3 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 6-3 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 6.65 in. Peak Level: 8.92 in. Min Level: 4.75 in. Avg Velocity: 2.06 fps Peak Velocity: 3.50 fps Min Velocity: 1.25 fps Avg Flow: 1.423 mgd Peak Flow: 2.758 mgd Min Flow: 0.522 mgd V&A Project No. 13-0336 6-3 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 6-3 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 6.79 in. Peak Level: 8.71 in. Min Level: 5.14 in. Avg Velocity: 2.07 fps Peak Velocity: 2.43 fps Min Velocity: 1.48 fps Avg Flow: 1.464 mgd Peak Flow: 2.361 mgd Min Flow: 0.725 mgd V&A Project No. 13-0336 6-3 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 6-3 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 6.81 in. Peak Level: 8.21 in. Min Level: 5.22 in. Avg Velocity: 2.08 fps Peak Velocity: 2.83 fps Min Velocity: 1.52 fps Avg Flow: 1.480 mgd Peak Flow: 2.597 mgd Min Flow: 0.774 mgd V&A Project No. 13-0336 6-3 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 6-3 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.09 inches Avg Level: 6.74 in. Peak Level: 9.87 in. Min Level: 4.60 in. Avg Velocity: 2.09 fps Peak Velocity: 3.49 fps Min Velocity: 0.96 fps Avg Flow: 1.483 mgd Peak Flow: 3.170 mgd Min Flow: 0.566 mgd V&A Project No. 13-0336 6-3 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 6-3 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 6.82 in. Peak Level: 8.50 in. Min Level: 5.02 in. Avg Velocity: 2.12 fps Peak Velocity: 3.01 fps Min Velocity: 1.05 fps Avg Flow: 1.508 mgd Peak Flow: 2.198 mgd Min Flow: 0.610 mgd V&A Project No. 13-0336 6-3 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 6-3 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.29 inches Avg Level: 7.11 in. Peak Level: 9.01 in. Min Level: 5.23 in. Avg Velocity: 1.86 fps Peak Velocity: 2.49 fps Min Velocity: 1.19 fps Avg Flow: 1.404 mgd Peak Flow: 2.290 mgd Min Flow: 0.569 mgd V&A Project No. 13-0336 6-3 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 6-3 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 20 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 7.18 in. Peak Level: 10.15 in. Min Level: 5.21 in. Avg Velocity: 2.10 fps Peak Velocity: 2.51 fps Min Velocity: 1.58 fps Avg Flow: 1.613 mgd Peak Flow: 3.052 mgd Min Flow: 0.760 mgd V&A Project No. 13-0336 6-3 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 6-4 MH ID 353090402: Beard Avenue, south of Rodney Avenue at canal Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 6-4 Data Summary Report 6-4 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 6-4 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 45 inches Baseline Flow: 3.257 mgd Peak Measured Flow: 9.002 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 353090402: Beard Avenue, south of Rodney Avenue at canal Coordinates: 120.9435° W, 37.6353° N V&A Project No. 13-0336 6-4 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 6-4 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.13 inches Avg Period Flow: 3.290 MGal Peak Daily Flow: 4.194 MGal Min Daily Flow: 2.926 MGal V&A Project No. 13-0336 6-4 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 6-4 Flow Summary: 12/11/2014 to 1/19/2015 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 3.70 inches Avg Flow: 3.346 mgd Peak Flow: 9.002 mgd Min Flow: 0.790 mgd V&A Project No. 13-0336 6-4 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 6-4 Flow Summary: 1/20/2015 to 3/1/2015 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.43 inches Avg Flow: 3.235 mgd Peak Flow: 7.025 mgd Min Flow: 0.810 mgd V&A Project No. 13-0336 6-4 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 6-4 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 1.00 2.00 3.00 4.00 5.00 6.00 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 3.26 mgd Baseline Flow: V&A Project No. 13-0336 6-4 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 6-4 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 20.8 Peak d/D Ratio: 0.46 Pipe Diameter: 45 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 5 10 15 20 25 30 35 40 45 50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 33.7 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 5 10 15 20 25 30 35 40 45 50 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 6-4 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 6-4 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.33 inches Event 1 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.33 inches) 9.00 20.84 Peak Flow: PF: Peak Level: mgd in 2.76 d/D Ratio: 0.46 Capacity 5.32 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 2,183,000 V&A Project No. 13-0336 6.4 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 6-4 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.88 inches Event 2 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 0.88 inches) 6.10 16.66 Peak Flow: PF: Peak Level: mgd in 1.87 d/D Ratio: 0.37 Capacity 2.66 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 1,628,000 V&A Project No. 13-0336 6.4 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 6-4 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.67 inches Event 3 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.67 inches) 7.03 18.29 Peak Flow: PF: Peak Level: mgd in 2.16 d/D Ratio: 0.41 Capacity 2.88 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 455,000 V&A Project No. 13-0336 6.4 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 6-4 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0 2 4 6 8 10 12 14 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.33 inches Avg Level: 13.29 in. Peak Level: 20.84 in. Min Level: 8.70 in. Avg Velocity: 1.89 fps Peak Velocity: 2.79 fps Min Velocity: 0.81 fps Avg Flow: 3.559 mgd Peak Flow: 9.002 mgd Min Flow: 0.790 mgd V&A Project No. 13-0336 6-4 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 6-4 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0 2 4 6 8 10 12 14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.32 inches Avg Level: 12.79 in. Peak Level: 16.66 in. Min Level: 8.99 in. Avg Velocity: 1.88 fps Peak Velocity: 2.58 fps Min Velocity: 0.85 fps Avg Flow: 3.291 mgd Peak Flow: 6.104 mgd Min Flow: 0.872 mgd V&A Project No. 13-0336 6-4 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 6-4 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0 2 4 6 8 10 12 14 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 13.09 in. Peak Level: 16.63 in. Min Level: 8.68 in. Avg Velocity: 1.91 fps Peak Velocity: 2.56 fps Min Velocity: 0.97 fps Avg Flow: 3.458 mgd Peak Flow: 5.837 mgd Min Flow: 1.057 mgd V&A Project No. 13-0336 6-4 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 6-4 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0 2 4 6 8 10 12 14 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 12.66 in. Peak Level: 16.11 in. Min Level: 8.82 in. Avg Velocity: 1.87 fps Peak Velocity: 2.49 fps Min Velocity: 1.03 fps Avg Flow: 3.207 mgd Peak Flow: 5.577 mgd Min Flow: 1.092 mgd V&A Project No. 13-0336 6-4 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 6-4 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0 2 4 6 8 10 12 14 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 12.94 in. Peak Level: 16.70 in. Min Level: 8.50 in. Avg Velocity: 1.90 fps Peak Velocity: 2.59 fps Min Velocity: 0.89 fps Avg Flow: 3.361 mgd Peak Flow: 5.563 mgd Min Flow: 0.957 mgd V&A Project No. 13-0336 6-4 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 6-4 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0 2 4 6 8 10 12 14 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 12.86 in. Peak Level: 16.46 in. Min Level: 8.74 in. Avg Velocity: 1.86 fps Peak Velocity: 2.63 fps Min Velocity: 0.85 fps Avg Flow: 3.259 mgd Peak Flow: 5.511 mgd Min Flow: 0.967 mgd V&A Project No. 13-0336 6-4 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 6-4 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0 2 4 6 8 10 12 14 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 12.87 in. Peak Level: 16.44 in. Min Level: 8.51 in. Avg Velocity: 1.87 fps Peak Velocity: 2.55 fps Min Velocity: 0.79 fps Avg Flow: 3.297 mgd Peak Flow: 5.843 mgd Min Flow: 0.810 mgd V&A Project No. 13-0336 6-4 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 6-4 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0 2 4 6 8 10 12 14 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 12.66 in. Peak Level: 16.71 in. Min Level: 8.51 in. Avg Velocity: 1.87 fps Peak Velocity: 2.60 fps Min Velocity: 0.80 fps Avg Flow: 3.220 mgd Peak Flow: 5.858 mgd Min Flow: 0.890 mgd V&A Project No. 13-0336 6-4 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 6-4 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0 2 4 6 8 10 12 14 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.09 inches Avg Level: 12.62 in. Peak Level: 18.29 in. Min Level: 8.58 in. Avg Velocity: 1.86 fps Peak Velocity: 2.66 fps Min Velocity: 0.96 fps Avg Flow: 3.209 mgd Peak Flow: 7.025 mgd Min Flow: 0.947 mgd V&A Project No. 13-0336 6-4 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 6-4 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0 2 4 6 8 10 12 14 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 12.76 in. Peak Level: 16.02 in. Min Level: 8.75 in. Avg Velocity: 1.88 fps Peak Velocity: 2.45 fps Min Velocity: 1.07 fps Avg Flow: 3.270 mgd Peak Flow: 5.535 mgd Min Flow: 1.055 mgd V&A Project No. 13-0336 6-4 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 6-4 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0 2 4 6 8 10 12 14 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.29 inches Avg Level: 12.70 in. Peak Level: 17.56 in. Min Level: 8.63 in. Avg Velocity: 1.86 fps Peak Velocity: 2.58 fps Min Velocity: 0.95 fps Avg Flow: 3.238 mgd Peak Flow: 6.464 mgd Min Flow: 0.958 mgd V&A Project No. 13-0336 6-4 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 6-4 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0 2 4 6 8 10 12 14 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 12.68 in. Peak Level: 16.22 in. Min Level: 8.46 in. Avg Velocity: 1.87 fps Peak Velocity: 2.54 fps Min Velocity: 0.99 fps Avg Flow: 3.222 mgd Peak Flow: 5.894 mgd Min Flow: 0.990 mgd V&A Project No. 13-0336 6-4 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 6-5 MH ID 253091304: Lincoln Avenue, just south of Gibson Way Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 6-5 Data Summary Report 6-5 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 6-5 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 36 inches Baseline Flow: 2.980 mgd Peak Measured Flow: 8.902 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 253091304: Lincoln Avenue, just south of Gibson Way Coordinates: 120.9390° W, 37.6391° N V&A Project No. 13-0336 6-5 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 6-5 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.15 inches Avg Period Flow: 2.965 MGal Peak Daily Flow: 4.149 MGal Min Daily Flow: 2.591 MGal V&A Project No. 13-0336 6-5 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 6-5 Flow Summary: 12/11/2014 to 1/19/2015 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 3.72 inches Avg Flow: 2.971 mgd Peak Flow: 8.902 mgd Min Flow: 0.962 mgd V&A Project No. 13-0336 6-5 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 6-5 Flow Summary: 1/20/2015 to 3/1/2015 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.43 inches Avg Flow: 2.960 mgd Peak Flow: 6.378 mgd Min Flow: 0.847 mgd V&A Project No. 13-0336 6-5 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 6-5 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 1.00 2.00 3.00 4.00 5.00 6.00 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 2.98 mgd Baseline Flow: V&A Project No. 13-0336 6-5 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 6-5 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 16.4 Peak d/D Ratio: 0.46 Pipe Diameter: 36 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 5 10 15 20 25 30 35 40 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 27.0 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 5 10 15 20 25 30 35 40 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 6-5 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 6-5 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 2.00 4.00 6.00 8.00 10.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.34 inches Event 1 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.34 inches) 8.90 16.42 Peak Flow: PF: Peak Level: mgd in 2.99 d/D Ratio: 0.46 Capacity 5.77 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 2,108,000 V&A Project No. 13-0336 6.5 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 6-5 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 2.00 4.00 6.00 8.00 10.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.88 inches Event 2 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 0.88 inches) 5.85 12.86 Peak Flow: PF: Peak Level: mgd in 1.96 d/D Ratio: 0.36 Capacity 1.86 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 612,000 V&A Project No. 13-0336 6.5 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 6-5 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.67 inches Event 3 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.67 inches) 6.38 14.09 Peak Flow: PF: Peak Level: mgd in 2.14 d/D Ratio: 0.39 Capacity 2.82 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 415,000 V&A Project No. 13-0336 6.5 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 6-5 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.34 inches Avg Level: 9.25 in. Peak Level: 16.42 in. Min Level: 5.08 in. Avg Velocity: 3.59 fps Peak Velocity: 4.51 fps Min Velocity: 2.72 fps Avg Flow: 3.509 mgd Peak Flow: 8.902 mgd Min Flow: 1.072 mgd V&A Project No. 13-0336 6-5 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 6-5 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.33 inches Avg Level: 8.50 in. Peak Level: 12.86 in. Min Level: 5.17 in. Avg Velocity: 3.42 fps Peak Velocity: 4.11 fps Min Velocity: 2.47 fps Avg Flow: 2.922 mgd Peak Flow: 5.846 mgd Min Flow: 1.015 mgd V&A Project No. 13-0336 6-5 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 6-5 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 8.57 in. Peak Level: 11.61 in. Min Level: 5.01 in. Avg Velocity: 3.44 fps Peak Velocity: 4.18 fps Min Velocity: 2.44 fps Avg Flow: 2.996 mgd Peak Flow: 5.249 mgd Min Flow: 0.962 mgd V&A Project No. 13-0336 6-5 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 6-5 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 8.40 in. Peak Level: 11.44 in. Min Level: 5.10 in. Avg Velocity: 3.27 fps Peak Velocity: 3.98 fps Min Velocity: 2.32 fps Avg Flow: 2.759 mgd Peak Flow: 4.879 mgd Min Flow: 0.963 mgd V&A Project No. 13-0336 6-5 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 6-5 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 8.45 in. Peak Level: 11.51 in. Min Level: 5.19 in. Avg Velocity: 3.44 fps Peak Velocity: 4.13 fps Min Velocity: 2.59 fps Avg Flow: 2.917 mgd Peak Flow: 5.070 mgd Min Flow: 1.060 mgd V&A Project No. 13-0336 6-5 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 6-5 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 8.63 in. Peak Level: 12.32 in. Min Level: 4.84 in. Avg Velocity: 3.37 fps Peak Velocity: 4.16 fps Min Velocity: 2.47 fps Avg Flow: 2.944 mgd Peak Flow: 5.273 mgd Min Flow: 0.969 mgd V&A Project No. 13-0336 6-5 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 6-5 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 8.66 in. Peak Level: 11.96 in. Min Level: 4.81 in. Avg Velocity: 3.34 fps Peak Velocity: 4.05 fps Min Velocity: 2.41 fps Avg Flow: 2.933 mgd Peak Flow: 5.068 mgd Min Flow: 0.917 mgd V&A Project No. 13-0336 6-5 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 6-5 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 8.68 in. Peak Level: 12.68 in. Min Level: 4.94 in. Avg Velocity: 3.35 fps Peak Velocity: 4.18 fps Min Velocity: 2.45 fps Avg Flow: 2.949 mgd Peak Flow: 5.579 mgd Min Flow: 1.017 mgd V&A Project No. 13-0336 6-5 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 6-5 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.09 inches Avg Level: 8.65 in. Peak Level: 14.09 in. Min Level: 4.60 in. Avg Velocity: 3.35 fps Peak Velocity: 4.10 fps Min Velocity: 2.40 fps Avg Flow: 2.948 mgd Peak Flow: 6.378 mgd Min Flow: 0.847 mgd V&A Project No. 13-0336 6-5 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 6-5 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 8.69 in. Peak Level: 11.92 in. Min Level: 5.03 in. Avg Velocity: 3.31 fps Peak Velocity: 3.97 fps Min Velocity: 2.42 fps Avg Flow: 2.916 mgd Peak Flow: 5.135 mgd Min Flow: 0.938 mgd V&A Project No. 13-0336 6-5 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 6-5 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.29 inches Avg Level: 8.82 in. Peak Level: 13.83 in. Min Level: 5.03 in. Avg Velocity: 3.41 fps Peak Velocity: 4.05 fps Min Velocity: 2.56 fps Avg Flow: 3.085 mgd Peak Flow: 6.114 mgd Min Flow: 1.057 mgd V&A Project No. 13-0336 6-5 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 6-5 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 8.78 in. Peak Level: 12.12 in. Min Level: 5.07 in. Avg Velocity: 3.29 fps Peak Velocity: 4.06 fps Min Velocity: 2.43 fps Avg Flow: 2.940 mgd Peak Flow: 5.183 mgd Min Flow: 1.006 mgd V&A Project No. 13-0336 6-5 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 6-6 MH ID 263090302: South end of Scenic Bend, just south of Scenic Drive around turn to east-west road Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 6-6 Data Summary Report 6-6 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 6-6 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 33 inches Baseline Flow: 1.438 mgd Peak Measured Flow: 4.438 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 263090302: South end of Scenic Bend, just south of Scenic Drive around turn to east-west road alignment Coordinates: 120.9460° W, 37.6525° N V&A Project No. 13-0336 6-6 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 6-6 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.27 inches Avg Period Flow: 1.470 MGal Peak Daily Flow: 2.090 MGal Min Daily Flow: 1.333 MGal V&A Project No. 13-0336 6-6 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 6-6 Flow Summary: 12/11/2014 to 1/19/2015 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 3.84 inches Avg Flow: 1.484 mgd Peak Flow: 4.438 mgd Min Flow: 0.486 mgd V&A Project No. 13-0336 6-6 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 6-6 Flow Summary: 1/20/2015 to 3/1/2015 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.43 inches Avg Flow: 1.458 mgd Peak Flow: 3.524 mgd Min Flow: 0.457 mgd V&A Project No. 13-0336 6-6 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 6-6 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.50 1.00 1.50 2.00 2.50 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 1.44 mgd Baseline Flow: V&A Project No. 13-0336 6-6 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 6-6 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 15.2 Peak d/D Ratio: 0.46 Pipe Diameter: 33 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 5 10 15 20 25 30 35 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 24.7 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 5 10 15 20 25 30 35 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 6-6 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 6-6 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.42 inches Event 1 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.42 inches) 4.44 15.20 Peak Flow: PF: Peak Level: mgd in 3.09 d/D Ratio: 0.46 Capacity 2.98 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 1,106,000 V&A Project No. 13-0336 6.6 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 6-6 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.91 inches Event 2 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 0.91 inches) 3.24 12.02 Peak Flow: PF: Peak Level: mgd in 2.25 d/D Ratio: 0.36 Capacity 1.45 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 402,000 V&A Project No. 13-0336 6.6 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 6-6 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.70 inches Event 3 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.70 inches) 3.52 14.14 Peak Flow: PF: Peak Level: mgd in 2.45 d/D Ratio: 0.43 Capacity 1.65 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 244,000 V&A Project No. 13-0336 6.6 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 6-6 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.42 inches Avg Level: 8.47 in. Peak Level: 15.20 in. Min Level: 5.07 in. Avg Velocity: 2.09 fps Peak Velocity: 2.61 fps Min Velocity: 1.33 fps Avg Flow: 1.714 mgd Peak Flow: 4.438 mgd Min Flow: 0.507 mgd V&A Project No. 13-0336 6-6 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 6-6 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.36 inches Avg Level: 7.89 in. Peak Level: 12.02 in. Min Level: 5.21 in. Avg Velocity: 2.06 fps Peak Velocity: 2.62 fps Min Velocity: 1.37 fps Avg Flow: 1.500 mgd Peak Flow: 3.241 mgd Min Flow: 0.543 mgd V&A Project No. 13-0336 6-6 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 6-6 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 7.89 in. Peak Level: 10.03 in. Min Level: 5.23 in. Avg Velocity: 2.02 fps Peak Velocity: 2.47 fps Min Velocity: 1.34 fps Avg Flow: 1.475 mgd Peak Flow: 2.364 mgd Min Flow: 0.550 mgd V&A Project No. 13-0336 6-6 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 6-6 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 7.85 in. Peak Level: 10.01 in. Min Level: 5.21 in. Avg Velocity: 2.00 fps Peak Velocity: 2.42 fps Min Velocity: 1.34 fps Avg Flow: 1.447 mgd Peak Flow: 2.224 mgd Min Flow: 0.573 mgd V&A Project No. 13-0336 6-6 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 6-6 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 7.83 in. Peak Level: 10.10 in. Min Level: 5.28 in. Avg Velocity: 1.97 fps Peak Velocity: 2.38 fps Min Velocity: 1.27 fps Avg Flow: 1.419 mgd Peak Flow: 2.339 mgd Min Flow: 0.531 mgd V&A Project No. 13-0336 6-6 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 6-6 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 7.94 in. Peak Level: 10.27 in. Min Level: 4.84 in. Avg Velocity: 1.96 fps Peak Velocity: 2.38 fps Min Velocity: 1.32 fps Avg Flow: 1.441 mgd Peak Flow: 2.421 mgd Min Flow: 0.486 mgd V&A Project No. 13-0336 6-6 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 6-6 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.04 inches Avg Level: 7.99 in. Peak Level: 10.51 in. Min Level: 4.80 in. Avg Velocity: 1.96 fps Peak Velocity: 2.41 fps Min Velocity: 1.19 fps Avg Flow: 1.452 mgd Peak Flow: 2.381 mgd Min Flow: 0.487 mgd V&A Project No. 13-0336 6-6 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 6-6 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 8.07 in. Peak Level: 10.84 in. Min Level: 5.15 in. Avg Velocity: 1.95 fps Peak Velocity: 2.45 fps Min Velocity: 1.33 fps Avg Flow: 1.462 mgd Peak Flow: 2.420 mgd Min Flow: 0.546 mgd V&A Project No. 13-0336 6-6 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 6-6 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.12 inches Avg Level: 8.18 in. Peak Level: 14.14 in. Min Level: 4.88 in. Avg Velocity: 1.92 fps Peak Velocity: 2.38 fps Min Velocity: 1.16 fps Avg Flow: 1.472 mgd Peak Flow: 3.524 mgd Min Flow: 0.457 mgd V&A Project No. 13-0336 6-6 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 6-6 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 8.12 in. Peak Level: 10.35 in. Min Level: 5.37 in. Avg Velocity: 1.92 fps Peak Velocity: 2.36 fps Min Velocity: 1.17 fps Avg Flow: 1.449 mgd Peak Flow: 2.272 mgd Min Flow: 0.525 mgd V&A Project No. 13-0336 6-6 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 6-6 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.26 inches Avg Level: 8.20 in. Peak Level: 13.32 in. Min Level: 5.28 in. Avg Velocity: 1.86 fps Peak Velocity: 2.37 fps Min Velocity: 1.20 fps Avg Flow: 1.435 mgd Peak Flow: 3.251 mgd Min Flow: 0.517 mgd V&A Project No. 13-0336 6-6 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 6-6 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 8.26 in. Peak Level: 10.71 in. Min Level: 5.33 in. Avg Velocity: 1.91 fps Peak Velocity: 2.43 fps Min Velocity: 1.10 fps Avg Flow: 1.483 mgd Peak Flow: 2.334 mgd Min Flow: 0.526 mgd V&A Project No. 13-0336 6-6 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 6-7 MH ID 233091611: North end of Scenic Bend, just south of Scenic Drive around turn to east-west road Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 6-7 Data Summary Report 6-7 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 6-7 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 33 inches Baseline Flow: 1.261 mgd Peak Measured Flow: 2.927 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 233091611: North end of Scenic Bend, just south of Scenic Drive around turn to east-west road alignment Coordinates: 120.9421° W, 37.6541° N V&A Project No. 13-0336 6-7 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 6-7 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.09 inches Avg Period Flow: 1.245 MGal Peak Daily Flow: 1.562 MGal Min Daily Flow: 1.046 MGal V&A Project No. 13-0336 6-7 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 6-7 Flow Summary: 12/11/2014 to 1/19/2015 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 3.66 inches Avg Flow: 1.237 mgd Peak Flow: 2.927 mgd Min Flow: 0.326 mgd V&A Project No. 13-0336 6-7 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 6-7 Flow Summary: 1/20/2015 to 3/1/2015 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.43 inches Avg Flow: 1.254 mgd Peak Flow: 2.580 mgd Min Flow: 0.313 mgd V&A Project No. 13-0336 6-7 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 6-7 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.50 1.00 1.50 2.00 2.50 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 1.26 mgd Baseline Flow: V&A Project No. 13-0336 6-7 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 6-7 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 8.64 Peak d/D Ratio: 0.26 Pipe Diameter: 33 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 5 10 15 20 25 30 35 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 24.7 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 5 10 15 20 25 30 35 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 6-7 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 6-7 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.30 inches Event 1 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.30 inches) 2.93 8.64 Peak Flow: PF: Peak Level: mgd in 2.32 d/D Ratio: 0.26 Capacity 1.31 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 651,000 V&A Project No. 13-0336 6.7 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 6-7 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.87 inches Event 2 0.00 0.50 1.00 1.50 2.00 2.50 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 0.87 inches) 1.99 6.96 Peak Flow: PF: Peak Level: mgd in 1.58 d/D Ratio: 0.21 Capacity 0.34 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 61,000 V&A Project No. 13-0336 6.7 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 6-7 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.66 inches Event 3 0.00 0.50 1.00 1.50 2.00 2.50 3.00 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.66 inches) 2.53 8.18 Peak Flow: PF: Peak Level: mgd in 2.01 d/D Ratio: 0.25 Capacity 0.98 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 226,000 V&A Project No. 13-0336 6.7 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 6-7 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.30 inches Avg Level: 5.64 in. Peak Level: 8.64 in. Min Level: 3.31 in. Avg Velocity: 3.02 fps Peak Velocity: 3.96 fps Min Velocity: 1.76 fps Avg Flow: 1.401 mgd Peak Flow: 2.927 mgd Min Flow: 0.357 mgd V&A Project No. 13-0336 6-7 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 6-7 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.31 inches Avg Level: 5.29 in. Peak Level: 6.96 in. Min Level: 3.23 in. Avg Velocity: 2.93 fps Peak Velocity: 3.92 fps Min Velocity: 1.80 fps Avg Flow: 1.226 mgd Peak Flow: 2.243 mgd Min Flow: 0.361 mgd V&A Project No. 13-0336 6-7 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 6-7 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 5.35 in. Peak Level: 7.17 in. Min Level: 3.18 in. Avg Velocity: 2.93 fps Peak Velocity: 3.80 fps Min Velocity: 1.81 fps Avg Flow: 1.261 mgd Peak Flow: 2.335 mgd Min Flow: 0.343 mgd V&A Project No. 13-0336 6-7 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 6-7 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 5.17 in. Peak Level: 6.99 in. Min Level: 3.02 in. Avg Velocity: 2.88 fps Peak Velocity: 3.72 fps Min Velocity: 1.71 fps Avg Flow: 1.177 mgd Peak Flow: 2.128 mgd Min Flow: 0.326 mgd V&A Project No. 13-0336 6-7 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 6-7 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 5.22 in. Peak Level: 6.94 in. Min Level: 3.18 in. Avg Velocity: 2.88 fps Peak Velocity: 3.72 fps Min Velocity: 1.76 fps Avg Flow: 1.184 mgd Peak Flow: 2.165 mgd Min Flow: 0.334 mgd V&A Project No. 13-0336 6-7 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 6-7 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 5.33 in. Peak Level: 7.24 in. Min Level: 3.07 in. Avg Velocity: 2.88 fps Peak Velocity: 3.79 fps Min Velocity: 1.73 fps Avg Flow: 1.224 mgd Peak Flow: 2.182 mgd Min Flow: 0.358 mgd V&A Project No. 13-0336 6-7 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 6-7 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 5.45 in. Peak Level: 7.32 in. Min Level: 3.27 in. Avg Velocity: 2.92 fps Peak Velocity: 3.99 fps Min Velocity: 1.55 fps Avg Flow: 1.279 mgd Peak Flow: 2.352 mgd Min Flow: 0.321 mgd V&A Project No. 13-0336 6-7 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 6-7 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 5.35 in. Peak Level: 7.74 in. Min Level: 2.93 in. Avg Velocity: 2.80 fps Peak Velocity: 3.88 fps Min Velocity: 1.61 fps Avg Flow: 1.199 mgd Peak Flow: 2.580 mgd Min Flow: 0.313 mgd V&A Project No. 13-0336 6-7 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 6-7 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.08 inches Avg Level: 5.38 in. Peak Level: 8.18 in. Min Level: 2.95 in. Avg Velocity: 2.79 fps Peak Velocity: 3.70 fps Min Velocity: 1.60 fps Avg Flow: 1.210 mgd Peak Flow: 2.534 mgd Min Flow: 0.318 mgd V&A Project No. 13-0336 6-7 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 6-7 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 5.49 in. Peak Level: 7.30 in. Min Level: 3.34 in. Avg Velocity: 2.91 fps Peak Velocity: 3.88 fps Min Velocity: 1.84 fps Avg Flow: 1.286 mgd Peak Flow: 2.418 mgd Min Flow: 0.375 mgd V&A Project No. 13-0336 6-7 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 6-7 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.30 inches Avg Level: 5.54 in. Peak Level: 7.55 in. Min Level: 3.47 in. Avg Velocity: 2.91 fps Peak Velocity: 3.94 fps Min Velocity: 1.82 fps Avg Flow: 1.309 mgd Peak Flow: 2.467 mgd Min Flow: 0.391 mgd V&A Project No. 13-0336 6-7 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 6-7 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 5.37 in. Peak Level: 7.57 in. Min Level: 3.15 in. Avg Velocity: 2.91 fps Peak Velocity: 3.84 fps Min Velocity: 1.84 fps Avg Flow: 1.255 mgd Peak Flow: 2.555 mgd Min Flow: 0.357 mgd V&A Project No. 13-0336 6-7 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 6-8 MH ID 243090301: Wild Palms Drive between Pepper Tree Lane and Fransen Lane Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 6-8 Data Summary Report 6-8 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 6-8 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 30 inches Baseline Flow: 0.606 mgd Peak Measured Flow: 1.465 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 243090301: Wild Palms Drive between Pepper Tree Lane and Fransen Lane Coordinates: 120.9303° W, 37.6663° N V&A Project No. 13-0336 6-8 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 6-8 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.20 inches Avg Period Flow: 0.604 MGal Peak Daily Flow: 0.733 MGal Min Daily Flow: 0.486 MGal V&A Project No. 13-0336 6-8 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 6-8 Flow Summary: 12/11/2014 to 1/19/2015 0.00 0.50 1.00 1.50 2.00 2.50 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 3.76 inches Avg Flow: 0.611 mgd Peak Flow: 1.465 mgd Min Flow: 0.061 mgd V&A Project No. 13-0336 6-8 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 6-8 Flow Summary: 1/20/2015 to 3/1/2015 0.00 0.50 1.00 1.50 2.00 2.50 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.44 inches Avg Flow: 0.599 mgd Peak Flow: 1.192 mgd Min Flow: 0.112 mgd V&A Project No. 13-0336 6-8 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 6-8 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 0.61 mgd Baseline Flow: V&A Project No. 13-0336 6-8 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 6-8 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 9.12 Peak d/D Ratio: 0.30 Pipe Diameter: 30 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 5 10 15 20 25 30 35 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 22.5 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 5 10 15 20 25 30 35 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 6-8 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 6-8 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.36 inches Event 1 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.36 inches) 1.47 9.12 Peak Flow: PF: Peak Level: mgd in 2.42 d/D Ratio: 0.30 Capacity 0.62 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 280,000 V&A Project No. 13-0336 6.8 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 6-8 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.89 inches Event 2 0.00 0.20 0.40 0.60 0.80 1.00 1.20 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 0.89 inches) 1.13 7.66 Peak Flow: PF: Peak Level: mgd in 1.87 d/D Ratio: 0.26 Capacity 0.26 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 132,000 V&A Project No. 13-0336 6.8 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 6-8 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.69 inches Event 3 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.69 inches) 1.16 7.75 Peak Flow: PF: Peak Level: mgd in 1.91 d/D Ratio: 0.26 Capacity 0.29 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 67,000 V&A Project No. 13-0336 6.8 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 6-8 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.37 inches Avg Level: 5.93 in. Peak Level: 9.12 in. Min Level: 3.62 in. Avg Velocity: 1.42 fps Peak Velocity: 1.83 fps Min Velocity: 0.68 fps Avg Flow: 0.670 mgd Peak Flow: 1.465 mgd Min Flow: 0.154 mgd V&A Project No. 13-0336 6-8 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 6-8 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.33 inches Avg Level: 5.71 in. Peak Level: 7.66 in. Min Level: 3.68 in. Avg Velocity: 1.40 fps Peak Velocity: 1.87 fps Min Velocity: 0.73 fps Avg Flow: 0.621 mgd Peak Flow: 1.153 mgd Min Flow: 0.163 mgd V&A Project No. 13-0336 6-8 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 6-8 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 5.72 in. Peak Level: 7.86 in. Min Level: 3.57 in. Avg Velocity: 1.41 fps Peak Velocity: 1.87 fps Min Velocity: 0.63 fps Avg Flow: 0.636 mgd Peak Flow: 1.170 mgd Min Flow: 0.136 mgd V&A Project No. 13-0336 6-8 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 6-8 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 5.45 in. Peak Level: 7.15 in. Min Level: 3.10 in. Avg Velocity: 1.35 fps Peak Velocity: 1.84 fps Min Velocity: 0.35 fps Avg Flow: 0.568 mgd Peak Flow: 0.975 mgd Min Flow: 0.061 mgd V&A Project No. 13-0336 6-8 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 6-8 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 5.63 in. Peak Level: 8.13 in. Min Level: 3.72 in. Avg Velocity: 1.37 fps Peak Velocity: 1.86 fps Min Velocity: 0.63 fps Avg Flow: 0.593 mgd Peak Flow: 1.288 mgd Min Flow: 0.150 mgd V&A Project No. 13-0336 6-8 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 6-8 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 5.65 in. Peak Level: 7.89 in. Min Level: 3.58 in. Avg Velocity: 1.37 fps Peak Velocity: 1.78 fps Min Velocity: 0.61 fps Avg Flow: 0.600 mgd Peak Flow: 1.142 mgd Min Flow: 0.143 mgd V&A Project No. 13-0336 6-8 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 6-8 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.04 inches Avg Level: 5.67 in. Peak Level: 7.82 in. Min Level: 3.54 in. Avg Velocity: 1.37 fps Peak Velocity: 1.82 fps Min Velocity: 0.61 fps Avg Flow: 0.604 mgd Peak Flow: 1.188 mgd Min Flow: 0.142 mgd V&A Project No. 13-0336 6-8 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 6-8 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 5.61 in. Peak Level: 7.82 in. Min Level: 3.48 in. Avg Velocity: 1.37 fps Peak Velocity: 1.78 fps Min Velocity: 0.69 fps Avg Flow: 0.593 mgd Peak Flow: 1.144 mgd Min Flow: 0.149 mgd V&A Project No. 13-0336 6-8 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 6-8 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.11 inches Avg Level: 5.67 in. Peak Level: 7.92 in. Min Level: 3.50 in. Avg Velocity: 1.38 fps Peak Velocity: 1.85 fps Min Velocity: 0.62 fps Avg Flow: 0.608 mgd Peak Flow: 1.155 mgd Min Flow: 0.133 mgd V&A Project No. 13-0336 6-8 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 6-8 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 5.64 in. Peak Level: 7.84 in. Min Level: 3.53 in. Avg Velocity: 1.36 fps Peak Velocity: 1.79 fps Min Velocity: 0.49 fps Avg Flow: 0.594 mgd Peak Flow: 1.183 mgd Min Flow: 0.112 mgd V&A Project No. 13-0336 6-8 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 6-8 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.28 inches Avg Level: 5.65 in. Peak Level: 8.12 in. Min Level: 3.53 in. Avg Velocity: 1.37 fps Peak Velocity: 1.85 fps Min Velocity: 0.58 fps Avg Flow: 0.601 mgd Peak Flow: 1.192 mgd Min Flow: 0.131 mgd V&A Project No. 13-0336 6-8 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 6-8 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 5.62 in. Peak Level: 7.57 in. Min Level: 3.51 in. Avg Velocity: 1.36 fps Peak Velocity: 1.80 fps Min Velocity: 0.59 fps Avg Flow: 0.593 mgd Peak Flow: 1.087 mgd Min Flow: 0.136 mgd V&A Project No. 13-0336 6-8 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 6-9 MH ID 233090227: Eastbound lane of St. Pauls Way, west of Sturm Drive and St. Pauls Court Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 6-9 Data Summary Report 6-9 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 6-9 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 30 inches Baseline Flow: 0.905 mgd Peak Measured Flow: 1.996 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 233090227: Eastbound lane of St. Pauls Way, west of Sturm Drive and St. Pauls Court Coordinates: 120.9530° W, 37.6654° N V&A Project No. 13-0336 6-9 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 6-9 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.20 0.40 0.60 0.80 1.00 1.20 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.20 0.40 0.60 0.80 1.00 1.20 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.20 0.40 0.60 0.80 1.00 1.20 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.42 inches Avg Period Flow: 0.921 MGal Peak Daily Flow: 1.092 MGal Min Daily Flow: 0.820 MGal V&A Project No. 13-0336 6-9 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 6-9 Flow Summary: 12/11/2014 to 1/19/2015 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 3.98 inches Avg Flow: 0.932 mgd Peak Flow: 1.996 mgd Min Flow: 0.263 mgd V&A Project No. 13-0336 6-9 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 6-9 Flow Summary: 1/20/2015 to 3/1/2015 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.44 inches Avg Flow: 0.910 mgd Peak Flow: 1.754 mgd Min Flow: 0.233 mgd V&A Project No. 13-0336 6-9 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 6-9 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 0.90 mgd Baseline Flow: V&A Project No. 13-0336 6-9 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 6-9 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 11.9 Peak d/D Ratio: 0.40 Pipe Diameter: 30 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 5 10 15 20 25 30 35 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 22.5 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 5 10 15 20 25 30 35 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 6-9 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 6-9 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.51 inches Event 1 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.51 inches) 2.00 11.91 Peak Flow: PF: Peak Level: mgd in 2.21 d/D Ratio: 0.40 Capacity 0.88 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 390,000 V&A Project No. 13-0336 6.9 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 6-9 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.93 inches Event 2 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 0.93 inches) 1.37 9.92 Peak Flow: PF: Peak Level: mgd in 1.51 d/D Ratio: 0.33 Capacity 0.23 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 65,000 V&A Project No. 13-0336 6.9 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 6-9 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.74 inches Event 3 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.74 inches) 1.57 10.39 Peak Flow: PF: Peak Level: mgd in 1.74 d/D Ratio: 0.35 Capacity 0.40 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 85,000 V&A Project No. 13-0336 6.9 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 6-9 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.52 inches Avg Level: 8.30 in. Peak Level: 11.91 in. Min Level: 4.85 in. Avg Velocity: 1.32 fps Peak Velocity: 1.75 fps Min Velocity: 0.86 fps Avg Flow: 0.992 mgd Peak Flow: 1.996 mgd Min Flow: 0.289 mgd V&A Project No. 13-0336 6-9 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 6-9 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.40 inches Avg Level: 8.02 in. Peak Level: 10.44 in. Min Level: 5.00 in. Avg Velocity: 1.25 fps Peak Velocity: 1.63 fps Min Velocity: 0.75 fps Avg Flow: 0.889 mgd Peak Flow: 1.584 mgd Min Flow: 0.276 mgd V&A Project No. 13-0336 6-9 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 6-9 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.04 inches Avg Level: 8.06 in. Peak Level: 10.57 in. Min Level: 4.85 in. Avg Velocity: 1.29 fps Peak Velocity: 1.70 fps Min Velocity: 0.77 fps Avg Flow: 0.929 mgd Peak Flow: 1.632 mgd Min Flow: 0.263 mgd V&A Project No. 13-0336 6-9 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 6-9 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 8.09 in. Peak Level: 10.39 in. Min Level: 4.96 in. Avg Velocity: 1.29 fps Peak Velocity: 1.63 fps Min Velocity: 0.80 fps Avg Flow: 0.933 mgd Peak Flow: 1.579 mgd Min Flow: 0.277 mgd V&A Project No. 13-0336 6-9 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 6-9 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 8.20 in. Peak Level: 10.89 in. Min Level: 5.09 in. Avg Velocity: 1.29 fps Peak Velocity: 1.67 fps Min Velocity: 0.79 fps Avg Flow: 0.947 mgd Peak Flow: 1.705 mgd Min Flow: 0.282 mgd V&A Project No. 13-0336 6-9 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 6-9 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 8.09 in. Peak Level: 10.76 in. Min Level: 4.52 in. Avg Velocity: 1.27 fps Peak Velocity: 1.66 fps Min Velocity: 0.79 fps Avg Flow: 0.913 mgd Peak Flow: 1.580 mgd Min Flow: 0.285 mgd V&A Project No. 13-0336 6-9 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 6-9 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.04 inches Avg Level: 7.98 in. Peak Level: 10.66 in. Min Level: 4.58 in. Avg Velocity: 1.29 fps Peak Velocity: 1.86 fps Min Velocity: 0.73 fps Avg Flow: 0.915 mgd Peak Flow: 1.746 mgd Min Flow: 0.233 mgd V&A Project No. 13-0336 6-9 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 6-9 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 7.96 in. Peak Level: 10.96 in. Min Level: 4.64 in. Avg Velocity: 1.27 fps Peak Velocity: 1.67 fps Min Velocity: 0.76 fps Avg Flow: 0.904 mgd Peak Flow: 1.754 mgd Min Flow: 0.259 mgd V&A Project No. 13-0336 6-9 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 6-9 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.15 inches Avg Level: 7.91 in. Peak Level: 10.65 in. Min Level: 4.53 in. Avg Velocity: 1.28 fps Peak Velocity: 1.64 fps Min Velocity: 0.78 fps Avg Flow: 0.901 mgd Peak Flow: 1.589 mgd Min Flow: 0.253 mgd V&A Project No. 13-0336 6-9 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 6-9 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 7.86 in. Peak Level: 10.31 in. Min Level: 4.56 in. Avg Velocity: 1.29 fps Peak Velocity: 1.64 fps Min Velocity: 0.87 fps Avg Flow: 0.895 mgd Peak Flow: 1.557 mgd Min Flow: 0.279 mgd V&A Project No. 13-0336 6-9 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 6-9 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.24 inches Avg Level: 8.15 in. Peak Level: 10.54 in. Min Level: 4.84 in. Avg Velocity: 1.28 fps Peak Velocity: 1.70 fps Min Velocity: 0.82 fps Avg Flow: 0.938 mgd Peak Flow: 1.651 mgd Min Flow: 0.284 mgd V&A Project No. 13-0336 6-9 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 6-9 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 8.01 in. Peak Level: 10.88 in. Min Level: 4.72 in. Avg Velocity: 1.30 fps Peak Velocity: 1.71 fps Min Velocity: 0.79 fps Avg Flow: 0.924 mgd Peak Flow: 1.667 mgd Min Flow: 0.273 mgd V&A Project No. 13-0336 6-9 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 6-10 MH ID 363090303: S. McClure Road, south of Yosemite Boulevard Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 6-10 Data Summary Report 6-10 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 6-10 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 10 inches Baseline Flow: 0.287 mgd Peak Measured Flow: 0.707 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 363090303: S. McClure Road, south of Yosemite Boulevard Coordinates: 120.9299° W, 37.6369° N V&A Project No. 13-0336 6-10 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 6-10 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.08 inches Avg Period Flow: 0.287 MGal Peak Daily Flow: 0.390 MGal Min Daily Flow: 0.239 MGal V&A Project No. 13-0336 6-10 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 6-10 Flow Summary: 12/11/2014 to 1/19/2015 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 3.65 inches Avg Flow: 0.296 mgd Peak Flow: 0.707 mgd Min Flow: 0.093 mgd V&A Project No. 13-0336 6-10 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 6-10 Flow Summary: 1/20/2015 to 3/1/2015 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.43 inches Avg Flow: 0.278 mgd Peak Flow: 0.599 mgd Min Flow: 0.097 mgd V&A Project No. 13-0336 6-10 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 6-10 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 0.29 mgd Baseline Flow: V&A Project No. 13-0336 6-10 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 6-10 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Surcharged 12.5 inches over crown Peak Measured Level: 22.5 Peak d/D Ratio: 2.25 Pipe Diameter: 10 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 5 10 15 20 25 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 5.00 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 5 10 15 20 25 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 6-10 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 6-10 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.20 0.40 0.60 0.80 1.00 1.20 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.29 inches Event 1 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.29 inches) 0.71 22.54 Peak Flow: PF: Peak Level: mgd in 2.47 d/D Ratio: 2.25 Capacity 0.51 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 274,000 V&A Project No. 13-0336 6.10 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 6-10 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.20 0.40 0.60 0.80 1.00 1.20 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.87 inches Event 2 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 0.87 inches) 0.46 7.27 Peak Flow: PF: Peak Level: mgd in 1.62 d/D Ratio: 0.73 Capacity 0.14 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 71,000 V&A Project No. 13-0336 6.10 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 6-10 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.20 0.40 0.60 0.80 1.00 1.20 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.66 inches Event 3 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.66 inches) 0.60 19.36 Peak Flow: PF: Peak Level: mgd in 2.09 d/D Ratio: 1.94 Capacity 0.26 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 52,000 V&A Project No. 13-0336 6.10 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 6-10 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.29 inches Avg Level: 7.23 in. Peak Level: 22.54 in. Min Level: 3.85 in. Avg Velocity: 1.41 fps Peak Velocity: 2.01 fps Min Velocity: 0.91 fps Avg Flow: 0.335 mgd Peak Flow: 0.707 mgd Min Flow: 0.114 mgd V&A Project No. 13-0336 6-10 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 6-10 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.30 inches Avg Level: 5.85 in. Peak Level: 7.32 in. Min Level: 3.84 in. Avg Velocity: 1.37 fps Peak Velocity: 1.71 fps Min Velocity: 0.89 fps Avg Flow: 0.299 mgd Peak Flow: 0.464 mgd Min Flow: 0.116 mgd V&A Project No. 13-0336 6-10 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 6-10 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 6.02 in. Peak Level: 7.57 in. Min Level: 4.18 in. Avg Velocity: 1.29 fps Peak Velocity: 1.68 fps Min Velocity: 0.84 fps Avg Flow: 0.292 mgd Peak Flow: 0.471 mgd Min Flow: 0.120 mgd V&A Project No. 13-0336 6-10 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 6-10 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 6.20 in. Peak Level: 8.37 in. Min Level: 4.18 in. Avg Velocity: 1.33 fps Peak Velocity: 1.79 fps Min Velocity: 0.83 fps Avg Flow: 0.311 mgd Peak Flow: 0.551 mgd Min Flow: 0.116 mgd V&A Project No. 13-0336 6-10 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 6-10 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 5.97 in. Peak Level: 7.52 in. Min Level: 4.08 in. Avg Velocity: 1.32 fps Peak Velocity: 1.80 fps Min Velocity: 0.81 fps Avg Flow: 0.295 mgd Peak Flow: 0.495 mgd Min Flow: 0.114 mgd V&A Project No. 13-0336 6-10 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 6-10 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 5.68 in. Peak Level: 7.32 in. Min Level: 3.73 in. Avg Velocity: 1.26 fps Peak Velocity: 1.62 fps Min Velocity: 0.77 fps Avg Flow: 0.265 mgd Peak Flow: 0.428 mgd Min Flow: 0.093 mgd V&A Project No. 13-0336 6-10 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 6-10 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 5.73 in. Peak Level: 7.29 in. Min Level: 3.85 in. Avg Velocity: 1.20 fps Peak Velocity: 1.61 fps Min Velocity: 0.71 fps Avg Flow: 0.257 mgd Peak Flow: 0.415 mgd Min Flow: 0.100 mgd V&A Project No. 13-0336 6-10 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 6-10 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 5.92 in. Peak Level: 8.04 in. Min Level: 4.04 in. Avg Velocity: 1.20 fps Peak Velocity: 1.65 fps Min Velocity: 0.69 fps Avg Flow: 0.267 mgd Peak Flow: 0.480 mgd Min Flow: 0.097 mgd V&A Project No. 13-0336 6-10 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 6-10 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.08 inches Avg Level: 6.46 in. Peak Level: 19.36 in. Min Level: 4.23 in. Avg Velocity: 1.26 fps Peak Velocity: 1.70 fps Min Velocity: 0.74 fps Avg Flow: 0.297 mgd Peak Flow: 0.599 mgd Min Flow: 0.107 mgd V&A Project No. 13-0336 6-10 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 6-10 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 5.91 in. Peak Level: 7.84 in. Min Level: 3.99 in. Avg Velocity: 1.21 fps Peak Velocity: 1.55 fps Min Velocity: 0.64 fps Avg Flow: 0.268 mgd Peak Flow: 0.423 mgd Min Flow: 0.105 mgd V&A Project No. 13-0336 6-10 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 6-10 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.30 inches Avg Level: 5.84 in. Peak Level: 8.05 in. Min Level: 3.93 in. Avg Velocity: 1.29 fps Peak Velocity: 1.63 fps Min Velocity: 0.83 fps Avg Flow: 0.281 mgd Peak Flow: 0.492 mgd Min Flow: 0.111 mgd V&A Project No. 13-0336 6-10 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 6-10 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 6.06 in. Peak Level: 7.63 in. Min Level: 4.07 in. Avg Velocity: 1.31 fps Peak Velocity: 1.59 fps Min Velocity: 0.84 fps Avg Flow: 0.297 mgd Peak Flow: 0.446 mgd Min Flow: 0.117 mgd V&A Project No. 13-0336 6-10 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 7-1 MH ID 333090802: Oregon Drive, west of S. Santa Cruz Avenue Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 7-1 Data Summary Report 7-1 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 7-1 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 60 inches Baseline Flow: 5.306 mgd Peak Measured Flow: 19.711 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 333090802: Oregon Drive, west of S. Santa Cruz Avenue Coordinates: 120.9751° W, 37.6310° N V&A Project No. 13-0336 7-1 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 7-1 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.17 inches Avg Period Flow: 5.470 MGal Peak Daily Flow: 8.378 MGal Min Daily Flow: 4.425 MGal V&A Project No. 13-0336 7-1 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 7-1 Flow Summary: 12/11/2014 to 1/19/2015 0.00 5.00 10.00 15.00 20.00 25.00 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 5.00 10.00 15.00 20.00 25.00 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 3.75 inches Avg Flow: 5.466 mgd Peak Flow: 19.711 mgd Min Flow: 1.998 mgd V&A Project No. 13-0336 7-1 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 7-1 Flow Summary: 1/20/2015 to 3/1/2015 0.00 5.00 10.00 15.00 20.00 25.00 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 5.00 10.00 15.00 20.00 25.00 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.42 inches Avg Flow: 5.473 mgd Peak Flow: 11.891 mgd Min Flow: 2.408 mgd V&A Project No. 13-0336 7-1 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 7-1 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 5.31 mgd Baseline Flow: V&A Project No. 13-0336 7-1 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 7-1 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 40.3 Peak d/D Ratio: 0.67 Pipe Diameter: 60 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 10 20 30 40 50 60 70 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 45.0 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 10 20 30 40 50 60 70 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 7-1 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 7-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 5.00 10.00 15.00 20.00 25.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.36 inches Event 1 0.00 5.00 10.00 15.00 20.00 25.00 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.36 inches) 19.71 40.30 Peak Flow: PF: Peak Level: mgd in 3.71 d/D Ratio: 0.67 Capacity 14.32 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 6,107,000 V&A Project No. 13-0336 7.1 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 7-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 5.00 10.00 15.00 20.00 25.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.90 inches Event 2 0.00 2.00 4.00 6.00 8.00 10.00 12.00 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 0.90 inches) 10.84 18.65 Peak Flow: PF: Peak Level: mgd in 2.04 d/D Ratio: 0.31 Capacity 4.47 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 2,458,000 V&A Project No. 13-0336 7.1 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 7-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 5.00 10.00 15.00 20.00 25.00 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.68 inches Event 3 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.68 inches) 11.89 21.31 Peak Flow: PF: Peak Level: mgd in 2.24 d/D Ratio: 0.36 Capacity 5.86 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 1,082,000 V&A Project No. 13-0336 7.1 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 7-1 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0 5 10 15 20 25 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.36 inches Avg Level: 15.08 in. Peak Level: 40.30 in. Min Level: 10.18 in. Avg Velocity: 2.57 fps Peak Velocity: 3.71 fps Min Velocity: 1.42 fps Avg Flow: 6.716 mgd Peak Flow: 19.711 mgd Min Flow: 2.127 mgd V&A Project No. 13-0336 7-1 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 7-1 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0 5 10 15 20 25 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.34 inches Avg Level: 13.56 in. Peak Level: 18.65 in. Min Level: 10.08 in. Avg Velocity: 2.55 fps Peak Velocity: 3.22 fps Min Velocity: 1.69 fps Avg Flow: 5.606 mgd Peak Flow: 10.837 mgd Min Flow: 2.549 mgd V&A Project No. 13-0336 7-1 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 7-1 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0 5 10 15 20 25 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 12.74 in. Peak Level: 16.17 in. Min Level: 8.82 in. Avg Velocity: 2.52 fps Peak Velocity: 2.99 fps Min Velocity: 1.72 fps Avg Flow: 5.089 mgd Peak Flow: 8.183 mgd Min Flow: 1.998 mgd V&A Project No. 13-0336 7-1 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 7-1 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0 5 10 15 20 25 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 12.91 in. Peak Level: 15.23 in. Min Level: 9.59 in. Avg Velocity: 2.55 fps Peak Velocity: 3.03 fps Min Velocity: 1.83 fps Avg Flow: 5.227 mgd Peak Flow: 7.545 mgd Min Flow: 2.507 mgd V&A Project No. 13-0336 7-1 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 7-1 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0 5 10 15 20 25 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 13.36 in. Peak Level: 15.80 in. Min Level: 9.96 in. Avg Velocity: 2.52 fps Peak Velocity: 2.98 fps Min Velocity: 1.88 fps Avg Flow: 5.414 mgd Peak Flow: 7.638 mgd Min Flow: 2.688 mgd V&A Project No. 13-0336 7-1 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 7-1 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0 5 10 15 20 25 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 13.23 in. Peak Level: 15.77 in. Min Level: 9.66 in. Avg Velocity: 2.49 fps Peak Velocity: 3.07 fps Min Velocity: 1.68 fps Avg Flow: 5.268 mgd Peak Flow: 7.916 mgd Min Flow: 2.489 mgd V&A Project No. 13-0336 7-1 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 7-1 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0 5 10 15 20 25 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 13.35 in. Peak Level: 16.24 in. Min Level: 9.74 in. Avg Velocity: 2.53 fps Peak Velocity: 3.11 fps Min Velocity: 1.80 fps Avg Flow: 5.432 mgd Peak Flow: 8.417 mgd Min Flow: 2.458 mgd V&A Project No. 13-0336 7-1 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 7-1 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0 5 10 15 20 25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 13.35 in. Peak Level: 17.32 in. Min Level: 9.94 in. Avg Velocity: 2.53 fps Peak Velocity: 2.99 fps Min Velocity: 1.84 fps Avg Flow: 5.422 mgd Peak Flow: 8.935 mgd Min Flow: 2.586 mgd V&A Project No. 13-0336 7-1 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 7-1 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0 5 10 15 20 25 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.09 inches Avg Level: 13.67 in. Peak Level: 21.31 in. Min Level: 9.68 in. Avg Velocity: 2.52 fps Peak Velocity: 3.16 fps Min Velocity: 1.77 fps Avg Flow: 5.614 mgd Peak Flow: 11.891 mgd Min Flow: 2.408 mgd V&A Project No. 13-0336 7-1 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 7-1 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0 5 10 15 20 25 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 13.32 in. Peak Level: 15.84 in. Min Level: 9.63 in. Avg Velocity: 2.53 fps Peak Velocity: 2.97 fps Min Velocity: 1.56 fps Avg Flow: 5.410 mgd Peak Flow: 7.896 mgd Min Flow: 2.415 mgd V&A Project No. 13-0336 7-1 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 7-1 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0 5 10 15 20 25 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.28 inches Avg Level: 13.45 in. Peak Level: 17.14 in. Min Level: 9.81 in. Avg Velocity: 2.54 fps Peak Velocity: 3.08 fps Min Velocity: 1.85 fps Avg Flow: 5.514 mgd Peak Flow: 9.093 mgd Min Flow: 2.579 mgd V&A Project No. 13-0336 7-1 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 7-1 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0 5 10 15 20 25 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 13.43 in. Peak Level: 16.20 in. Min Level: 9.75 in. Avg Velocity: 2.52 fps Peak Velocity: 2.96 fps Min Velocity: 1.81 fps Avg Flow: 5.458 mgd Peak Flow: 7.979 mgd Min Flow: 2.421 mgd V&A Project No. 13-0336 7-1 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 7-2 MH ID 343090600AD: Tioga Drive and Empire Avenue in westbound stop lane of Tioga Drive Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 7-2 Data Summary Report 7-2 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 7-2 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 47.75 inches Baseline Flow: 0.730 mgd Peak Measured Flow: 5.008 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 343090600AD: Tioga Drive and Empire Avenue in westbound stop lane of Tioga Drive Coordinates: 120.9686° W, 37.6314° N V&A Project No. 13-0336 7-2 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 7-2 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.30 inches Avg Period Flow: 0.786 MGal Peak Daily Flow: 1.661 MGal Min Daily Flow: 0.195 MGal V&A Project No. 13-0336 7-2 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 7-2 Flow Summary: 12/11/2014 to 1/19/2015 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 3.91 inches Avg Flow: 0.784 mgd Peak Flow: 5.008 mgd Min Flow: 0.063 mgd V&A Project No. 13-0336 7-2 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 7-2 Flow Summary: 1/20/2015 to 3/1/2015 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.38 inches Avg Flow: 0.787 mgd Peak Flow: 4.580 mgd Min Flow: 0.058 mgd V&A Project No. 13-0336 7-2 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 7-2 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 0.73 mgd Baseline Flow: V&A Project No. 13-0336 7-2 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 7-2 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 17.1 Peak d/D Ratio: 0.36 Pipe Diameter: 47.8 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 10 20 30 40 50 60 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 35.8 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 10 20 30 40 50 60 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 7-2 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 7-2 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.46 inches Event 1 0.00 1.00 2.00 3.00 4.00 5.00 6.00 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.46 inches) 5.01 17.14 Peak Flow: PF: Peak Level: mgd in 6.86 d/D Ratio: 0.36 Capacity 4.37 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 1,701,000 V&A Project No. 13-0336 7.2 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 7-2 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.94 inches Event 2 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 0.94 inches) 4.17 15.15 Peak Flow: PF: Peak Level: mgd in 5.71 d/D Ratio: 0.32 Capacity 3.47 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 948,000 V&A Project No. 13-0336 7.2 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 7-2 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.72 inches Event 3 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.72 inches) 4.58 16.10 Peak Flow: PF: Peak Level: mgd in 6.27 d/D Ratio: 0.34 Capacity 4.26 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 911,000 V&A Project No. 13-0336 7.2 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 7-2 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.46 inches Avg Level: 8.40 in. Peak Level: 17.14 in. Min Level: 6.23 in. Avg Velocity: 0.99 fps Peak Velocity: 2.03 fps Min Velocity: 0.57 fps Avg Flow: 1.071 mgd Peak Flow: 5.008 mgd Min Flow: 0.353 mgd V&A Project No. 13-0336 7-2 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 7-2 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.40 inches Avg Level: 7.86 in. Peak Level: 15.15 in. Min Level: 6.37 in. Avg Velocity: 0.90 fps Peak Velocity: 1.96 fps Min Velocity: 0.50 fps Avg Flow: 0.833 mgd Peak Flow: 4.167 mgd Min Flow: 0.328 mgd V&A Project No. 13-0336 7-2 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 7-2 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 6.96 in. Peak Level: 9.86 in. Min Level: 4.89 in. Avg Velocity: 0.70 fps Peak Velocity: 1.30 fps Min Velocity: 0.16 fps Avg Flow: 0.544 mgd Peak Flow: 1.548 mgd Min Flow: 0.072 mgd V&A Project No. 13-0336 7-2 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 7-2 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 7.92 in. Peak Level: 10.11 in. Min Level: 6.45 in. Avg Velocity: 0.78 fps Peak Velocity: 1.17 fps Min Velocity: 0.33 fps Avg Flow: 0.696 mgd Peak Flow: 1.307 mgd Min Flow: 0.228 mgd V&A Project No. 13-0336 7-2 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 7-2 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 8.38 in. Peak Level: 11.11 in. Min Level: 7.37 in. Avg Velocity: 0.84 fps Peak Velocity: 1.29 fps Min Velocity: 0.51 fps Avg Flow: 0.800 mgd Peak Flow: 1.742 mgd Min Flow: 0.418 mgd V&A Project No. 13-0336 7-2 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 7-2 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 8.81 in. Peak Level: 11.70 in. Min Level: 6.86 in. Avg Velocity: 0.89 fps Peak Velocity: 1.37 fps Min Velocity: 0.51 fps Avg Flow: 0.935 mgd Peak Flow: 2.021 mgd Min Flow: 0.404 mgd V&A Project No. 13-0336 7-2 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 7-2 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 8.14 in. Peak Level: 9.97 in. Min Level: 4.74 in. Avg Velocity: 0.78 fps Peak Velocity: 1.22 fps Min Velocity: 0.15 fps Avg Flow: 0.730 mgd Peak Flow: 1.420 mgd Min Flow: 0.063 mgd V&A Project No. 13-0336 7-2 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 7-2 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 7.81 in. Peak Level: 9.83 in. Min Level: 5.31 in. Avg Velocity: 0.71 fps Peak Velocity: 1.14 fps Min Velocity: 0.22 fps Avg Flow: 0.628 mgd Peak Flow: 1.355 mgd Min Flow: 0.116 mgd V&A Project No. 13-0336 7-2 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 7-2 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.09 inches Avg Level: 8.64 in. Peak Level: 16.10 in. Min Level: 5.41 in. Avg Velocity: 0.92 fps Peak Velocity: 1.95 fps Min Velocity: 0.35 fps Avg Flow: 0.971 mgd Peak Flow: 4.580 mgd Min Flow: 0.221 mgd V&A Project No. 13-0336 7-2 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 7-2 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 8.11 in. Peak Level: 12.58 in. Min Level: 4.54 in. Avg Velocity: 0.85 fps Peak Velocity: 1.57 fps Min Velocity: 0.15 fps Avg Flow: 0.832 mgd Peak Flow: 2.625 mgd Min Flow: 0.058 mgd V&A Project No. 13-0336 7-2 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 7-2 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.26 inches Avg Level: 7.57 in. Peak Level: 14.26 in. Min Level: 4.56 in. Avg Velocity: 0.75 fps Peak Velocity: 1.80 fps Min Velocity: 0.14 fps Avg Flow: 0.662 mgd Peak Flow: 3.620 mgd Min Flow: 0.062 mgd V&A Project No. 13-0336 7-2 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 7-2 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 8.20 in. Peak Level: 11.73 in. Min Level: 5.44 in. Avg Velocity: 0.88 fps Peak Velocity: 1.46 fps Min Velocity: 0.18 fps Avg Flow: 0.848 mgd Peak Flow: 2.183 mgd Min Flow: 0.090 mgd V&A Project No. 13-0336 7-2 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 7-B MH ID 343090603: Oregon Drive and Empire Avenue in middle of intersection Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 7-B Data Summary Report 7-B - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 7-B Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 30 inches Baseline Flow: 0.206 mgd Peak Measured Flow: 5.483 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 343090603: Oregon Drive and Empire Avenue in middle of intersection Coordinates: 120.9687° W, 37.6311° N V&A Project No. 13-0336 7-B - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 7-B Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 12/24 12/26 12/28 12/30 1/1 1/3 1/5 1/7 1/9 1/11 1/13 1/15 1/17 1/19 1/21 1/23 1/25 1/27 1/29 1/31 2/2 2/4 2/6 2/8 2/10 2/12 2/14 2/16 2/18 2/20 2/22 2/24 2/26 2/28 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 12/24 12/26 12/28 12/30 1/1 1/3 1/5 1/7 1/9 1/11 1/13 1/15 1/17 1/19 1/21 1/23 1/25 1/27 1/29 1/31 2/2 2/4 2/6 2/8 2/10 2/12 2/14 2/16 2/18 2/20 2/22 2/24 2/26 2/28 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 1.43 inches Avg Period Flow: 0.231 MGal Peak Daily Flow: 0.802 MGal Min Daily Flow: 0.084 MGal V&A Project No. 13-0336 7-B - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 7-B Flow Summary: 12/11/2014 to 1/19/2015 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 3.91 inches Avg Flow: 0.193 mgd Peak Flow: 0.387 mgd Min Flow: 0.062 mgd V&A Project No. 13-0336 7-B - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 7-B Flow Summary: 1/20/2015 to 3/1/2015 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 1.00 2.00 3.00 4.00 5.00 6.00 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.38 inches Avg Flow: 0.256 mgd Peak Flow: 5.483 mgd Min Flow: 0.048 mgd V&A Project No. 13-0336 7-B - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 7-B Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 0.21 mgd Baseline Flow: V&A Project No. 13-0336 7-B - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 7-B Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 12.5 Peak d/D Ratio: 0.42 Pipe Diameter: 30 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 5 10 15 20 25 30 35 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 22.5 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 5 10 15 20 25 30 35 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 7-B - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 7-B City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.72 inches Event 3 0.00 1.00 2.00 3.00 4.00 5.00 6.00 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.72 inches) 5.48 12.48 Peak Flow: PF: Peak Level: mgd in 26.61 d/D Ratio: 0.42 Capacity 5.29 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 626,000 V&A Project No. 13-0336 7.B - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 7-B Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 2.13 in. Peak Level: 2.81 in. Min Level: 1.58 in. Avg Velocity: 1.37 fps Peak Velocity: 1.84 fps Min Velocity: 0.96 fps Avg Flow: 0.141 mgd Peak Flow: 0.275 mgd Min Flow: 0.062 mgd V&A Project No. 13-0336 7-B - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 7-B Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 2.41 in. Peak Level: 3.00 in. Min Level: 1.86 in. Avg Velocity: 1.45 fps Peak Velocity: 1.93 fps Min Velocity: 1.06 fps Avg Flow: 0.177 mgd Peak Flow: 0.318 mgd Min Flow: 0.088 mgd V&A Project No. 13-0336 7-B - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 7-B Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 2.62 in. Peak Level: 3.24 in. Min Level: 2.03 in. Avg Velocity: 1.52 fps Peak Velocity: 1.94 fps Min Velocity: 1.01 fps Avg Flow: 0.209 mgd Peak Flow: 0.358 mgd Min Flow: 0.094 mgd V&A Project No. 13-0336 7-B - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 7-B Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 2.67 in. Peak Level: 3.38 in. Min Level: 2.05 in. Avg Velocity: 1.57 fps Peak Velocity: 1.99 fps Min Velocity: 1.04 fps Avg Flow: 0.223 mgd Peak Flow: 0.383 mgd Min Flow: 0.104 mgd V&A Project No. 13-0336 7-B - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 7-B Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 2.69 in. Peak Level: 3.42 in. Min Level: 1.94 in. Avg Velocity: 1.63 fps Peak Velocity: 2.07 fps Min Velocity: 1.12 fps Avg Flow: 0.236 mgd Peak Flow: 0.403 mgd Min Flow: 0.100 mgd V&A Project No. 13-0336 7-B - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 7-B Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 2.70 in. Peak Level: 3.59 in. Min Level: 1.94 in. Avg Velocity: 1.61 fps Peak Velocity: 2.07 fps Min Velocity: 1.08 fps Avg Flow: 0.233 mgd Peak Flow: 0.423 mgd Min Flow: 0.097 mgd V&A Project No. 13-0336 7-B - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 7-B Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.09 inches Avg Level: 3.10 in. Peak Level: 12.48 in. Min Level: 1.96 in. Avg Velocity: 1.75 fps Peak Velocity: 4.39 fps Min Velocity: 1.07 fps Avg Flow: 0.357 mgd Peak Flow: 5.483 mgd Min Flow: 0.096 mgd V&A Project No. 13-0336 7-B - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 7-B Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 2.77 in. Peak Level: 3.64 in. Min Level: 1.35 in. Avg Velocity: 1.58 fps Peak Velocity: 2.02 fps Min Velocity: 0.95 fps Avg Flow: 0.237 mgd Peak Flow: 0.444 mgd Min Flow: 0.048 mgd V&A Project No. 13-0336 7-B - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 7-B Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.26 inches Avg Level: 2.76 in. Peak Level: 9.72 in. Min Level: 1.90 in. Avg Velocity: 1.60 fps Peak Velocity: 3.46 fps Min Velocity: 0.95 fps Avg Flow: 0.249 mgd Peak Flow: 2.989 mgd Min Flow: 0.082 mgd V&A Project No. 13-0336 7-B - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 7-B Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 2.66 in. Peak Level: 3.29 in. Min Level: 1.85 in. Avg Velocity: 1.59 fps Peak Velocity: 2.11 fps Min Velocity: 1.01 fps Avg Flow: 0.224 mgd Peak Flow: 0.367 mgd Min Flow: 0.095 mgd V&A Project No. 13-0336 7-B - 18 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 8-1 MH ID 044090104: Blankenburg Avenue, just west of S. 7th Street on eastbound edge of road Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 8-1 Data Summary Report 8-1 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 8-1 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 24 inches Baseline Flow: 0.796 mgd Peak Measured Flow: 2.998 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 044090104: Blankenburg Avenue, just west of S. 7th Street on eastbound edge of road Coordinates: 120.9915° W, 37.6208° N V&A Project No. 13-0336 8-1 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 8-1 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.54 inches Avg Period Flow: 0.806 MGal Peak Daily Flow: 1.336 MGal Min Daily Flow: 0.585 MGal V&A Project No. 13-0336 8-1 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 8-1 Flow Summary: 12/11/2014 to 1/19/2015 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.16 inches Avg Flow: 0.842 mgd Peak Flow: 2.998 mgd Min Flow: 0.135 mgd V&A Project No. 13-0336 8-1 - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 8-1 Flow Summary: 1/20/2015 to 3/1/2015 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.38 inches Avg Flow: 0.772 mgd Peak Flow: 2.097 mgd Min Flow: 0.140 mgd V&A Project No. 13-0336 8-1 - 5 Appendix A DRAFT ---PAGE BREAK--- SITE 8-1 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 0.80 mgd Baseline Flow: V&A Project No. 13-0336 8-1 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 8-1 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Surcharged 18.2 inches over crown Peak Measured Level: 42.2 Peak d/D Ratio: 1.76 Pipe Diameter: 24 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 5 10 15 20 25 30 35 40 45 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 18.0 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 5 10 15 20 25 30 35 40 45 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 8-1 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 8-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.61 inches Event 1 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.61 inches) 3.00 42.24 Peak Flow: PF: Peak Level: mgd in 3.76 d/D Ratio: 1.76 Capacity 2.12 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 963,000 V&A Project No. 13-0336 8.1 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 8-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 1.03 inches Event 2 0.00 0.50 1.00 1.50 2.00 2.50 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 1.03 inches) 2.09 9.60 Peak Flow: PF: Peak Level: mgd in 2.63 d/D Ratio: 0.40 Capacity 1.17 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 661,000 V&A Project No. 13-0336 8.1 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 8-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.81 inches Event 3 0.00 0.50 1.00 1.50 2.00 2.50 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.81 inches) 2.10 9.36 Peak Flow: PF: Peak Level: mgd in 2.63 d/D Ratio: 0.39 Capacity 1.12 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 159,000 V&A Project No. 13-0336 8.1 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 8-1 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 45 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.61 inches Avg Level: 8.29 in. Peak Level: 42.24 in. Min Level: 4.49 in. Avg Velocity: 1.79 fps Peak Velocity: 2.92 fps Min Velocity: 0.78 fps Avg Flow: 1.044 mgd Peak Flow: 2.998 mgd Min Flow: 0.250 mgd V&A Project No. 13-0336 8-1 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 8-1 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.50 inches Avg Level: 6.86 in. Peak Level: 9.60 in. Min Level: 2.83 in. Avg Velocity: 1.87 fps Peak Velocity: 2.77 fps Min Velocity: 1.09 fps Avg Flow: 0.953 mgd Peak Flow: 2.091 mgd Min Flow: 0.155 mgd V&A Project No. 13-0336 8-1 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 8-1 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 5.66 in. Peak Level: 8.39 in. Min Level: 2.65 in. Avg Velocity: 1.75 fps Peak Velocity: 2.42 fps Min Velocity: 1.05 fps Avg Flow: 0.690 mgd Peak Flow: 1.530 mgd Min Flow: 0.135 mgd V&A Project No. 13-0336 8-1 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 8-1 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 6.64 in. Peak Level: 9.67 in. Min Level: 3.37 in. Avg Velocity: 1.67 fps Peak Velocity: 2.35 fps Min Velocity: 0.98 fps Avg Flow: 0.814 mgd Peak Flow: 1.761 mgd Min Flow: 0.187 mgd V&A Project No. 13-0336 8-1 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 8-1 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 6.50 in. Peak Level: 9.39 in. Min Level: 3.65 in. Avg Velocity: 1.82 fps Peak Velocity: 2.43 fps Min Velocity: 1.05 fps Avg Flow: 0.847 mgd Peak Flow: 1.650 mgd Min Flow: 0.235 mgd V&A Project No. 13-0336 8-1 - 15 Appendix A DRAFT ---PAGE BREAK--- SITE 8-1 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 6.33 in. Peak Level: 8.80 in. Min Level: 3.72 in. Avg Velocity: 1.80 fps Peak Velocity: 2.60 fps Min Velocity: 0.93 fps Avg Flow: 0.810 mgd Peak Flow: 1.750 mgd Min Flow: 0.224 mgd V&A Project No. 13-0336 8-1 - 16 Appendix A DRAFT ---PAGE BREAK--- SITE 8-1 Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 6.28 in. Peak Level: 8.49 in. Min Level: 3.66 in. Avg Velocity: 1.77 fps Peak Velocity: 2.44 fps Min Velocity: 0.93 fps Avg Flow: 0.787 mgd Peak Flow: 1.445 mgd Min Flow: 0.221 mgd V&A Project No. 13-0336 8-1 - 17 Appendix A DRAFT ---PAGE BREAK--- SITE 8-1 Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 6.33 in. Peak Level: 8.41 in. Min Level: 3.83 in. Avg Velocity: 1.79 fps Peak Velocity: 2.51 fps Min Velocity: 0.94 fps Avg Flow: 0.801 mgd Peak Flow: 1.485 mgd Min Flow: 0.224 mgd V&A Project No. 13-0336 8-1 - 18 Appendix A DRAFT ---PAGE BREAK--- SITE 8-1 Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.12 inches Avg Level: 6.02 in. Peak Level: 9.36 in. Min Level: 2.90 in. Avg Velocity: 1.78 fps Peak Velocity: 2.86 fps Min Velocity: 0.96 fps Avg Flow: 0.756 mgd Peak Flow: 2.097 mgd Min Flow: 0.140 mgd V&A Project No. 13-0336 8-1 - 19 Appendix A DRAFT ---PAGE BREAK--- SITE 8-1 Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 5.74 in. Peak Level: 8.14 in. Min Level: 3.40 in. Avg Velocity: 1.74 fps Peak Velocity: 2.32 fps Min Velocity: 1.01 fps Avg Flow: 0.680 mgd Peak Flow: 1.380 mgd Min Flow: 0.190 mgd V&A Project No. 13-0336 8-1 - 20 Appendix A DRAFT ---PAGE BREAK--- SITE 8-1 Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.24 inches Avg Level: 6.55 in. Peak Level: 9.39 in. Min Level: 3.65 in. Avg Velocity: 1.74 fps Peak Velocity: 2.55 fps Min Velocity: 0.99 fps Avg Flow: 0.820 mgd Peak Flow: 1.757 mgd Min Flow: 0.212 mgd V&A Project No. 13-0336 8-1 - 21 Appendix A DRAFT ---PAGE BREAK--- SITE 8-1 Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 6.34 in. Peak Level: 8.91 in. Min Level: 3.62 in. Avg Velocity: 1.72 fps Peak Velocity: 2.47 fps Min Velocity: 0.97 fps Avg Flow: 0.776 mgd Peak Flow: 1.638 mgd Min Flow: 0.193 mgd V&A Project No. 13-0336 8-1 - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 9-1 MH ID 054091603: Cascade Avenue, 1/2 block north of W. Hatch Road Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 9-1 Data Summary Report 9-1 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 9-1 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 30 inches Baseline Flow: 0.193 mgd Peak Measured Flow: 0.992 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 054091603: Cascade Avenue, 1/2 block north of W. Hatch Road Coordinates: 120.9970° W, 37.6099° N V&A Project No. 13-0336 9-1 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 9-1 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 4.21 inches Avg Period Flow: 0.220 MGal Peak Daily Flow: 0.394 MGal Min Daily Flow: 0.155 MGal V&A Project No. 13-0336 9-1 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 9-1 Flow Summary: 12/11/2014 to 1/19/2015 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.23 inches Avg Flow: 0.220 mgd Peak Flow: 0.992 mgd Min Flow: 0.061 mgd V&A Project No. 13-0336 9-1 - 4 Appendix A DRAFT Site removed mid-study Last data, January 13 ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 9-1 Flow Summary: 1/20/2015 to 3/1/2015 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.20 0.40 0.60 0.80 1.00 1.20 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.41 inches Avg Flow: mgd Peak Flow: mgd Min Flow: mgd V&A Project No. 13-0336 9-1 - 5 Appendix A DRAFT Meter was not installed for this time period. This page left intensionally blank. ---PAGE BREAK--- SITE 9-1 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 0.19 mgd Baseline Flow: V&A Project No. 13-0336 9-1 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 9-1 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 8.22 Peak d/D Ratio: 0.27 Pipe Diameter: 30 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 5 10 15 20 25 30 35 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 22.5 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 5 10 15 20 25 30 35 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 9-1 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 9-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.20 0.40 0.60 0.80 1.00 1.20 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.65 inches Event 1 0.00 0.20 0.40 0.60 0.80 1.00 1.20 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.65 inches) 0.99 8.22 Peak Flow: PF: Peak Level: mgd in 5.15 d/D Ratio: 0.27 Capacity 0.70 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 332,000 V&A Project No. 13-0336 9.1 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 9-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.20 0.40 0.60 0.80 1.00 1.20 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 1.08 inches Event 2 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 1.08 inches) 0.59 6.35 Peak Flow: PF: Peak Level: mgd in 3.08 d/D Ratio: 0.21 Capacity 0.40 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 139,000 V&A Project No. 13-0336 9.1 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 9-1 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 Velocity (fps) Vel 0.00 0.20 0.40 0.60 0.80 1.00 1.20 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.65 inches Avg Level: 4.46 in. Peak Level: 8.22 in. Min Level: 2.92 in. Avg Velocity: 0.86 fps Peak Velocity: 1.50 fps Min Velocity: 0.43 fps Avg Flow: 0.280 mgd Peak Flow: 0.992 mgd Min Flow: 0.069 mgd V&A Project No. 13-0336 9-1 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 9-1 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 Velocity (fps) Vel 0.00 0.20 0.40 0.60 0.80 1.00 1.20 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.53 inches Avg Level: 4.20 in. Peak Level: 6.35 in. Min Level: 2.68 in. Avg Velocity: 0.77 fps Peak Velocity: 1.32 fps Min Velocity: 0.40 fps Avg Flow: 0.219 mgd Peak Flow: 0.594 mgd Min Flow: 0.061 mgd V&A Project No. 13-0336 9-1 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 9-1 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 Velocity (fps) Vel 0.00 0.20 0.40 0.60 0.80 1.00 1.20 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 3.99 in. Peak Level: 5.55 in. Min Level: 2.84 in. Avg Velocity: 0.77 fps Peak Velocity: 1.20 fps Min Velocity: 0.41 fps Avg Flow: 0.206 mgd Peak Flow: 0.476 mgd Min Flow: 0.064 mgd V&A Project No. 13-0336 9-1 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 9-1 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 Velocity (fps) Vel 0.00 0.20 0.40 0.60 0.80 1.00 1.20 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 4.05 in. Peak Level: 5.42 in. Min Level: 2.94 in. Avg Velocity: 0.79 fps Peak Velocity: 1.18 fps Min Velocity: 0.44 fps Avg Flow: 0.214 mgd Peak Flow: 0.452 mgd Min Flow: 0.075 mgd V&A Project No. 13-0336 9-1 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 9-1 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 Velocity (fps) Vel 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 4.08 in. Peak Level: 5.47 in. Min Level: 2.85 in. Avg Velocity: 0.75 fps Peak Velocity: 1.15 fps Min Velocity: 0.38 fps Avg Flow: 0.207 mgd Peak Flow: 0.439 mgd Min Flow: 0.062 mgd V&A Project No. 13-0336 9-1 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 9-1 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 Velocity (fps) Vel 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 4.21 in. Peak Level: 5.50 in. Min Level: 2.94 in. Avg Velocity: 0.78 fps Peak Velocity: 1.15 fps Min Velocity: 0.41 fps Avg Flow: 0.226 mgd Peak Flow: 0.456 mgd Min Flow: 0.067 mgd V&A Project No. 13-0336 9-1 - 15 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site 10-1 MH ID 084090104: North of 90º turn on Crater Avenue, north of W. Hatch Road Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site 10-1 Data Summary Report 10-1 - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE 10-1 Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 24 inches Baseline Flow: 0.325 mgd Peak Measured Flow: 1.086 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 084090104: North of 90º turn on Crater Avenue, north of W. Hatch Road Coordinates: 121.0117° W, 37.6070° N V&A Project No. 13-0336 10-1 - 2 Appendix A DRAFT ---PAGE BREAK--- SITE 10-1 Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 4.23 inches Avg Period Flow: 0.338 MGal Peak Daily Flow: 0.472 MGal Min Daily Flow: 0.289 MGal V&A Project No. 13-0336 10-1 - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 10-1 Flow Summary: 12/11/2014 to 1/19/2015 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.24 inches Avg Flow: 0.338 mgd Peak Flow: 1.086 mgd Min Flow: 0.027 mgd V&A Project No. 13-0336 10-1 - 4 Appendix A DRAFT Site removed mid-study Last data, January 14 ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE 10-1 Flow Summary: 1/20/2015 to 3/1/2015 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.42 inches Avg Flow: mgd Peak Flow: mgd Min Flow: mgd V&A Project No. 13-0336 10-1 - 5 Appendix A DRAFT Meter was not installed for this time period. This page left intensionally blank. ---PAGE BREAK--- SITE 10-1 Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 0.33 mgd Baseline Flow: V&A Project No. 13-0336 10-1 - 6 Appendix A DRAFT ---PAGE BREAK--- SITE 10-1 Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 2.81 Peak d/D Ratio: 0.12 Pipe Diameter: 24 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 5 10 15 20 25 30 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 18.0 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 5 10 15 20 25 30 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 10-1 - 7 Appendix A DRAFT ---PAGE BREAK--- SITE 10-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.66 inches Event 1 0.00 0.20 0.40 0.60 0.80 1.00 1.20 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.66 inches) 1.09 2.81 Peak Flow: PF: Peak Level: mgd in 3.34 d/D Ratio: 0.12 Capacity 0.61 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 230,000 V&A Project No. 13-0336 10.1 - 8 Appendix A DRAFT ---PAGE BREAK--- SITE 10-1 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 1.09 inches Event 2 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 1.09 inches) 0.73 2.29 Peak Flow: PF: Peak Level: mgd in 2.23 d/D Ratio: 0.10 Capacity 0.31 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 119,000 V&A Project No. 13-0336 10.1 - 9 Appendix A DRAFT ---PAGE BREAK--- SITE 10-1 Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0 2 4 6 8 10 12 14 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.66 inches Avg Level: 1.57 in. Peak Level: 2.81 in. Min Level: 0.41 in. Avg Velocity: 6.20 fps Peak Velocity: 8.16 fps Min Velocity: 4.22 fps Avg Flow: 0.393 mgd Peak Flow: 1.086 mgd Min Flow: 0.032 mgd V&A Project No. 13-0336 10-1 - 10 Appendix A DRAFT ---PAGE BREAK--- SITE 10-1 Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0 2 4 6 8 10 12 14 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.54 inches Avg Level: 1.48 in. Peak Level: 2.29 in. Min Level: 0.42 in. Avg Velocity: 6.06 fps Peak Velocity: 7.36 fps Min Velocity: 4.27 fps Avg Flow: 0.345 mgd Peak Flow: 0.726 mgd Min Flow: 0.035 mgd V&A Project No. 13-0336 10-1 - 11 Appendix A DRAFT ---PAGE BREAK--- SITE 10-1 Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0 2 4 6 8 10 12 14 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 1.43 in. Peak Level: 2.35 in. Min Level: 0.38 in. Avg Velocity: 6.04 fps Peak Velocity: 7.65 fps Min Velocity: 4.29 fps Avg Flow: 0.335 mgd Peak Flow: 0.779 mgd Min Flow: 0.030 mgd V&A Project No. 13-0336 10-1 - 12 Appendix A DRAFT ---PAGE BREAK--- SITE 10-1 Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0 2 4 6 8 10 12 14 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 1.40 in. Peak Level: 2.24 in. Min Level: 0.39 in. Avg Velocity: 6.01 fps Peak Velocity: 7.32 fps Min Velocity: 4.31 fps Avg Flow: 0.325 mgd Peak Flow: 0.690 mgd Min Flow: 0.031 mgd V&A Project No. 13-0336 10-1 - 13 Appendix A DRAFT ---PAGE BREAK--- SITE 10-1 Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0 2 4 6 8 10 12 14 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 1.40 in. Peak Level: 2.18 in. Min Level: 0.36 in. Avg Velocity: 5.98 fps Peak Velocity: 7.18 fps Min Velocity: 4.23 fps Avg Flow: 0.322 mgd Peak Flow: 0.654 mgd Min Flow: 0.027 mgd V&A Project No. 13-0336 10-1 - 14 Appendix A DRAFT ---PAGE BREAK--- SITE 10-1 Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0 2 4 6 8 10 12 14 Velocity (fps) Vel 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 1.42 in. Peak Level: 2.18 in. Min Level: 0.41 in. Avg Velocity: 6.02 fps Peak Velocity: 7.28 fps Min Velocity: 4.27 fps Avg Flow: 0.326 mgd Peak Flow: 0.662 mgd Min Flow: 0.033 mgd V&A Project No. 13-0336 10-1 - 15 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site A MH ID 123080904: Center of eastbound lane of Veneman Avenue between Beachler Drive and Hahn Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site A Data Summary Report A - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE A Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 18 inches Baseline Flow: 0.528 mgd Peak Measured Flow: 1.761 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 123080904: Center of eastbound lane of Veneman Avenue between Beachler Drive and Hahn Drive Coordinates: 121.0469° W, 37.6894° N V&A Project No. 13-0336 A - 2 Appendix A DRAFT ---PAGE BREAK--- SITE A Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 4.44 inches Avg Period Flow: 0.561 MGal Peak Daily Flow: 0.794 MGal Min Daily Flow: 0.450 MGal V&A Project No. 13-0336 A - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE A Flow Summary: 12/11/2014 to 1/19/2015 0.00 0.50 1.00 1.50 2.00 2.50 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.45 inches Avg Flow: 0.561 mgd Peak Flow: 1.761 mgd Min Flow: 0.047 mgd V&A Project No. 13-0336 A - 4 Appendix A DRAFT Site removed mid-study Last data, January 15 ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE A Flow Summary: 1/20/2015 to 3/1/2015 0.00 0.50 1.00 1.50 2.00 2.50 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.13 inches Avg Flow: mgd Peak Flow: mgd Min Flow: mgd V&A Project No. 13-0336 A - 5 Appendix A DRAFT Meter was not installed for this time period. This page left intensionally blank. ---PAGE BREAK--- SITE A Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 0.53 mgd Baseline Flow: V&A Project No. 13-0336 A - 6 Appendix A DRAFT ---PAGE BREAK--- SITE A Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 12.4 Peak d/D Ratio: 0.69 Pipe Diameter: 18 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 2 4 6 8 10 12 14 16 18 20 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 13.5 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 2 4 6 8 10 12 14 16 18 20 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 A - 7 Appendix A DRAFT ---PAGE BREAK--- SITE A City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.81 inches Event 1 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.81 inches) 1.76 12.35 Peak Flow: PF: Peak Level: mgd in 3.34 d/D Ratio: 0.69 Capacity 1.22 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 509,000 V&A Project No. 13-0336 A - 8 Appendix A DRAFT ---PAGE BREAK--- SITE A City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 1.01 inches Event 2 0.00 0.20 0.40 0.60 0.80 1.00 1.20 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 1.01 inches) 1.09 9.91 Peak Flow: PF: Peak Level: mgd in 2.07 d/D Ratio: 0.55 Capacity 0.63 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 247,000 V&A Project No. 13-0336 A - 9 Appendix A DRAFT ---PAGE BREAK--- SITE A Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.00 0.50 1.00 1.50 2.00 2.50 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.82 inches Avg Level: 8.06 in. Peak Level: 12.35 in. Min Level: 4.27 in. Avg Velocity: 1.25 fps Peak Velocity: 2.12 fps Min Velocity: 0.28 fps Avg Flow: 0.669 mgd Peak Flow: 1.761 mgd Min Flow: 0.059 mgd V&A Project No. 13-0336 A - 10 Appendix A DRAFT ---PAGE BREAK--- SITE A Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.00 0.50 1.00 1.50 2.00 2.50 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.56 inches Avg Level: 7.65 in. Peak Level: 10.16 in. Min Level: 4.50 in. Avg Velocity: 1.20 fps Peak Velocity: 1.76 fps Min Velocity: 0.27 fps Avg Flow: 0.588 mgd Peak Flow: 1.152 mgd Min Flow: 0.062 mgd V&A Project No. 13-0336 A - 11 Appendix A DRAFT ---PAGE BREAK--- SITE A Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.00 0.50 1.00 1.50 2.00 2.50 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.05 inches Avg Level: 7.56 in. Peak Level: 9.94 in. Min Level: 4.34 in. Avg Velocity: 1.16 fps Peak Velocity: 1.72 fps Min Velocity: 0.28 fps Avg Flow: 0.563 mgd Peak Flow: 1.108 mgd Min Flow: 0.063 mgd V&A Project No. 13-0336 A - 12 Appendix A DRAFT ---PAGE BREAK--- SITE A Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.00 0.50 1.00 1.50 2.00 2.50 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 7.47 in. Peak Level: 9.82 in. Min Level: 4.29 in. Avg Velocity: 1.13 fps Peak Velocity: 1.67 fps Min Velocity: 0.26 fps Avg Flow: 0.541 mgd Peak Flow: 1.053 mgd Min Flow: 0.060 mgd V&A Project No. 13-0336 A - 13 Appendix A DRAFT ---PAGE BREAK--- SITE A Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.00 0.50 1.00 1.50 2.00 2.50 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 7.36 in. Peak Level: 9.71 in. Min Level: 4.29 in. Avg Velocity: 1.11 fps Peak Velocity: 1.66 fps Min Velocity: 0.22 fps Avg Flow: 0.521 mgd Peak Flow: 1.031 mgd Min Flow: 0.047 mgd V&A Project No. 13-0336 A - 14 Appendix A DRAFT ---PAGE BREAK--- SITE A Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 18 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Velocity (fps) Vel 0.00 0.50 1.00 1.50 2.00 2.50 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.02 inches Avg Level: 7.26 in. Peak Level: 9.43 in. Min Level: 4.28 in. Avg Velocity: 1.10 fps Peak Velocity: 2.12 fps Min Velocity: 0.24 fps Avg Flow: 0.509 mgd Peak Flow: 1.003 mgd Min Flow: 0.058 mgd V&A Project No. 13-0336 A - 15 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site B MH ID 293091310: N. Jefferson Street and Linden Street Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site B Data Summary Report B - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE B Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 16 inches Baseline Flow: 0.260 mgd Peak Measured Flow: 1.577 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 293091310: N. Jefferson Street and Linden Street Coordinates: 121.0089° W, 37.6404° N V&A Project No. 13-0336 B - 2 Appendix A DRAFT ---PAGE BREAK--- SITE B Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.50 inches Avg Period Flow: 0.301 MGal Peak Daily Flow: 0.750 MGal Min Daily Flow: 0.216 MGal V&A Project No. 13-0336 B - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE B Flow Summary: 12/11/2014 to 1/19/2015 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.25 inches Avg Flow: 0.332 mgd Peak Flow: 1.577 mgd Min Flow: 0.023 mgd V&A Project No. 13-0336 B - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE B Flow Summary: 1/20/2015 to 3/1/2015 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.25 inches Avg Flow: 0.270 mgd Peak Flow: 1.232 mgd Min Flow: 0.016 mgd V&A Project No. 13-0336 B - 5 Appendix A DRAFT ---PAGE BREAK--- SITE B Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 0.26 mgd Baseline Flow: V&A Project No. 13-0336 B - 6 Appendix A DRAFT ---PAGE BREAK--- SITE B Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Surcharged 12.8 inches over crown Peak Measured Level: 28.8 Peak d/D Ratio: 1.80 Pipe Diameter: 16 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 5 10 15 20 25 30 35 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 12.0 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 5 10 15 20 25 30 35 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 B - 7 Appendix A DRAFT ---PAGE BREAK--- SITE B City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.67 inches Event 1 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.67 inches) 1.55 28.80 Peak Flow: PF: Peak Level: mgd in 5.95 d/D Ratio: 1.80 Capacity 1.20 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 846,000 V&A Project No. 13-0336 B - 8 Appendix A DRAFT ---PAGE BREAK--- SITE B City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 1.00 inches Event 2 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 1.00 inches) 1.58 12.50 Peak Flow: PF: Peak Level: mgd in 6.06 d/D Ratio: 0.78 Capacity 1.24 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 469,000 V&A Project No. 13-0336 B - 9 Appendix A DRAFT ---PAGE BREAK--- SITE B City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.73 inches Event 3 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.73 inches) 1.23 12.57 Peak Flow: PF: Peak Level: mgd in 4.74 d/D Ratio: 0.79 Capacity 0.97 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 110,000 V&A Project No. 13-0336 B - 10 Appendix A DRAFT ---PAGE BREAK--- SITE B Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.68 inches Avg Level: 7.46 in. Peak Level: 28.80 in. Min Level: 3.47 in. Avg Velocity: 1.66 fps Peak Velocity: 2.26 fps Min Velocity: 1.26 fps Avg Flow: 0.536 mgd Peak Flow: 1.549 mgd Min Flow: 0.210 mgd V&A Project No. 13-0336 B - 11 Appendix A DRAFT ---PAGE BREAK--- SITE B Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.50 inches Avg Level: 4.89 in. Peak Level: 12.50 in. Min Level: 2.08 in. Avg Velocity: 1.68 fps Peak Velocity: 2.26 fps Min Velocity: 1.12 fps Avg Flow: 0.409 mgd Peak Flow: 1.577 mgd Min Flow: 0.088 mgd V&A Project No. 13-0336 B - 12 Appendix A DRAFT ---PAGE BREAK--- SITE B Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.04 inches Avg Level: 4.02 in. Peak Level: 5.50 in. Min Level: 1.01 in. Avg Velocity: 1.56 fps Peak Velocity: 1.89 fps Min Velocity: 0.88 fps Avg Flow: 0.287 mgd Peak Flow: 0.518 mgd Min Flow: 0.023 mgd V&A Project No. 13-0336 B - 13 Appendix A DRAFT ---PAGE BREAK--- SITE B Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 4.04 in. Peak Level: 4.93 in. Min Level: 1.28 in. Avg Velocity: 1.55 fps Peak Velocity: 1.80 fps Min Velocity: 0.87 fps Avg Flow: 0.285 mgd Peak Flow: 0.406 mgd Min Flow: 0.033 mgd V&A Project No. 13-0336 B - 14 Appendix A DRAFT ---PAGE BREAK--- SITE B Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 4.14 in. Peak Level: 5.07 in. Min Level: 1.55 in. Avg Velocity: 1.62 fps Peak Velocity: 1.83 fps Min Velocity: 1.13 fps Avg Flow: 0.303 mgd Peak Flow: 0.449 mgd Min Flow: 0.054 mgd V&A Project No. 13-0336 B - 15 Appendix A DRAFT ---PAGE BREAK--- SITE B Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 3.89 in. Peak Level: 4.95 in. Min Level: 1.13 in. Avg Velocity: 1.58 fps Peak Velocity: 1.85 fps Min Velocity: 1.02 fps Avg Flow: 0.272 mgd Peak Flow: 0.395 mgd Min Flow: 0.030 mgd V&A Project No. 13-0336 B - 16 Appendix A DRAFT ---PAGE BREAK--- SITE B Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 3.92 in. Peak Level: 4.91 in. Min Level: 2.16 in. Avg Velocity: 1.53 fps Peak Velocity: 1.78 fps Min Velocity: 1.28 fps Avg Flow: 0.265 mgd Peak Flow: 0.387 mgd Min Flow: 0.093 mgd V&A Project No. 13-0336 B - 17 Appendix A DRAFT ---PAGE BREAK--- SITE B Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 3.96 in. Peak Level: 5.42 in. Min Level: 1.42 in. Avg Velocity: 1.52 fps Peak Velocity: 1.75 fps Min Velocity: 1.06 fps Avg Flow: 0.268 mgd Peak Flow: 0.450 mgd Min Flow: 0.043 mgd V&A Project No. 13-0336 B - 18 Appendix A DRAFT ---PAGE BREAK--- SITE B Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.04 inches Avg Level: 4.34 in. Peak Level: 12.57 in. Min Level: 0.83 in. Avg Velocity: 1.60 fps Peak Velocity: 2.02 fps Min Velocity: 0.89 fps Avg Flow: 0.324 mgd Peak Flow: 1.232 mgd Min Flow: 0.016 mgd V&A Project No. 13-0336 B - 19 Appendix A DRAFT ---PAGE BREAK--- SITE B Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 3.88 in. Peak Level: 4.59 in. Min Level: 1.36 in. Avg Velocity: 1.39 fps Peak Velocity: 1.60 fps Min Velocity: 0.99 fps Avg Flow: 0.236 mgd Peak Flow: 0.322 mgd Min Flow: 0.038 mgd V&A Project No. 13-0336 B - 20 Appendix A DRAFT ---PAGE BREAK--- SITE B Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.18 inches Avg Level: 3.77 in. Peak Level: 5.33 in. Min Level: 1.72 in. Avg Velocity: 1.49 fps Peak Velocity: 1.85 fps Min Velocity: 1.06 fps Avg Flow: 0.244 mgd Peak Flow: 0.477 mgd Min Flow: 0.060 mgd V&A Project No. 13-0336 B - 21 Appendix A DRAFT ---PAGE BREAK--- SITE B Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 4.05 in. Peak Level: 4.91 in. Min Level: 3.01 in. Avg Velocity: 1.54 fps Peak Velocity: 1.77 fps Min Velocity: 1.30 fps Avg Flow: 0.278 mgd Peak Flow: 0.416 mgd Min Flow: 0.156 mgd V&A Project No. 13-0336 B - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site C MH ID n/a: Off Shoulder of Zeff Road at Crows Landing Road Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site C Data Summary Report C - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE C Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 15 inches Baseline Flow: 0.046 mgd Peak Measured Flow: 0.198 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID n/a: Off Shoulder of Zeff Road at Crows Landing Road Coordinates: 120.9939° W, 37.6157° N V&A Project No. 13-0336 C - 2 Appendix A DRAFT ---PAGE BREAK--- SITE C Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 4.21 inches Avg Period Flow: 0.049 MGal Peak Daily Flow: 0.070 MGal Min Daily Flow: 0.039 MGal V&A Project No. 13-0336 C - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE C Flow Summary: 12/11/2014 to 1/19/2015 0.00 0.05 0.10 0.15 0.20 0.25 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.05 0.10 0.15 0.20 0.25 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.22 inches Avg Flow: 0.049 mgd Peak Flow: 0.198 mgd Min Flow: 0.006 mgd V&A Project No. 13-0336 C - 4 Appendix A DRAFT Site removed mid-study Last data, January 14 ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE C Flow Summary: 1/20/2015 to 3/1/2015 0.00 0.05 0.10 0.15 0.20 0.25 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.05 0.10 0.15 0.20 0.25 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.40 inches Avg Flow: mgd Peak Flow: mgd Min Flow: mgd V&A Project No. 13-0336 C - 5 Appendix A DRAFT Meter was not installed for this time period. This page left intensionally blank. ---PAGE BREAK--- SITE C Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.02 0.04 0.06 0.08 0.10 0.12 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 0.05 mgd Baseline Flow: V&A Project No. 13-0336 C - 6 Appendix A DRAFT ---PAGE BREAK--- SITE C Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Surcharged 18.3 inches over crown Peak Measured Level: 33.3 Peak d/D Ratio: 2.22 Pipe Diameter: 15 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 5 10 15 20 25 30 35 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 11.2 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 5 10 15 20 25 30 35 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 C - 7 Appendix A DRAFT ---PAGE BREAK--- SITE C City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.05 0.10 0.15 0.20 0.25 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.65 inches Event 1 0.00 0.05 0.10 0.15 0.20 0.25 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.65 inches) 0.20 33.30 Peak Flow: PF: Peak Level: mgd in 4.32 d/D Ratio: 2.22 Capacity 0.12 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 20,000 V&A Project No. 13-0336 C - 8 Appendix A DRAFT ---PAGE BREAK--- SITE C City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.05 0.10 0.15 0.20 0.25 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 1.07 inches Event 2 0.00 0.02 0.04 0.06 0.08 0.10 0.12 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 1.07 inches) 0.11 3.41 Peak Flow: PF: Peak Level: mgd in 2.36 d/D Ratio: 0.23 Capacity 0.05 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 2,000 V&A Project No. 13-0336 C - 9 Appendix A DRAFT ---PAGE BREAK--- SITE C Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 Velocity (fps) Vel 0.00 0.05 0.10 0.15 0.20 0.25 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.65 inches Avg Level: 3.74 in. Peak Level: 33.30 in. Min Level: 1.61 in. Avg Velocity: 0.60 fps Peak Velocity: 0.95 fps Min Velocity: 0.09 fps Avg Flow: 0.050 mgd Peak Flow: 0.198 mgd Min Flow: 0.006 mgd V&A Project No. 13-0336 C - 10 Appendix A DRAFT ---PAGE BREAK--- SITE C Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 Velocity (fps) Vel 0.00 0.05 0.10 0.15 0.20 0.25 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.53 inches Avg Level: 2.63 in. Peak Level: 3.41 in. Min Level: 1.75 in. Avg Velocity: 0.65 fps Peak Velocity: 0.97 fps Min Velocity: 0.27 fps Avg Flow: 0.048 mgd Peak Flow: 0.108 mgd Min Flow: 0.009 mgd V&A Project No. 13-0336 C - 11 Appendix A DRAFT ---PAGE BREAK--- SITE C Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 Velocity (fps) Vel 0.00 0.05 0.10 0.15 0.20 0.25 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 2.63 in. Peak Level: 3.47 in. Min Level: 1.69 in. Avg Velocity: 0.64 fps Peak Velocity: 1.01 fps Min Velocity: 0.25 fps Avg Flow: 0.050 mgd Peak Flow: 0.114 mgd Min Flow: 0.008 mgd V&A Project No. 13-0336 C - 12 Appendix A DRAFT ---PAGE BREAK--- SITE C Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 Velocity (fps) Vel 0.00 0.05 0.10 0.15 0.20 0.25 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 2.78 in. Peak Level: 3.76 in. Min Level: 1.84 in. Avg Velocity: 0.68 fps Peak Velocity: 1.05 fps Min Velocity: 0.27 fps Avg Flow: 0.057 mgd Peak Flow: 0.137 mgd Min Flow: 0.009 mgd V&A Project No. 13-0336 C - 13 Appendix A DRAFT ---PAGE BREAK--- SITE C Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 Velocity (fps) Vel 0.00 0.05 0.10 0.15 0.20 0.25 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 2.52 in. Peak Level: 3.28 in. Min Level: 1.53 in. Avg Velocity: 0.61 fps Peak Velocity: 0.93 fps Min Velocity: 0.27 fps Avg Flow: 0.043 mgd Peak Flow: 0.097 mgd Min Flow: 0.006 mgd V&A Project No. 13-0336 C - 14 Appendix A DRAFT ---PAGE BREAK--- SITE C Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 Velocity (fps) Vel 0.00 0.05 0.10 0.15 0.20 0.25 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 2.60 in. Peak Level: 3.47 in. Min Level: 1.68 in. Avg Velocity: 0.64 fps Peak Velocity: 0.93 fps Min Velocity: 0.31 fps Avg Flow: 0.048 mgd Peak Flow: 0.099 mgd Min Flow: 0.010 mgd V&A Project No. 13-0336 C - 15 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site F MH ID 313091610: Sutter Avenue, south of Paradise Road Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site F Data Summary Report F - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE F Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 18 inches Baseline Flow: 0.882 mgd Peak Measured Flow: 2.821 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 313091610: Sutter Avenue, south of Paradise Road Coordinates: 121.0118° W, 37.6271° N V&A Project No. 13-0336 F - 2 Appendix A DRAFT ---PAGE BREAK--- SITE F Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 12/11 12/13 12/15 12/17 12/19 12/21 12/23 12/25 12/27 12/29 12/31 1/2 1/4 1/6 1/8 1/10 1/12 1/14 1/16 1/18 1/20 1/22 1/24 1/26 1/28 1/30 2/1 2/3 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 12/21 12/22 12/23 12/24 12/25 12/26 12/27 12/28 12/29 12/30 12/31 1/1 1/2 1/3 1/4 1/5 1/6 1/7 1/8 1/9 1/10 1/11 1/12 1/13 1/14 1/15 1/16 1/17 1/18 1/19 1/20 1/21 1/22 1/23 1/24 1/25 1/26 1/27 1/28 1/29 1/30 1/31 2/1 2/2 2/3 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 5.51 inches Avg Period Flow: 0.906 MGal Peak Daily Flow: 1.473 MGal Min Daily Flow: 0.715 MGal V&A Project No. 13-0336 F - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE F Flow Summary: 12/11/2014 to 1/19/2015 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.26 inches Avg Flow: 0.921 mgd Peak Flow: 2.821 mgd Min Flow: 0.284 mgd V&A Project No. 13-0336 F - 4 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE F Flow Summary: 1/20/2015 to 3/1/2015 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.26 inches Avg Flow: 0.891 mgd Peak Flow: 2.250 mgd Min Flow: 0.301 mgd V&A Project No. 13-0336 F - 5 Appendix A DRAFT ---PAGE BREAK--- SITE F Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.20 0.40 0.60 0.80 1.00 1.20 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 0.88 mgd Baseline Flow: V&A Project No. 13-0336 F - 6 Appendix A DRAFT ---PAGE BREAK--- SITE F Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Surcharged 16.1 inches over crown Peak Measured Level: 34.1 Peak d/D Ratio: 1.89 Pipe Diameter: 18 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 5 10 15 20 25 30 35 40 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 13.5 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 5 10 15 20 25 30 35 40 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 F - 7 Appendix A DRAFT ---PAGE BREAK--- SITE F City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 1 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 2.68 inches Event 1 0.00 0.50 1.00 1.50 2.00 2.50 3.00 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 1 Detail Graph Storm Event I/I Analysis (Rain = 2.68 inches) 2.82 34.06 Peak Flow: PF: Peak Level: mgd in 3.20 d/D Ratio: 1.89 Capacity 1.84 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 1,187,000 V&A Project No. 13-0336 F - 8 Appendix A DRAFT ---PAGE BREAK--- SITE F City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 2 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 1.01 inches Event 2 0.00 0.50 1.00 1.50 2.00 2.50 12/15 12/16 12/17 12/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 2 Detail Graph Storm Event I/I Analysis (Rain = 1.01 inches) 2.21 11.98 Peak Flow: PF: Peak Level: mgd in 2.51 d/D Ratio: 0.67 Capacity 1.25 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 670,000 V&A Project No. 13-0336 F - 9 Appendix A DRAFT ---PAGE BREAK--- SITE F City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.74 inches Event 3 0.00 0.50 1.00 1.50 2.00 2.50 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.74 inches) 2.25 13.25 Peak Flow: PF: Peak Level: mgd in 2.55 d/D Ratio: 0.74 Capacity 1.28 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 209,000 V&A Project No. 13-0336 F - 10 Appendix A DRAFT ---PAGE BREAK--- SITE F Weekly Level, Velocity and Flow Hydrographs 12/8/2014 to 12/15/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 35 40 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 12/8 12/9 12/10 12/11 12/12 12/13 12/14 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 2.68 inches Avg Level: 8.69 in. Peak Level: 34.06 in. Min Level: 5.10 in. Avg Velocity: 2.44 fps Peak Velocity: 2.80 fps Min Velocity: 1.54 fps Avg Flow: 1.177 mgd Peak Flow: 2.821 mgd Min Flow: 0.603 mgd V&A Project No. 13-0336 F - 11 Appendix A DRAFT ---PAGE BREAK--- SITE F Weekly Level, Velocity and Flow Hydrographs 12/15/2014 to 12/22/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 12/15 12/16 12/17 12/18 12/19 12/20 12/21 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.51 inches Avg Level: 6.80 in. Peak Level: 11.98 in. Min Level: 4.61 in. Avg Velocity: 2.53 fps Peak Velocity: 2.92 fps Min Velocity: 2.07 fps Avg Flow: 1.009 mgd Peak Flow: 2.210 mgd Min Flow: 0.489 mgd V&A Project No. 13-0336 F - 12 Appendix A DRAFT ---PAGE BREAK--- SITE F Weekly Level, Velocity and Flow Hydrographs 12/22/2014 to 12/29/2014 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 12/22 12/23 12/24 12/25 12/26 12/27 12/28 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.04 inches Avg Level: 6.08 in. Peak Level: 7.63 in. Min Level: 3.69 in. Avg Velocity: 2.42 fps Peak Velocity: 2.72 fps Min Velocity: 1.63 fps Avg Flow: 0.829 mgd Peak Flow: 1.162 mgd Min Flow: 0.284 mgd V&A Project No. 13-0336 F - 13 Appendix A DRAFT ---PAGE BREAK--- SITE F Weekly Level, Velocity and Flow Hydrographs 12/29/2014 to 1/5/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 12/29 12/30 12/31 1/1 1/2 1/3 1/4 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 6.28 in. Peak Level: 7.90 in. Min Level: 4.09 in. Avg Velocity: 2.35 fps Peak Velocity: 2.56 fps Min Velocity: 1.62 fps Avg Flow: 0.843 mgd Peak Flow: 1.173 mgd Min Flow: 0.319 mgd V&A Project No. 13-0336 F - 14 Appendix A DRAFT ---PAGE BREAK--- SITE F Weekly Level, Velocity and Flow Hydrographs 1/5/2015 to 1/12/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 1/5 1/6 1/7 1/8 1/9 1/10 1/11 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 6.59 in. Peak Level: 7.99 in. Min Level: 4.54 in. Avg Velocity: 2.35 fps Peak Velocity: 2.57 fps Min Velocity: 1.91 fps Avg Flow: 0.895 mgd Peak Flow: 1.214 mgd Min Flow: 0.444 mgd V&A Project No. 13-0336 F - 15 Appendix A DRAFT ---PAGE BREAK--- SITE F Weekly Level, Velocity and Flow Hydrographs 1/12/2015 to 1/19/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 1/12 1/13 1/14 1/15 1/16 1/17 1/18 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 6.60 in. Peak Level: 8.20 in. Min Level: 3.81 in. Avg Velocity: 2.32 fps Peak Velocity: 2.61 fps Min Velocity: 1.66 fps Avg Flow: 0.887 mgd Peak Flow: 1.226 mgd Min Flow: 0.294 mgd V&A Project No. 13-0336 F - 16 Appendix A DRAFT ---PAGE BREAK--- SITE F Weekly Level, Velocity and Flow Hydrographs 1/19/2015 to 1/26/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 1/19 1/20 1/21 1/22 1/23 1/24 1/25 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.03 inches Avg Level: 6.49 in. Peak Level: 8.62 in. Min Level: 4.21 in. Avg Velocity: 2.29 fps Peak Velocity: 2.67 fps Min Velocity: 1.73 fps Avg Flow: 0.858 mgd Peak Flow: 1.294 mgd Min Flow: 0.384 mgd V&A Project No. 13-0336 F - 17 Appendix A DRAFT ---PAGE BREAK--- SITE F Weekly Level, Velocity and Flow Hydrographs 1/26/2015 to 2/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 1/26 1/27 1/28 1/29 1/30 1/31 2/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.01 inches Avg Level: 6.75 in. Peak Level: 8.56 in. Min Level: 3.95 in. Avg Velocity: 2.32 fps Peak Velocity: 2.62 fps Min Velocity: 1.62 fps Avg Flow: 0.913 mgd Peak Flow: 1.266 mgd Min Flow: 0.301 mgd V&A Project No. 13-0336 F - 18 Appendix A DRAFT ---PAGE BREAK--- SITE F Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.05 inches Avg Level: 6.86 in. Peak Level: 13.25 in. Min Level: 3.96 in. Avg Velocity: 2.33 fps Peak Velocity: 2.72 fps Min Velocity: 1.64 fps Avg Flow: 0.942 mgd Peak Flow: 2.250 mgd Min Flow: 0.305 mgd V&A Project No. 13-0336 F - 19 Appendix A DRAFT ---PAGE BREAK--- SITE F Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 6.54 in. Peak Level: 8.01 in. Min Level: 4.40 in. Avg Velocity: 2.34 fps Peak Velocity: 2.59 fps Min Velocity: 1.81 fps Avg Flow: 0.883 mgd Peak Flow: 1.185 mgd Min Flow: 0.393 mgd V&A Project No. 13-0336 F - 20 Appendix A DRAFT ---PAGE BREAK--- SITE F Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.18 inches Avg Level: 6.46 in. Peak Level: 8.42 in. Min Level: 3.98 in. Avg Velocity: 2.29 fps Peak Velocity: 2.52 fps Min Velocity: 1.63 fps Avg Flow: 0.853 mgd Peak Flow: 1.236 mgd Min Flow: 0.306 mgd V&A Project No. 13-0336 F - 21 Appendix A DRAFT ---PAGE BREAK--- SITE F Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 2 4 6 8 10 12 14 16 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 6.67 in. Peak Level: 8.03 in. Min Level: 5.25 in. Avg Velocity: 2.31 fps Peak Velocity: 2.54 fps Min Velocity: 2.04 fps Avg Flow: 0.895 mgd Peak Flow: 1.192 mgd Min Flow: 0.584 mgd V&A Project No. 13-0336 F - 22 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site G MH ID 83091308: Dirt road in empty field, south of Tuolumne Boulevard and S. 7th Street Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site G Data Summary Report G - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE G Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 48 inches Baseline Flow: 0.677 mgd Peak Measured Flow: 6.730 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 83091308: Dirt road in empty field, south of Tuolumne Boulevard and S. 7th Street Coordinates: 120.9954° W, 37.6281° N V&A Project No. 13-0336 G - 2 Appendix A DRAFT ---PAGE BREAK--- SITE G Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2/5 2/7 2/9 2/11 2/13 2/15 2/17 2/19 2/21 2/23 2/25 2/27 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 1.35 inches Avg Period Flow: 0.948 MGal Peak Daily Flow: 1.646 MGal Min Daily Flow: 0.133 MGal V&A Project No. 13-0336 G - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE G Flow Summary: 12/11/2014 to 1/19/2015 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 3.91 inches Avg Flow: mgd Peak Flow: mgd Min Flow: mgd V&A Project No. 13-0336 G - 4 Appendix A DRAFT Meter was not installed for this time period. This page left intensionally blank. ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE G Flow Summary: 1/20/2015 to 3/1/2015 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.38 inches Avg Flow: 0.948 mgd Peak Flow: 6.730 mgd Min Flow: 0.008 mgd V&A Project No. 13-0336 G - 5 Appendix A DRAFT New site established and installed mid-study. First day of data: February 5, 2015 ---PAGE BREAK--- SITE G Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 0.68 mgd Baseline Flow: V&A Project No. 13-0336 G - 6 Appendix A DRAFT ---PAGE BREAK--- SITE G Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 19.6 Peak d/D Ratio: 0.41 Pipe Diameter: 48 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 10 20 30 40 50 60 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 36.0 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 10 20 30 40 50 60 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 G - 7 Appendix A DRAFT ---PAGE BREAK--- SITE G City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.72 inches Event 3 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.72 inches) 6.73 19.57 Peak Flow: PF: Peak Level: mgd in 9.94 d/D Ratio: 0.41 Capacity 6.25 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 1,169,000 V&A Project No. 13-0336 G - 8 Appendix A DRAFT ---PAGE BREAK--- SITE G Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.09 inches Avg Level: 7.22 in. Peak Level: 19.57 in. Min Level: 2.21 in. Avg Velocity: 1.33 fps Peak Velocity: 2.32 fps Min Velocity: 0.26 fps Avg Flow: 1.182 mgd Peak Flow: 6.730 mgd Min Flow: 0.035 mgd V&A Project No. 13-0336 G - 9 Appendix A DRAFT ---PAGE BREAK--- SITE G Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 6.72 in. Peak Level: 10.88 in. Min Level: 2.06 in. Avg Velocity: 1.20 fps Peak Velocity: 1.96 fps Min Velocity: 0.06 fps Avg Flow: 0.963 mgd Peak Flow: 2.533 mgd Min Flow: 0.008 mgd V&A Project No. 13-0336 G - 10 Appendix A DRAFT ---PAGE BREAK--- SITE G Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.26 inches Avg Level: 6.25 in. Peak Level: 13.93 in. Min Level: 1.89 in. Avg Velocity: 1.13 fps Peak Velocity: 1.99 fps Min Velocity: 0.13 fps Avg Flow: 0.842 mgd Peak Flow: 3.724 mgd Min Flow: 0.017 mgd V&A Project No. 13-0336 G - 11 Appendix A DRAFT ---PAGE BREAK--- SITE G Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 30 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 6.57 in. Peak Level: 10.94 in. Min Level: 1.66 in. Avg Velocity: 1.18 fps Peak Velocity: 1.77 fps Min Velocity: 0.12 fps Avg Flow: 0.907 mgd Peak Flow: 2.377 mgd Min Flow: 0.011 mgd V&A Project No. 13-0336 G - 12 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Monitoring Site: Location: Site H MH ID 193090812: W. Roseburg Avenue, west of Del Rey Avenue Temporary Monitoring: December, 2014 through March, 2015 Sanitary Sewer Flow Monitoring City of Modesto Vicinity Map: Site H Data Summary Report H - 1 V&A Project No. 13-0336 Appendix A DRAFT ---PAGE BREAK--- SITE H Site Information City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Pipe Diameter: 24 inches Baseline Flow: 0.410 mgd Peak Measured Flow: 1.946 mgd Street View Satellite Map Plan View Flow Sketch Location: MH ID 193090812: W. Roseburg Avenue, west of Del Rey Avenue Coordinates: 121.0149° W, 37.6604° N V&A Project No. 13-0336 H - 2 Appendix A DRAFT ---PAGE BREAK--- SITE H Period Flow Summary: Daily Flow Totals City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.10 0.20 0.30 0.40 0.50 0.60 2/4 2/6 2/8 2/10 2/12 2/14 2/16 2/18 2/20 2/22 2/24 2/26 2/28 Flow (MGal) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Rainfall (in/day) 0.00 0.10 0.20 0.30 0.40 0.50 0.60 2/4 2/6 2/8 2/10 2/12 2/14 2/16 2/18 2/20 2/22 2/24 2/26 2/28 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 0.00 0.10 0.20 0.30 0.40 0.50 0.60 2/4 2/5 2/6 2/7 2/8 2/9 2/10 2/11 2/12 2/13 2/14 2/15 2/16 2/17 2/18 2/19 2/20 2/21 2/22 2/23 2/24 2/25 2/26 2/27 2/28 3/1 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 Total Period Rainfall: 1.24 inches Avg Period Flow: 0.447 MGal Peak Daily Flow: 0.557 MGal Min Daily Flow: 0.401 MGal V&A Project No. 13-0336 H - 3 Appendix A DRAFT ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE H Flow Summary: 12/11/2014 to 1/19/2015 0.00 0.50 1.00 1.50 2.00 2.50 Dec 11 (Thu) Dec 12 (Fri) Dec 13 (Sat) Dec 14 (Sun) Dec 15 (Mon) Dec 16 (Tue) Dec 17 (Wed) Dec 18 (Thu) Dec 19 (Fri) Dec 20 (Sat) Dec 21 (Sun) Dec 22 (Mon) Dec 23 (Tue) Dec 24 (Wed) Dec 25 (Thu) Dec 26 (Fri) Dec 27 (Sat) Dec 28 (Sun) Dec 29 (Mon) Dec 30 (Tue) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 Dec 31 (Wed) Jan 1 (Thu) Jan 2 (Fri) Jan 3 (Sat) Jan 4 (Sun) Jan 5 (Mon) Jan 6 (Tue) Jan 7 (Wed) Jan 8 (Thu) Jan 9 (Fri) Jan 10 (Sat) Jan 11 (Sun) Jan 12 (Mon) Jan 13 (Tue) Jan 14 (Wed) Jan 15 (Thu) Jan 16 (Fri) Jan 17 (Sat) Jan 18 (Sun) Jan 19 (Mon) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 4.24 inches Avg Flow: mgd Peak Flow: mgd Min Flow: mgd V&A Project No. 13-0336 H - 4 Appendix A DRAFT Meter was not installed for this time period. This page left intensionally blank. ---PAGE BREAK--- City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study SITE H Flow Summary: 1/20/2015 to 3/1/2015 0.00 0.50 1.00 1.50 2.00 2.50 Jan 20 (Tue) Jan 21 (Wed) Jan 22 (Thu) Jan 23 (Fri) Jan 24 (Sat) Jan 25 (Sun) Jan 26 (Mon) Jan 27 (Tue) Jan 28 (Wed) Jan 29 (Thu) Jan 30 (Fri) Jan 31 (Sat) Feb 1 (Sun) Feb 2 (Mon) Feb 3 (Tue) Feb 4 (Wed) Feb 5 (Thu) Feb 6 (Fri) Feb 7 (Sat) Feb 8 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Rain Flow BLFlow 0.00 0.50 1.00 1.50 2.00 2.50 Feb 9 (Mon) Feb 10 (Tue) Feb 11 (Wed) Feb 12 (Thu) Feb 13 (Fri) Feb 14 (Sat) Feb 15 (Sun) Feb 16 (Mon) Feb 17 (Tue) Feb 18 (Wed) Feb 19 (Thu) Feb 20 (Fri) Feb 21 (Sat) Feb 22 (Sun) Feb 23 (Mon) Feb 24 (Tue) Feb 25 (Wed) Feb 26 (Thu) Feb 27 (Fri) Feb 28 (Sat) Mar 1 (Sun) Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rainfall (in/hr) Total Period Rainfall: 1.27 inches Avg Flow: 0.447 mgd Peak Flow: 1.946 mgd Min Flow: 0.129 mgd V&A Project No. 13-0336 H - 5 Appendix A DRAFT New site established and installed mid-study. First day of data: February 4, 2015 ---PAGE BREAK--- SITE H Baseline Flow Hydrographs City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0:00 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00 20:00 21:00 22:00 23:00 Flow (mgd) Mon-Thurs Friday Saturday Sunday Time of Day 0.41 mgd Baseline Flow: V&A Project No. 13-0336 H - 6 Appendix A DRAFT ---PAGE BREAK--- SITE H Site Capacity and Surcharge Summary City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study Peak Measured Level: 12.4 Peak d/D Ratio: 0.52 Pipe Diameter: 24 inches inches Realtime Flow Levels with Rainfall Data over Monitoring Period 0 5 10 15 20 25 30 12/11 12/12 12/13 12/14 12/15 12/16 12/17 12/18 12/19 12/20 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) 18.0 Dry Weather Design Threshold Level: inches Diameter 75% Threshold 0 5 10 15 20 25 30 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 02/21 02/22 02/23 02/24 Level (in) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Rain (in) V&A Project No. 13-0336 H - 7 Appendix A DRAFT ---PAGE BREAK--- SITE H City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study I/I Summary: Event 3 Baseline and Realtime Flows with Rainfall Data over Monitoring Period 0.00 0.50 1.00 1.50 2.00 2.50 02/01 02/02 02/03 02/04 02/05 02/06 02/07 02/08 02/09 02/10 02/11 02/12 02/13 02/14 02/15 02/16 02/17 02/18 02/19 02/20 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rainfall: 0.73 inches Event 3 0.00 0.50 1.00 1.50 2.00 2.50 02/08 02/09 02/10 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Event 3 Detail Graph Storm Event I/I Analysis (Rain = 0.73 inches) 1.95 12.36 Peak Flow: PF: Peak Level: mgd in 4.75 d/D Ratio: 0.52 Capacity 1.45 Peak I/I Rate: mgd Inflow / Infiltration Total I/I: gallons 121,000 V&A Project No. 13-0336 H - 8 Appendix A DRAFT ---PAGE BREAK--- SITE H Weekly Level, Velocity and Flow Hydrographs 2/2/2015 to 2/9/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 2/2 2/3 2/4 2/5 2/6 2/7 2/8 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 1.06 inches Avg Level: 5.69 in. Peak Level: 12.36 in. Min Level: 3.75 in. Avg Velocity: 1.20 fps Peak Velocity: 2.02 fps Min Velocity: 0.64 fps Avg Flow: 0.465 mgd Peak Flow: 1.946 mgd Min Flow: 0.131 mgd V&A Project No. 13-0336 H - 9 Appendix A DRAFT ---PAGE BREAK--- SITE H Weekly Level, Velocity and Flow Hydrographs 2/9/2015 to 2/16/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 2/9 2/10 2/11 2/12 2/13 2/14 2/15 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 5.67 in. Peak Level: 7.73 in. Min Level: 3.98 in. Avg Velocity: 1.10 fps Peak Velocity: 1.56 fps Min Velocity: 0.53 fps Avg Flow: 0.423 mgd Peak Flow: 0.761 mgd Min Flow: 0.129 mgd V&A Project No. 13-0336 H - 10 Appendix A DRAFT ---PAGE BREAK--- SITE H Weekly Level, Velocity and Flow Hydrographs 2/16/2015 to 2/23/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 2/16 2/17 2/18 2/19 2/20 2/21 2/22 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Total Weekly Rainfall: 0.18 inches Avg Level: 5.87 in. Peak Level: 7.61 in. Min Level: 4.43 in. Avg Velocity: 1.09 fps Peak Velocity: 1.62 fps Min Velocity: 0.53 fps Avg Flow: 0.437 mgd Peak Flow: 0.891 mgd Min Flow: 0.141 mgd V&A Project No. 13-0336 H - 11 Appendix A DRAFT ---PAGE BREAK--- SITE H Weekly Level, Velocity and Flow Hydrographs 2/23/2015 to 3/2/2015 City of Modesto Sewer Flow Monitoring & Inflow/Infiltration Study 0 5 10 15 20 25 Mon Tue Wed Thu Fri Sat Sun Level (in) Lev 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Velocity (fps) Vel 0.0 0.5 1.0 1.5 2.0 2.5 2/23 2/24 2/25 2/26 2/27 2/28 3/1 Flow (mgd) 0.0 0.2 0.4 0.6 0.8 1.0 1.2 Rain (in/hr) Rain Flow BLFlow Avg Level: 6.02 in. Peak Level: 7.25 in. Min Level: 4.45 in. Avg Velocity: 1.14 fps Peak Velocity: 1.56 fps Min Velocity: 0.53 fps Avg Flow: 0.470 mgd Peak Flow: 0.787 mgd Min Flow: 0.155 mgd V&A Project No. 13-0336 H - 12 Appendix A DRAFT ---PAGE BREAK---