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McRedmond Regional Water Quality Facility Final Design Report KPG July 2008 ---PAGE BREAK--- TABLE OF CONTENTS 1. Project Overview 1 2. Project Regulatory Requirements 1 3. Contributing Area 1 4. Design Flows & Conveyance System 2 5. Treatment Facility 3 LIST OF APPENDICES A. WWHM and XP-STORM Output B. Pipe Capacity Summaries C. King County Soils Map D. Basin Maps • City Planning Map (from City Regional Facility Analysis, February 2006) • Bear Creek Parkway Proposed Basin Map (KPG, May 2007) E. McRedmond EcoStorm-Plus Drainage Analysis (Royal Environmental Systems, March 2007) F. Record Construction Drawings ---PAGE BREAK--- 0453_McRedmond Park Regional Water Quality Facility Stormwater Design Report 1 1. Project Overview This report summarizes the stormwater design elements for the McRedmond Park Regional Water Quality Facility (WQF). This documents the assumptions and criteria used for the design of this facility. This analysis uses the findings from the KPG Technical Memo, dated February 22, 2006, which summarizes the water quality treatment options associated with the Bear Creek Parkway & 161st Avenue NE Roadway Extension (BCP) Project and the Final Drainage Report for the BCP Project. The findings from the City Center Basin Planning – Regional Facility Analysis, dated February 24, 2006, prepared by Stephen Hitch was also incorporated into the design of this Regional WQF. 2. Project Regulatory Requirements The stormwater treatment requirements for this project are based on the City of Redmond Clearing, Grading and Stormwater Management Technical Notebook (Technical Notebook), Issue 5 effective January 2007. The Technical Notebook defines how the Washington Department of Ecology (Ecology) 2005 Stormwater Management Manual for Western Washington (2005 DOE Manual) will be implemented within the City. For the conveyance design, the Technical Notebook references the latest edition of the Washington Department of Transportation Hydraulic Manual (2005 WSDOT Manual). 3. Contributing Area The area draining to the proposed McRedmond Park Regional WQF has been revised from the analysis defined by the February 2006 KPG Technical Memo. This area, designated as Basin A in the February 2006 KPG Memo, had an estimated contributing area of 15.48 acres. The new area, per the Final BCP Drainage Report is 15.01, based on the final drainage collection area directed to the McRedmond WQF. Under existing conditions this area consists of mostly commercial, industrial and roadway areas. The soils within this area are predominately Earlmont Silt Loam (Ea) per the Soil Survey of King County compiled by the National Resource Conservation Service (see Appendix Earlmont Soils are classified as Type C Hydrologic Soils per the 2005 DOE Manual. Basin A is within the City Watershed #540 per the City of Redmond Watershed Map dated April 11, 2005. The associated areas of Basin A and Watershed #540 are included in Appendix D. The area of Watershed #540, with 21.95 acres, was used for the preliminary sizing and cost analysis summaries in the City’s February 2006 Regional Facility Analysis. The contributing area of Basin A, with ---PAGE BREAK--- 0453_McRedmond Park Regional Water Quality Facility Stormwater Design Report 2 15.01 acres, has been used for the final sizing of the McRedmond Park facility because not all of the area within the City Watershed #540 will drain to the proposed facility. Most of the area within the McRedmond Park, along the Sammamish River, is of the proposed facility. In addition, a portion of the former King County Shop site and adjacent railroad right-of-way, included in Basin #540, will drain to the proposed Leary Way regional facility, within City Watershed #510 per the Final Drainage Report for the BCP Project. The Leary Way WQF is being constructed as part of the Bear Creek Parkway & 161st Avenue NE Roadway Extension Project. 4. Design Flows & Conveyance System The water quality treatment flows for the McRedmond Park WQF are 1.2 cfs, per the Western Washington Hydrologic Model (WWHM) as required in the 2005 DOE Manual. The WWHM model output is included in Appendix A. The water quality treatment flow rate is based on the Water Quality Off-line target flow with the 15 minute adjustment. The contributing area for this flow is the 15.01 acres from Basin A with the Developed Land Use proportions determined in the City’s Regional Facility Analysis of 40% Roof, 50% Roads and 10% Landscape areas. The 2005 WSDOT Manual, referenced through the City’s Technical Notebook, recommends the Rational Method or Santa Barbara Urban Hydrograph (SBUH) Method for designing the conveyance system. The peak design flow for the conveyance and the water quality facility high-flow bypass are based the SBUH Method using the XP-STORM routing program. The SBUH model was used to verify the hydraulic grade line requirements of the Technical Notebook at the 10, 25 and 50-year storm events (See XP-STORM Output in Appendix The 24- hour rainfall intensity of 2.8”, 3.2”, 3.5” was used for the 10, 25, and 50-year storm events, per the Isopluvial Maps from the King County Surface Water Drainage Manual, 2005 and NOAA Atlas 2, Volume IX,1973. The peak design flows entering the McRedmond WQF are 9.0, 10.3, and 11.3 cfs for the three design storm events respectively. The full-flow capacity of the 24” PVC pipe, of the WQF bypass, at the minimum grade of 0.25%, per the Technical Notebook, will convey 13.37 cfs, which exceeds the peak 50-year flow of 11.3 cfs. The full-flow pipe capacity using Manning’s Equation is included in Appendix B. The Technical Notebook requires that pipe sizing shall convey the 10-year peak flow. Per the XP-STORM Model, both the 10-year and 25-year storms, 9.0 cfs and 10.3 cfs, are below the conveyance capacity. Upstream of the drainage connection from the proposed River Park Development the 18” pipe at minimum grade of 0.25% has a full-flow capacity of 6.21 cfs The 50-year peak flow contributing to this 18” stormwater main is 6.0 cfs. The McRedmond Park Regional WQF connects to an existing outfall into the Sammamish River along the south side of the Redmond Way Bridge. This 30” ---PAGE BREAK--- 0453_McRedmond Park Regional Water Quality Facility Stormwater Design Report 3 outfall, under the the Sammamish River trail, had previously been plugged approximately 30-ft from the River. An existing catch basin along the paved river trail connected to this outfall and has been reconnected to the new conveyance system. The stormwater conveyance system within City Watershed #540 previously connected to the 30” outfall pipe on the north side of Redmond Way, which has existing capacity issues per the City’s Regional Facilities Analysis, 2006. 5. Treatment Facility At the request of the City the Stormwater Treatment Facility for this project was selected from venders currently listed with Pilot Use Level Designation (PULD), by the Washington Department of Ecology. Since the treatment flow rates through this type media vault facility has not been approved by Ecology, the City has requested that the proposed WQF be designed to double the treatment efficiency recommended by the manufacture. The choosen facility, EcoStorm- Plus, by Royal Environmental Systems, has have been designed for a treatment capacity of at least 2.4 cfs, twice the required treatment flow rate of 1.2 cfs per the WWHM model. Onsite stormwater analysis for the McRedmond Regional WQF is being conducted separately by the City to evaluate the effectiveness of the EcoStorm- Plus unit to meet Basic and Enhanced Treatment requirements per the 2005 DOE Manual. The adjacent property, River Park Development, is planning to connect some roof top areas to the clean water bypass provided at Catch Basin No.14, See Record Drawings Appendix F. The clean water flow will be diverted around the water quality filters. ---PAGE BREAK--- 0453_McRedmond Park Regional Water Quality Facility Stormwater Design Report APPENDIX A WWHM and XP-STORM Output ---PAGE BREAK--- WESTERN WASHINGTON HYDROLOGY MODEL V2 PROJECT REPORT Project Name: BCP Basin A 100% - McRedmond Regional WQ Facility contributing area (Redmond_MRWQ_A90) Site Address: Bear Creek Parkway City : Redmond Report Date : 11/19/2007 Gage : Seatac Data Start : 1948 Data End : 1998 Precip Scale: 1.00 PREDEVELOPED LAND USE Basin : Basin A (540) Flows To : Point of Compliance GroundWater: No Land Use Acres OUTWASH FOREST: 15.01 DEVELOPED LAND USE Basin : City Center 540 Flows To : Point of Compliance GroundWater: No Land Use Acres OUTWASH GRASS: 2.08 IMPERVIOUS: 12.93 RCHRES (POND) INFORMATION ANALYSIS RESULTS Flow Frequency Return Periods for Predeveloped Return Period Flow(cfs) 2 year 0.003126 5 year 0.004414 10 year 0.005388 25 year 0.006763 50 year 0.007898 100 year 0.009131 ---PAGE BREAK--- Flow Frequency Return Periods for Developed Unmitigated Return Period Flow(cfs) 2 year 3.238099 5 year 3.943236 10 year 4.399539 25 year 4.969388 50 year 5.391225 100 year 5.812163 Flow Frequency Return Periods for Developed Mitigated Return Period Flow(cfs) 2 year 3.238099 5 year 3.943236 10 year 4.399539 25 year 4.969388 50 year 5.391225 100 year 5.812163 The development has an increase in flow durations from 1/2 predeveloped 2 year flow to the 2 year flow or more than a 10% increase from the 2 year to the 50 year flow. The Development Has an increase in flow durations for more than 50% of the flows from the 2 year to the 50 year flow. Water Quality BMP Flow and Volume. On-line facility volume: 1.5471 acre-feet On-line facility target flow: 1.8214 cfs. Adjusted for 15 min: 2.0582 cfs. Off-line facility target flow: 1.0491 cfs. Adjusted for 15 min: 1.1855 cfs. program and accompanying documentation as provided 'as-is' without warranty of any kind. The entire risk regarding the performance and results of this program is assumed by the user. AQUA TERRA Consultants and the Washington State Department of Ecology disclaims all warranties, either expressed or implied, including but not limited to implied warranties of program and accompanying documentation. In no event shall AQUA TERRA Consultants and/or the Washington State Department of Ecology be liable for any damages whatsoever (including without limitation to damages for loss of business profits, loss of business information, business interruption, and the like) arising out of the user of, or inability to use this program even if AQUA TERRA Consultants or the Washington State Department of Ecology has been advised of the possibility of such damages. ---PAGE BREAK--- PROPOSED PIPE DESIGN - BASIN A XP-Storm Output Data (River Elevation @ OHWM = 22.0) Conduit Name Upstream Catch Basin Number Length (ft) Conduit Slope Diameter (ft) Design Full Flow (cfs) Sub-basin SBUH Max Flow (cfs) Design Full Flow (cfs) Sub-basin SBUH Max Flow (cfs) Design Full Flow (cfs) Sub-basin SBUH Max Flow (cfs) LA30 A30 50.00 0.50 1.00 2.98 0.94 2.98 1.12 2.98 1.25 LA31 A31 180.00 1.50 1.00 5.16 0.93 5.16 1.12 5.16 1.25 LA32 A32 8.00 1.00 1.00 4.21 0.93 4.21 1.11 4.21 1.38 LA33 A33 85.00 2.00 1.00 5.95 0.93 5.95 1.11 5.95 1.53 LA34c A34c 45.00 0.62 1.00 3.32 0.79 3.32 0.90 3.32 0.99 LA34b A34b 80.00 0.75 1.00 3.65 1.90 3.65 2.14 3.65 2.36 LA34 A34 86.00 0.88 1.00 3.69 2.84 3.69 3.31 3.69 3.60 LA35 A35 125.00 1.40 1.00 5.12 3.83 5.12 4.36 5.12 4.79 LA36 A36 102.00 1.42 1.00 5.02 3.82 5.02 4.38 5.02 4.81 LA37 A37 47.00 1.49 1.00 5.14 4.70 5.14 5.37 5.14 5.90 LA38 A38 152.00 0.68 1.50 10.27 4.70 10.27 5.38 10.27 5.91 LA39 A39 5.70 1.05 1.50 12.74 4.72 12.74 5.39 12.74 5.94 LA40 A40 38.00 0.26 1.50 6.37 4.74 6.37 5.42 6.37 5.97 LA41 A41 7.00 0.29 1.50 6.64 4.76 6.64 5.44 6.64 6.00 LA41A A41A 46.00 0.26 1.50 6.34 4.78 6.34 5.47 6.34 6.03 LA42 A42 100.00 0.25 1.50 6.21 8.71 6.21 9.94 6.21 10.91 LA43 A43 85.00 0.26 1.50 6.32 9.01 6.32 10.30 6.32 11.32 LA44 A44 22.00 0.27 1.50 6.48 9.01 6.48 10.31 6.48 11.32 LA45 A45 49.00 5.71 2.00 63.91 9.01 63.91 10.31 63.91 11.32 LA46 A46 193.00 0.50 2.00 18.95 9.01 18.95 10.31 18.95 11.32 LA47 A47 71.00 0.51 2.00 19.04 9.01 19.04 10.30 19.04 11.32 LA48 A48 25.00 0.52 2.00 19.28 9.76 19.28 11.24 19.28 12.40 25 year Storm 50 year Storm * Data taken from XP Storm output "E4", "Pipe Data", and "E10" XP tables in files 0453BCP10PROP16.xp, 0453BCP25PROP16.xp, 0453BCP50PROP16.xp). Changes in SBUH Flow represent Sub-basin input locations. 10 year Storm P:\0453 - REDMOND - BEAR CREEK PARKWAY\B0453 - PROJECT PRODUCTION\B3 0453 Data & Reports\0453 Drainage\0453 Drainage Report\100% Drainage Report\ XP Model Output.xls Basin A - XP output (prop16) KPG, Inc. ---PAGE BREAK--- XP-Storm Output Data 10 Year Storm (River Elevation @ OHWM = 22.0) Catch Basin Number Node Name Ground Elevation (ft) Max Water Elevation (ft) Freeboard (ft) Minimum Required Freeboard A30 A30 41.27 38.20 3.07 1.00 A31 A31 41.27 37.83 3.44 1.00 A32 A32 38.36 35.20 3.16 1.00 A33 A33 38.49 35.03 3.46 1.00 A34c A34c 36.88 34.33 2.55 1.00 A34b A34b 36.89 34.23 2.66 1.00 A34 A34 37.57 33.78 3.80 1.00 A35 A35 36.40 33.09 3.31 1.00 A36 A36 34.61 31.32 3.29 1.00 A37 A37 32.96 30.21 2.75 1.00 A38 A38 32.47 29.46 3.01 1.00 A39 A39 31.20 29.20 2.01 1.00 A40 A40 31.00 29.14 1.86 1.00 A41 A41 31.04 29.05 1.99 1.00 A41A A41A 31.52 28.99 2.53 1.00 A42 A42 34.07 28.88 5.19 1.00 A43 A43 36.77 28.24 8.53 1.00 A44 A44 32.78 27.68 5.10 1.00 A45 A45 33.06 27.38 5.68 1.00 A46 A46 33.75 25.10 8.65 1.00 A47 A47 37.66 24.24 13.42 1.00 A48 A48 31.73 23.91 7.82 1.00 A49 A49 30.87 23.11 7.76 1.00 * Data taken from XP Storm output "E8/E9" XP tables in files 0453BCP10PROP16.xp) Minimum Required Freeboard based on Table 8.1, City of Redmond Technical Notebook, Issue # 5, 2007. P:\0453 - REDMOND - BEAR CREEK PARKWAY\B0453 - PROJECT PRODUCTION\B3 0453 Data & Reports\0453 Drainage\0453 Drainage Report\100% Drainage Report\ XP Model Output.xls Basin A-Node Freeboard (prop16) KPG, Inc. ---PAGE BREAK--- XP-Storm Output Data 25 Year Storm (River Elevation @ OHWM = 22.0) Catch Basin Number Node Name Ground Elevation (ft) Max Water Elevation (ft) Freeboard (ft) Minimum Required Freeboard A30 A30 41.27 38.24 3.03 0.50 A31 A31 41.27 37.86 3.41 0.50 A32 A32 38.36 35.26 3.10 0.50 A33 A33 38.49 35.12 3.37 0.50 A34c A34c 36.88 34.85 2.03 0.50 A34b A34b 36.89 34.83 2.06 0.50 A34 A34 37.57 34.58 2.99 0.50 A35 A35 36.40 33.97 2.43 0.50 A36 A36 34.61 32.46 2.16 0.50 A37 A37 32.96 31.19 1.77 0.50 A38 A38 32.47 30.15 2.32 0.50 A39 A39 31.20 29.81 1.39 0.50 A40 A40 31.00 29.74 1.26 0.50 A41 A41 31.04 29.61 1.43 0.50 A41A A41A 31.52 29.55 1.98 0.50 A42 A42 34.07 29.40 4.67 0.50 A43 A43 36.77 28.57 8.20 0.50 A44 A44 32.78 27.79 4.99 0.50 A45 A45 33.06 27.43 5.63 0.50 A46 A46 33.75 25.20 8.55 0.50 A47 A47 37.66 24.35 13.31 0.50 A48 A48 31.73 24.02 7.71 0.50 A49 A49 30.87 23.20 7.67 0.50 * Data taken from XP Storm output "E8/E9" XP tables in files 0453BCP25PROP16.xp) Minimum Required Freeboard based on Table 8.1, City of Redmond Technical Notebook, Issue # 5, 2007. P:\0453 - REDMOND - BEAR CREEK PARKWAY\B0453 - PROJECT PRODUCTION\B3 0453 Data & Reports\0453 Drainage\0453 Drainage Report\100% Drainage Report\ XP Model Output.xls Basin A-Node Freeboard (prop16) KPG, Inc. ---PAGE BREAK--- XP-Storm Output Data 50 Year Storm (River Elevation @ OHWM = 22.0) Catch Basin Number Node Name Ground Elevation (ft) Max Water Elevation (ft) Freeboard (ft) Minimum Required Freeboard A30 A30 41.27 38.27 3.00 0.00 A31 A31 41.27 37.89 3.38 0.00 A32 A32 38.36 36.37 1.99 0.00 A33 A33 38.49 36.35 2.14 0.00 A34c A34c 36.88 36.59 0.29 0.00 A34b A34b 36.89 36.56 0.33 0.00 A34 A34 37.57 36.26 1.31 0.00 A35 A35 36.40 35.54 0.86 0.00 A36 A36 34.61 33.75 0.86 0.00 A37 A37 32.96 32.24 0.72 0.00 A38 A38 32.47 31.00 1.47 0.00 A39 A39 31.20 30.59 0.61 0.00 A40 A40 31.00 30.51 0.49 0.00 A41 A41 31.04 30.36 0.68 0.00 A41A A41A 31.52 30.28 1.24 0.00 A42 A42 34.07 30.11 3.96 0.00 A43 A43 36.77 29.11 7.66 0.00 A44 A44 32.78 28.16 4.62 0.00 A45 A45 33.06 27.56 5.50 0.00 A46 A46 33.75 25.28 8.47 0.00 A47 A47 37.66 24.44 13.22 0.00 A48 A48 31.73 24.11 7.62 0.00 A49 A49 30.87 23.27 7.60 0.00 Minimum Required Freeboard based on Table 8.1, City of Redmond Technical Notebook, Issue # 5, 2007. * Data taken from XP Storm output "E8/E9" XP tables in files 0453BCP50PROP17.xp) P:\0453 - REDMOND - BEAR CREEK PARKWAY\B0453 - PROJECT PRODUCTION\B3 0453 Data & Reports\0453 Drainage\0453 Drainage Report\100% Drainage Report\ XP Model Output.xls Basin A-Node Freeboard (prop16) KPG, Inc. ---PAGE BREAK--- 0453_McRedmond Park Regional Water Quality Facility Stormwater Design Report APPENDIX B Pipe Capacity Summaries ---PAGE BREAK--- ---PAGE BREAK--- ---PAGE BREAK--- 0453_McRedmond Park Regional Water Quality Facility Stormwater Design Report APPENDIX C King County Soils Map ---PAGE BREAK--- 908 202 REDMOND WAY NE 83RD ST 154TH AVE NE 151ST AVE NE 152ND AVE NE 159TH PL NE CLEVELAND ST LEARY WAY NE OLD RED RD 161ST AVE NE 160TH AVE NE WILLOWS RD NE NE 80TH ST 158TH AVE NE NE LEARY WAY NE 73RD ST NE 74TH WAY NE 74TH ST NE 81ST ST 163RD PL NE W LAKE SAMMAMISH PKWY NE BROWN ST BEAR CREEK PKWY NE 83RD CT 153RD CT NE 160TH PL NE 160TH AVE NE NE 83RD CT Sammamish River Redmond Ea W 564600 564600 564700 564700 564800 564800 564900 564900 565000 565000 565100 565100 565200 565200 565300 565300 565400 565400 565500 565500 565600 565600 565700 565700 565800 565800 5280000 5280000 5280100 5280100 5280200 5280200 5280300 5280300 5280400 5280400 5280500 5280500 5280600 5280600 5280700 5280700 5280800 5280800 0 900 1,800 2,700 450 Feet 0 200 400 600 100 Meters Soil Map–King County Area, Washington (McRedmond WQF) Natural Resources Natural Resources Natural Resources Natural Resources Conservation Service Conservation Service Conservation Service Conservation Service Web Soil Survey 2.0 National Cooperative Soil Survey 7/18/2008 Page 1 of 3 ---PAGE BREAK--- MAP LEGEND MAP INFORMATION Area of Interest (AOI) Area of Interest (AOI) Soils Soil Map Units Special Point Features Blowout Borrow Pit Clay Spot Closed Depression Gravel Pit Gravelly Spot Landfill Lava Flow Marsh Mine or Quarry Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot Spoil Area Stony Spot Very Stony Spot Wet Spot Other Special Line Features Gully Short Steep Slope Other Political Features Municipalities Cities Urban Areas Water Features Oceans Streams and Canals Transportation Rails Roads Interstate Highways US Routes State Highways Local Roads Other Roads Original soil survey map sheets were prepared at publication scale. Viewing scale and printing scale, however, may vary from the original. Please rely on the bar scale on each map sheet for proper map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: http://websoilsurvey.nrcs.usda.gov Coordinate System: UTM Zone 10N This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: King County Area, Washington Survey Area Data: Version 4, Nov 21, 2006 Date(s) aerial images were photographed: 7/10/1990; 7/18/1990 The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident. Soil Map–King County Area, Washington (McRedmond WQF) Natural Resources Conservation Service Web Soil Survey 2.0 National Cooperative Soil Survey 7/18/2008 Page 2 of 3 ---PAGE BREAK--- Map Unit Legend King County Area, Washington (WA633) Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI Ea Earlmont silt loam 1.2 98.7% W Water 0.0 1.3% Totals for Area of Interest (AOI) 1.2 100.0% Soil Map–King County Area, Washington McRedmond WQF Natural Resources Conservation Service Web Soil Survey 2.0 National Cooperative Soil Survey 7/18/2008 Page 3 of 3 ---PAGE BREAK--- 0453_McRedmond Park Regional Water Quality Facility Stormwater Design Report APPENDIX D Basin Maps • City Planning Map (from City Regional Facility Analysis, February 2006) • Bear Creek Parkway Proposed Basin Map (KPG, May 2007) ---PAGE BREAK--- 550F 550E 550H 550G 550D 550C 550B 550A 550 540 510 City Center Basin Planning Map Watershed Boundary Subarea Boundary Proposed Facility Proposed Storm Trunk 0 250 500 750 Survey Feet ---PAGE BREAK--- ---PAGE BREAK--- 0453_McRedmond Park Regional Water Quality Facility Stormwater Design Report APPENDIX E McRedmond EcoStorm-Plus Drainage Analysis (Royal Environmental Systems, March 2007) ---PAGE BREAK--- 1P CB struct 5-diversion MH 2P CB struct A-84" Model 1.5 ecoStorm 3P CB struct B-splitter/drop MH 4P CB struct C-ecoStormplus 1of4 5P CB struct D-ecoStormplus 2of4 6P CB struct E-ecoStormplus 3of4 7P CB struct F-ecoStormplus 4of4 8P CB struct G-collection MH for plus' 1-2 9P CB struct H-collection MH for plus' 3-4 10P CB struct 13 11P CB struct 4 Drainage Diagram for McRedmond ecoStorm Plus - 1.3cfs 4 filters TIDEFLEX Prepared by Royal Environmental Systems, Inc., Printed 4/24/2008 HydroCAD® 8.50 s/n 003782 © 2007 HydroCAD Software Solutions LLC Subcat Reach Pond Link TREATMENT FLOW OF 1.3 CFS (580 GPM) WITH ALL 4 ECOSTORM PLUS FILTERS ONLINE INCORPORATING 0.63 FEET OF TIDEFLEX HEADLOSS ---PAGE BREAK--- Rainfall not specified McRedmond ecoStorm Plus - 1.3cfs 4 filters TIDEFLEX Printed 4/24/2008 Prepared by Royal Environmental Systems, Inc. Page 2 HydroCAD® 8.50 s/n 003782 © 2007 HydroCAD Software Solutions LLC Summary for Pond 1P: struct 5-diversion MH PEAK WSE = 26.86 SINCE 24" BYPASS IS 26.85 NO NEED FOR ADDITIONAL BYPASS WEIR WALL Inflow = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af, Incl. 1.30 cfs Base Flow Outflow = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af, Atten= Lag= 0.0 min Primary = 1.30 cfs @ 5.00 hrs, Volume= 1.613 af Secondary = 0.00 cfs @ 5.00 hrs, Volume= 0.004 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 26.86' @ 5.00 hrs Flood Elev= 34.00' Device Routing Invert Outlet Devices #1 Primary 26.05' 12.0" x 28.1' long 12" low flow to ecostorm CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.92' S= 0.0046 Cc= 0.900 n= 0.010 #2 Secondary 26.85' 24.0" x 49.0' long 24" high flow bypass CPP, square edge headwall, Ke= 0.500 Outlet Invert= 24.01' S= 0.0580 Cc= 0.900 n= 0.010 PVC, smooth interior Primary OutFlow Max=1.30 cfs @ 5.00 hrs HW=26.86' TW=26.65' (Fixed TW Elev= 26.65') 1=12" low flow to ecostorm (Outlet Controls 1.30 cfs @ 2.61 fps) Secondary OutFlow Max=0.00 cfs @ 5.00 hrs HW=26.86' TW=24.52' (Fixed TW Elev= 24.52') 2=24" high flow bypass (Inlet Controls 0.00 cfs @ 0.27 fps) Summary for Pond 2P: struct A-84" Model 1.5 ecoStorm Inflow = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af, Incl. 1.30 cfs Base Flow Outflow = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af, Atten= Lag= 0.0 min Primary = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 26.65' @ 5.00 hrs Flood Elev= 34.07' Device Routing Invert Outlet Devices #1 Primary 25.92' 12.0" x 14.0' long 12" PVC CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.86' S= 0.0043 Cc= 0.900 n= 0.010 PVC, smooth interior #2 Device 1 21.92' 12.0" Horiz. D3 - 12" submerged orifice C= 0.600 #3 Device 2 27.17' 7.9' long D2 - 30" overflow weir 0 End Contraction(s) #4 Device 2 25.92' 12.0" Vert. 12" Orifice in D2 C= 0.600 2P: struct A-84" Model 1.5 ecoStorm 1P: struct 5-diversion MH PEAK WSE = 26.86 SINCE 24" BYPASS IS 26.85 NO NEED FOR ADDITIONAL BYPASS WEIR WALL g y Peak Elev= 26.86' (Fixed TW Elev= 24.52') (Fixed TW Elev= 26.65') g y Peak Elev= 26.65' @ ---PAGE BREAK--- Rainfall not specified McRedmond ecoStorm Plus - 1.3cfs 4 filters TIDEFLEX Printed 4/24/2008 Prepared by Royal Environmental Systems, Inc. Page 3 HydroCAD® 8.50 s/n 003782 © 2007 HydroCAD Software Solutions LLC Primary OutFlow Max=1.30 cfs @ 5.00 hrs HW=26.65' TW=26.42' (Fixed TW Elev= 26.42') 1=12" PVC (Outlet Controls 1.30 cfs @ 2.94 fps) 2=D3 - 12" submerged orifice (Passes 1.30 cfs of 1.83 cfs potential flow) 3=D2 - 30" overflow weir ( Controls 0.00 cfs) 4=12" Orifice in D2 (Passes 1.30 cfs of 1.43 cfs potential flow) Summary for Pond 3P: struct B-splitter/drop MH 25.76 + 8" filter headloss = 26.42 Use 26.42 as tailwater on ecoStorm Inflow = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af, Incl. 1.30 cfs Base Flow Outflow = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af, Atten= Lag= 0.0 min Primary = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 25.76' @ 5.00 hrs Flood Elev= 34.37' Device Routing Invert Outlet Devices #1 Primary 22.20' 8.0" x 12.8' long 8" PVC to plus 1of4 CPP, square edge headwall, Ke= 0.500 Outlet Invert= 22.10' S= 0.0078 Cc= 0.900 n= 0.010 PVC, smooth interior #2 Primary 22.20' 8.0" x 12.8' long 8" PVC to plus 2of4 CPP, square edge headwall, Ke= 0.500 Outlet Invert= 22.10' S= 0.0078 Cc= 0.900 n= 0.010 PVC, smooth interior #3 Primary 22.20' 8.0" x 12.8' long 8" PVC to plus 3of4 CPP, square edge headwall, Ke= 0.500 Outlet Invert= 22.10' S= 0.0078 Cc= 0.900 n= 0.010 PVC, smooth interior #4 Primary 22.20' 8.0" x 15.8' long 8" PVC to plus 4of4 CPP, square edge headwall, Ke= 0.500 Outlet Invert= 22.10' S= 0.0063 Cc= 0.900 n= 0.010 PVC, smooth interior Primary OutFlow Max=1.46 cfs @ 5.00 hrs HW=25.76' TW=25.71' (Fixed TW Elev= 25.71') 1=8" PVC to plus 1of4 (Inlet Controls 0.37 cfs @ 1.05 fps) 2=8" PVC to plus 2of4 (Inlet Controls 0.37 cfs @ 1.05 fps) 3=8" PVC to plus 3of4 (Inlet Controls 0.37 cfs @ 1.05 fps) 4=8" PVC to plus 4of4 (Inlet Controls 0.37 cfs @ 1.05 fps) Summary for Pond 4P: struct C-ecoStormplus 1of4 Inflow = 0.33 cfs @ 5.00 hrs, Volume= 0.410 af, Incl. 0.33 cfs Base Flow Outflow = 0.33 cfs @ 5.00 hrs, Volume= 0.410 af, Atten= Lag= 0.0 min Primary = 0.33 cfs @ 5.00 hrs, Volume= 0.410 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs 3P: struct B-splitter/drop MH 4P: struct C-ecoStormplus 1of4 (Fixed TW Elev= 26.42') 25.76 + 8" filter headloss = 26.42 Use 26.42 as tailwater on ecoStorm g y Peak Elev= 25.76' (Fixed TW Elev= 25.71') ---PAGE BREAK--- Rainfall not specified McRedmond ecoStorm Plus - 1.3cfs 4 filters TIDEFLEX Printed 4/24/2008 Prepared by Royal Environmental Systems, Inc. Page 4 HydroCAD® 8.50 s/n 003782 © 2007 HydroCAD Software Solutions LLC Peak Elev= 25.71' @ 5.00 hrs Flood Elev= 34.02' Device Routing Invert Outlet Devices #1 Primary 25.25' 8.0" x 10.3' long 8" PVC CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.17' S= 0.0078 Cc= 0.900 n= 0.010 Primary OutFlow Max=0.33 cfs @ 5.00 hrs HW=25.71' TW=25.62' (Fixed TW Elev= 25.62') 1=8" PVC (Outlet Controls 0.33 cfs @ 1.80 fps) Summary for Pond 5P: struct D-ecoStormplus 2of4 Inflow = 0.33 cfs @ 5.00 hrs, Volume= 0.410 af, Incl. 0.33 cfs Base Flow Outflow = 0.33 cfs @ 5.00 hrs, Volume= 0.410 af, Atten= Lag= 0.0 min Primary = 0.33 cfs @ 5.00 hrs, Volume= 0.410 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 25.71' @ 5.00 hrs Flood Elev= 34.16' Device Routing Invert Outlet Devices #1 Primary 25.25' 8.0" x 8.2' long 8" PVC CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.18' S= 0.0085 Cc= 0.900 n= 0.010 Primary OutFlow Max=0.33 cfs @ 5.00 hrs HW=25.71' TW=25.62' (Fixed TW Elev= 25.62') 1=8" PVC (Outlet Controls 0.33 cfs @ 1.81 fps) Summary for Pond 6P: struct E-ecoStormplus 3of4 Inflow = 0.33 cfs @ 5.00 hrs, Volume= 0.410 af, Incl. 0.33 cfs Base Flow Outflow = 0.33 cfs @ 5.05 hrs, Volume= 0.410 af, Atten= Lag= 3.0 min Primary = 0.33 cfs @ 5.05 hrs, Volume= 0.410 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 25.69' @ 5.00 hrs Flood Elev= 34.40' Device Routing Invert Outlet Devices #1 Primary 25.25' 8.0" x 10.2' long 8" PVC CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.18' S= 0.0069 Cc= 0.900 n= 0.010 Primary OutFlow Max=0.33 cfs @ 5.05 hrs HW=25.69' TW=25.58' (Fixed TW Elev= 25.58') 1=8" PVC (Outlet Controls 0.33 cfs @ 1.93 fps) Summary for Pond 7P: struct F-ecoStormplus 4of4 Inflow = 0.33 cfs @ 5.00 hrs, Volume= 0.410 af, Incl. 0.33 cfs Base Flow Outflow = 0.33 cfs @ 5.00 hrs, Volume= 0.410 af, Atten= Lag= 0.0 min Primary = 0.33 cfs @ 5.00 hrs, Volume= 0.410 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs 5P: struct D-ecoStormplus 2of4 6P: struct E-ecoStormplus 3of4 7P: struct F-ecoStormplus 4of4 Peak Elev= 25.71' (Fixed TW Elev= 25.62') g y Peak Elev= 25.71' (Fixed TW Elev= 25.62') g y Peak Elev= 25.69' @ (Fixed TW Elev= 25.58') ---PAGE BREAK--- Rainfall not specified McRedmond ecoStorm Plus - 1.3cfs 4 filters TIDEFLEX Printed 4/24/2008 Prepared by Royal Environmental Systems, Inc. Page 5 HydroCAD® 8.50 s/n 003782 © 2007 HydroCAD Software Solutions LLC Peak Elev= 25.69' @ 5.00 hrs Flood Elev= 34.69' Device Routing Invert Outlet Devices #1 Primary 25.25' 8.0" x 14.6' long 8" PVC CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.16' S= 0.0062 Cc= 0.900 n= 0.010 Primary OutFlow Max=0.33 cfs @ 5.00 hrs HW=25.69' TW=25.58' (Fixed TW Elev= 25.58') 1=8" PVC (Outlet Controls 0.33 cfs @ 1.90 fps) Summary for Pond 8P: struct G-collection MH for plus' 1-2 Inflow = 0.65 cfs @ 5.00 hrs, Volume= 0.808 af, Incl. 0.65 cfs Base Flow Outflow = 0.65 cfs @ 5.00 hrs, Volume= 0.808 af, Atten= Lag= 0.0 min Primary = 0.65 cfs @ 5.00 hrs, Volume= 0.808 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 25.62' @ 5.00 hrs Flood Elev= 33.94' Device Routing Invert Outlet Devices #1 Primary 24.27' 12.0" x 20.2' long 12" PVC CPP, square edge headwall, Ke= 0.500 Outlet Invert= 24.18' S= 0.0045 Cc= 0.900 n= 0.010 PVC, smooth interior Primary OutFlow Max=0.72 cfs @ 5.00 hrs HW=25.62' TW=25.58' (Fixed TW Elev= 25.58') 1=12" PVC (Inlet Controls 0.72 cfs @ 0.91 fps) Summary for Pond 9P: struct H-collection MH for plus' 3-4 Inflow = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af, Incl. 1.30 cfs Base Flow Outflow = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af, Atten= Lag= 0.0 min Primary = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 25.58' @ 5.00 hrs Flood Elev= 34.44' Device Routing Invert Outlet Devices #1 Primary 24.18' 12.0" x 18.1' long 12" DIP Ke= 0.500 Outlet Invert= 24.10' S= 0.0044 Cc= 0.900 n= 0.012 Steel, smooth Primary OutFlow Max=1.33 cfs @ 5.00 hrs HW=25.58' TW=25.46' (Fixed TW Elev= 25.46') 1=12" DIP (Inlet Controls 1.33 cfs @ 1.70 fps) 8P: struct G-collection MH for plus' 1-2 9P: struct H-collection MH for plus' 3-4 Peak Elev= 25.69' @ (Fixed TW Elev= 25.58') (Fixed TW Elev= 25.58') g y Peak Elev= 25.62' @ g y Peak Elev= 25.58' @ (Fixed TW Elev= 25.46') ---PAGE BREAK--- Rainfall not specified McRedmond ecoStorm Plus - 1.3cfs 4 filters TIDEFLEX Printed 4/24/2008 Prepared by Royal Environmental Systems, Inc. Page 6 HydroCAD® 8.50 s/n 003782 © 2007 HydroCAD Software Solutions LLC Summary for Pond 10P: struct 13 PEAK WSE = 24.83 24.83 + 0.63' (TIDEFLEX HEADLOSS) = 25.46 USE 25.46 AS TAILWATER ON UPSTREAM 9P (STRUCT H) Inflow = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af, Incl. 1.30 cfs Base Flow Outflow = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af, Atten= Lag= 0.0 min Primary = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 24.83' @ 5.00 hrs Flood Elev= 35.01' Device Routing Invert Outlet Devices #1 Primary 24.10' 12.0" x 19.0' long 12" SDP Ke= 0.500 Outlet Invert= 24.01' S= 0.0047 Cc= 0.900 n= 0.012 Primary OutFlow Max=1.31 cfs @ 5.00 hrs HW=24.83' TW=24.52' (Fixed TW Elev= 24.52') 1=12" SDP (Barrel Controls 1.31 cfs @ 2.98 fps) Summary for Pond 11P: struct 4 Inflow = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af, Incl. 1.30 cfs Base Flow Outflow = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af, Atten= Lag= 0.0 min Primary = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 24.52' @ 5.00 hrs Flood Elev= 34.73' Device Routing Invert Outlet Devices #1 Primary 24.01' 24.0" x 193.0' long 24" SDP Ke= 0.500 Outlet Invert= 23.04' S= 0.0050 Cc= 0.900 n= 0.012 Primary OutFlow Max=1.29 cfs @ 5.00 hrs HW=24.52' (Free Discharge) 1=24" SDP (Barrel Controls 1.29 cfs @ 3.12 fps) 10P: struct 13 11P: struct 4 PEAK WSE = 24.83 24.83 + 0.63' (TIDEFLEX HEADLOSS) = 25.46 ( ) USE 25.46 AS TAILWATER ON UPSTREAM 9P (STRUCT H) g y Peak Elev= 24.83' (Fixed TW Elev= 24.52') g y Peak Elev= 24.52' @ (Free Discharge) ---PAGE BREAK--- 1P CB structure 5 on plans - diversion structure 2P CB structure A on plans 84" diameter Model 1.5 ecoStorm 3P CB structure B on plans splitter/drop structure 4P CB structure C on plans ecoStorm plus 1 of 4 5P CB structure D on plans ecoStorm plus 2 of 4 6P CB structure E on plans ecoStorm plus 3 of 4 7P CB structure F on plans ecoStorm plus 4 and 4 8P CB structure G on plans collection manhole for plus' 1-2 9P CB structure H on plans collection manhole for plus' 3-4 10P CB structure 13 on plans Drainage Diagram for McRedmond ecoStorm Plus - treatment flow Prepared by Royal Environmental Systems, Inc. 3/28/2007 HydroCAD® 8.00 s/n 003782 © 2006 HydroCAD Software Solutions LLC Subcat Reach Pond Link ---PAGE BREAK--- Rainfall not specified McRedmond ecoStorm Plus - treatment flow Page 2 Prepared by Royal Environmental Systems, Inc. 3/28/2007 11:16:53 AM HydroCAD® 8.00 s/n 003782 © 2006 HydroCAD Software Solutions LLC Pond 1P: structure 5 on plans - diversion structure Inflow = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af, Incl. 1.30 cfs Base Flow Outflow = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af, Atten= Lag= 0.0 min Primary = 1.30 cfs @ 5.00 hrs, Volume= 1.616 af Secondary = 0.00 cfs @ 5.00 hrs, Volume= 0.001 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 26.85' @ 5.00 hrs Flood Elev= 34.00' Device Routing Invert Outlet Devices #1 Primary 26.05' 12.0" x 28.1' long 12" low flow to ecostorm CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.92' S= 0.0046 Cc= 0.900 n= 0.010 #2 Secondary 26.85' 24.0" x 49.0' long 24" high flow bypass CPP, square edge headwall, Ke= 0.500 Outlet Invert= 24.01' S= 0.0580 Cc= 0.900 n= 0.010 PVC, smooth interior Primary OutFlow Max=1.30 cfs @ 5.00 hrs HW=26.85' TW=26.64' (Fixed TW Elev= 26.64') 1=12" low flow to ecostorm (Outlet Controls 1.30 cfs @ 2.64 fps) Secondary OutFlow Max=0.00 cfs @ 5.00 hrs HW=26.85' (Free Discharge) 2=24" high flow bypass (Inlet Controls 0.00 cfs @ 0.11 fps) Pond 2P: structure A on plans 84" diameter Model 1.5 ecoStorm Inflow = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af, Incl. 1.30 cfs Base Flow Outflow = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af, Atten= Lag= 0.0 min Primary = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 26.64' @ 5.00 hrs Flood Elev= 34.07' Device Routing Invert Outlet Devices #1 Primary 25.92' 12.0" x 14.0' long 12" ecostorm outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.86' S= 0.0043 Cc= 0.900 n= 0.010 PVC, smooth interior #2 Device 1 21.92' 12.0" Horiz. D3 - 12" submerged orifice C= 0.600 #3 Device 2 27.17' 7.9' long D2 - 30" overflow weir 0 End Contraction(s) #4 Device 2 25.92' 1.0' long x 1.25' rise 12" vertical weir in D2 2 End Contraction(s) Primary OutFlow Max=1.30 cfs @ 5.00 hrs HW=26.64' TW=26.33' (Fixed TW Elev= 26.33') 1=12" ecostorm outlet pipe (Barrel Controls 1.30 cfs @ 2.98 fps) 2=D3 - 12" submerged orifice (Passes 1.30 cfs of 2.12 cfs potential flow) 3=D2 - 30" overflow weir ( Controls 0.00 cfs) 4=12" vertical weir in D2 (Passes 1.30 cfs of 1.46 cfs potential flow) ---PAGE BREAK--- Rainfall not specified McRedmond ecoStorm Plus - treatment flow Page 3 Prepared by Royal Environmental Systems, Inc. 3/28/2007 11:16:53 AM HydroCAD® 8.00 s/n 003782 © 2006 HydroCAD Software Solutions LLC Pond 3P: structure B on plans splitter/drop structure Inflow = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af, Incl. 1.30 cfs Base Flow Outflow = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af, Atten= Lag= 0.0 min Primary = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 25.68' @ 5.00 hrs Flood Elev= 34.37' Device Routing Invert Outlet Devices #1 Primary 22.20' 8.0" x 12.8' long 8" to plus 1 of 4 CPP, square edge headwall, Ke= 0.500 Outlet Invert= 22.10' S= 0.0078 Cc= 0.900 n= 0.010 PVC, smooth interior #2 Primary 22.20' 8.0" x 12.8' long 8" to plus 2 of 4 CPP, square edge headwall, Ke= 0.500 Outlet Invert= 22.10' S= 0.0078 Cc= 0.900 n= 0.010 PVC, smooth interior #3 Primary 22.20' 8.0" x 12.8' long 8" to plus 3 of 4 CPP, square edge headwall, Ke= 0.500 Outlet Invert= 22.10' S= 0.0078 Cc= 0.900 n= 0.010 PVC, smooth interior #4 Primary 22.20' 8.0" x 15.8' long 8" to plus 4 of 4 CPP, square edge headwall, Ke= 0.500 Outlet Invert= 22.10' S= 0.0063 Cc= 0.900 n= 0.010 PVC, smooth interior Primary OutFlow Max=1.70 cfs @ 5.00 hrs HW=25.68' TW=25.62' (Fixed TW Elev= 25.62') 1=8" to plus 1 of 4 (Inlet Controls 0.42 cfs @ 1.22 fps) 2=8" to plus 2 of 4 (Inlet Controls 0.42 cfs @ 1.22 fps) 3=8" to plus 3 of 4 (Inlet Controls 0.42 cfs @ 1.22 fps) 4=8" to plus 4 of 4 (Inlet Controls 0.42 cfs @ 1.22 fps) Pond 4P: structure C on plans ecoStorm plus 1 of 4 Inflow = 0.33 cfs @ 5.00 hrs, Volume= 0.410 af, Incl. 0.33 cfs Base Flow Outflow = 0.33 cfs @ 5.00 hrs, Volume= 0.410 af, Atten= Lag= 0.0 min Primary = 0.33 cfs @ 5.00 hrs, Volume= 0.410 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 25.62' @ 5.00 hrs Flood Elev= 34.02' Device Routing Invert Outlet Devices #1 Primary 25.25' 8.0" x 10.3' long 8" ecostorm plus outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.17' S= 0.0078 Cc= 0.900 n= 0.010 Primary OutFlow Max=0.33 cfs @ 5.00 hrs HW=25.62' TW=25.05' (Fixed TW Elev= 25.05') 1=8" ecostorm plus outlet pipe (Barrel Controls 0.33 cfs @ 2.42 fps) ---PAGE BREAK--- Rainfall not specified McRedmond ecoStorm Plus - treatment flow Page 4 Prepared by Royal Environmental Systems, Inc. 3/28/2007 11:16:53 AM HydroCAD® 8.00 s/n 003782 © 2006 HydroCAD Software Solutions LLC Pond 5P: structure D on plans ecoStorm plus 2 of 4 Inflow = 0.33 cfs @ 5.00 hrs, Volume= 0.410 af, Incl. 0.33 cfs Base Flow Outflow = 0.33 cfs @ 5.00 hrs, Volume= 0.410 af, Atten= Lag= 0.0 min Primary = 0.33 cfs @ 5.00 hrs, Volume= 0.410 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 25.62' @ 5.00 hrs Flood Elev= 34.16' Device Routing Invert Outlet Devices #1 Primary 25.25' 8.0" x 8.2' long 8" ecostorm plus outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.18' S= 0.0085 Cc= 0.900 n= 0.010 Primary OutFlow Max=0.33 cfs @ 5.00 hrs HW=25.62' TW=25.05' (Fixed TW Elev= 25.05') 1=8" ecostorm plus outlet pipe (Barrel Controls 0.33 cfs @ 2.40 fps) Pond 6P: structure E on plans ecoStorm plus 3 of 4 Inflow = 0.33 cfs @ 5.00 hrs, Volume= 0.410 af, Incl. 0.33 cfs Base Flow Outflow = 0.33 cfs @ 5.00 hrs, Volume= 0.410 af, Atten= Lag= 0.0 min Primary = 0.33 cfs @ 5.00 hrs, Volume= 0.410 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 25.62' @ 5.00 hrs Flood Elev= 34.40' Device Routing Invert Outlet Devices #1 Primary 25.25' 8.0" x 10.2' long 8" ecostorm plus outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.18' S= 0.0069 Cc= 0.900 n= 0.010 Primary OutFlow Max=0.33 cfs @ 5.00 hrs HW=25.62' TW=25.00' (Fixed TW Elev= 25.00') 1=8" ecostorm plus outlet pipe (Barrel Controls 0.33 cfs @ 2.37 fps) Pond 7P: structure F on plans ecoStorm plus 4 and 4 Inflow = 0.33 cfs @ 5.00 hrs, Volume= 0.410 af, Incl. 0.33 cfs Base Flow Outflow = 0.33 cfs @ 5.00 hrs, Volume= 0.410 af, Atten= Lag= 0.0 min Primary = 0.33 cfs @ 5.00 hrs, Volume= 0.410 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 25.62' @ 5.00 hrs Flood Elev= 34.69' Device Routing Invert Outlet Devices #1 Primary 25.25' 8.0" x 14.6' long 8" ecostorm plus outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.16' S= 0.0062 Cc= 0.900 n= 0.010 ---PAGE BREAK--- Rainfall not specified McRedmond ecoStorm Plus - treatment flow Page 5 Prepared by Royal Environmental Systems, Inc. 3/28/2007 11:16:53 AM HydroCAD® 8.00 s/n 003782 © 2006 HydroCAD Software Solutions LLC Primary OutFlow Max=0.33 cfs @ 5.00 hrs HW=25.62' TW=25.00' (Fixed TW Elev= 25.00') 1=8" ecostorm plus outlet pipe (Barrel Controls 0.33 cfs @ 2.39 fps) Pond 8P: structure G on plans collection manhole for plus' 1-2 Inflow = 0.65 cfs @ 5.00 hrs, Volume= 0.808 af, Incl. 0.65 cfs Base Flow Outflow = 0.65 cfs @ 5.00 hrs, Volume= 0.808 af, Atten= Lag= 0.0 min Primary = 0.65 cfs @ 5.00 hrs, Volume= 0.808 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 25.05' @ 5.00 hrs Flood Elev= 33.94' Device Routing Invert Outlet Devices #1 Primary 24.27' 12.0" x 20.2' long 12" outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 24.18' S= 0.0045 Cc= 0.900 n= 0.010 PVC, smooth interior Primary OutFlow Max=0.66 cfs @ 5.00 hrs HW=25.05' TW=25.00' (Fixed TW Elev= 25.00') 1=12" outlet pipe (Outlet Controls 0.66 cfs @ 1.37 fps) Pond 9P: structure H on plans collection manhole for plus' 3-4 Inflow = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af, Incl. 1.30 cfs Base Flow Outflow = 1.30 cfs @ 5.25 hrs, Volume= 1.617 af, Atten= Lag= 15.0 min Primary = 1.30 cfs @ 5.25 hrs, Volume= 1.617 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 25.00' @ 5.00 hrs Flood Elev= 34.44' Device Routing Invert Outlet Devices #1 Primary 24.18' 12.0" x 18.1' long 12" outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 24.10' S= 0.0044 Cc= 0.900 n= 0.010 PVC, smooth interior Primary OutFlow Max=1.30 cfs @ 5.25 hrs HW=25.00' TW=24.81' (Fixed TW Elev= 24.81') 1=12" outlet pipe (Outlet Controls 1.30 cfs @ 2.58 fps) Pond 10P: structure 13 on plans Inflow = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af, Incl. 1.30 cfs Base Flow Outflow = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af, Atten= Lag= 0.0 min Primary = 1.30 cfs @ 5.00 hrs, Volume= 1.617 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs ---PAGE BREAK--- Rainfall not specified McRedmond ecoStorm Plus - treatment flow Page 6 Prepared by Royal Environmental Systems, Inc. 3/28/2007 11:16:53 AM HydroCAD® 8.00 s/n 003782 © 2006 HydroCAD Software Solutions LLC Peak Elev= 24.81' @ 5.00 hrs Flood Elev= 34.00' Device Routing Invert Outlet Devices #1 Primary 24.10' 12.0" x 19.0' long 12" outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 24.01' S= 0.0047 Cc= 0.900 n= 0.010 PVC, smooth interior Primary OutFlow Max=1.30 cfs @ 5.00 hrs HW=24.81' (Free Discharge) 1=12" outlet pipe (Barrel Controls 1.30 cfs @ 3.06 fps) ---PAGE BREAK--- 1P CB structure 5 on plans - diversion structure 2P CB structure A on plans 84" diameter Model 1.5 ecoStorm 3P CB structure B on plans splitter/drop structure 4P CB structure C on plans ecoStorm plus 1 of 4 5P CB structure D on plans ecoStorm plus 2 of 4 6P CB structure E on plans ecoStorm plus 3 of 4 7P CB structure F on plans ecoStorm plus 4 and 4 8P CB structure G on plans collection manhole for plus' 1-2 9P CB structure H on plans collection manhole for plus' 3-4 10P CB structure 13 on plans Drainage Diagram for McRedmond ecoStorm Plus - 10-year Prepared by Royal Environmental Systems, Inc. 3/28/2007 HydroCAD® 8.00 s/n 003782 © 2006 HydroCAD Software Solutions LLC Subcat Reach Pond Link ---PAGE BREAK--- Rainfall not specified McRedmond ecoStorm Plus - 10-year Page 2 Prepared by Royal Environmental Systems, Inc. 3/28/2007 11:17:29 AM HydroCAD® 8.00 s/n 003782 © 2006 HydroCAD Software Solutions LLC Pond 1P: structure 5 on plans - diversion structure Inflow = 9.02 cfs @ 5.00 hrs, Volume= 11.219 af, Incl. 9.02 cfs Base Flow Outflow = 9.02 cfs @ 5.00 hrs, Volume= 11.219 af, Atten= Lag= 0.0 min Primary = 2.53 cfs @ 5.00 hrs, Volume= 3.143 af Secondary = 6.49 cfs @ 5.00 hrs, Volume= 8.076 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 27.97' @ 5.00 hrs Flood Elev= 34.00' Device Routing Invert Outlet Devices #1 Primary 26.05' 12.0" x 28.1' long 12" low flow to ecostorm CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.92' S= 0.0046 Cc= 0.900 n= 0.010 #2 Secondary 26.85' 24.0" x 49.0' long 24" high flow bypass CPP, square edge headwall, Ke= 0.500 Outlet Invert= 24.01' S= 0.0580 Cc= 0.900 n= 0.010 PVC, smooth interior Primary OutFlow Max=2.53 cfs @ 5.00 hrs HW=27.97' TW=27.52' (Fixed TW Elev= 27.52') 1=12" low flow to ecostorm (Inlet Controls 2.53 cfs @ 3.22 fps) Secondary OutFlow Max=6.49 cfs @ 5.00 hrs HW=27.97' TW=25.10' (Fixed TW Elev= 25.10') 2=24" high flow bypass (Inlet Controls 6.49 cfs @ 3.60 fps) Pond 2P: structure A on plans 84" diameter Model 1.5 ecoStorm Inflow = 2.52 cfs @ 5.00 hrs, Volume= 3.134 af, Incl. 2.52 cfs Base Flow Outflow = 2.52 cfs @ 5.00 hrs, Volume= 3.134 af, Atten= Lag= 0.0 min Primary = 2.52 cfs @ 5.00 hrs, Volume= 3.134 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 27.52' @ 5.00 hrs Flood Elev= 34.07' Device Routing Invert Outlet Devices #1 Primary 25.92' 12.0" x 14.0' long 12" ecostorm outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.86' S= 0.0043 Cc= 0.900 n= 0.010 PVC, smooth interior #2 Device 1 21.92' 12.0" Horiz. D3 - 12" submerged orifice C= 0.600 #3 Device 2 27.17' 7.9' long D2 - 30" overflow weir 0 End Contraction(s) #4 Device 2 25.92' 1.0' long x 1.25' rise 12" vertical weir in D2 2 End Contraction(s) Primary OutFlow Max=2.52 cfs @ 5.00 hrs HW=27.52' TW=27.08' (Fixed TW Elev= 27.08') 1=12" ecostorm outlet pipe ( Controls 2.52 cfs) 2=D3 - 12" submerged orifice (Orifice Controls 2.52 cfs @ 3.21 fps) 3=D2 - 30" overflow weir (Passes < 5.46 cfs potential flow) 4=12" vertical weir in D2 (Passes < 3.06 cfs potential flow) ---PAGE BREAK--- Rainfall not specified McRedmond ecoStorm Plus - 10-year Page 3 Prepared by Royal Environmental Systems, Inc. 3/28/2007 11:17:29 AM HydroCAD® 8.00 s/n 003782 © 2006 HydroCAD Software Solutions LLC Pond 3P: structure B on plans splitter/drop structure Inflow = 2.52 cfs @ 5.00 hrs, Volume= 3.134 af, Incl. 2.52 cfs Base Flow Outflow = 2.52 cfs @ 5.00 hrs, Volume= 3.134 af, Atten= Lag= 0.0 min Primary = 2.52 cfs @ 5.00 hrs, Volume= 3.134 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 27.08' @ 5.00 hrs Flood Elev= 34.37' Device Routing Invert Outlet Devices #1 Primary 22.20' 8.0" x 12.8' long 8" to plus 1 of 4 CPP, square edge headwall, Ke= 0.500 Outlet Invert= 22.10' S= 0.0078 Cc= 0.900 n= 0.010 PVC, smooth interior #2 Primary 22.20' 8.0" x 12.8' long 8" to plus 2 of 4 CPP, square edge headwall, Ke= 0.500 Outlet Invert= 22.10' S= 0.0078 Cc= 0.900 n= 0.010 PVC, smooth interior #3 Primary 22.20' 8.0" x 12.8' long 8" to plus 3 of 4 CPP, square edge headwall, Ke= 0.500 Outlet Invert= 22.10' S= 0.0078 Cc= 0.900 n= 0.010 PVC, smooth interior #4 Primary 22.20' 8.0" x 15.8' long 8" to plus 4 of 4 CPP, square edge headwall, Ke= 0.500 Outlet Invert= 22.10' S= 0.0063 Cc= 0.900 n= 0.010 PVC, smooth interior Primary OutFlow Max=2.54 cfs @ 5.00 hrs HW=27.08' TW=26.94' (Fixed TW Elev= 26.94') 1=8" to plus 1 of 4 (Inlet Controls 0.63 cfs @ 1.82 fps) 2=8" to plus 2 of 4 (Inlet Controls 0.63 cfs @ 1.82 fps) 3=8" to plus 3 of 4 (Inlet Controls 0.63 cfs @ 1.82 fps) 4=8" to plus 4 of 4 (Inlet Controls 0.63 cfs @ 1.82 fps) Pond 4P: structure C on plans ecoStorm plus 1 of 4 Inflow = 0.63 cfs @ 5.00 hrs, Volume= 0.784 af, Incl. 0.63 cfs Base Flow Outflow = 0.63 cfs @ 5.00 hrs, Volume= 0.784 af, Atten= Lag= 0.0 min Primary = 0.63 cfs @ 5.00 hrs, Volume= 0.784 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 26.25' @ 5.00 hrs Flood Elev= 34.02' Device Routing Invert Outlet Devices #1 Primary 25.25' 8.0" x 10.3' long 8" ecostorm plus outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.17' S= 0.0078 Cc= 0.900 n= 0.010 Primary OutFlow Max=0.64 cfs @ 5.00 hrs HW=26.25' TW=26.11' (Fixed TW Elev= 26.11') 1=8" ecostorm plus outlet pipe (Inlet Controls 0.64 cfs @ 1.83 fps) ---PAGE BREAK--- Rainfall not specified McRedmond ecoStorm Plus - 10-year Page 4 Prepared by Royal Environmental Systems, Inc. 3/28/2007 11:17:29 AM HydroCAD® 8.00 s/n 003782 © 2006 HydroCAD Software Solutions LLC Pond 5P: structure D on plans ecoStorm plus 2 of 4 Inflow = 0.63 cfs @ 5.00 hrs, Volume= 0.784 af, Incl. 0.63 cfs Base Flow Outflow = 0.63 cfs @ 5.00 hrs, Volume= 0.784 af, Atten= Lag= 0.0 min Primary = 0.63 cfs @ 5.00 hrs, Volume= 0.784 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 26.25' @ 5.00 hrs Flood Elev= 34.16' Device Routing Invert Outlet Devices #1 Primary 25.25' 8.0" x 8.2' long 8" ecostorm plus outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.18' S= 0.0085 Cc= 0.900 n= 0.010 Primary OutFlow Max=0.64 cfs @ 5.00 hrs HW=26.25' TW=26.11' (Fixed TW Elev= 26.11') 1=8" ecostorm plus outlet pipe (Inlet Controls 0.64 cfs @ 1.82 fps) Pond 6P: structure E on plans ecoStorm plus 3 of 4 Inflow = 0.63 cfs @ 5.00 hrs, Volume= 0.784 af, Incl. 0.63 cfs Base Flow Outflow = 0.63 cfs @ 5.00 hrs, Volume= 0.784 af, Atten= Lag= 0.0 min Primary = 0.63 cfs @ 5.00 hrs, Volume= 0.784 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 26.14' @ 5.00 hrs Flood Elev= 34.40' Device Routing Invert Outlet Devices #1 Primary 25.25' 8.0" x 10.2' long 8" ecostorm plus outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.18' S= 0.0069 Cc= 0.900 n= 0.010 Primary OutFlow Max=0.64 cfs @ 5.00 hrs HW=26.14' TW=26.00' (Fixed TW Elev= 26.00') 1=8" ecostorm plus outlet pipe (Inlet Controls 0.64 cfs @ 1.83 fps) Pond 7P: structure F on plans ecoStorm plus 4 and 4 Inflow = 0.63 cfs @ 5.00 hrs, Volume= 0.784 af, Incl. 0.63 cfs Base Flow Outflow = 0.63 cfs @ 5.00 hrs, Volume= 0.784 af, Atten= Lag= 0.0 min Primary = 0.63 cfs @ 5.00 hrs, Volume= 0.784 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 26.14' @ 5.00 hrs Flood Elev= 34.69' Device Routing Invert Outlet Devices #1 Primary 25.25' 8.0" x 14.6' long 8" ecostorm plus outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.16' S= 0.0062 Cc= 0.900 n= 0.010 ---PAGE BREAK--- Rainfall not specified McRedmond ecoStorm Plus - 10-year Page 5 Prepared by Royal Environmental Systems, Inc. 3/28/2007 11:17:29 AM HydroCAD® 8.00 s/n 003782 © 2006 HydroCAD Software Solutions LLC Primary OutFlow Max=0.64 cfs @ 5.00 hrs HW=26.14' TW=26.00' (Fixed TW Elev= 26.00') 1=8" ecostorm plus outlet pipe (Inlet Controls 0.64 cfs @ 1.83 fps) Pond 8P: structure G on plans collection manhole for plus' 1-2 Inflow = 1.26 cfs @ 5.00 hrs, Volume= 1.567 af, Incl. 1.26 cfs Base Flow Outflow = 1.26 cfs @ 5.00 hrs, Volume= 1.567 af, Atten= Lag= 0.0 min Primary = 1.26 cfs @ 5.00 hrs, Volume= 1.567 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 26.11' @ 5.00 hrs Flood Elev= 33.94' Device Routing Invert Outlet Devices #1 Primary 24.27' 12.0" x 20.2' long 12" outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 24.18' S= 0.0045 Cc= 0.900 n= 0.010 PVC, smooth interior Primary OutFlow Max=1.26 cfs @ 5.00 hrs HW=26.11' TW=26.00' (Fixed TW Elev= 26.00') 1=12" outlet pipe (Inlet Controls 1.26 cfs @ 1.61 fps) Pond 9P: structure H on plans collection manhole for plus' 3-4 Inflow = 2.52 cfs @ 5.00 hrs, Volume= 3.134 af, Incl. 2.52 cfs Base Flow Outflow = 2.52 cfs @ 5.00 hrs, Volume= 3.134 af, Atten= Lag= 0.0 min Primary = 2.52 cfs @ 5.00 hrs, Volume= 3.134 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 26.00' @ 5.00 hrs Flood Elev= 34.44' Device Routing Invert Outlet Devices #1 Primary 24.18' 12.0" x 18.1' long 12" outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 24.10' S= 0.0044 Cc= 0.900 n= 0.010 PVC, smooth interior Primary OutFlow Max=2.52 cfs @ 5.00 hrs HW=26.00' TW=25.55' (Fixed TW Elev= 25.55') 1=12" outlet pipe (Inlet Controls 2.52 cfs @ 3.21 fps) Pond 10P: structure 13 on plans Inflow = 2.52 cfs @ 5.00 hrs, Volume= 3.134 af, Incl. 2.52 cfs Base Flow Outflow = 2.52 cfs @ 5.00 hrs, Volume= 3.134 af, Atten= Lag= 0.0 min Primary = 2.52 cfs @ 5.00 hrs, Volume= 3.134 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs ---PAGE BREAK--- Rainfall not specified McRedmond ecoStorm Plus - 10-year Page 6 Prepared by Royal Environmental Systems, Inc. 3/28/2007 11:17:29 AM HydroCAD® 8.00 s/n 003782 © 2006 HydroCAD Software Solutions LLC Peak Elev= 25.55' @ 5.00 hrs Flood Elev= 34.00' Device Routing Invert Outlet Devices #1 Primary 24.10' 12.0" x 19.0' long 12" outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 24.01' S= 0.0047 Cc= 0.900 n= 0.010 PVC, smooth interior Primary OutFlow Max=2.52 cfs @ 5.00 hrs HW=25.55' TW=25.10' (Fixed TW Elev= 25.10') 1=12" outlet pipe (Inlet Controls 2.52 cfs @ 3.21 fps) ---PAGE BREAK--- 1P CB structure 5 on plans - diversion structure 2P CB structure A on plans 84" diameter Model 1.5 ecoStorm 3P CB structure B on plans splitter/drop structure 4P CB structure C on plans ecoStorm plus 1 of 4 5P CB structure D on plans ecoStorm plus 2 of 4 6P CB structure E on plans ecoStorm plus 3 of 4 7P CB structure F on plans ecoStorm plus 4 and 4 8P CB structure G on plans collection manhole for plus' 1-2 9P CB structure H on plans collection manhole for plus' 3-4 10P CB structure 13 on plans Drainage Diagram for McRedmond ecoStorm Plus - 50-year Prepared by Royal Environmental Systems, Inc. 3/28/2007 HydroCAD® 8.00 s/n 003782 © 2006 HydroCAD Software Solutions LLC Subcat Reach Pond Link ---PAGE BREAK--- Rainfall not specified McRedmond ecoStorm Plus - 50-year Page 2 Prepared by Royal Environmental Systems, Inc. 3/28/2007 11:17:49 AM HydroCAD® 8.00 s/n 003782 © 2006 HydroCAD Software Solutions LLC Pond 1P: structure 5 on plans - diversion structure Inflow = 11.32 cfs @ 5.00 hrs, Volume= 14.080 af, Incl. 11.32 cfs Base Flow Outflow = 11.32 cfs @ 5.00 hrs, Volume= 14.080 af, Atten= Lag= 0.0 min Primary = 2.55 cfs @ 5.00 hrs, Volume= 3.172 af Secondary = 8.77 cfs @ 5.00 hrs, Volume= 10.907 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 28.19' @ 5.00 hrs Flood Elev= 34.00' Device Routing Invert Outlet Devices #1 Primary 26.05' 12.0" x 28.1' long 12" low flow to ecostorm CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.92' S= 0.0046 Cc= 0.900 n= 0.010 #2 Secondary 26.85' 24.0" x 49.0' long 24" high flow bypass CPP, square edge headwall, Ke= 0.500 Outlet Invert= 24.01' S= 0.0580 Cc= 0.900 n= 0.010 PVC, smooth interior Primary OutFlow Max=2.55 cfs @ 5.00 hrs HW=28.19' TW=27.73' (Fixed TW Elev= 27.73') 1=12" low flow to ecostorm (Inlet Controls 2.55 cfs @ 3.25 fps) Secondary OutFlow Max=8.77 cfs @ 5.00 hrs HW=28.19' TW=25.28' (Fixed TW Elev= 25.28') 2=24" high flow bypass (Inlet Controls 8.77 cfs @ 3.93 fps) Pond 2P: structure A on plans 84" diameter Model 1.5 ecoStorm Inflow = 2.56 cfs @ 5.00 hrs, Volume= 3.184 af, Incl. 2.56 cfs Base Flow Outflow = 2.56 cfs @ 5.00 hrs, Volume= 3.184 af, Atten= Lag= 0.0 min Primary = 2.56 cfs @ 5.00 hrs, Volume= 3.184 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 27.73' @ 5.00 hrs Flood Elev= 34.07' Device Routing Invert Outlet Devices #1 Primary 25.92' 12.0" x 14.0' long 12" ecostorm outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.86' S= 0.0043 Cc= 0.900 n= 0.010 PVC, smooth interior #2 Device 1 21.92' 12.0" Horiz. D3 - 12" submerged orifice C= 0.600 #3 Device 2 27.17' 7.9' long D2 - 30" overflow weir 0 End Contraction(s) #4 Device 2 25.92' 1.0' long x 1.25' rise 12" vertical weir in D2 2 End Contraction(s) Primary OutFlow Max=2.56 cfs @ 5.00 hrs HW=27.73' TW=27.27' (Fixed TW Elev= 27.27') 1=12" ecostorm outlet pipe ( Controls 2.56 cfs) 2=D3 - 12" submerged orifice (Orifice Controls 2.56 cfs @ 3.26 fps) 3=D2 - 30" overflow weir (Passes < 10.49 cfs potential flow) 4=12" vertical weir in D2 (Passes < 3.12 cfs potential flow) ---PAGE BREAK--- Rainfall not specified McRedmond ecoStorm Plus - 50-year Page 3 Prepared by Royal Environmental Systems, Inc. 3/28/2007 11:17:49 AM HydroCAD® 8.00 s/n 003782 © 2006 HydroCAD Software Solutions LLC Pond 3P: structure B on plans splitter/drop structure Inflow = 2.56 cfs @ 5.00 hrs, Volume= 3.184 af, Incl. 2.56 cfs Base Flow Outflow = 2.56 cfs @ 5.00 hrs, Volume= 3.184 af, Atten= Lag= 0.0 min Primary = 2.56 cfs @ 5.00 hrs, Volume= 3.184 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 27.27' @ 5.00 hrs Flood Elev= 34.37' Device Routing Invert Outlet Devices #1 Primary 22.20' 8.0" x 12.8' long 8" to plus 1 of 4 CPP, square edge headwall, Ke= 0.500 Outlet Invert= 22.10' S= 0.0078 Cc= 0.900 n= 0.010 PVC, smooth interior #2 Primary 22.20' 8.0" x 12.8' long 8" to plus 2 of 4 CPP, square edge headwall, Ke= 0.500 Outlet Invert= 22.10' S= 0.0078 Cc= 0.900 n= 0.010 PVC, smooth interior #3 Primary 22.20' 8.0" x 12.8' long 8" to plus 3 of 4 CPP, square edge headwall, Ke= 0.500 Outlet Invert= 22.10' S= 0.0078 Cc= 0.900 n= 0.010 PVC, smooth interior #4 Primary 22.20' 8.0" x 15.8' long 8" to plus 4 of 4 CPP, square edge headwall, Ke= 0.500 Outlet Invert= 22.10' S= 0.0063 Cc= 0.900 n= 0.010 PVC, smooth interior Primary OutFlow Max=2.62 cfs @ 5.00 hrs HW=27.27' TW=27.12' (Fixed TW Elev= 27.12') 1=8" to plus 1 of 4 (Inlet Controls 0.65 cfs @ 1.87 fps) 2=8" to plus 2 of 4 (Inlet Controls 0.65 cfs @ 1.87 fps) 3=8" to plus 3 of 4 (Inlet Controls 0.65 cfs @ 1.87 fps) 4=8" to plus 4 of 4 (Inlet Controls 0.65 cfs @ 1.87 fps) Pond 4P: structure C on plans ecoStorm plus 1 of 4 Inflow = 0.64 cfs @ 5.00 hrs, Volume= 0.796 af, Incl. 0.64 cfs Base Flow Outflow = 0.64 cfs @ 5.00 hrs, Volume= 0.796 af, Atten= Lag= 0.0 min Primary = 0.64 cfs @ 5.00 hrs, Volume= 0.796 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 26.47' @ 5.00 hrs Flood Elev= 34.02' Device Routing Invert Outlet Devices #1 Primary 25.25' 8.0" x 10.3' long 8" ecostorm plus outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.17' S= 0.0078 Cc= 0.900 n= 0.010 Primary OutFlow Max=0.64 cfs @ 5.00 hrs HW=26.47' TW=26.32' (Fixed TW Elev= 26.32') 1=8" ecostorm plus outlet pipe (Inlet Controls 0.64 cfs @ 1.85 fps) ---PAGE BREAK--- Rainfall not specified McRedmond ecoStorm Plus - 50-year Page 4 Prepared by Royal Environmental Systems, Inc. 3/28/2007 11:17:49 AM HydroCAD® 8.00 s/n 003782 © 2006 HydroCAD Software Solutions LLC Pond 5P: structure D on plans ecoStorm plus 2 of 4 Inflow = 0.64 cfs @ 5.00 hrs, Volume= 0.796 af, Incl. 0.64 cfs Base Flow Outflow = 0.64 cfs @ 5.00 hrs, Volume= 0.796 af, Atten= Lag= 0.0 min Primary = 0.64 cfs @ 5.00 hrs, Volume= 0.796 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 26.47' @ 5.00 hrs Flood Elev= 34.16' Device Routing Invert Outlet Devices #1 Primary 25.25' 8.0" x 8.2' long 8" ecostorm plus outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.18' S= 0.0085 Cc= 0.900 n= 0.010 Primary OutFlow Max=0.65 cfs @ 5.00 hrs HW=26.47' TW=26.32' (Fixed TW Elev= 26.32') 1=8" ecostorm plus outlet pipe (Inlet Controls 0.65 cfs @ 1.85 fps) Pond 6P: structure E on plans ecoStorm plus 3 of 4 Inflow = 0.64 cfs @ 5.00 hrs, Volume= 0.796 af, Incl. 0.64 cfs Base Flow Outflow = 0.64 cfs @ 5.00 hrs, Volume= 0.796 af, Atten= Lag= 0.0 min Primary = 0.64 cfs @ 5.00 hrs, Volume= 0.796 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 26.35' @ 5.00 hrs Flood Elev= 34.40' Device Routing Invert Outlet Devices #1 Primary 25.25' 8.0" x 10.2' long 8" ecostorm plus outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.18' S= 0.0069 Cc= 0.900 n= 0.010 Primary OutFlow Max=0.64 cfs @ 5.00 hrs HW=26.35' TW=26.20' (Fixed TW Elev= 26.20') 1=8" ecostorm plus outlet pipe (Inlet Controls 0.64 cfs @ 1.84 fps) Pond 7P: structure F on plans ecoStorm plus 4 and 4 Inflow = 0.64 cfs @ 5.00 hrs, Volume= 0.796 af, Incl. 0.64 cfs Base Flow Outflow = 0.64 cfs @ 5.00 hrs, Volume= 0.796 af, Atten= Lag= 0.0 min Primary = 0.64 cfs @ 5.00 hrs, Volume= 0.796 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 26.35' @ 5.00 hrs Flood Elev= 34.69' Device Routing Invert Outlet Devices #1 Primary 25.25' 8.0" x 14.6' long 8" ecostorm plus outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 25.16' S= 0.0062 Cc= 0.900 n= 0.010 ---PAGE BREAK--- Rainfall not specified McRedmond ecoStorm Plus - 50-year Page 5 Prepared by Royal Environmental Systems, Inc. 3/28/2007 11:17:49 AM HydroCAD® 8.00 s/n 003782 © 2006 HydroCAD Software Solutions LLC Primary OutFlow Max=0.65 cfs @ 5.00 hrs HW=26.35' TW=26.20' (Fixed TW Elev= 26.20') 1=8" ecostorm plus outlet pipe (Inlet Controls 0.65 cfs @ 1.86 fps) Pond 8P: structure G on plans collection manhole for plus' 1-2 Inflow = 1.28 cfs @ 5.00 hrs, Volume= 1.592 af, Incl. 1.28 cfs Base Flow Outflow = 1.28 cfs @ 5.00 hrs, Volume= 1.592 af, Atten= Lag= 0.0 min Primary = 1.28 cfs @ 5.00 hrs, Volume= 1.592 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 26.32' @ 5.00 hrs Flood Elev= 33.94' Device Routing Invert Outlet Devices #1 Primary 24.27' 12.0" x 20.2' long 12" outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 24.18' S= 0.0045 Cc= 0.900 n= 0.010 PVC, smooth interior Primary OutFlow Max=1.29 cfs @ 5.00 hrs HW=26.32' TW=26.20' (Fixed TW Elev= 26.20') 1=12" outlet pipe (Inlet Controls 1.29 cfs @ 1.65 fps) Pond 9P: structure H on plans collection manhole for plus' 3-4 Inflow = 2.56 cfs @ 5.00 hrs, Volume= 3.184 af, Incl. 2.56 cfs Base Flow Outflow = 2.56 cfs @ 5.00 hrs, Volume= 3.184 af, Atten= Lag= 0.0 min Primary = 2.56 cfs @ 5.00 hrs, Volume= 3.184 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs Peak Elev= 26.20' @ 5.00 hrs Flood Elev= 34.44' Device Routing Invert Outlet Devices #1 Primary 24.18' 12.0" x 18.1' long 12" outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 24.10' S= 0.0044 Cc= 0.900 n= 0.010 PVC, smooth interior Primary OutFlow Max=2.56 cfs @ 5.00 hrs HW=26.20' TW=25.74' (Fixed TW Elev= 25.74') 1=12" outlet pipe (Inlet Controls 2.56 cfs @ 3.26 fps) Pond 10P: structure 13 on plans Inflow = 2.56 cfs @ 5.00 hrs, Volume= 3.184 af, Incl. 2.56 cfs Base Flow Outflow = 2.56 cfs @ 5.00 hrs, Volume= 3.184 af, Atten= Lag= 0.0 min Primary = 2.56 cfs @ 5.00 hrs, Volume= 3.184 af Routing by Stor-Ind method, Time Span= 5.00-20.00 hrs, dt= 0.05 hrs ---PAGE BREAK--- Rainfall not specified McRedmond ecoStorm Plus - 50-year Page 6 Prepared by Royal Environmental Systems, Inc. 3/28/2007 11:17:49 AM HydroCAD® 8.00 s/n 003782 © 2006 HydroCAD Software Solutions LLC Peak Elev= 25.74' @ 5.00 hrs Flood Elev= 34.00' Device Routing Invert Outlet Devices #1 Primary 24.10' 12.0" x 19.0' long 12" outlet pipe CPP, square edge headwall, Ke= 0.500 Outlet Invert= 24.01' S= 0.0047 Cc= 0.900 n= 0.010 PVC, smooth interior Primary OutFlow Max=2.56 cfs @ 5.00 hrs HW=25.74' TW=25.28' (Fixed TW Elev= 25.28') 1=12" outlet pipe (Inlet Controls 2.56 cfs @ 3.26 fps)