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FINAL Dumas Seed Facility in Moscow, Idaho Extended Phase II Environmental Site Assessment Report Prepared for: City of Moscow 206 E. 3rd Street Moscow, Idaho 83843 Prepared by: 121 S. Jackson St. Moscow, ID 83843 www.terragraphics.com August 26, 2013 ---PAGE BREAK--- ---PAGE BREAK--- FINAL – Dumas Seed Facility Extended Phase II ESA Report iii Table of Contents Executive Summary vi Section 1.0 Site Introduction and History 1 1.1 Site History 1 1.2 Summary of Previous Assessments 1 1.2.1 2007 Phase I ESA 1 1.2.2 2007 Asbestos Abatement 2 1.2.3 2012 Phase I ESA 2 1.2.4 April 2012 Phase II ESA 3 1.2.5 October 2012 Supplemental Phase II ESA 4 Section 2.0 Surface Soil 6 Section 3.0 Surface Soil Results and Discussion 8 Section 4.0 Quality Control 12 Section 5.0 Risk Evaluation 13 5.1 Site Conceptual Model 13 5.1.1 Primary Source 13 5.1.2 Fate and Transport 13 5.1.3 Exposure Pathways 13 5.1.3.1 Direct Contact 13 5.1.3.2 Inhalation 14 5.2 Risk-Evaluation-1 14 5.2.1 DM-1: Single ISM Sample from DU 4 14 5.2.2 DM-2: Mean Concentration from DU 4 14 5.2.3 DM-3: 95% UCL Concentration from DU 4 15 Section 6.0 Conclusions and Recommendations 16 6.1 Conclusions 16 6.2 Recommendations 16 Section 7.0 References and Resources Used 17 ---PAGE BREAK--- FINAL – Dumas Seed Facility Extended Phase II ESA Report iv List of Figures Figure 1. Site Vicinity Map 5 Figure 2. Decision Unit and Sampling Location Map 7 List of Tables Table 1. Surface Soil Analytical Results Compared to the IDTL 10 Table 2. Surface Soil ISM Statistical Results 11 Appendices Appendix A Laboratory Reports A Appendix B RE-1 Risk Information B ---PAGE BREAK--- FINAL – Dumas Seed Facility Extended Phase II ESA Report v Acronyms and Abbreviations cm centimeter COC Contaminant of Concern CV Coefficient of Variation DM Decision Mechanism DU Decision Unit EDB ethylene dibromide ESA Environmental Site Assessment HI hazard index HQ hazard quotients IDEQ Idaho Department of Environmental Quality IDTL Initial Default Target Level IELCR individual excess lifetime cancer risk ISM Incremental Sampling Methodology mg/kg milligram per kilogram NA Not Applicable ND Not Detected PAH aromatic hydrocarbon PQL practical quantitation limit QAPP Quality Assurance Project Plan QA/QC quality assurance/quality control RATL remedial action target level RCRA Resource Conservation and Recovery Act REC Recognized Environmental Condition ROE route of exposure RPD Relative Percent Difference RSD Relative Standard Deviation SU Sample Unit SVOC semi-volatile organic compound TerraGraphics TerraGraphics Environmental Engineering, Inc. Tetra Tech Tetra Tech, Inc. UCL Upper Confidence Limit USEPA US Environmental Protection Agency UST underground storage tank VOC volatile organic compound ---PAGE BREAK--- FINAL – Dumas Seed Facility Extended Phase II ESA Report vi Executive Summary The Dumas Seed Facility (hereinafter referred to as the “Site”) is bounded to the north by West A Street, to the east by North Almon Street, to the west by North Asbury Street, and to the south by residential properties in Moscow, Idaho. The Site was used as a grain, pea, and lentil processing and storage facility that had operated for at least 100 years. Pesticides, rodenticides, fumigants, and possibly fungicides may have been repeatedly applied to the structures on the Site and around the exteriors of the Site structures (TerraGraphics, 2007; Tetra Tech, 2012). Through the US Environmental Protection Agency (USEPA) Brownfields Assessment Coalition Grant held by the City of Moscow, Tetra Tech, Inc. (Tetra Tech) performed a Phase I Environmental Site Assessment (ESA) in February 2012. Based on recognized environmental conditions (RECs), Tetra Tech conducted Phase II ESA sampling activities in April and October 2012 to confirm or negate the presence of pesticides and herbicides and identified dieldrin as a contaminant of concern (COC) on the subject property. In consideration of Tetra Tech’s results, the City requested additional surface soil sampling of the north portion of the Site. TerraGraphics Environmental Engineering, Inc. (TerraGraphics) conducted a sampling event in June and July 2013. The sampling and laboratory analyses identified dieldrin contamination (above the Idaho Department of Environmental Quality [IDEQ] Initial Default Target Level [IDTL]; IDEQ, 2004) for direct contact in Site surface soils on the south boundary of the sampling area. TerraGraphics conducted a Risk Evaluation on dieldrin concentrations from this area of the site using the REM. Modeling results show dieldrin concentrations exceed the acceptable risk for the residential (child and age-adjusted) receptors. However, model results show that dieldrin risk concentrations were acceptable for the non- residential and construction worker receptors. The non-cancer risk for all receptors was not exceeded using any calculated concentrations. Based upon the available information, TerraGraphics recommends the following options: limiting the Site to industrial use, implementing institutional controls to break dermal and ingestion pathway, or removing and properly disposing of contaminated surface soil. ---PAGE BREAK--- FINAL – Dumas Seed Facility Extended Phase II ESA Report 1 Section 1.0 Site Introduction and History This report documents the extended Phase II Environmental Site Assessment (ESA) conducted at the Dumas Seed Facility Site in June and July 2013. The Site is situated in the northwest area of Moscow, Idaho, west of Main Street, and is bounded to the north by West A Street, to the east by North Almon Street, to the west by North Asbury Street, and to the south by residential properties. Figure 1 is a Site Vicinity Map. 1.1 Site History The Site was used as a grain, pea, and lentil processing and storage facility that had operated for at least 100 years (Tetra Tech, 2013). Pesticides, rodenticides, fumigants, and possibly fungicides may have been repeatedly applied to the structures on the Site and around the exteriors of the Site structures. The Site previously included a railroad branch line that terminated near the corner of North Almon and West A streets. This spur was used at least occasionally into the early 21st Century before being decommissioned and dismantled. The Site had at least one, and possibly two, underground storage tanks (USTs). One UST that contained gasoline was reportedly removed in the 1990s. The other possible on-site UST potentially held heating fuel oil. It is unknown whether that tank was removed but it may have serviced the Scale House with heating fuel oil for a heating system. At the time of the 2012 Phase I ESA (completed by Tetra Tech, Inc. [Tetra Tech]), there was no heating system for the Scale House other than a kerosene space heater. The Site also contained a large warehouse. The warehouse was a four-story, wood post and beam structure with a corrugated metal exterior and was located on the northern and northwestern portions of the Site. The building was mostly intact, with dismantling activities taking place on the top floor. The warehouse was reportedly used for sorting and screening pea and lentil products and included many transfer chutes and scoop-type conveyor belts. The structure also included an electrically-powered lift/elevator. A covered load-out drive-through for farm trucks was located on the northwestern side of the warehouse structure. Concrete ramps for the drive-through were present on West A Street and on North Asbury Street. While completing the Phase I ESA of the Site in February 2012, Tetra Tech noted that several Site buildings were being dismantled in order to salvage the wood and recycle metal used to construct those structures. Salvaged lumber and beams were stacked in eastern portions of the Site at the time of the site visit, while wood and metal demolition debris was present on the southern and central portions of the Site. 1.2 Summary of Previous Assessments 1.2.1 2007 Phase I ESA In June 2007, TerraGraphics conducted a Phase I ESA entitled Phase I Environmental Site Assessment Report, 109 North Almon Street, Moscow, Idaho 83843 (TerraGraphics, 2007). ---PAGE BREAK--- FINAL – Dumas Seed Facility Extended Phase II ESA Report 2 TerraGraphics identified the following recognized environmental conditions (RECs) in its Phase I ESA: The presence of oil stains on the second floor and main floor of the processing mill, as well as in the boiler room. The presence of several unlabeled and labeled 5-gallon, 30-gallon, and 55-gallon drums containing insecticides, wood coatings (polyurethane and paint), lubricants, and oils throughout the processing and farm store building, as well as inadequate spill containment for these containers. The presence of mold in the basement of the processing mill. The potential for asbestos in building materials throughout the entire subject property. The potential for lead-based paint on all the buildings throughout the Site. Historical use of fumigants and /or pesticides (pre-1974) for pest control in pea and grain storage areas. High potential for radon inside the buildings based on the US Environmental Protection Agency (USEPA) classification for Latah County. A removal report noted a previous UST used to store automobile fuel, but reportedly no soil samples were obtained at the time of tank removal. 1.2.2 2007 Asbestos Abatement IRS Environmental performed an asbestos abatement of the structures on the Site in September 2007. IRS Environmental disposed of the asbestos-containing material at a USEPA-approved facility. Air sample clearance results were less than 0.01 fibers per cubic centimeter (IRS Environmental, 2007). Based on the results, the buildings were cleared for demolition work. 1.2.3 2012 Phase I ESA Tetra Tech conducted a Phase I ESA at the Site in February 2012 through the USEPA Brownfields Assessment Coalition Grant held by the City of Moscow. Tetra Tech identified the following RECs in its Phase I ESA (Tetra Tech, 2012): The Site had been used as a grain, pea, and lentil processing and storage facility for at least 100 years. Over this time pesticides, rodenticides, fumigants, and possibly fungicides were repeatedly applied to the structures on the Site and around the exteriors of the Site structures. Metals-based pesticides, organochlorine pesticides, and organophosphate pesticides are considered RECs for soil at the Site. A UST for automotive fuel was located in the general vicinity of the Scale House structure. This UST was reportedly removed in the 1990s. No records were found to indicate if any contamination was associated with the gasoline UST. Also, Idaho Department of Environmental Quality (IDEQ) records indicated two USTs at the Site but it was unclear as to whether the second UST had been removed. In the absence of data to the contrary, the potential for residual petroleum contamination in the subsurface of the Site in the area of the former UST(s) is considered to represent a REC in connection with the Site. ---PAGE BREAK--- FINAL – Dumas Seed Facility Extended Phase II ESA Report 3 The residual containers of pesticides, fumigants, petroleum lubricants, and other materials left at the Site by previous owner/operators are considered to represent RECs in connection with the Site. Tetra Tech recommended a Phase II ESA to obtain more information about the Site and removal of chemical containers. 1.2.4 April 2012 Phase II ESA Containers of pesticides, fumigants, and petroleum lubricants, and other containers with residual products were removed by a contractor hired by ReHistoric prior to the Phase II ESA. Tetra Tech conducted a Phase II ESA at the Site in April 2012 (Tetra Tech, 2013). Personnel collected surface soil samples, advanced borings and collected subsurface soil samples, installed monitoring wells, and sampled groundwater. Tetra Tech performed area-wide surface soil sampling from hand-excavated test pits for pesticides (including organochlorine- and organophosphate-based pesticides), herbicides, and “RCRA 8” (Resource Conservation and Recovery Act) metals and copper based on multiple previous applications of pesticides, rodenticides, fumigants, and possibly fungicides within and around the Site structures. Several metals and pesticides in most of the soil samples exceeded the Initial Default Target Levels (IDTLs; IDEQ, 2004) and remedial action target levels (RATLs; IDEQ, 2004). These surface soil sample locations that exhibited contaminant of concern (COC) concentrations exceeding IDTLs and RATLs were widespread and not located in one centralized portion of the site. This may indicate widespread usage and/or redistribution of contaminants through site activities. Tetra Tech advanced five borings in the Scale House/UST area to evaluate potential petroleum hydrocarbon impacts associated with one to two former USTs at the Site. Six soil samples were collected from borings and tested for VOCs, ethylene dibromide (EDB), aromatic hydrocarbons (PAHs), and lead. One sample had a lead concentration of 103.7 milligrams per kilogram [mg/kg]), which is above the IDTL of 49.6 mg/kg (lead has no RATL through the REM [IDEQ, 2004]). All other detected sample results (acetone, benzene, carbon disulfide, and semi-VOCs [SVOCs]) were below their respective IDTLs. Tetra Tech also advanced four borings at the monitoring well locations prior to well installation. Five soil samples were collected from all but one boring and analyzed for VOCs, EDB, PAHs, pesticides, herbicides, and RCRA 8 metals and copper. Laboratory results reveal metal detections in several samples; arsenic and mercury were above regulatory standards in at least one sample. A small number of VOCs were detected in several soil samples; however, concentrations were only above the analytical method detection limit and did not exceed regulatory standards. Endrin ketone (pesticide) was also detected in one sample; there is no IDTL or RATL. Tetra Tech installed four groundwater monitoring wells. Groundwater samples were collected from each well and tested for VOCs, EDB, PAHs, pesticides, herbicides, and RCRA 8 metals and copper. Although several metals, naphthalene (PAH), Dalapon (herbicide), and Beta-BHC (pesticide) were detected in the groundwater samples; none had concentrations exceeding regulatory standards. ---PAGE BREAK--- FINAL – Dumas Seed Facility Extended Phase II ESA Report 4 1.2.5 October 2012 Supplemental Phase II ESA Preliminary results of the April 2012 investigation (Tetra Tech, 2013) indicated widespread distribution of several COCs across surface soil sampled from the 0- to 6-inch depth interval at the Site. Therefore, additional characterization and risk evaluation of site soil was deemed necessary to further evaluate potential risk. Tetra Tech divided the site into three Decision Units (DUs): 1) the warehouse building (north DU; NDU) 2) the mill building (south DU; SDU) 3) the railroad line (RDU) The RDU was split into a west and an east Sample Units (SU) and the other two had only one SU. The field crew collected samples from 0 to 1 feet in depth from each DU; the RDU also had samples collected from 1 to 2 feet in depth. Samples were submitted to the laboratory for analysis of herbicides, pesticides, RCRA 8 metals, and copper. Results from the October 2012 surface soil sampling indicated arsenic and lead were the predominant metals detected in the samples. Several samples exceeded the RATL of 0.279 mg/kg for arsenic and one sample exceeded the RATL of 49.6 mg/kg for lead. However, these concentrations did not exceed the background soil concentration for arsenic in the Spokane, Washington area (15 mg/kg; WDOE, 1994) or the lead cleanup value established for USEPA Risk-based Screening level for residential soil (400 mg/kg; USEPA, 2012). All of the soil samples exhibited detectable concentrations of several pesticides, indicating widespread usage or redistribution through site activities. However, only the dieldrin concentration detected in the northern DU exceeded the RATL. Tetra Tech conducted an IDEQ REM Risk Evaluation for each DU with further evaluation of dieldrin in the north DU. Modeled results for the north DU show dieldrin exceeds the RATL of 0.15 mg/kg. ---PAGE BREAK--- ---PAGE BREAK--- FINAL – Dumas Seed Facility Extended Phase II ESA Report 6 Section 2.0 Surface Soil Sampling Results of the Tetra Tech investigation indicated dieldrin concentrations in the north DU exceed the action level. Therefore, additional surface soil characterization of this DU and risk evaluation of site soil were deemed necessary to further define the area and to evaluate potential risk. TerraGraphics partitioned the north DU from Tetra Tech’s investigation into six smaller DUs based on the historical use, prominent site features of the property, or future use of the property. Sampling areas were focused around the perimeter of the warehouse. DUs are described as follows (see Figure DU 1 – northwest corner of the property at the intersection of Asbury Street and A Street DU 2 – north boundary of the property along A Street DU 3 – northeast corner of the property at the intersection of A Street and Almon Street DU 4 – south boundary of sampling area trending southwest-northeast (along the orientation of the prior railroad branch line) DU 5 – southwest corner of the property along Asbury Street DU 6 – west boundary of the property along Asbury Street TerraGraphics overlaid a numbered grid on a map of each DU and used a random number generator (to support statistical significance and reduce bias) to identify 30 grid cell increments. These 30 increments comprised one SU sample. SU identification was conducted in triplicate so each DU would have three replicate samples in order to evaluate the sampling, preparation, and analytical process variability. Each replicate sample had a unique set of SUs. Figure 2 shows the sample locations. Certain areas of some of the DUs could not be sampled due to the creek and concreted areas. In June and July 2013, TerraGraphics completed the sampling in accordance with the Updated - Quality Assurance Project Plan: Dumas Seed Facility, Moscow, Idaho Phase II Environmental Site Assessment (TerraGraphics, 2013). TerraGraphics collected surface soil samples following the Incremental Sampling Methodology (ISM) Technical and Regulatory Guidance document (ITRC, 2012) and Draft Guidance on MULTI INCREMENT Soil Sampling (State of Alaska Department of Environmental Conservation, 2009). The field crew collected three 30-increment ISM surface soil samples from each of the six DUs. They collected the samples from the top 1.0 inch of the soil horizon using a dedicated stainless steel trowel. Multi-increment sample aliquots comprised approximately equal volumetric proportions. Each SU aliquot was split in half, with one split portion saved in a bag for additional analysis if necessary. The field crew placed the 30 increments in a plastic bag and then mixed/homogenized the composited sample. A portion of the homogenized sample was submitted for laboratory analysis. The remaining portion was stored. The field crew conducted this process for the replicate sample in DU 5. ---PAGE BREAK--- ---PAGE BREAK--- FINAL – Dumas Seed Facility Extended Phase II ESA Report 8 Section 3.0 Surface Soil Results and Discussion TerraGraphics collected 18 ISM soil samples from 6 DUs (3 replicates from each DU). Samples were analyzed for organochlorine pesticides by USEPA method 8081B (USEPA, 2007). Only dieldrin results are discussed further because other organochlorine pesticide concentrations were not significant based on Tetra Tech’s conclusions (2013). Table 1 lists the dieldrin results from the surface soil samples compared to the IDTL. The laboratory results are included in Appendix A. Five of the six DUs had dieldrin detections; all ISM samples in DU 6 were below the practical quantitation limit (PQL). DU 4 was the only area to have dieldrin concentrations above the IDTL for dermal contact; however, only two of the three ISM samples had concentrations exceeding the IDTL. There are several Decision Mechanisms (DMs) available to evaluate the surface soil analytical data (ITRC, 2012). The following DMs fit the Site objectives and are evaluated for this Site: DM-1: Single ISM sample is compared to IDTLs. This is useful when the concentration of the sample is well below or well above the IDTLs. DM-2: The mean concentration of the replicates is calculated and compared to the IDTLs. The mean of the replicates is likely closer to the true mean of the DU in comparison to DM-1. DM-3: The 95% upper confidence limit (UCL) on the mean of replicate data from the DU is compared to the IDTLs. The UCL is essentially “a measure of the confidence in the estimate of the ‘grand mean,’ or the overall mean of the individual means given by each replicate sample” 73 ITRC, 2012). The 95% UCL is calculated so that statistically, for 95 out of 100 means calculated for the sample population, the UCL will be greater than or equal to the population’s true mean. This DM minimizes potential errors from using only the average concentration (DM-2) if high heterogeneity exists. Table 2 lists the surface soil ISM analytical results with concentrations above the detection limits, and replicate sample data statistical calculations including the following: Skewness measures the asymmetry in the data. A skewness of zero indicates the individual sample results are evenly distributed on both sides of the mean. A positive skewness indicates a wide range of concentrations and a longer right tail of a probability distribution curve, whereas negative skewness indicates that the mass of the distribution has relatively few low values and a “tail” of higher values. Standard deviation is the amount of variation from the average. Mean is the average of the three replicate samples. Coefficient of variation (CV) or relative standard deviation (RSD) is a measure of data dispersion or variability. The CV or RSD is the standard deviation divided by the mean. If the CV is ≤1.5 the variability is low. If the CV is 1.5 to ≤3 the variability is medium. If the CV is >3 the variability is high. Concentrations at or near the reporting limit may show greater variability and provide high CV values. 95% UCL of the contaminant (Student’s-t distribution) is described above. Non-detects are represented by the PQL in instances where DUs have a combination of detects and non-detects. Conservative mean values can be calculated despite high RSD values. ---PAGE BREAK--- FINAL – Dumas Seed Facility Extended Phase II ESA Report 9 Relative percent difference (RPD) is the magnitude of difference between the UCL and true mean. TerraGraphics used the CV or RSD, 95% UCL, and RPD to evaluate the performance of the sampling approaches in providing accurate estimates of the mean and the 95% UCL. DU 6 is not evaluated because all ISM samples had non-detected results. As mentioned above, the ISM results indicate the IDTLs were only exceeded in DU 4 at the Site. Based on DM-1 (single sample result), dieldrin concentrations exceeded the IDTLs in DU 4. Using DM-2 (replicate mean) and DM-3, dieldrin concentrations also exceed the IDTLs in DU 4. All of the CV values are less than 1.5, indicating these samples have a low variability and suggesting ISM method is valid. For DM-3 (95% UCL [Student’s-t]), dieldrin concentrations exceeded the IDTL in DU 4. The 95% UCL in DU 4 is elevated to account for the uncertainty in such a small sample size. The RPDs are low and range from 0.43% (DUs 2 and 5) to 0.69% (DU indicating a small difference between the UCL and true mean. ---PAGE BREAK--- Table 1 Surface Soil Analytical Results Compared to the IDTL Dumas Seed Facility Moscow, Idaho IDTL (mg/kg) Critical Pathway Critical Receptor Dieldrin <0.01 0.0116 0.0253 0.3 Direct contact IDTL (mg/kg) Critical Pathway Critical Receptor Dieldrin <0.01 0.0172 0.0103 0.3 Direct contact IDTL Critical Critical Dieldrin 0.0117 0.027 0.0266 0.3 Direct contact IDTL (mg/kg) Critical Pathway Critical Receptor Dieldrin 0.253 0.687 0.563 0.3 Direct contact IDTL (mg/kg) Critical Pathway Critical Receptor Dieldrin 0.0807 0.108 0.154 0.3 Direct contact IDTL Critical Critical Dieldrin <0.01 <0.01 <0.01 0.3 Direct contact Notes: 1Analyzed using USEPA 8081A Organo-chlorine Pesticides Practical Quantitation Limit = 0.01 mg/kg Bold values indicate concentration exceeding the IDTL mg/kg = milligram per kilograpm IDTL = Initial Default Target Level NA = not applicable Analyte1 DS-U1-1 (mg/kg) DS-U1-2 (mg/kg) DS-U1-3 (mg/kg) Analyte1 ISM2-W (mg/kg) ISM2-P (mg/kg) ISM2-R (mg/kg) 2004 REM Screening Levels 2004 REM Screening Levels Analyte1 DS-U1-1 (mg/kg) DS-U1-2 (mg/kg) DS-U1-3 (mg/kg) Analyte1 ISM6-W ISM6-P ISM6-R Decision Unit 6 2004 REM Screening Levels Decision Unit 1 Decision Unit 2 Decision Unit 3 Decision Unit 4 Decision Unit 5 2004 REM Screening Levels Analyte1 DS-U1-1 (mg/kg) DS-U1-2 (mg/kg) DS-U1-D (mg/kg) 2004 REM Screening Levels Analyte1 ISM3-W ISM3-P ISM3-R 2004 REM Screening Levels ---PAGE BREAK--- Table 2 Surface Soil ISM Statistcal Results Dumas Seed Facility Moscow, Idaho Skewness Standard Deviation Mean CV/RSD t 95% UCL (student's-t distribution) RPD Dieldrin (mg/kg) 0.01** 0.0116 0.0253 1.66 0.0097 0.0185 0.53 2.92 0.035 0.61 The PQL value was used for DS-U1-1 Skewness Standard Deviation Mean CV/RSD t 95% UCL (student's-t distribution) RPD Dieldrin (mg/kg) 0.01** 0.0172 0.0103 1.72 0.0049 0.0138 0.35 2.92 0.022 0.46 The PQL value was used for ISM2-W Skewness Standard Deviation Mean CV/RSD t 95% UCL (student's-t distribution) RPD Dieldrin (mg/kg) 0.0117 0.027 0.0266 -1.73 0.0087 0.0218 0.40 2.92 0.036 0.50 Skewness Standard Deviation Mean CV/RSD t 95% UCL (student's-t distribution) RPD Dieldrin (mg/kg) 0.253 0.687 0.563 -1.15 0.2235 0.5010 0.45 2.92 0.878 0.55 Skewness Standard Deviation Mean CV/RSD t 95% UCL (student's-t distribution) RPD Dieldrin (mg/kg) 0.0807 0.108 0.154 0.74 0.0370 0.1142 0.32 2.92 0.177 0.43 Notes: * Analyzed using USEPA 8081A Organo-chlorine Pesticides PQL = Practical Quantitation Limit (0.01 mg/kg) Bold values indicate concentration exceeding the IDTL of 0.3 mg/kg mg/kg = milligram per kilograpm CV = coefficient of variation (standard deviation/mean) RSD = relative standard deviation t = (1-α)(r-1) I where: α=0.05; r=count or 3 UCL = upper confidence limit (mean + I where: σ=standard deviation; r=count or 3 (http://www.itrcweb.org/ism-1/4_2_2_UCL_Calculation_Method.html) RPD = reported percent difference (ABS(X1-X2)/((X1+X2)/2)) I where: X1=mean; X2=UCL Comments Analyte* ISM2-W ISM2-P ISM2-R Comments Analyte* DS-U1-3 DS-U1-2 DS-U1-1 Decision Unit 1 Comments Analyte* DS-U1-1 DS-U1-2 DS-U1-D Decision Unit 4 Comments Analyte* ISM3-W ISM3-P Decision Unit 2 Comments ISM3-R Analyte* DS-U1-1 DS-U1-2 DS-U1-3 Decision Unit 5 Decision Unit 3 ---PAGE BREAK--- FINAL – Dumas Seed Facility Extended Phase II ESA Report 12 Section 4.0 Quality Control TerraGraphics considers the soil dataset to be of acceptable quality based on results from the field and laboratory QC samples. All laboratory control, laboratory control duplicate, matrix spike, matrix spike duplicate, and method blank samples are within the guidelines set forth by the laboratory. See Attachment A for the laboratory reports. ---PAGE BREAK--- FINAL – Dumas Seed Facility Extended Phase II ESA Report 13 Section 5.0 Risk Evaluation TerraGraphics conducted a Risk Evaluation for DU 4 to evaluate risk to residential, non- residential, and construction worker receptors. As part of the Risk Evaluation a Site Conceptual Model (SCM) is described and a Risk Evaluation-1 conducted. 5.1 Site Conceptual Model The SCM describes potential chemical sources, release mechanisms, environmental transport processes, exposure routes, and receptors at a location, property, or site. The purpose of a SCM is to describe the routes or pathways by which humans may be exposed to contaminants at the site. Completed exposure pathways were evaluated as part of this Risk Evaluation. A complete exposure pathway consists of four necessary elements: i) a source and mechanism of chemical release to the environment, ii) an environmental transport medium for a released chemical, iii) a point of potential human contact with the impacted medium (referred to as the exposure point), and iv) an exposure route soil ingestion) at the exposure point. The SCM for the site, based on information that has been collected to date, is discussed in the sub-sections below. 5.1.1 Primary Source The majority of chemical impacts at the site resulted from insecticide application to the Site structures and around the exteriors of the Site structures. In order to characterize Site contamination, surface soil samples were collected from six DUs and analyzed for dieldrin. Dieldrin was above the screening level (IDTL) in two replicates of DU 4. 5.1.2 Fate and Transport Dieldrin may have been released from insecticide application during the time when the Site was used as a grain, pea, or lentil processing and storage facility. Dieldrin bioconcentrates and biomagnifies through the terrestrial and aquatic food chains. Transport of dieldrin in soils is minimal because this compound tends to bind to soil. Based on its physical properties, volatilization of dieldrin from soil surfaces occurs in extremely wet conditions (ATSDR, 2011: Section 6.1; http://www.atsdr.cdc.gov/toxprofiles/tp.asp?id=317&tid=56, accessed July 31, 2013). 5.1.3 Exposure Pathways 5.1.3.1 Direct Contact Laboratory results indicate that Site soils have been impacted by dieldrin; samples were collected from the top one inch of surface soil. The Site is currently not in use with the exception of the warehouse demolition. There should not be direct contact with contaminated soils. However, potential future development activities may result in direct contact of subsurface soils by Site construction workers. As a result, the direct contact soil exposure pathway is considered completed. ---PAGE BREAK--- FINAL – Dumas Seed Facility Extended Phase II ESA Report 14 5.1.3.2 Inhalation Due to the volatile nature of dieldrin or through activities that could stir up the soil, it is possible that dieldrin vapors found in Site soil could migrate into the Site buildings. The Site is currently vacant, but any future occupational uses could result in completion of the indoor air inhalation pathway. 5.2 Risk-Evaluation-1 Based on initial screening level criteria exceedance for Site dieldrin in soil, a Risk Evaluation-1 was completed for DU 4. This RE-1 considers the Residential, Non-Residential, and Construction Worker scenarios based on current and unknown future uses of the Site. Risk and hazard calculations for dieldrin were completed using a standard set of risk equations provided by the REM software (IDEQ, 2004). TerraGraphics ran the model using the highest concentration of the three sample replicates for DU 4 and using the mean concentration of the three samples. Generally in a risk evaluation, the combined exposure to all carcinogens and routes of exposure (ROE) must have an individual excess lifetime cancer risk (IELCR) that is less than or equal to 1.0x10-5 (acceptable Risk) for a receptor at a reasonable maximum exposure. Additionally, the summation of hazard quotients (HQs) for all chemicals that have non-carcinogenic health effects and routes of exposure must be less than or equal to 1.0 (acceptable Hazard Index 5.2.1 DM-1: Single ISM Sample from DU 4 The maximum concentration for the ISM from DU 4 that exceeded the initial screening level was entered into the model. Software default values were used for exposure factors, fate and transport parameters, and decay rates. Estimated risk for the residential receptor-child was 2.08x10-5 and the estimated risk for the residential receptor-age adjusted was 3.08x10-5, which both exceed acceptable risk levels. Estimated risk for the non-residential receptor was 1.12x10-6 and estimated risk for the construction worker receptor was 1.43x10-7; both meet acceptable risk levels. Estimated non-cancer risk for the residential receptor-child was 0.304 and the estimated non- cancer risk for the residential receptor-age adjusted was 0.0899. Additionally, estimated non- cancer risk for the non-residential receptor was 0.0149 and estimated non-cancer risk for the construction worker receptor was 0.0125. These HIs meet acceptable non-cancer risk levels. 5.2.2 DM-2: Mean Concentration from DU 4 The mean concentration from DU 4 for dieldrin was entered into the model. Software default values were used for exposure factors, fate and transport parameters, and decay rates. Estimated risk for the residential receptor-child was 1.52x10-5 and the estimated risk for the residential receptor-age adjusted was 2.25x10-5, which both exceed acceptable risk levels. Estimated risk for the non-residential receptor was 8.20x10-7 and estimated risk for the construction worker receptor was 1.05x10-7; both meet acceptable risk levels. Estimated non-cancer risk for the residential receptor-child was 0.221 and the estimated non- cancer risk for the residential receptor-age adjusted was 0.0655. Additionally, estimated non- ---PAGE BREAK--- FINAL – Dumas Seed Facility Extended Phase II ESA Report 15 cancer risk for the non-residential receptor was 0.0109 and estimated non-cancer risk for the construction worker receptor was 0.00915. These HIs meet acceptable non-cancer risk levels. 5.2.3 DM-3: 95% UCL Concentration from DU 4 The 95% UCL concentration from DU 4 for dieldrin was entered into the model. Software default values were used for exposure factors, fate and transport parameters, and decay rates. Estimated risk for the residential receptor-child was 2.66x10-5 and the estimated risk for the residential receptor-age adjusted was 3.94x10-5, which both exceed acceptable risk levels. Estimated risk for the non-residential receptor was 1.44x10-6 and estimated risk for the construction worker receptor was 1.83x10-7; both meet acceptable risk levels. Estimated non-cancer risk for the residential receptor-child was 0.388 and the estimated non- cancer risk for the residential receptor-age adjusted was 0.115. Additionally, estimated non- cancer risk for the non-residential receptor was 0.0191 and estimated non-cancer risk for the construction worker receptor was 0.00160. These HIs meet acceptable non-cancer risk levels. ---PAGE BREAK--- FINAL – Dumas Seed Facility Extended Phase II ESA Report 16 Section 6.0 Conclusions and Recommendations 6.1 Conclusions The surface soil results indicate that dieldrin contamination in exceedance of the IDTL for direct contact is located at the Site along the south boundary that trends southwest-northeast (DU 4) only. Results of the Risk Evaluation conducted using the REM show dieldrin concentrations exceed the acceptable risk for the residential (child and age-adjusted) receptors using the highest of the replicate samples from DU 4, the mean concentration from DU 4, and the 95% UCL from DU 4. However, model results show dieldrin risk concentrations were acceptable for non- residential and construction worker receptors. The non-cancer risk for all receptors was not exceeded using any of the calculated concentrations. 6.2 Recommendations Based on the data from the extended Phase II ESA and risk analysis, TerraGraphics recommends selecting one of the following options for reducing risk at DU 4: Limit the Site to industrial use through a deed restriction. Implement institutional controls barriers) to break the dermal and ingestion pathway. Remove and dispose of contaminated surface soils from within DU 4. ---PAGE BREAK--- FINAL – Dumas Seed Facility Extended Phase II ESA Report 17 Section 7.0 References and Resources Used State of Alaska Department of Environmental Conservation, 2009. Draft Guidance on MULTI INCREMENT Soil Sampling. ADEC Division of Spill Prevention and Response: Contaminated Sites Program. Idaho Department of Environmental Quality (IDEQ), 2004. Risk Evaluation Manual, 1410 North Hilton, Boise, Idaho 83706. IRS Environmental, 2007. Asbestos Removal from Columbia Grain, 103/109 North Almon, Moscow, Idaho. Letter dated September 19, 2007, to Russ Braun of Columbia Grain, Inc. Interstate Technology & Regulatory Council (ITRC) Incremental Sampling Methodology Team, 2012. Incremental Sampling Methodology Technical and Regulatory Guidance. TerraGraphics Environmental Engineering, Inc. (TerraGraphics), 2007. Phase I Environmental Site Assessment Report, 109 North Almon Street, Moscow Idaho 83843. Prepared for David Ollivant, ST Moscow, LLC. June. TerraGraphics, 2011. Master Quality Assurance Project Plan for the City of Moscow Brownfields Phase II Environmental Site Assessments, Moscow, Idaho. October 31. TerraGraphics, 2013. Update - Quality Assurance Project Plan: Dumas Seed Facility, Moscow, Idaho Phase II Environmental Site Assessment. Prepared for the City of Moscow, May. Tetra Tech, Inc. (Tetra Tech), 2012. Final Phase I Environmental Site Assessment, Old Dumas Seed Site, 103 North Almon, Moscow, Idaho. February 20. Tetra Tech, 2013. Final Phase II Environmental Site Assessment, Old Dumas Seed Site 103 North Almon Street, Moscow, Idaho. Prepared for the City of Moscow, April 17. USEPA, 2007. Method 8081B Organochlorine Pesticides by Gas Chromatography. February 2007: Revision 2. USEPA, 2012. Regional Screening Levels (RSLs) Summary Table. Dated November 2012. Washington Department of Ecology (WDOE), 1994. Natural Background Soil Metals Concentrations in Washington State. Toxics Cleanup Program, Department of Ecology. Publication# 94-115. October. ---PAGE BREAK--- FINAL – Dumas Seed Facility Extended Phase II ESA Report A Appendix A Laboratory Reports ---PAGE BREAK--- Client: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING Attn: ROBIN NIMMER Address: 121 S. JACKSON MOSCOW, ID 83843 Analytical Results Report Batch 130618001 Project Name: DUMAS SEED Anatek Labs, Inc. 1282 Alturas Drive • Moscow, ID 83843 • (208) 883-2839 • Fax (208) 882-9246 • email [EMAIL REDACTED] 504 E Sprague Ste. D • Spokane WA 99202 • (509) 838-3999 • Fax (509) 838-4433 • email [EMAIL REDACTED] 130618001-001 Sample Number Matrix Soil Parameter Result Units Analysis Date Analyst Method Qualifier PQL Client Sample ID Sampling Date 6/5/2013 Sampling Time 2:22 PM Date/Time Received 6/18/2013 Sample Location Extraction Date ISM3-W 6/19/2013 8:10 AM Comments mg/Kg SAT 6/21/2013 Dieldrin EPA 8081A 0.0117 0.01 Percent SAT 6/19/2013 %moisture %moisture 13.3 Surrogate Data Surrogate Standard Percent Recovery Control Limits Sample Number 130618001-001 Method DCB 66.0 30-130 EPA 8081A Page 1 of 9 Tuesday, July 02, 2013 Certifications held by Anatek Labs ID: EPA:ID00013; AZ:0701; CO:ID00013; FL(NELAP):E87893; ID:ID00013; IN:C-ID-01; KY:90142; MT:CERT0028; NM: ID00013; OR:ID200001-002; WA:C595 Certifications held by Anatek Labs WA: EPA:WA00169; ID:WA00169; WA:C585; MT:Cert0095 ---PAGE BREAK--- Client: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING Attn: ROBIN NIMMER Address: 121 S. JACKSON MOSCOW, ID 83843 Analytical Results Report Batch 130618001 Project Name: DUMAS SEED Anatek Labs, Inc. 1282 Alturas Drive • Moscow, ID 83843 • (208) 883-2839 • Fax (208) 882-9246 • email [EMAIL REDACTED] 504 E Sprague Ste. D • Spokane WA 99202 • (509) 838-3999 • Fax (509) 838-4433 • email [EMAIL REDACTED] 130618001-002 Sample Number Matrix Soil Parameter Result Units Analysis Date Analyst Method Qualifier PQL Client Sample ID Sampling Date 6/5/2013 Sampling Time 2:22 PM Date/Time Received 6/18/2013 Sample Location Extraction Date ISM3-P 6/19/2013 8:10 AM Comments mg/Kg SAT 6/21/2013 Dieldrin EPA 8081A 0.0270 0.01 Percent SAT 6/19/2013 %moisture %moisture 13.4 Surrogate Data Surrogate Standard Percent Recovery Control Limits Sample Number 130618001-002 Method DCB 87.0 30-130 EPA 8081A Page 2 of 9 Tuesday, July 02, 2013 Certifications held by Anatek Labs ID: EPA:ID00013; AZ:0701; CO:ID00013; FL(NELAP):E87893; ID:ID00013; IN:C-ID-01; KY:90142; MT:CERT0028; NM: ID00013; OR:ID200001-002; WA:C595 Certifications held by Anatek Labs WA: EPA:WA00169; ID:WA00169; WA:C585; MT:Cert0095 ---PAGE BREAK--- Client: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING Attn: ROBIN NIMMER Address: 121 S. JACKSON MOSCOW, ID 83843 Analytical Results Report Batch 130618001 Project Name: DUMAS SEED Anatek Labs, Inc. 1282 Alturas Drive • Moscow, ID 83843 • (208) 883-2839 • Fax (208) 882-9246 • email [EMAIL REDACTED] 504 E Sprague Ste. D • Spokane WA 99202 • (509) 838-3999 • Fax (509) 838-4433 • email [EMAIL REDACTED] 130618001-003 Sample Number Matrix Soil Parameter Result Units Analysis Date Analyst Method Qualifier PQL Client Sample ID Sampling Date 6/5/2013 Sampling Time 2:22 PM Date/Time Received 6/18/2013 Sample Location Extraction Date ISM3-R 6/19/2013 8:10 AM Comments mg/Kg SAT 6/21/2013 Dieldrin EPA 8081A 0.0266 0.01 Percent SAT 6/19/2013 %moisture %moisture 9.2 Surrogate Data Surrogate Standard Percent Recovery Control Limits Sample Number 130618001-003 Method DCB 73.4 30-130 EPA 8081A Page 3 of 9 Tuesday, July 02, 2013 Certifications held by Anatek Labs ID: EPA:ID00013; AZ:0701; CO:ID00013; FL(NELAP):E87893; ID:ID00013; IN:C-ID-01; KY:90142; MT:CERT0028; NM: ID00013; OR:ID200001-002; WA:C595 Certifications held by Anatek Labs WA: EPA:WA00169; ID:WA00169; WA:C585; MT:Cert0095 ---PAGE BREAK--- Client: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING Attn: ROBIN NIMMER Address: 121 S. JACKSON MOSCOW, ID 83843 Analytical Results Report Batch 130618001 Project Name: DUMAS SEED Anatek Labs, Inc. 1282 Alturas Drive • Moscow, ID 83843 • (208) 883-2839 • Fax (208) 882-9246 • email [EMAIL REDACTED] 504 E Sprague Ste. D • Spokane WA 99202 • (509) 838-3999 • Fax (509) 838-4433 • email [EMAIL REDACTED] 130618001-004 Sample Number Matrix Soil Parameter Result Units Analysis Date Analyst Method Qualifier PQL Client Sample ID Sampling Date 6/5/2013 Sampling Time 3:03 PM Date/Time Received 6/18/2013 Sample Location Extraction Date ISM2-W 6/19/2013 8:10 AM Comments mg/Kg SAT 6/21/2013 Dieldrin EPA 8081A ND 0.01 Percent SAT 6/19/2013 %moisture %moisture 16.3 Surrogate Data Surrogate Standard Percent Recovery Control Limits Sample Number 130618001-004 Method DCB 92.6 30-130 EPA 8081A Page 4 of 9 Tuesday, July 02, 2013 Certifications held by Anatek Labs ID: EPA:ID00013; AZ:0701; CO:ID00013; FL(NELAP):E87893; ID:ID00013; IN:C-ID-01; KY:90142; MT:CERT0028; NM: ID00013; OR:ID200001-002; WA:C595 Certifications held by Anatek Labs WA: EPA:WA00169; ID:WA00169; WA:C585; MT:Cert0095 ---PAGE BREAK--- Client: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING Attn: ROBIN NIMMER Address: 121 S. JACKSON MOSCOW, ID 83843 Analytical Results Report Batch 130618001 Project Name: DUMAS SEED Anatek Labs, Inc. 1282 Alturas Drive • Moscow, ID 83843 • (208) 883-2839 • Fax (208) 882-9246 • email [EMAIL REDACTED] 504 E Sprague Ste. D • Spokane WA 99202 • (509) 838-3999 • Fax (509) 838-4433 • email [EMAIL REDACTED] 130618001-005 Sample Number Matrix Soil Parameter Result Units Analysis Date Analyst Method Qualifier PQL Client Sample ID Sampling Date 6/5/2013 Sampling Time 3:03 PM Date/Time Received 6/18/2013 Sample Location Extraction Date ISM2-P 6/19/2013 8:10 AM Comments mg/Kg SAT 6/21/2013 Dieldrin EPA 8081A 0.0172 0.01 Percent SAT 6/19/2013 %moisture %moisture 14 Surrogate Data Surrogate Standard Percent Recovery Control Limits Sample Number 130618001-005 Method DCB 99.8 30-130 EPA 8081A Page 5 of 9 Tuesday, July 02, 2013 Certifications held by Anatek Labs ID: EPA:ID00013; AZ:0701; CO:ID00013; FL(NELAP):E87893; ID:ID00013; IN:C-ID-01; KY:90142; MT:CERT0028; NM: ID00013; OR:ID200001-002; WA:C595 Certifications held by Anatek Labs WA: EPA:WA00169; ID:WA00169; WA:C585; MT:Cert0095 ---PAGE BREAK--- Client: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING Attn: ROBIN NIMMER Address: 121 S. JACKSON MOSCOW, ID 83843 Analytical Results Report Batch 130618001 Project Name: DUMAS SEED Anatek Labs, Inc. 1282 Alturas Drive • Moscow, ID 83843 • (208) 883-2839 • Fax (208) 882-9246 • email [EMAIL REDACTED] 504 E Sprague Ste. D • Spokane WA 99202 • (509) 838-3999 • Fax (509) 838-4433 • email [EMAIL REDACTED] 130618001-006 Sample Number Matrix Soil Parameter Result Units Analysis Date Analyst Method Qualifier PQL Client Sample ID Sampling Date 6/5/2013 Sampling Time 3:03 PM Date/Time Received 6/18/2013 Sample Location Extraction Date ISM2-R 6/19/2013 8:10 AM Comments mg/Kg SAT 6/21/2013 Dieldrin EPA 8081A 0.0103 0.01 Percent SAT 6/19/2013 %moisture %moisture 15.7 Surrogate Data Surrogate Standard Percent Recovery Control Limits Sample Number 130618001-006 Method DCB 98.2 30-130 EPA 8081A Page 6 of 9 Tuesday, July 02, 2013 Certifications held by Anatek Labs ID: EPA:ID00013; AZ:0701; CO:ID00013; FL(NELAP):E87893; ID:ID00013; IN:C-ID-01; KY:90142; MT:CERT0028; NM: ID00013; OR:ID200001-002; WA:C595 Certifications held by Anatek Labs WA: EPA:WA00169; ID:WA00169; WA:C585; MT:Cert0095 ---PAGE BREAK--- Client: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING Attn: ROBIN NIMMER Address: 121 S. JACKSON MOSCOW, ID 83843 Analytical Results Report Batch 130618001 Project Name: DUMAS SEED Anatek Labs, Inc. 1282 Alturas Drive • Moscow, ID 83843 • (208) 883-2839 • Fax (208) 882-9246 • email [EMAIL REDACTED] 504 E Sprague Ste. D • Spokane WA 99202 • (509) 838-3999 • Fax (509) 838-4433 • email [EMAIL REDACTED] 130618001-007 Sample Number Matrix Soil Parameter Result Units Analysis Date Analyst Method Qualifier PQL Client Sample ID Sampling Date 6/10/2013 Sampling Time 3:24 PM Date/Time Received 6/18/2013 Sample Location Extraction Date ISM6-W 6/19/2013 8:10 AM Comments mg/Kg SAT 6/21/2013 Dieldrin EPA 8081A ND 0.01 Percent SAT 6/19/2013 %moisture %moisture 10.1 Surrogate Data Surrogate Standard Percent Recovery Control Limits Sample Number 130618001-007 Method DCB 76.4 30-130 EPA 8081A Page 7 of 9 Tuesday, July 02, 2013 Certifications held by Anatek Labs ID: EPA:ID00013; AZ:0701; CO:ID00013; FL(NELAP):E87893; ID:ID00013; IN:C-ID-01; KY:90142; MT:CERT0028; NM: ID00013; OR:ID200001-002; WA:C595 Certifications held by Anatek Labs WA: EPA:WA00169; ID:WA00169; WA:C585; MT:Cert0095 ---PAGE BREAK--- Client: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING Attn: ROBIN NIMMER Address: 121 S. JACKSON MOSCOW, ID 83843 Analytical Results Report Batch 130618001 Project Name: DUMAS SEED Anatek Labs, Inc. 1282 Alturas Drive • Moscow, ID 83843 • (208) 883-2839 • Fax (208) 882-9246 • email [EMAIL REDACTED] 504 E Sprague Ste. D • Spokane WA 99202 • (509) 838-3999 • Fax (509) 838-4433 • email [EMAIL REDACTED] 130618001-008 Sample Number Matrix Soil Parameter Result Units Analysis Date Analyst Method Qualifier PQL Client Sample ID Sampling Date 6/10/2013 Sampling Time 3:24 PM Date/Time Received 6/18/2013 Sample Location Extraction Date ISM6-P 6/19/2013 8:10 AM Comments mg/Kg SAT 6/21/2013 Dieldrin EPA 8081A ND 0.01 Percent SAT 6/19/2013 %moisture %moisture 10.4 Surrogate Data Surrogate Standard Percent Recovery Control Limits Sample Number 130618001-008 Method DCB 85.8 30-130 EPA 8081A Page 8 of 9 Tuesday, July 02, 2013 Certifications held by Anatek Labs ID: EPA:ID00013; AZ:0701; CO:ID00013; FL(NELAP):E87893; ID:ID00013; IN:C-ID-01; KY:90142; MT:CERT0028; NM: ID00013; OR:ID200001-002; WA:C595 Certifications held by Anatek Labs WA: EPA:WA00169; ID:WA00169; WA:C585; MT:Cert0095 ---PAGE BREAK--- Client: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING Attn: ROBIN NIMMER Address: 121 S. JACKSON MOSCOW, ID 83843 Analytical Results Report Batch 130618001 Project Name: DUMAS SEED Anatek Labs, Inc. 1282 Alturas Drive • Moscow, ID 83843 • (208) 883-2839 • Fax (208) 882-9246 • email [EMAIL REDACTED] 504 E Sprague Ste. D • Spokane WA 99202 • (509) 838-3999 • Fax (509) 838-4433 • email [EMAIL REDACTED] 130618001-009 Sample Number Matrix Soil Parameter Result Units Analysis Date Analyst Method Qualifier PQL Client Sample ID Sampling Date 6/10/2013 Sampling Time 3:24 PM Date/Time Received 6/18/2013 Sample Location Extraction Date ISM6-R 6/19/2013 8:10 AM Comments mg/Kg SAT 6/21/2013 Dieldrin EPA 8081A ND 0.01 Percent SAT 6/19/2013 %moisture %moisture 11.1 Surrogate Data Surrogate Standard Percent Recovery Control Limits Sample Number 130618001-009 Method DCB 92.0 30-130 EPA 8081A Authorized Signature John Coddington, Lab Manager MCL EPA's Maximum Contaminant Level ND Not Detected PQL Practical Quantitation Limit This report shall not be reproduced except in full, without the written approval of the laboratory. The results reported relate only to the samples indicated. Soil/solid results are reported on a dry-weight basis unless otherwise noted. Page 9 of 9 Tuesday, July 02, 2013 Certifications held by Anatek Labs ID: EPA:ID00013; AZ:0701; CO:ID00013; FL(NELAP):E87893; ID:ID00013; IN:C-ID-01; KY:90142; MT:CERT0028; NM: ID00013; OR:ID200001-002; WA:C595 Certifications held by Anatek Labs WA: EPA:WA00169; ID:WA00169; WA:C585; MT:Cert0095 ---PAGE BREAK--- Client: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING Attn: ROBIN NIMMER Address: 121 S. JACKSON MOSCOW, ID 83843 Analytical Results Report Batch 130618001 Project Name: DUMAS SEED Quality Control Data Anatek Labs, Inc. 1282 Alturas Drive • Moscow, ID 83843 • (208) 883-2839 • Fax (208) 882-9246 • email [EMAIL REDACTED] 504 E Sprague Ste. D • Spokane WA 99202 • (509) 838-3999 • Fax (509) 838-4433 • email [EMAIL REDACTED] Parameter %Rec Lab Control Sample LCS Result LCS Spike AR %Rec Analysis Date Units Prep Date 6/21/2013 Dieldrin 0.05 74.4 0.0372 20-150 mg/Kg 6/19/2013 Parameter %Rec Matrix Spike Duplicate MSD Result MSD Spike Analysis Date Units %RPD AR %RPD Prep Date 6/21/2013 Dieldrin 0.05 44.2 0.0338 mg/Kg 32.0 0-50 6/19/2013 Parameter %Rec Matrix Spike Sample Number MS Result MS Spike AR %Rec Analysis Date Units Sample Result Prep Date 130618001-001 6/21/2013 Dieldrin 0.05 70.0 0.0467 10-160 mg/Kg 0.0117 6/19/2013 Parameter Method Blank Result Analysis Date Units PQL Prep Date 6/21/2013 Dieldrin ND mg/Kg 0.01 6/19/2013 AR Acceptable Range ND Not Detected PQL Practical Quantitation Limit RPD Relative Percentage Difference Page 1 of 1 Tuesday, July 02, 2013 Comments: Certifications held by Anatek Labs ID: EPA:ID00013; AZ:0701; CO:ID00013; FL(NELAP):E87893; ID:ID00013; IN:C-ID-01; KY:90142; MT:CERT0028; NM: ID00013; OR:ID200001-002; WA:C595 Certifications held by Anatek Labs WA: EPA:WA00169; ID:WA00169; WA:C585; MT:Cert0095 ---PAGE BREAK--- Login Report Anatek Labs, Inc. 1282 Alturas Drive • Moscow, ID 83843 • (208) 883-2839 • Fax (208) 882-9246 • email [EMAIL REDACTED] 504 E Sprague Ste. D • Spokane WA 99202 • (509) 838-3999 • Fax (509) 838-4433 • email [EMAIL REDACTED] Order ID: 130618001 Customer Name: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING 121 S. JACKSON Contact Name: ROBIN NIMMER Comment: Order Date: 6/18/2013 Project Name: DUMAS SEED MOSCOW ID 83843 Sample 130618001-001 Date Collected: 6/5/2013 Date Received: 6/18/2013 8:10:00 AM Customer Sample ISM3-W Comment: Collector: SHAWN RINGO Matrix: Soil Quantity: 1 Recv'd: Test Method Due Date Priority Lab %Moisture 6/28/2013 %moisture Normal (6-10 Days) M OC PEST 8081A 6/28/2013 EPA 8081A Normal (6-10 Days) M Sample 130618001-002 Date Collected: 6/5/2013 Date Received: 6/18/2013 8:10:00 AM Customer Sample ISM3-P Comment: Collector: SHAWN RINGO Matrix: Soil Quantity: 1 Recv'd: Test Method Due Date Priority Lab %Moisture 6/28/2013 %moisture Normal (6-10 Days) M OC PEST 8081A 6/28/2013 EPA 8081A Normal (6-10 Days) M Sample 130618001-003 Date Collected: 6/5/2013 Date Received: 6/18/2013 8:10:00 AM Customer Sample ISM3-R Comment: Collector: SHAWN RINGO Matrix: Soil Quantity: 1 Recv'd: Test Method Due Date Priority Lab %Moisture 6/28/2013 %moisture Normal (6-10 Days) M OC PEST 8081A 6/28/2013 EPA 8081A Normal (6-10 Days) M ---PAGE BREAK--- Order ID: 130618001 Customer Name: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING 121 S. JACKSON Contact Name: ROBIN NIMMER Comment: Order Date: 6/18/2013 Project Name: DUMAS SEED MOSCOW ID 83843 Sample 130618001-004 Date Collected: 6/5/2013 Date Received: 6/18/2013 8:10:00 AM Customer Sample ISM2-W Comment: Collector: SHAWN RINGO Matrix: Soil Quantity: 1 Recv'd: Test Method Due Date Priority Lab %Moisture 6/28/2013 %moisture Normal (6-10 Days) M OC PEST 8081A 6/28/2013 EPA 8081A Normal (6-10 Days) M Sample 130618001-005 Date Collected: 6/5/2013 Date Received: 6/18/2013 8:10:00 AM Customer Sample ISM2-P Comment: Collector: SHAWN RINGO Matrix: Soil Quantity: 1 Recv'd: Test Method Due Date Priority Lab %Moisture 6/28/2013 %moisture Normal (6-10 Days) M OC PEST 8081A 6/28/2013 EPA 8081A Normal (6-10 Days) M Sample 130618001-006 Date Collected: 6/5/2013 Date Received: 6/18/2013 8:10:00 AM Customer Sample ISM2-R Comment: Collector: SHAWN RINGO Matrix: Soil Quantity: 1 Recv'd: Test Method Due Date Priority Lab %Moisture 6/28/2013 %moisture Normal (6-10 Days) M OC PEST 8081A 6/28/2013 EPA 8081A Normal (6-10 Days) M Sample 130618001-007 Date Collected: 6/10/2013 Date Received: 6/18/2013 8:10:00 AM Customer Sample ISM6-W Comment: Collector: SHAWN RINGO Matrix: Soil Quantity: 1 Recv'd: Test Method Due Date Priority Lab %Moisture 6/28/2013 %moisture Normal (6-10 Days) M OC PEST 8081A 6/28/2013 EPA 8081A Normal (6-10 Days) M ---PAGE BREAK--- Order ID: 130618001 Customer Name: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING 121 S. JACKSON Contact Name: ROBIN NIMMER Comment: Order Date: 6/18/2013 Project Name: DUMAS SEED MOSCOW ID 83843 Sample 130618001-008 Date Collected: 6/10/2013 Date Received: 6/18/2013 8:10:00 AM Customer Sample ISM6-P Comment: Collector: SHAWN RINGO Matrix: Soil Quantity: 1 Recv'd: Test Method Due Date Priority Lab %Moisture 6/28/2013 %moisture Normal (6-10 Days) M OC PEST 8081A 6/28/2013 EPA 8081A Normal (6-10 Days) M Sample 130618001-009 Date Collected: 6/10/2013 Date Received: 6/18/2013 8:10:00 AM Customer Sample ISM6-R Comment: Collector: SHAWN RINGO Matrix: Soil Quantity: 1 Recv'd: Test Method Due Date Priority Lab %Moisture 6/28/2013 %moisture Normal (6-10 Days) M OC PEST 8081A 6/28/2013 EPA 8081A Normal (6-10 Days) M SAMPLE CONDITION RECORD Samples received in a cooler? Yes Samples received intact? Yes What is the temperature inside the cooler? -0.7 Samples received with a COC? Yes Samples received within holding time? Yes Are all sample bottles properly preserved? Yes Are VOC samples free of headspace? N/A Is there a trip blank to accompany VOC samples? N/A Labels and chain agree? Yes ---PAGE BREAK--- ---PAGE BREAK--- Client: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING Attn: ROBIN NIMMER Address: 121 S. JACKSON MOSCOW, ID 83843 Analytical Results Report Batch 130610008 Project Name: DUMAS SEED Anatek Labs, Inc. 1282 Alturas Drive • Moscow, ID 83843 • (208) 883-2839 • Fax (208) 882-9246 • email [EMAIL REDACTED] 504 E Sprague Ste. D • Spokane WA 99202 • (509) 838-3999 • Fax (509) 838-4433 • email [EMAIL REDACTED] 130610008-001 Sample Number Matrix Soil Parameter Result Units Analysis Date Analyst Method Qualifier PQL Client Sample ID Sampling Date 6/7/2013 Sampling Time 8:40 AM Date/Time Received 6/7/2013 Sample Location Extraction Date (DS-U1-1)060713 6/12/2013 4:18 PM Comments mg/Kg SAT 6/13/2013 Dieldrin EPA 8081A ND 0.01 Percent SAT 6/12/2013 %moisture %moisture 8.7 Surrogate Data Surrogate Standard Percent Recovery Control Limits Sample Number 130610008-001 Method DCB 85.8 30-130 EPA 8081A Page 1 of 10 Thursday, June 27, 2013 Certifications held by Anatek Labs ID: EPA:ID00013; AZ:0701; CO:ID00013; FL(NELAP):E87893; ID:ID00013; IN:C-ID-01; KY:90142; MT:CERT0028; NM: ID00013; OR:ID200001-002; WA:C595 Certifications held by Anatek Labs WA: EPA:WA00169; ID:WA00169; WA:C585; MT:Cert0095 ---PAGE BREAK--- Client: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING Attn: ROBIN NIMMER Address: 121 S. JACKSON MOSCOW, ID 83843 Analytical Results Report Batch 130610008 Project Name: DUMAS SEED Anatek Labs, Inc. 1282 Alturas Drive • Moscow, ID 83843 • (208) 883-2839 • Fax (208) 882-9246 • email [EMAIL REDACTED] 504 E Sprague Ste. D • Spokane WA 99202 • (509) 838-3999 • Fax (509) 838-4433 • email [EMAIL REDACTED] 130610008-002 Sample Number Matrix Soil Parameter Result Units Analysis Date Analyst Method Qualifier PQL Client Sample ID Sampling Date 6/7/2013 Sampling Time 9:45 AM Date/Time Received 6/7/2013 Sample Location Extraction Date (DS-U1-3)060713 6/12/2013 4:18 PM Comments mg/Kg SAT 6/13/2013 Dieldrin EPA 8081A 0.0253 0.01 Percent SAT 6/12/2013 %moisture %moisture 9.3 Surrogate Data Surrogate Standard Percent Recovery Control Limits Sample Number 130610008-002 Method DCB 87.2 30-130 EPA 8081A Page 2 of 10 Thursday, June 27, 2013 Certifications held by Anatek Labs ID: EPA:ID00013; AZ:0701; CO:ID00013; FL(NELAP):E87893; ID:ID00013; IN:C-ID-01; KY:90142; MT:CERT0028; NM: ID00013; OR:ID200001-002; WA:C595 Certifications held by Anatek Labs WA: EPA:WA00169; ID:WA00169; WA:C585; MT:Cert0095 ---PAGE BREAK--- Client: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING Attn: ROBIN NIMMER Address: 121 S. JACKSON MOSCOW, ID 83843 Analytical Results Report Batch 130610008 Project Name: DUMAS SEED Anatek Labs, Inc. 1282 Alturas Drive • Moscow, ID 83843 • (208) 883-2839 • Fax (208) 882-9246 • email [EMAIL REDACTED] 504 E Sprague Ste. D • Spokane WA 99202 • (509) 838-3999 • Fax (509) 838-4433 • email [EMAIL REDACTED] 130610008-003 Sample Number Matrix Soil Parameter Result Units Analysis Date Analyst Method Qualifier PQL Client Sample ID Sampling Date 6/7/2013 Sampling Time 9:10 AM Date/Time Received 6/7/2013 Sample Location Extraction Date (DS-U1-2)060713 6/12/2013 4:18 PM Comments mg/Kg SAT 6/13/2013 Dieldrin EPA 8081A 0.0116 0.01 Percent SAT 6/12/2013 %moisture %moisture 8.1 Surrogate Data Surrogate Standard Percent Recovery Control Limits Sample Number 130610008-003 Method DCB 89.4 30-130 EPA 8081A Page 3 of 10 Thursday, June 27, 2013 Certifications held by Anatek Labs ID: EPA:ID00013; AZ:0701; CO:ID00013; FL(NELAP):E87893; ID:ID00013; IN:C-ID-01; KY:90142; MT:CERT0028; NM: ID00013; OR:ID200001-002; WA:C595 Certifications held by Anatek Labs WA: EPA:WA00169; ID:WA00169; WA:C585; MT:Cert0095 ---PAGE BREAK--- Client: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING Attn: ROBIN NIMMER Address: 121 S. JACKSON MOSCOW, ID 83843 Analytical Results Report Batch 130610008 Project Name: DUMAS SEED Anatek Labs, Inc. 1282 Alturas Drive • Moscow, ID 83843 • (208) 883-2839 • Fax (208) 882-9246 • email [EMAIL REDACTED] 504 E Sprague Ste. D • Spokane WA 99202 • (509) 838-3999 • Fax (509) 838-4433 • email [EMAIL REDACTED] 130610008-004 Sample Number Matrix Soil Parameter Result Units Analysis Date Analyst Method Qualifier PQL Client Sample ID Sampling Date 6/6/2013 Sampling Time 2:58 PM Date/Time Received 6/7/2013 Sample Location Extraction Date (DS-U5-1)060613 6/12/2013 4:18 PM Comments mg/Kg SAT 6/13/2013 Dieldrin EPA 8081A 0.0807 0.01 Percent SAT 6/12/2013 %moisture %moisture 6.3 Surrogate Data Surrogate Standard Percent Recovery Control Limits Sample Number 130610008-004 Method DCB 81.8 30-130 EPA 8081A Page 4 of 10 Thursday, June 27, 2013 Certifications held by Anatek Labs ID: EPA:ID00013; AZ:0701; CO:ID00013; FL(NELAP):E87893; ID:ID00013; IN:C-ID-01; KY:90142; MT:CERT0028; NM: ID00013; OR:ID200001-002; WA:C595 Certifications held by Anatek Labs WA: EPA:WA00169; ID:WA00169; WA:C585; MT:Cert0095 ---PAGE BREAK--- Client: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING Attn: ROBIN NIMMER Address: 121 S. JACKSON MOSCOW, ID 83843 Analytical Results Report Batch 130610008 Project Name: DUMAS SEED Anatek Labs, Inc. 1282 Alturas Drive • Moscow, ID 83843 • (208) 883-2839 • Fax (208) 882-9246 • email [EMAIL REDACTED] 504 E Sprague Ste. D • Spokane WA 99202 • (509) 838-3999 • Fax (509) 838-4433 • email [EMAIL REDACTED] 130610008-005 Sample Number Matrix Soil Parameter Result Units Analysis Date Analyst Method Qualifier PQL Client Sample ID Sampling Date 6/6/2013 Sampling Time 3:39 PM Date/Time Received 6/7/2013 Sample Location Extraction Date (DS-U5-2)060613 6/12/2013 4:18 PM Comments mg/Kg SAT 6/21/2013 Dieldrin EPA 8081A 0.0937 0.01 Percent SAT 6/12/2013 %moisture %moisture 6.1 Surrogate Data Surrogate Standard Percent Recovery Control Limits Sample Number 130610008-005 Method DCB 85.0 30-130 EPA 8081A Page 5 of 10 Thursday, June 27, 2013 Certifications held by Anatek Labs ID: EPA:ID00013; AZ:0701; CO:ID00013; FL(NELAP):E87893; ID:ID00013; IN:C-ID-01; KY:90142; MT:CERT0028; NM: ID00013; OR:ID200001-002; WA:C595 Certifications held by Anatek Labs WA: EPA:WA00169; ID:WA00169; WA:C585; MT:Cert0095 ---PAGE BREAK--- Client: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING Attn: ROBIN NIMMER Address: 121 S. JACKSON MOSCOW, ID 83843 Analytical Results Report Batch 130610008 Project Name: DUMAS SEED Anatek Labs, Inc. 1282 Alturas Drive • Moscow, ID 83843 • (208) 883-2839 • Fax (208) 882-9246 • email [EMAIL REDACTED] 504 E Sprague Ste. D • Spokane WA 99202 • (509) 838-3999 • Fax (509) 838-4433 • email [EMAIL REDACTED] 130610008-006 Sample Number Matrix Soil Parameter Result Units Analysis Date Analyst Method Qualifier PQL Client Sample ID Sampling Date 6/6/2013 Sampling Time 3:39 PM Date/Time Received 6/7/2013 Sample Location Extraction Date (DS-U5-2)060613-DUP 6/12/2013 4:18 PM Comments mg/Kg SAT 6/21/2013 Dieldrin EPA 8081A 0.108 0.01 Percent SAT 6/12/2013 %moisture %moisture 7.2 Surrogate Data Surrogate Standard Percent Recovery Control Limits Sample Number 130610008-006 Method DCB 91.6 30-130 EPA 8081A Page 6 of 10 Thursday, June 27, 2013 Certifications held by Anatek Labs ID: EPA:ID00013; AZ:0701; CO:ID00013; FL(NELAP):E87893; ID:ID00013; IN:C-ID-01; KY:90142; MT:CERT0028; NM: ID00013; OR:ID200001-002; WA:C595 Certifications held by Anatek Labs WA: EPA:WA00169; ID:WA00169; WA:C585; MT:Cert0095 ---PAGE BREAK--- Client: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING Attn: ROBIN NIMMER Address: 121 S. JACKSON MOSCOW, ID 83843 Analytical Results Report Batch 130610008 Project Name: DUMAS SEED Anatek Labs, Inc. 1282 Alturas Drive • Moscow, ID 83843 • (208) 883-2839 • Fax (208) 882-9246 • email [EMAIL REDACTED] 504 E Sprague Ste. D • Spokane WA 99202 • (509) 838-3999 • Fax (509) 838-4433 • email [EMAIL REDACTED] 130610008-007 Sample Number Matrix Soil Parameter Result Units Analysis Date Analyst Method Qualifier PQL Client Sample ID Sampling Date 6/6/2013 Sampling Time 4:14 PM Date/Time Received 6/7/2013 Sample Location Extraction Date (DS-U5-3)060613 6/12/2013 4:18 PM Comments mg/Kg SAT 6/21/2013 Dieldrin EPA 8081A 0.154 0.01 Percent SAT 6/12/2013 %moisture %moisture 7.2 Surrogate Data Surrogate Standard Percent Recovery Control Limits Sample Number 130610008-007 Method DCB 93.2 30-130 EPA 8081A Page 7 of 10 Thursday, June 27, 2013 Certifications held by Anatek Labs ID: EPA:ID00013; AZ:0701; CO:ID00013; FL(NELAP):E87893; ID:ID00013; IN:C-ID-01; KY:90142; MT:CERT0028; NM: ID00013; OR:ID200001-002; WA:C595 Certifications held by Anatek Labs WA: EPA:WA00169; ID:WA00169; WA:C585; MT:Cert0095 ---PAGE BREAK--- Client: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING Attn: ROBIN NIMMER Address: 121 S. JACKSON MOSCOW, ID 83843 Analytical Results Report Batch 130610008 Project Name: DUMAS SEED Anatek Labs, Inc. 1282 Alturas Drive • Moscow, ID 83843 • (208) 883-2839 • Fax (208) 882-9246 • email [EMAIL REDACTED] 504 E Sprague Ste. D • Spokane WA 99202 • (509) 838-3999 • Fax (509) 838-4433 • email [EMAIL REDACTED] 130610008-008 Sample Number Matrix Soil Parameter Result Units Analysis Date Analyst Method Qualifier PQL Client Sample ID Sampling Date 6/7/2013 Sampling Time 3:05 PM Date/Time Received 6/7/2013 Sample Location Extraction Date (DS-U4-1)060713 6/12/2013 4:18 PM Comments mg/Kg SAT 6/16/2013 Dieldrin EPA 8081A 0.253 0.01 Percent SAT 6/12/2013 %moisture %moisture 1.9 Surrogate Data Surrogate Standard Percent Recovery Control Limits Sample Number 130610008-008 Method DCB 89.4 30-130 EPA 8081A Page 8 of 10 Thursday, June 27, 2013 Certifications held by Anatek Labs ID: EPA:ID00013; AZ:0701; CO:ID00013; FL(NELAP):E87893; ID:ID00013; IN:C-ID-01; KY:90142; MT:CERT0028; NM: ID00013; OR:ID200001-002; WA:C595 Certifications held by Anatek Labs WA: EPA:WA00169; ID:WA00169; WA:C585; MT:Cert0095 ---PAGE BREAK--- Client: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING Attn: ROBIN NIMMER Address: 121 S. JACKSON MOSCOW, ID 83843 Analytical Results Report Batch 130610008 Project Name: DUMAS SEED Anatek Labs, Inc. 1282 Alturas Drive • Moscow, ID 83843 • (208) 883-2839 • Fax (208) 882-9246 • email [EMAIL REDACTED] 504 E Sprague Ste. D • Spokane WA 99202 • (509) 838-3999 • Fax (509) 838-4433 • email [EMAIL REDACTED] 130610008-009 Sample Number Matrix Soil Parameter Result Units Analysis Date Analyst Method Qualifier PQL Client Sample ID Sampling Date 6/7/2013 Sampling Time 3:40 PM Date/Time Received 6/7/2013 Sample Location Extraction Date (DS-U4-2)060713 6/12/2013 4:18 PM Comments mg/Kg SAT 6/16/2013 Dieldrin EPA 8081A 0.687 0.01 Percent SAT 6/12/2013 %moisture %moisture 2.6 Surrogate Data Surrogate Standard Percent Recovery Control Limits Sample Number 130610008-009 Method DCB 95.2 30-130 EPA 8081A Page 9 of 10 Thursday, June 27, 2013 Certifications held by Anatek Labs ID: EPA:ID00013; AZ:0701; CO:ID00013; FL(NELAP):E87893; ID:ID00013; IN:C-ID-01; KY:90142; MT:CERT0028; NM: ID00013; OR:ID200001-002; WA:C595 Certifications held by Anatek Labs WA: EPA:WA00169; ID:WA00169; WA:C585; MT:Cert0095 ---PAGE BREAK--- Client: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING Attn: ROBIN NIMMER Address: 121 S. JACKSON MOSCOW, ID 83843 Analytical Results Report Batch 130610008 Project Name: DUMAS SEED Anatek Labs, Inc. 1282 Alturas Drive • Moscow, ID 83843 • (208) 883-2839 • Fax (208) 882-9246 • email [EMAIL REDACTED] 504 E Sprague Ste. D • Spokane WA 99202 • (509) 838-3999 • Fax (509) 838-4433 • email [EMAIL REDACTED] 130610008-010 Sample Number Matrix Soil Parameter Result Units Analysis Date Analyst Method Qualifier PQL Client Sample ID Sampling Date 6/7/2013 Sampling Time 2:25 PM Date/Time Received 6/7/2013 Sample Location Extraction Date (DS-U4-3)060713 6/12/2013 4:18 PM Comments mg/Kg SAT 6/16/2013 Dieldrin EPA 8081A 0.563 0.01 Percent SAT 6/12/2013 %moisture %moisture 2.4 Surrogate Data Surrogate Standard Percent Recovery Control Limits Sample Number 130610008-010 Method DCB 81.0 30-130 EPA 8081A Authorized Signature John Coddington, Lab Manager MCL EPA's Maximum Contaminant Level ND Not Detected PQL Practical Quantitation Limit This report shall not be reproduced except in full, without the written approval of the laboratory. The results reported relate only to the samples indicated. Soil/solid results are reported on a dry-weight basis unless otherwise noted. Page 10 of 10 Thursday, June 27, 2013 Certifications held by Anatek Labs ID: EPA:ID00013; AZ:0701; CO:ID00013; FL(NELAP):E87893; ID:ID00013; IN:C-ID-01; KY:90142; MT:CERT0028; NM: ID00013; OR:ID200001-002; WA:C595 Certifications held by Anatek Labs WA: EPA:WA00169; ID:WA00169; WA:C585; MT:Cert0095 ---PAGE BREAK--- Client: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING Attn: ROBIN NIMMER Address: 121 S. JACKSON MOSCOW, ID 83843 Analytical Results Report Batch 130610008 Project Name: DUMAS SEED Quality Control Data Anatek Labs, Inc. 1282 Alturas Drive • Moscow, ID 83843 • (208) 883-2839 • Fax (208) 882-9246 • email [EMAIL REDACTED] 504 E Sprague Ste. D • Spokane WA 99202 • (509) 838-3999 • Fax (509) 838-4433 • email [EMAIL REDACTED] Parameter %Rec Lab Control Sample LCS Result LCS Spike AR %Rec Analysis Date Units Prep Date 6/13/2013 Dieldrin 0.05 78.4 0.0392 20-150 mg/Kg 6/13/2013 Parameter %Rec Matrix Spike Duplicate MSD Result MSD Spike Analysis Date Units %RPD AR %RPD Prep Date 6/13/2013 Dieldrin 0.0455 99.6 0.0453 mg/Kg 6.1 0-50 6/13/2013 Parameter %Rec Matrix Spike Sample Number MS Result MS Spike AR %Rec Analysis Date Units Sample Result Prep Date 130610008-001A 6/13/2013 Dieldrin 0.046 93.6 0.0426 10-160 mg/Kg ND 6/13/2013 Parameter Method Blank Result Analysis Date Units PQL Prep Date 6/13/2013 Dieldrin ND mg/Kg 0.01 6/13/2013 AR Acceptable Range ND Not Detected PQL Practical Quantitation Limit RPD Relative Percentage Difference Page 1 of 1 Thursday, June 27, 2013 Comments: Certifications held by Anatek Labs ID: EPA:ID00013; AZ:0701; CO:ID00013; FL(NELAP):E87893; ID:ID00013; IN:C-ID-01; KY:90142; MT:CERT0028; NM: ID00013; OR:ID200001-002; WA:C595 Certifications held by Anatek Labs WA: EPA:WA00169; ID:WA00169; WA:C585; MT:Cert0095 ---PAGE BREAK--- Login Report Anatek Labs, Inc. 1282 Alturas Drive • Moscow, ID 83843 • (208) 883-2839 • Fax (208) 882-9246 • email [EMAIL REDACTED] 504 E Sprague Ste. D • Spokane WA 99202 • (509) 838-3999 • Fax (509) 838-4433 • email [EMAIL REDACTED] Order ID: 130610008 Customer Name: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING 121 S. JACKSON Contact Name: ROBIN NIMMER Comment: Order Date: 6/10/2013 Project Name: DUMAS SEED MOSCOW ID 83843 Sample 130610008-001 Date Collected: 6/7/2013 Date Received: 6/7/2013 4:18:00 PM Customer Sample (DS-U1-1)060713 Comment: Collector: Matrix: Soil Quantity: 1 Recv'd: Test Method Due Date Priority Lab %Moisture 6/20/2013 %moisture Normal (6-10 Days) M OC PEST 8081A 6/20/2013 EPA 8081A Normal (6-10 Days) M Sample 130610008-002 Date Collected: 6/7/2013 Date Received: 6/7/2013 4:18:00 PM Customer Sample (DS-U1-3)060713 Comment: Collector: Matrix: Soil Quantity: 1 Recv'd: Test Method Due Date Priority Lab %Moisture 6/20/2013 %moisture Normal (6-10 Days) M OC PEST 8081A 6/20/2013 EPA 8081A Normal (6-10 Days) M Sample 130610008-003 Date Collected: 6/7/2013 Date Received: 6/7/2013 4:18:00 PM Customer Sample (DS-U1-2)060713 Comment: Collector: Matrix: Soil Quantity: 1 Recv'd: Test Method Due Date Priority Lab %Moisture 6/20/2013 %moisture Normal (6-10 Days) M OC PEST 8081A 6/20/2013 EPA 8081A Normal (6-10 Days) M ---PAGE BREAK--- Order ID: 130610008 Customer Name: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING 121 S. JACKSON Contact Name: ROBIN NIMMER Comment: Order Date: 6/10/2013 Project Name: DUMAS SEED MOSCOW ID 83843 Sample 130610008-004 Date Collected: 6/6/2013 Date Received: 6/7/2013 4:18:00 PM Customer Sample (DS-U5-1)060613 Comment: Collector: Matrix: Soil Quantity: 1 Recv'd: Test Method Due Date Priority Lab %Moisture 6/20/2013 %moisture Normal (6-10 Days) M OC PEST 8081A 6/20/2013 EPA 8081A Normal (6-10 Days) M Sample 130610008-005 Date Collected: 6/6/2013 Date Received: 6/7/2013 4:18:00 PM Customer Sample (DS-U5-2)060613 Comment: Collector: Matrix: Soil Quantity: 1 Recv'd: Test Method Due Date Priority Lab %Moisture 6/20/2013 %moisture Normal (6-10 Days) M OC PEST 8081A 6/20/2013 EPA 8081A Normal (6-10 Days) M Sample 130610008-006 Date Collected: 6/6/2013 Date Received: 6/7/2013 4:18:00 PM Customer Sample (DS-U5-2)060613-DUP Comment: Collector: Matrix: Soil Quantity: 1 Recv'd: Test Method Due Date Priority Lab %Moisture 6/20/2013 %moisture Normal (6-10 Days) M OC PEST 8081A 6/20/2013 EPA 8081A Normal (6-10 Days) M Sample 130610008-007 Date Collected: 6/6/2013 Date Received: 6/7/2013 4:18:00 PM Customer Sample (DS-U5-3)060613 Comment: Collector: Matrix: Soil Quantity: 1 Recv'd: Test Method Due Date Priority Lab %Moisture 6/20/2013 %moisture Normal (6-10 Days) M OC PEST 8081A 6/20/2013 EPA 8081A Normal (6-10 Days) M ---PAGE BREAK--- Order ID: 130610008 Customer Name: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING 121 S. JACKSON Contact Name: ROBIN NIMMER Comment: Order Date: 6/10/2013 Project Name: DUMAS SEED MOSCOW ID 83843 Sample 130610008-008 Date Collected: 6/7/2013 Date Received: 6/7/2013 4:18:00 PM Customer Sample (DS-U4-1)060713 Comment: Collector: Matrix: Soil Quantity: 1 Recv'd: Test Method Due Date Priority Lab %Moisture 6/20/2013 %moisture Normal (6-10 Days) M OC PEST 8081A 6/20/2013 EPA 8081A Normal (6-10 Days) M Sample 130610008-009 Date Collected: 6/7/2013 Date Received: 6/7/2013 4:18:00 PM Customer Sample (DS-U4-2)060713 Comment: Collector: Matrix: Soil Quantity: 1 Recv'd: Test Method Due Date Priority Lab %Moisture 6/20/2013 %moisture Normal (6-10 Days) M OC PEST 8081A 6/20/2013 EPA 8081A Normal (6-10 Days) M Sample 130610008-010 Date Collected: 6/7/2013 Date Received: 6/7/2013 4:18:00 PM Customer Sample (DS-U4-3)060713 Comment: Collector: Matrix: Soil Quantity: 1 Recv'd: Test Method Due Date Priority Lab %Moisture 6/20/2013 %moisture Normal (6-10 Days) M OC PEST 8081A 6/20/2013 EPA 8081A Normal (6-10 Days) M ---PAGE BREAK--- Order ID: 130610008 Customer Name: TERRAGRAPHICS ENVIRONMENTAL ENGINEERING 121 S. JACKSON Contact Name: ROBIN NIMMER Comment: Order Date: 6/10/2013 Project Name: DUMAS SEED MOSCOW ID 83843 SAMPLE CONDITION RECORD Samples received in a cooler? Yes Samples received intact? Yes What is the temperature inside the cooler? 8.8 Samples received with a COC? Yes Samples received within holding time? Yes Are all sample bottles properly preserved? Yes Are VOC samples free of headspace? N/A Is there a trip blank to accompany VOC samples? N/A Labels and chain agree? Yes ---PAGE BREAK--- ---PAGE BREAK--- FINAL – Dumas Seed Facility Extended Phase II ESA Report B Appendix B RE-1 Risk Information ---PAGE BREAK--- LIST OF SELECTED CHEMICALS LIST OF SELECTED CHEMICALS Chemicals of Concern Chemicals of Concern CAS Number CAS Number Di ld i 60 57 1 Dieldrin 60-57-1 Dieldrin 60 57 1 Notes: Notes: Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name COC ---PAGE BREAK--- TOXICOLOGICAL PROPERTIES OF SELECTED CHEMICALS TOXICOLOGICAL PROPERTIES OF SELECTED CHEMICALS Aquatic Life Criterion Human Health Risk from Consumption C i i Eff t N C i i Eff t of: Carcinogenic Effects Non-Carcinogenic Effects of: Oral Relative Dermal Relative Maximum Oral Relative Absorption Factor Dermal Relative Absorption Factor Maximum Contaminant Level Oral Slope Factor Inhalation Slope Oral Reference Inhalation Absorption Factor (RAF ) Absorption Factor (RAFd) Contaminant Level (MCL) CHEMICALS OF CONCERN Oral Slope Factor (S ) Inhalation Slope (S i) Oral Reference ( f ) Reference Dose (RAFo) (RAFd) (MCL) CHEMICALS OF CONCERN (SFo) Factor (SFi) Dose (RfDo) Reference Dose (RfDi) (RfDi) [ /k d [ /k d (mg/kg da ) (mg/kg da ) [ ] [ ] [mg/L] [ [ [ [ [mg/kg-day] 1 [mg/kg-day] 1 (mg/kg-day) (mg/kg-day) [mg/L] Dieldrin 16 16 0 00005 0 00005 1 0 1 NA 2 5 0 0019 0 00014 0 00014 Dieldrin 16 16 0.00005 0.00005 1 0.1 NA 2.5 0.0019 0.00014 0.00014 Notes: Notes: NA: Not applicable or available NA: Not applicable or available Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name TOX ---PAGE BREAK--- PHYSICAL AND CHEMICAL PROPERTIES OF SELECTED CHEMICALS PHYSICAL AND CHEMICAL PROPERTIES OF SELECTED CHEMICALS M l l W t H ' L O C b S il W t S il W t Sit S if Diff i C ffi i t Molecular Water Henry's Law Org. Carbon Soil-Water Soil-Water Site-Specifc Diffusion Coefficient: CHEMICALS OF CONCERN Weight Solubility Constant Ads Coef Sorp Coeff Sorp Coeff in air in water CHEMICALS OF CONCERN Weight Solubility Constant Ads. Coef. Sorp. Coeff. Sorp. Coeff. in air in water (g/g-mol) (mg/L) (L-water/L-air) Koc (mL/g) Kd (mL-water /g-soil) Kd for Metals (mL/g) Kd for Metals (mL/g) (cm2/s) (cm2/s) (g/g mol) (mg/L) (L water/L air) Koc (mL/g) Kd (mL water /g soil) Kd for Metals (mL/g) Kd for Metals (mL/g) (cm (cm Dieldrin 3 81E+02 1 95E 01 6 19E 04 2 14E+04 2 14E+01 NA 1 25E 02 4 74E 06 Dieldrin 3.81E+02 1.95E-01 6.19E-04 2.14E+04 2.14E+01 NA 1.25E-02 4.74E-06 Notes: Notes: NA: Not applicable or available pp Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name PCP ---PAGE BREAK--- RECEPTOR(S) AND ROUTE(S) OF EXPOSURE (Select by clicking the checkboxes) CHILD AGE-ADJUSTED Surficial Soil Ingestion of Soil, Outdoor Inhalation of Vapor Emissions and Particulates, and Dermal Contact with Soil Subsurface Soil Indoor Inhalation of Vapor Emissions Groundwater Indoor Inhalation of Vapor Emissions Soil-Vapor ( RE-2 only) Indoor Inhalation of Vapor Emissions Groundwater Protection Option 1. SOURCE AND ROUTES OF EXPOSURES RECEPTOR Groundwater with Current Use or High Probability of Future Use as Drinking Water: The Maximum Contaminant Levels (MCLs) are used as the target concentrations at the POE. For chemicals without MCLs, risk-based ingestion standard for an age-adjusted adult is used. RESIDENT NON-RESIDENTIAL CONSTRUCTION WORKER Option 2. Surface Water Protection If a surface water body is impacted or threatened, complete the following: If Ammonia is a potential COC for surface water, complete the following: Surface water supports warm water aquatic species? Surface water is used for drinking/water quality is appropriate for drinking water supplies? Surface water supports aquatic life? Surface water is used for recreational activities? Surface water supports cold water aquatic species? Groundwater with Low Probability of Future Use as Drinking Water: Groundwater concentrations protective of off-site receptors resulting from exposure via pathways other than direct ingestion. These pathways include but are not limited to volatilization to indoor air, irrigation water use with crop uptake and ingestion, and irrigation water use without crop uptake. Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name ROE ---PAGE BREAK--- RE-1 EXPOSURE FACTORS (Page 1 of 2) Parameter Symbol Unit Default Value Value Used Comment ATc year 70 70 Default ATnc year =ED =ED Default Body Weight: Resident Child BWc kg 15 15 Default Resident Adolescent BWas kg 55 55 Default Resident Adult BWa kg 70 70 Default Non-residential BWcom kg 70 70 Default Construction Worker BWcon kg 70 70 Default Exposure Duration: Resident Child EDc year 6 6 Default Resident Adolescent EDas year 9 9 Default Resident Adult EDa year 15 15 Default Age-adjusted Resident EDaa year 30 30 Default Non-residential EDcom year 6.6 6.6 Default Construction Worker EDcon year 1 1 Default Exposure Frequency for Indirect Pathways: Resident Child EFc day/year 350 350 Default Resident Adolescent EFas day/year 350 350 Default Resident Adult EFa day/year 350 350 Default Non-residential EFcom day/year 250 250 Default Construction Worker EFcon day/year 30 30 Default Exposure Frequency for Direct Contact Pathways Resident Child EFdc day/year 270 270 Default Resident Adolescent EFdas day/year 270 270 Default Resident Adult EFda day/year 270 270 Default Non-residential EFdcom day/year 180 180 Default Construction Worker EFdcon day/year 30 30 Default Indoor Exposure Time: Resident Child ETi-c hrs/day 21 21 Default Resident Adolescent ETi-as hrs/day 15.8 15.8 Default Resident Adult ETi-a hrs/day 15 15 Default Non-residential ETi-com hrs/day 7.5 7.5 Default Outdoor Exposure Time: Resident Child ETo-c hrs/day 2 2 Default Resident Adolescent ETo-as hrs/day 2 2 Default R id Ad l ET h /d 2 2 D f l Resident Adult ETo-a hrs/day 2 2 Default Non-residential ETo-com hrs/day 6 6 Default Construction Worker ETo-con hrs/day 10 10 Default Soil Ingestion Rate: Resident Child IRs-c mg/day 200 200 Default Resident Adolescent IRs-as mg/day 100 100 Default Resident Adult IRs-a mg/day 100 100 Default Age-adjusted IRs-aa mg/kg 31804 31804 Default Non-residential IRs-com mg/day 100 100 Default Construction Worker IRs-con mg/day 480 480 Default Groundwater Ingestion Rate: Resident Child IRw-c L/day 1.5 1.5 Default Resident Adolescent IRw-as L/day 1.7 1.7 Default Resident Adult IRw-a L/day 2 2 Default Age-adjusted IRw-aa L/kg 457.36 457.36 Default Non-residential IRw-com L/day 1 1 Default Hourly Indoor Inhalation Rate: Resident Child IRai-c m3/hr 0.7 0.7 Default Resident Adolescent IRai-as m3/hr 0.7 0.7 Default Resident Adult IRai-a m3/hr 0.7 0.7 Default Non-residential IRai-com m3/hr 1 1 Default Hourly Outdoor Inhalation Rate: Resident Child IRao-c m3/hr 1.1 1.1 Default Resident Adolescent IRao-as m3/hr 1.3 1.3 Default Resident Adult IRao-a m3/hr 1.3 1.3 Default Non-residential IRao-com m3/hr 1.6 1.6 Default Construction Worker IRao-con m3/hr 2.4 2.4 Default Indoor Inhalation Rate: Resident Child IRai-c m3/day 14.7 14.7 Default Resident Adolescent IRai-as m3/day 11.1 11.1 Default Resident Adult IRai-a m3/day 10.5 10.5 Default Age-adjusted (calculated) IRai-aa m3/kg 3478.9 3478.9 Default Commercial Worker IRai-com m3/day 7.5 7.5 Default Path : C:\Users\rachel.gibeault\Downloads Page 1 of 2 Sheet name EXP ---PAGE BREAK--- EXPOSURE FACTORS (Page 2 of 2) Parameter Symbol Unit Default Value Value Used Comment Outdoor Inhalation Rate: Resident Child IRao-c m3/day 2.2 2.2 Default Resident Adolescent IRao-as m3/day 2.6 2.6 Default Resident Adult IRao-a m3/day 2.6 2.6 Default Age-adjusted IRao-aa m3/kg 502.9 502.9 Default Non-residential IRao-com m3/day 9.6 9.6 Default Construction Worker IRao-con m3/day 24 24 Default Skin Surface Area: Resident Child SAc cm2/day 2434 2434 Default Resident Adolescent SAas cm2/day 2434 2434 Default Resident Adult SAa cm2/day 5657 5657 Default Age-adjusted SAaa mg/kg 393322.9 393322.9 Default Non-residential SAcom cm2/day 3477 3477 Default Construction Worker SAcon cm2/day 3477 3477 Default Soil to Skin Adherence Factor: Resident Child Mc mg/cm2 1 1 Default Resident Adolescent Mas mg/cm1 0.3 0.3 Default Resident Adult Ma mg/cm2 0.3 0.3 Default Non-residential Mcom mg/cm2 0.1 0.1 Default Construction Worker Mcon mg/cm2 0.5 0.5 Default Averaging Time for Vapor Flux: Resident Child s 1.89E+08 1.89E+08 Calculated Resident Adolescent s 2.84E+08 2.84E+08 Calculated Resident Adult s 4.73E+08 4.73E+08 Calculated Age-adjusted Resident s 9.46E+08 9.46E+08 Calculated Commercial Worker s 2.08E+08 2.08E+08 Calculated Construction Worker s 3.15E+07 3.15E+07 Calculated Target Site Risk TR 1.00E-05 1.00E-05 Default Target Site Hazard Quotient THI 1 1 Default Path : C:\Users\rachel.gibeault\Downloads Page 2 of 2 Sheet name EXP ---PAGE BREAK--- RE-1 FATE AND TRANSPORT PARAMETERS (Page 1 of 3) Parameter Symbol Unit Default Value Value Used Comment SOIL PARAMETERS: Source-building separation LTS cm 30 30 Default Source-bottom-building separation LTS-B cm 183 183 Default Number of distinct soil strata between the top of the source zone and the building foundation nS - 1 1 Default SOIL-VAPOR PARAMETERS: Depth to sample from the bottom of the building LTSV cm 91 91 Default GROUNDWATER PARAMETERS: Groundwater-building separation LTGW cm 30 30 Default Number of distinct soil strata between the capillary fringe and the building foundation nGW - 1 1 Default AIR PARAMETERS: Viscosity of air g/cm-s 1.80E-04 1.80E-04 Default ENCLOSED SPACE PARAMETERS: Area of the enclosed space below grade: Residential AB cm2 1561600 1561600 Default Non-residential AB cm2 4782069 4782069 Default Enclosed Space Foundation/Wall Thickness: Residential Lcrack cm 15 15 Default Non-residential Lcrack cm 15 15 Default Total area of cracks: Residential Acrack cm2 484 484 Default Non-residential Acrack cm2 861 861 Default Number of air exchanges per second: Residential ER 1/sec 2.78E-04 2.78E-04 Default Non-residential ER 1/sec 5.56E-04 5.56E-04 Default Length of enclosed space: Residential LB cm 1220 1220 Default Non-residential LB cm 2157 2157 Default Width of enclosed space: Residential WB cm 1220 1220 Default Non-residential WB cm 2157 2157 Default Height of enclosed space: Residential HB cm 244 244 Default Non-residential HB cm 244 244 Default Floor-wall seam perimeter: Residential Xcrack cm2/cm2 4880 4880 Default Non-residential Xcrack cm2/cm2 8628 8628 Default Crack depth below grade Zcrack cm 15 15 Default Equivalent crack radius rcrack cm 0.1 0.1 Default Pressure differential between enclosed space and soil surface beneath P g/cm-s2 40 40 Default Building ventilation rate: Residential Qbuilding cm3/s 1.01E+05 1.01E+05 Calculated Non-residential Qbuilding cm3/s 6.31E+05 6.31E+05 Calculated Volumetric flow rate of soil gas into the enclosed space: Residential Qsoil cm3/s 6.0E+00 6.0E+00 Calculated Non-residential Qsoil cm3/s 1.1E+01 1.1E+01 Calculated COWHERD PARTICULATE EMISSION MODEL: Inverse of mean concentration in the middle of a sqaure source Q/C [g/m2-s]/[kg/m3] 69.41 69.41 Calculated Fraction of Vegetative Cover V m2/m2 0.5 0.5 Default Mean Annual Wind Speed Um m/s 3.98 3.98 Default Equivalent Threshold Value of Windspeed at 7m Ut m/s 11.32 11.32 Default Windspeed Distribution Function from Cowherd et. al, 1985 F(x) 0.0495 0.0495 Default Inverse of mean concentration in the middle of a sqaure source Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name F&T ---PAGE BREAK--- FATE AND TRANSPORT PARAMETERS (Page 2 of 3) Parameter Symbol Unit Default Value Value Used Comment GROUNDWATER PROTECTION PARAMETERS: Groundwater Darcy Velocity Ugw cm/year 3340 3340 Default Groundwater Mixing Zone Length Lmz cm 1220 1220 Default Groundwater Mixing Zone Thickness gw cm 153 153 Default Groundwater Mixing Zone Width Wgw cm 1220 1220 Default Infiltration Rate cm/year 25 25 Default Source Zone Soil Properties: Dry Soil Bulk Density of the source zone soil s g/cm3 1.64 1.64 Default Fractional Organic Carbon Content in the source zone soil foc g-C/g-soil 0.001 0.001 Default Total Soil Porosity of the source zone soil T cm3/cm3-soil 0.39 0.39 Default Volumetric Water Content in the source zone soil ws cm3/cm3 0.17 0.17 Default Volumetric Air Content in the source zone soil as cm3/cm3 0.22 0.22 Calculated Saturated Zone Soil Properties: Dry Soil Bulk Density of the saturated zone soil ss g/cm3 1.64 1.64 Default Fractional Organic Carbon Content in the saturated zone soil focs g-C/g-soil 0.001 0.001 Default Total Soil Porosity in the saturated zone soil Ts cm3/cm3-soil 0.39 0.39 Default Distance to the Point of Exposure (Xpoe) Xpoe,gw ft variable 0 User-Defined Longitudinal dispersivity x ft variable 0.000 Calculated Transverse dispersivity y ft variable 0.000 Calculated Vertical dispersivity z ft variable 0.000 Calculated Distance to the Point of Compliance (Xpoc) Xpoc,gw ft variable 0 User-Defined Longitudinal dispersivity x ft variable 0.000 Calculated Transverse dispersivity y ft variable 0.000 Calculated Vertical dispersivity z ft variable 0.000 Calculated SURFACE WATER PROTECTION PARAMETERS: SURFACE WATER PROTECTION PARAMETERS: pH of the receiving surface water pH 7 7 Default Temperature of the receiving surface water T 0C 15 15 Default Hardness of the receiving surface water H mg/L (as CaCO3) 25 25 Default Distance to the Point of Exposure (Xpoe) Xpoe,sw ft variable 0 User-Defined Longitudinal dispersivity x ft variable 0.000 Calculated Transverse dispersivity y ft variable 0.000 Calculated Vertical dispersivity z ft variable 0.000 Calculated Distance to the Point of Compliance (Xpoc) Xpoc,sw ft variable 0 User-Defined Longitudinal dispersivity x ft variable 0.000 Calculated Transverse dispersivity y ft variable 0.000 Calculated Vertical dispersivity z ft variable 0.000 Calculated Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name F&T ---PAGE BREAK--- RE-1 FATE AND TRANSPORT PARAMETERS Parameter Symbol Unit Default Value Value Used Comment Thickness of Soil Strata Between the Source and the Bottom of the Building: Stratum A (Immediately below the building) hA cm 30 30 Default Stratum B hB cm 0 0 Default Stratum C hC cm 0 0 Default Total thickness (should equal the source-building separation) LTS cm 30 30 Thickness of Soil Strata Between Groundwater and the Bottom of the Building: Stratum A (Immediately below the building) hA cm 5 5 Default Stratum B hB cm 0 0 Default Stratum C hC cm 0 0 Default Stratum D (Capillary fringe) hcap cm 25 25 Calculated Total thickness (should equal the water table-building separation) LTGW cm 30 30 Stratum-Specific Properties: Stratum A (Immediately below the building): Vapor permeability kv cm2 5.00E-09 5.00E-09 Default Dry Soil Bulk Density sA g/cm3 1.64 1.64 Default Fractional Organic Carbon Content focA g-C/g-soil 0.001 0.001 Default Total Soil Porosity TA cm3/cm3-soil 0.39 0.39 Default Volumetric Water Content in Stratum A wsA cm3/cm3 0.17 0.17 Default Volumetric Air Content in Stratum A asA cm3/cm3 0.22 0.22 Calculated Stratum B: Dry Soil Bulk Density sB g/cm3 1.64 1.64 Default Fractional Organic Carbon Content focB g-C/g-soil 0.001 0.001 Default Total Soil Porosity TB cm3/cm3-soil 0.39 0.39 Default Volumetric Water Content in Stratum B wsB cm3/cm3 0.17 0.17 Default Volumetric Air Content in Stratum B asB cm3/cm3 0.22 0.22 Calculated Stratum C: Dry Soil Bulk Density sC g/cm3 1.64 1.64 Default Fractional Organic Carbon Content focC g-C/g-soil 0.001 0.001 Default (Page 3 of 3) Total Soil Porosity TC cm3/cm3-soil 0.39 0.39 Default Volumetric Water Content in Stratum C wsC cm3/cm3 0.17 0.17 Default Volumetric Air Content in Stratum C asC cm3/cm3 0.22 0.22 Calculated Stratum D (Capillary fringe): Mean particle diameter D cm 0.03 0.03 Default van Genuchten curve shape factor N - 1.449 1.449 Default Dry Soil Bulk Density sF g/cm3 1.64 1.64 Default Fractional Organic Carbon Content focF g-C/g-soil 0.001 0.001 Default Total Soil Porosity Tcap cm3/cm3-soil 0.39 0.39 Default Residual water content in capillary fringe soil rcap cm3/cm3 0.039 0.039 Default Volumetric Water Content in capillary fringe wcap cm3/cm3 0.322 0.322 Calculated Volumetric Air Content in capillary fringe acap cm3/cm3 0.068 0.068 Calculated Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name F&T ---PAGE BREAK--- DM-1 for DU 4 Single ISM Sample Concentration (0.687 mg/kg dieldrin) ---PAGE BREAK--- RE-1 REPRESENTATIVE CONCENTRATIONS FOR RESIDENTIAL RECEPTORS SURFICIAL SOIL SUB-SURFACE SOIL GROUNDWATER SOIL-VAPOR CHEMICALS OF CONCERN Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions Dieldrin 6.87E-01 Notes: GROUNDWATER AND/OR SURFACE WATER PROTECTION Representative Soil Concentration at the Source [mg/kg] Representative Groundwater Concentration at the Source [mg/L] Representative Groundwater Concentration at the POC [mg/L] NOT USED IN CALCULATIONS Representative Concentration [mg/kg] NOT REQUIRED- USING SOIL VAPOR NOT REQUIRED-USING SOIL VAPOR USE OF SOIL-VAPOR DATA IS NOT ALLOWED UNDER RE-1 Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name REPC-RES ---PAGE BREAK--- RE-1 REPRESENTATIVE CONCENTRATIONS FOR NON-RESIDENTIAL RECEPTORS SURFICIAL SOIL SUB-SURFACE SOIL GROUNDWATER SOIL-VAPOR CHEMICALS OF CONCERN Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions Dieldrin 6.87E-01 Note: Representative Concentration [mg/kg] NOT REQUIRED-USING SOIL VAPOR NOT REQUIRED-USING SOIL VAPOR USE OF SOIL-VAPOR DATA IS NOT ALLOWED UNDER RE-1 Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name REPC-NRES ---PAGE BREAK--- RE-1 REPRESENTATIVE CONCENTRATIONS FOR CONSTRUCTION WORKER SOIL TO TYPICAL DEPTH OF CONSTRUCTION CHEMICALS OF CONCERN Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Dieldrin 6.87E-01 Note: Representative Concentration [mg/kg] Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name REPC-CON ---PAGE BREAK--- RE-1 RISK/HAZARD QUOTIENT FOR RESIDENTIAL RECEPTORS CHILD SURFICIAL SOIL SURFICIAL SOIL CHEMICALS OF CONCERN Risk HQ Risk HQ Risk HQ Risk HQ Risk HQ Risk HQ Risk HQ Risk HQ Dieldrin 2.08E-05 3.04E-01 3.08E-05 8.99E-02 Notes: NPCP: A physical-chemical parameter, required in the calculation of the value, is not available. NTOX: The toxicity parameter(s) required in the calculation of the value, is not available. Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions SUB-SURFACE SOIL GROUNDWATER Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions SOIL-VAPOR Indoor Inhalation of Vapor Emissions SOIL-VAPOR Indoor Inhalation of Vapor Emissions AGE-ADJUSTED SUB-SURFACE SOIL GROUNDWATER NCOC: The chemical is not a COC for the pathway because it was selected, but no representative concentration was entered. Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name RISK R ---PAGE BREAK--- RE-1 RISK/HAZARD QUOTIENT FOR NON-RESIDENTIAL RECEPTORS SURFICIAL SOIL CHEMICALS OF CONCERN Risk HQ Risk HQ Risk HQ Risk HQ Dieldrin 1.12E-06 1.49E-02 Notes: NPCP: A physical-chemical parameter, required in the calculation of the value, is not available. NTOX: The toxicity parameter(s) required in the calculation of the value, is not available. NCOC: The chemical is not a COC for the pathway because it was selected, but no representative concentration was entered. Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions SOIL-VAPOR Indoor Inhalation of Vapor Emissions SUB-SURFACE SOIL GROUNDWATER Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name RISK NR ---PAGE BREAK--- RE-1 RISK/HAZARD QUOTIENT FOR CONSTRUCTION WORKERS SURFICIAL SOIL Risk HQ Dieldrin 1.43E-07 1.25E-02 Notes: NTOX: The toxicity parameter(s) required in the calculation of the value, is not available. CHEMICALS OF CONCERN Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion NCOC: The chemical is not a COC for the pathway because it was selected, but no representative concentration was entered. NPCP: A physical-chemical parameter, required in the calculation of the value, is not available. Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name RISK CON ---PAGE BREAK--- RE-1 SUMMARY OF CUMULATIVE RISK AND HAZARD INDEX RECEPTOR RESIDENTIAL NON-RESIDENTIAL CONSTRUCTION WORKER CHILD AGE-ADJUSTED Risk Hazard Index Risk Hazard Index Risk Hazard Index Risk Hazard Index Surface Soil: Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion 2.08E-05 3.04E-01 3.08E-05 8.99E-02 1.12E-06 1.49E-02 1.43E-07 1.25E-02 Subsurface Soil: Indoor Inhalation of Vapor Emissions NA NA NA NA NA NA Not Applicable Not Applicable Groundwater: Indoor Inhalation of Vapor Emissions NA NA NA NA NA NA Not Applicable Not Applicable Soil-Vapor: Indoor Inhalation of Vapor Emissions from Soil and/or Groundwater NA NA NA NA NA NA Not Applicable Not Applicable Site Risk 2.08E-05 3.08E-05 1.12E-06 1.43E-07 Site Hazard Index 3.04E-01 8.99E-02 1.49E-02 1.25E-02 Routes of Exposure RATL-1/RATL-2 Required? YES NO YES NO NO NO NO NO Notes: NA: Not applicable because the chemical is not a COC for the pathway (no representative concentration entered) or its properties (toxicity and/or physical-chemical) are not available. Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name RISK SUM ---PAGE BREAK--- RATL-1 FOR RESIDENTIAL RECEPTORS CHILD AGE-ADJUSTED SURFICIAL SOIL SUB-SURFACE SOIL GROUNDWATER SOIL-VAPOR SURFICIAL SOIL SUB-SURFACE SOIL GROUNDWATER SOIL-VAPOR CHEMICALS OF CONCERN [mg/kg] [mg/kg] [mg/L] [ug/m3] [mg/kg] [mg/kg] [mg/L] [g/m3] Dieldrin 3.30E-01 NA NA NA 2.23E-01 NA NA NA Notes: Indoor Inhalation of Vapor Emissions Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions NA: Not applicable because the chemical is not a COC for the pathway (no representative concentration entered) or its properties (toxicity and/or physical-chemical) are not available. Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name RATL R ---PAGE BREAK--- RATL-1 FOR NON-RESIDENTIAL RECEPTORS RATLs NOT REQUIRED SURFICIAL SOIL SUB-SURFACE SOIL GROUNDWATER SOIL-VAPOR CHEMICALS OF CONCERN [mg/kg] [mg/kg] [mg/L] [g/m3] Dieldrin 6.11E+00 NA NA NA Notes: Indoor Inhalation of Vapor Emissions NA: Not applicable because the chemical is not a COC for the pathway (no representative concentration enetered) or its properties (toxicity and/or physical-chemical) are not available. Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name RATL NR ---PAGE BREAK--- RATL-1 FOR CONSTRUCTION WORKERS RATLs NOT REQUIRED SURFICIAL SOIL [mg/kg] Dieldrin 4.79E+01 Notes: CHEMICALS OF CONCERN Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion NA: Not applicable because the chemical is not a COC for the pathway (no representative concentration enetered) or its properties (toxicity and/or physical-chemical) are not available. Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name RATL CON ---PAGE BREAK--- DM-2 for DU 4 Calculated Mean Concentration (0.501 mg/kg dieldrin) ---PAGE BREAK--- RE-1 REPRESENTATIVE CONCENTRATIONS FOR RESIDENTIAL RECEPTORS SURFICIAL SOIL SUB-SURFACE SOIL GROUNDWATER SOIL-VAPOR CHEMICALS OF CONCERN Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions Dieldrin 5.01E-01 Notes: GROUNDWATER AND/OR SURFACE WATER PROTECTION Representative Soil Concentration at the Source [mg/kg] Representative Groundwater Concentration at the Source [mg/L] Representative Groundwater Concentration at the POC [mg/L] NOT USED IN CALCULATIONS Representative Concentration [mg/kg] NOT REQUIRED- USING SOIL VAPOR NOT REQUIRED-USING SOIL VAPOR USE OF SOIL-VAPOR DATA IS NOT ALLOWED UNDER RE-1 Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name REPC-RES ---PAGE BREAK--- RE-1 REPRESENTATIVE CONCENTRATIONS FOR NON-RESIDENTIAL RECEPTORS SURFICIAL SOIL SUB-SURFACE SOIL GROUNDWATER SOIL-VAPOR CHEMICALS OF CONCERN Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions Dieldrin 5.01E-01 Note: Representative Concentration [mg/kg] NOT REQUIRED-USING SOIL VAPOR NOT REQUIRED-USING SOIL VAPOR USE OF SOIL-VAPOR DATA IS NOT ALLOWED UNDER RE-1 Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name REPC-NRES ---PAGE BREAK--- RE-1 REPRESENTATIVE CONCENTRATIONS FOR CONSTRUCTION WORKER SOIL TO TYPICAL DEPTH OF CONSTRUCTION CHEMICALS OF CONCERN Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Dieldrin 5.01E-01 Note: Representative Concentration [mg/kg] Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name REPC-CON ---PAGE BREAK--- RE-1 RISK/HAZARD QUOTIENT FOR RESIDENTIAL RECEPTORS CHILD SURFICIAL SOIL SURFICIAL SOIL CHEMICALS OF CONCERN Risk HQ Risk HQ Risk HQ Risk HQ Risk HQ Risk HQ Risk HQ Risk HQ Dieldrin 1.52E-05 2.21E-01 2.25E-05 6.55E-02 Notes: NPCP: A physical-chemical parameter, required in the calculation of the value, is not available. NTOX: The toxicity parameter(s) required in the calculation of the value, is not available. Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions SUB-SURFACE SOIL GROUNDWATER Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions SOIL-VAPOR Indoor Inhalation of Vapor Emissions SOIL-VAPOR Indoor Inhalation of Vapor Emissions AGE-ADJUSTED SUB-SURFACE SOIL GROUNDWATER NCOC: The chemical is not a COC for the pathway because it was selected, but no representative concentration was entered. Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name RISK R ---PAGE BREAK--- RE-1 RISK/HAZARD QUOTIENT FOR NON-RESIDENTIAL RECEPTORS SURFICIAL SOIL CHEMICALS OF CONCERN Risk HQ Risk HQ Risk HQ Risk HQ Dieldrin 8.20E-07 1.09E-02 Notes: NPCP: A physical-chemical parameter, required in the calculation of the value, is not available. NTOX: The toxicity parameter(s) required in the calculation of the value, is not available. NCOC: The chemical is not a COC for the pathway because it was selected, but no representative concentration was entered. Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions SOIL-VAPOR Indoor Inhalation of Vapor Emissions SUB-SURFACE SOIL GROUNDWATER Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name RISK NR ---PAGE BREAK--- RE-1 RISK/HAZARD QUOTIENT FOR CONSTRUCTION WORKERS SURFICIAL SOIL Risk HQ Dieldrin 1.05E-07 9.15E-03 Notes: NTOX: The toxicity parameter(s) required in the calculation of the value, is not available. CHEMICALS OF CONCERN Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion NCOC: The chemical is not a COC for the pathway because it was selected, but no representative concentration was entered. NPCP: A physical-chemical parameter, required in the calculation of the value, is not available. Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name RISK CON ---PAGE BREAK--- RE-1 SUMMARY OF CUMULATIVE RISK AND HAZARD INDEX RECEPTOR RESIDENTIAL NON-RESIDENTIAL CONSTRUCTION WORKER CHILD AGE-ADJUSTED Risk Hazard Index Risk Hazard Index Risk Hazard Index Risk Hazard Index Surface Soil: Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion 1.52E-05 2.21E-01 2.25E-05 6.55E-02 8.20E-07 1.09E-02 1.05E-07 9.15E-03 Subsurface Soil: Indoor Inhalation of Vapor Emissions NA NA NA NA NA NA Not Applicable Not Applicable Groundwater: Indoor Inhalation of Vapor Emissions NA NA NA NA NA NA Not Applicable Not Applicable Soil-Vapor: Indoor Inhalation of Vapor Emissions from Soil and/or Groundwater NA NA NA NA NA NA Not Applicable Not Applicable Site Risk 1.52E-05 2.25E-05 8.20E-07 1.05E-07 Site Hazard Index 2.21E-01 6.55E-02 1.09E-02 9.15E-03 Routes of Exposure RATL-1/RATL-2 Required? YES NO YES NO NO NO NO NO Notes: NA: Not applicable because the chemical is not a COC for the pathway (no representative concentration entered) or its properties (toxicity and/or physical-chemical) are not available. Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name RISK SUM ---PAGE BREAK--- RATL-1 FOR RESIDENTIAL RECEPTORS CHILD AGE-ADJUSTED SURFICIAL SOIL SUB-SURFACE SOIL GROUNDWATER SOIL-VAPOR SURFICIAL SOIL SUB-SURFACE SOIL GROUNDWATER SOIL-VAPOR CHEMICALS OF CONCERN [mg/kg] [mg/kg] [mg/L] [ug/m3] [mg/kg] [mg/kg] [mg/L] [g/m3] Dieldrin 3.30E-01 NA NA NA 2.23E-01 NA NA NA Notes: Indoor Inhalation of Vapor Emissions Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions NA: Not applicable because the chemical is not a COC for the pathway (no representative concentration entered) or its properties (toxicity and/or physical-chemical) are not available. Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name RATL R ---PAGE BREAK--- RATL-1 FOR NON-RESIDENTIAL RECEPTORS RATLs NOT REQUIRED SURFICIAL SOIL SUB-SURFACE SOIL GROUNDWATER SOIL-VAPOR CHEMICALS OF CONCERN [mg/kg] [mg/kg] [mg/L] [g/m3] Dieldrin 6.11E+00 NA NA NA Notes: Indoor Inhalation of Vapor Emissions NA: Not applicable because the chemical is not a COC for the pathway (no representative concentration enetered) or its properties (toxicity and/or physical-chemical) are not available. Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name RATL NR ---PAGE BREAK--- RATL-1 FOR CONSTRUCTION WORKERS RATLs NOT REQUIRED SURFICIAL SOIL [mg/kg] Dieldrin 4.79E+01 Notes: CHEMICALS OF CONCERN Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion NA: Not applicable because the chemical is not a COC for the pathway (no representative concentration enetered) or its properties (toxicity and/or physical-chemical) are not available. Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name RATL CON ---PAGE BREAK--- DM-3 for DU 4 Calculated 95% UCL Concentration (0.878 mg/kg dieldrin) ---PAGE BREAK--- RE-1 REPRESENTATIVE CONCENTRATIONS FOR RESIDENTIAL RECEPTORS SURFICIAL SOIL SUB-SURFACE SOIL GROUNDWATER SOIL-VAPOR CHEMICALS OF CONCERN Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions Dieldrin 8.78E-01 Notes: GROUNDWATER AND/OR SURFACE WATER PROTECTION Representative Soil Concentration at the Source [mg/kg] Representative Groundwater Concentration at the Source [mg/L] Representative Groundwater Concentration at the POC [mg/L] NOT USED IN CALCULATIONS Representative Concentration [mg/kg] NOT REQUIRED- USING SOIL VAPOR NOT REQUIRED-USING SOIL VAPOR USE OF SOIL-VAPOR DATA IS NOT ALLOWED UNDER RE-1 Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name REPC-RES ---PAGE BREAK--- RE-1 REPRESENTATIVE CONCENTRATIONS FOR NON-RESIDENTIAL RECEPTORS SURFICIAL SOIL SUB-SURFACE SOIL GROUNDWATER SOIL-VAPOR CHEMICALS OF CONCERN Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions Dieldrin 8.78E-01 Note: Representative Concentration [mg/kg] NOT REQUIRED-USING SOIL VAPOR NOT REQUIRED-USING SOIL VAPOR USE OF SOIL-VAPOR DATA IS NOT ALLOWED UNDER RE-1 Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name REPC-NRES ---PAGE BREAK--- RE-1 REPRESENTATIVE CONCENTRATIONS FOR CONSTRUCTION WORKER SOIL TO TYPICAL DEPTH OF CONSTRUCTION CHEMICALS OF CONCERN Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Dieldrin 8.78E-01 Note: Representative Concentration [mg/kg] Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name REPC-CON ---PAGE BREAK--- RE-1 RISK/HAZARD QUOTIENT FOR RESIDENTIAL RECEPTORS CHILD SURFICIAL SOIL SURFICIAL SOIL CHEMICALS OF CONCERN Risk HQ Risk HQ Risk HQ Risk HQ Risk HQ Risk HQ Risk HQ Risk HQ Dieldrin 2.66E-05 3.88E-01 3.94E-05 1.15E-01 Notes: NPCP: A physical-chemical parameter, required in the calculation of the value, is not available. NTOX: The toxicity parameter(s) required in the calculation of the value, is not available. Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions SUB-SURFACE SOIL GROUNDWATER Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions SOIL-VAPOR Indoor Inhalation of Vapor Emissions SOIL-VAPOR Indoor Inhalation of Vapor Emissions AGE-ADJUSTED SUB-SURFACE SOIL GROUNDWATER NCOC: The chemical is not a COC for the pathway because it was selected, but no representative concentration was entered. Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name RISK R ---PAGE BREAK--- RE-1 RISK/HAZARD QUOTIENT FOR NON-RESIDENTIAL RECEPTORS SURFICIAL SOIL CHEMICALS OF CONCERN Risk HQ Risk HQ Risk HQ Risk HQ Dieldrin 1.44E-06 1.91E-02 Notes: NPCP: A physical-chemical parameter, required in the calculation of the value, is not available. NTOX: The toxicity parameter(s) required in the calculation of the value, is not available. NCOC: The chemical is not a COC for the pathway because it was selected, but no representative concentration was entered. Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions SOIL-VAPOR Indoor Inhalation of Vapor Emissions SUB-SURFACE SOIL GROUNDWATER Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name RISK NR ---PAGE BREAK--- RE-1 RISK/HAZARD QUOTIENT FOR CONSTRUCTION WORKERS SURFICIAL SOIL Risk HQ Dieldrin 1.83E-07 1.60E-02 Notes: NTOX: The toxicity parameter(s) required in the calculation of the value, is not available. CHEMICALS OF CONCERN Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion NCOC: The chemical is not a COC for the pathway because it was selected, but no representative concentration was entered. NPCP: A physical-chemical parameter, required in the calculation of the value, is not available. Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name RISK CON ---PAGE BREAK--- RE-1 SUMMARY OF CUMULATIVE RISK AND HAZARD INDEX RECEPTOR RESIDENTIAL NON-RESIDENTIAL CONSTRUCTION WORKER CHILD AGE-ADJUSTED Risk Hazard Index Risk Hazard Index Risk Hazard Index Risk Hazard Index Surface Soil: Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion 2.66E-05 3.88E-01 3.94E-05 1.15E-01 1.44E-06 1.91E-02 1.83E-07 1.60E-02 Subsurface Soil: Indoor Inhalation of Vapor Emissions NA NA NA NA NA NA Not Applicable Not Applicable Groundwater: Indoor Inhalation of Vapor Emissions NA NA NA NA NA NA Not Applicable Not Applicable Soil-Vapor: Indoor Inhalation of Vapor Emissions from Soil and/or Groundwater NA NA NA NA NA NA Not Applicable Not Applicable Site Risk 2.66E-05 3.94E-05 1.44E-06 1.83E-07 Site Hazard Index 3.88E-01 1.15E-01 1.91E-02 1.60E-02 Routes of Exposure RATL-1/RATL-2 Required? YES NO YES NO NO NO NO NO Notes: NA: Not applicable because the chemical is not a COC for the pathway (no representative concentration entered) or its properties (toxicity and/or physical-chemical) are not available. Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name RISK SUM ---PAGE BREAK--- RATL-1 FOR RESIDENTIAL RECEPTORS CHILD AGE-ADJUSTED SURFICIAL SOIL SUB-SURFACE SOIL GROUNDWATER SOIL-VAPOR SURFICIAL SOIL SUB-SURFACE SOIL GROUNDWATER SOIL-VAPOR CHEMICALS OF CONCERN [mg/kg] [mg/kg] [mg/L] [ug/m3] [mg/kg] [mg/kg] [mg/L] [g/m3] Dieldrin 3.30E-01 NA NA NA 2.23E-01 NA NA NA Notes: Indoor Inhalation of Vapor Emissions Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions NA: Not applicable because the chemical is not a COC for the pathway (no representative concentration entered) or its properties (toxicity and/or physical-chemical) are not available. Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name RATL R ---PAGE BREAK--- RATL-1 FOR NON-RESIDENTIAL RECEPTORS RATLs NOT REQUIRED SURFICIAL SOIL SUB-SURFACE SOIL GROUNDWATER SOIL-VAPOR CHEMICALS OF CONCERN [mg/kg] [mg/kg] [mg/L] [g/m3] Dieldrin 6.11E+00 NA NA NA Notes: Indoor Inhalation of Vapor Emissions NA: Not applicable because the chemical is not a COC for the pathway (no representative concentration enetered) or its properties (toxicity and/or physical-chemical) are not available. Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion Indoor Inhalation of Vapor Emissions Indoor Inhalation of Vapor Emissions Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name RATL NR ---PAGE BREAK--- RATL-1 FOR CONSTRUCTION WORKERS RATLs NOT REQUIRED SURFICIAL SOIL [mg/kg] Dieldrin 4.79E+01 Notes: CHEMICALS OF CONCERN Inhalation of Vapors and Particulates, Dermal Contact, and Accidental Ingestion NA: Not applicable because the chemical is not a COC for the pathway (no representative concentration enetered) or its properties (toxicity and/or physical-chemical) are not available. Path : C:\Users\rachel.gibeault\Downloads Page 1 of 1 Sheet name RATL CON