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HomeMy WebLinkAboutAppendix E - Phase II Environmental Site Assessment 233 Technology Way, Suite 7, Rocklin, CA 95765 Tel 916.782.8700 fax 916.782.8750 Phase 2 Investigation Report of Findings Covelop Properties Parcel 1 -1390 Walker Street Parcel 2 – 280-290 Pismo Street Parcel 3 – 251 Pacific Street San Luis Obispo, California April 5, 2024 Project Number 2162RV43 Prepared For: Covelop San Luis Obispo, California Prepared By Environmental Engineering, Consulting & Remediation, Inc. 233 Technology Way #7 Rocklin, CA 95765 Project Number 2162RV43 April 5, 2024 E2C Remediation LIST OF FIGURES........................................................................................................ ii LIST OF TABLES.......................................................................................................... ii LIST OF APPENDICES ................................................................................................. ii 1.0 INVESTIGATION PURPOSE ................................................................................ 1 2.0 SOIL-VAPOR SAMPLING .................................................................................... 2 2.1 Soil-Vapor Sampling Methods and Procedures ............................................................. 2 2.2 Soil-Vapor Sampling Methods and Procedures ............................................................. 2 2.2.1 Direct-Push & Sampling Components ....................................................... 3 2.2.2 Purge/Sampling Method ........................................................................... 4 2.2.3 Chain of Custody Records ......................................................................... 5 2.2.4 Laboratory Certification and Analysis ....................................................... 5 2.2.5 Sample Handling ...................................................................................... 5 2.2.6 Holding Time ............................................................................................ 5 2.3 Soil-Vapor Analytical Results ........................................................................................ 5 2.3.1 Summary of Results ................................................................................. 5 2.3.2 Soil-Vapor Data Conclusions .................................................................. 11 2.4 Soil Sampling .............................................................................................................. 11 2.4.1 Summary of PS Soil Analytical Data ....................................................... 11 2.4.2 PS Soil Sampling Conclusions ................................................................ 13 3.0 RECOMMENDATIONS ...................................................................................... 14 4.0 LIMITATIONS AND CERTIFICATION ................................................................. 16 Project Number 2162RV43 April 5, 2024 E2C Remediation ii LIST OF FIGURES Figure 1 Site Location Map Figure 2 Site Plan – Covelop Properties Figure 3 Site Benzene and Arsenic Plot LIST OF TABLES Table 1 Summary of Soil Vapor Data Compared to ESLs for Combined Properties Table 2 Summary of Summary of Perimeter Soil Sample Analytical Data vs ESLs LIST OF APPENDICES Appendix A Soil Vapor Sampling and Soil Sampling Workplan Former PG&E Manufactured Gas Plant Property San Luis Obispo, California, dated February 12, 2024 Appendix B Site Investigation Field Notes Appendix C Soil-Vapor Laboratory Analytical Report Appendix D EPA Method 8260B, EPA Method 8270C and Arsenic and Lead Laboratory Analytical Reports Appendix E RWQCB Vapor and Soil ESLs Appendix F PROVEN TECHNOLOGIES AND REMEDIES GUIDANCE – REMEDIATION OF METALS IN SOIL, DTSC, 2007 Project Number 2162RV43 April 5, 2024 E2C Remediation 1 1.0 INVESTIGATION PURPOSE The purpose of this investigation was to collect volatile organic compound (VOC), principally Tetrachloroethene (PCE), data for shallow soil-gas within the combined Covelop properties, consisting of four (4) parcels of land located in the City of San Luis Obispo (the “City”), San Luis Obispo County (the “County”), California (see Figure 1 for Site Location Map). The four (4) Parcels include County Assessor Lots 1, 2, 3, 8, 9, 10, 11 and 12. The parcels have been divided into four (4) operating units (with Lot numbers indicated), as identified below:  Parcel 1 Operating Unit – Former SLO 1 – MGP: APN 002-505-005: 1390 Walker Street, Lots 8 and 9, 14,000 square feet (ft2) (0.34-acre);  Parcel 2 Operating Unit – Former SLO 1 – MGP: APN 002-505-006: 280- 290 Pismo Street (Lots 10, 11 and 12), 21,900 ft2 (0.50-acre);  Parcel 3 OU #1 – Former PG&E Zone 1 Substation: APN 002-505-001: 251 Pacific Street (Lots 1 and 2), 11,600 ft2 (0.27-acre); and  Parcel 4 OU #2 – Former Harris Property: APN 002-505-009: 265 Pacific Street (Lot 3), 8,760 ft2 (0.20-acre). Note: This ROF details the work and findings for Parcels 1, 2 and 3. The investigative work for Parcel 4 has been reported under separate cover, Phase 2 Investigation Report of Findings, 265 Pacific Street, San Luis Obispo, California, dated April 3, 2024. Additionally, for Parcels 1, 2 and 3, soil samples were collected at perimeter locations to assess human health risks for on-site construction workers during potential construction processes at property. Similarly, the data from the vapor survey in Parcels 1, 2 and 3 will be used to evaluate whether the soil vapor data warrants remedial measures for the proposed residential-use area due to both PCE and Volatile Hydrocarbons from the former PG&E Manufactured Gas Plant (MGP) operations at and near the Site. Historical investigations had revealed the presence of Tetrachloroethene (PCE) in soil - gas at concentrations potentially detrimental to human health across the Site and at adjacent and nearby properties. Parcels 1, 2 and 3 each have undergone remedial efforts for the following: Total Petroleum Hydrocarbons (TPH) as diesel (TPHd), TPH as motor oil (TPHmo), naphthalene, Polycyclic Aromatic Hydrocarbons (PAHs), Arsenic and Lead, which were all found to occur at elevated concentrations potentially detrimental to human health in soils in Parcels 1-4. No soils were excavated and/or remediated from within and under the Historic Building (see Figure 2 for location of building). There is a LUC in place for Parcels 1, 2 and 3. The LUC in place for the parcels restricts these properties for use as follows: a residence, includes mobile home or factory-built housing constructed or installed for use as residential human habitation, a hospital for humans, a public or private school for persons under 18 years of age, and a day care center for children. Project Number 2162RV43 April 5, 2024 E2C Remediation 2 2.0 SOIL-VAPOR SAMPLING Note: Soil-vapor sampling was conducted as outlined in the Draft document (copy included as Appendix A):  Covelop SV-SS Workplan 1-31-24 mod 2-12-24 2.1 Soil-Vapor Sampling Methods and Procedures For the soil-vapor sampling, on March 5 and 8, 2024 a representative of E2C Remediation (E2C), from HARO Environmental, supervised the advancement of twelve (12 soil-vapor probes (SVP-3, SVP-5, SVP-6, and SVP-7-SVP-15) and attempted to collect soil-vapor samples from each of those probes (see Figure 2 for locations):  SVP-3 was placed just northwest of the Historic Building;  SVP-5 was placed within the Historic Building;  SVP-6 was placed between the Historic Building and Pismo Street;  SVP-15 was placed just outside and adjacent to the lower left corner of the Historic Building; and  SVP-7 through SVP-14 were placed in and around the proposed residential-use area. Note: There was no SVP-4 proposed. For the soil vapor verification sampling, as none of the borings reached groundwater, the San Luis Obispo County Environmental Health Department did not require permits for this work. The direct-push boring method was used to install each of the SVP- soil vapor probes. As such, no investigative-derived waste was generated. Prior to conducting the fieldwork, USA Underground was notified to provide utility clearance. After sample collection at each location, the rod from each boring was removed and then the boring was properly abandoned using hydrated bentonite to the surface once the sampling event was completed. 2.2 Soil-Vapor Sampling Methods and Procedures On March 5, 2024, soil vapor samples were collected at eleven (11) of the twelve (12) SVP locations. The SVP samples were collected in accordance with guidelines outlined in the Advisory – Active Soil Gas Investigation (California EPA, July 2015). SVPs were advanced using the direct-push method. A detailed Sampling and Analysis plan was included as part of the Appendix A document, Soil Vapor Sampling and Soil Sampling Workplan , Former PG&E Manufactured Gas Plant Property, San Luis Obispo, California, dated February 12, 2024 Project Number 2162RV43 April 5, 2024 E2C Remediation 3 2.2.1 Direct-Push & Sampling Components Direct-push methods were used to assess the presence, concentrations and distribution of VOCs in the vadose zone (that area from the water table up to ground surface. Common sampling approaches include both active soil gas sampling and installation of devices that passively collect VOCs over a longer period (days to weeks). For the purpose of this investigation, the active soil-gas sampling method was utilized. Prior to advancing each SVP boring, clean downhole equipment was used. Once the direct-push method had reached the desired depth, in this investigation five (5) feet below ground surface (bgs), Teflon@ tubing with an adapter on the end was lowered down the rod and threaded into the back of the expendable point holder. The drive rod was then extracted a fixed distance (often 6 to 12 inches) so that soil vapor from the formation could be sampled through the Teflon@ tube at the surface. Components of soil-gas sampling probe SVP-5 inside Historic Building Note: For probes in outside areas, soil-gas sampling probes were set up the same as at SVP-5. Each location required purging and sampling. The system at each probe was then purged of three (3) system volumes before each soil gas sample was collected. Once the sampling train was purged, the desired gas sampling device was placed in line and sampling was conducted. Sampling was accomplished using pre-cleaned laboratory supplied Summa canisters. Project Number 2162RV43 April 5, 2024 E2C Remediation 4 Typical Components for soil-gas sampling in Outside Areas Components for soil-gas sampling at SV-5 inside Historic Building 2.2.2 Purge/Sampling Method Purging/sampling at rates between 100 to 200 ml/min to limit stripping, prevent ambient air from diluting the soil-gas samples, and to reduce the variability of purging rates. The low flow purge rate increase d the likelihood that representative samples were collected. Project Number 2162RV43 April 5, 2024 E2C Remediation 5 2.2.3 Chain of Custody Records A chain of custody form was completed to maintain the custodial integrity of samples. Probe installation times and sample collection times were included in the field notes (see Appendix B) and on the chain of custody form (see Appendix C), respectively. 2.2.4 Laboratory Certification and Analysis The State of California EPA ELAP-Certified analytical laboratory analyzed the soil- vapor samples from SVP-3, SVP-5, SVP-6, and SVP-7 through SVP-15 using EPA Method 8260B (8260B) for volatile organics. The State of California EPA ELAP-Certified analytical laboratory also analyzed the soil- vapor samples from SVP-3, SVP-5, SVP-6 using EPA Method TO-3M for Total Petroleum Hydrocarbons as gasoline (TPHg). Note: Soil-vapor samples could not be collected from SVP-10, SVP-11 and SVP-14. 2.2.4.1 Detection Limits for Target Compounds Analytical equipment calibration was in accordance with the most current ASGI-ESL. Detection limits were low enough for the analytical data to be compared to the ESL’s (RWQCB, 2019). This allowed for the evaluation of potential vapor intrusion into indoor air, as outlined in the ESL Table included in Appendix E. 2.2.4.2 Target Compounds The ASGI (dated February 25, 1997) includes twenty-three (23) primary and four (4) other target VOCs. All quantifiable results have been reported (see Appendix C for analytical laboratory reports; see Appendix E for ESL Tables). 2.2.5 Sample Handling Exposure to light and changes in temperature and pressure will accelerate sample degradation. In order to protect sample integrity, the soil-gas samples were not chilled and were not subjected to changes in ambient pressure during hand-delivery. 2.2.6 Holding Time All soil-vapor samples were collected in Summa canisters and were analyzed at Enthalpy Analytical Laboratories, Inc. in Orange, California (Enthalpy) within 2 weeks after collection. 2.3 Soil-Vapor Analytical Results Analytical results for soil-vapor from SVP-3, SVP-5, SVP-6 and SVP-7 through SVP-15 are summarized in Table 1. A comparison with ESLs is also presented in the table. 2.3.1 Summary of Results The following compounds in micrograms per cubic meter (g/m3) were reported (note: the ESL for each detected compound is provided for comparison. Note: For proposed commercial-use areas, the Commercial Human Health Risk Level (HHRL) values for Sub-slab soil gas Vapor Intrusion are indicated. For proposed residential-use areas the Residential HHRLs are indicated for comparison. If an ESL Project Number 2162RV43 April 5, 2024 E2C Remediation 6 value is not listed, that means that there is no ESL for that compound) (see Appendix E for ESL Table). 2.3.1.1 Proposed Commercial-Use Areas: SVP-3  Freon 112 at 2.1 g/m3 – ESL not listed;  Chloromethane at 3.0 g/m3 – No ESL for Cancer Risk; for non-cancer hazard, extremely high (13,140 g/m3;  Acetone at 83 g/m3 - No ESL for Cancer Risk; for non-cancer hazard, extremely high (4,526,000 g/m3);  Carbon Disulfide at 15 g/m3 – ESL not listed;  Isopropanol at 8.9 g/m3 – Not listed;  Methylene Chloride at 1.3 g/m3 – 408.8 g/m3 for Cancer Risk; for non-cancer hazard, extremely high (58,400 g/m3);  n-Hexane at 56 g/m3 – Not listed;  2-Butanone at 24 g/m3 – Not listed;  Benzene at 49 g/m3 – Cancer Risk = 14.1 g/m3; for non-cancer hazard = 438.0 g/m3:  4-Methyl-2-Pentanone at 2.2 g/m3 – Not listed;  Toluene at 26 g/m3 - No ESL for Cancer Risk; for non-cancer hazard, extremely high (43,800 g/m3);  PCE at 7.7 g/m3 – 67.0 g/m3 for Cancer Risk; for non-cancer hazard, very high (5.840 g/m3);  Ethylbenzene at 6.5 g/m3 – 163.5 g/m3 for Cancer Risk; for non-cancer hazard, very high (146,000 g/m3);  m,p-Xylenes at 9.8 g/m3; see Total Xylenes below for Cancer Risk and non- cancer hazard;  o-Xylenes at 3.8 g/m3; see Total Xylenes below for Cancer Risk and non- cancer hazard;  Styrene at 2.6 g/m3 – No ESL for Cancer Risk; for non-cancer hazard, very high (131,400 g/m3);  1,3,5-Trimethylbenzene at 3.3 g/m3 – Not listed;  1,2,4-Trimethylbenzene at 3.8 g/m3 – Not listed:  Total Xylenes at 14 g/m3 - No ESL for Cancer Risk; for non-cancer hazard, very high (14,600 g/m3);  TPH gasoline at 1,100 g/m3 - No ESL for Cancer Risk; for non-cancer hazard, very high (83,428.6 g/m3); and  All other 8260B compounds non-detect at each compound’s respective Reporting Limit (RL) (see Table 1). Project Number 2162RV43 April 5, 2024 E2C Remediation 7 SVP-5  Freon 112 at 1.4 g/m3 – ESL not listed;  Chloromethane at 1.3 g/m3 – No ESL for Cancer Risk; for non-cancer hazard, extremely high (13,140 g/m3;  Acetone at 63 g/m3 - No ESL for Cancer Risk; for non-cancer hazard, extremely high (4,526,000 g/m3);  Carbon Disulfide at 6.8 g/m3 – ESL not listed;  Isopropanol at 7.4 g/m3 – Not listed;  Methylene Chloride at 1.0 g/m3 – 408.8 g/m3 for Cancer Risk; for non-cancer hazard, extremely high (58,400 g/m3);  n-Hexane at 13 g/m3 – Not listed;  2-Butanone at 15 g/m3 – Not listed;  Benzene at 26 g/m3 – Cancer Risk = 14.1 g/m3; for non-cancer hazard = 438.0 g/m3;  4-Methyl-2-Pentanone at 1.7 g/m3 – Not listed;  Toluene at 7.4 g/m3 - No ESL for Cancer Risk; for non-cancer hazard, extremely high (43,800 g/m3);  PCE at 13 g/m3 – 67.0 g/m3 for Cancer Risk; for non-cancer hazard, very high (5.840 g/m3);  Styrene at 2.3 g/m3 – No ESL for Cancer Risk; for non-cancer hazard, very high (131,400 g/m3);  TPH gasoline at 980 g/m3 - No ESL for Cancer Risk; for non-cancer hazard, very high (83,428.6 g/m3); and  All other 8260B compounds non-detect at each compound’s respective RL (see Table 1). SVP-6  Freon 112 at 1.7 g/m3 – ESL not listed;  Acetone at 30 g/m3 - No ESL for Cancer Risk; for non-cancer hazard, extremely high (4,526,000 g/m3);  Carbon Disulfide at 6.0 g/m3 – Not listed;  Isopropanol at 8.4 g/m3 – Not listed;  n-Hexane at 5.1 g/m3 – Not listed;  2-Butanone at 8.2 g/m3 – Not listed;  Benzene at 2.6 g/m3 – Cancer Risk = 14.1 g/m3; for non-cancer hazard = 438.0 g/m3;  Toluene at 1.4 g/m3 - No ESL for Cancer Risk; for non-cancer hazard, extremely high (43,800 g/m3);  PCE as non-detect<1.9 g/m3 – 67.0 g/m3 for Cancer Risk; for non-cancer hazard, very high (5.840 g/m3);  TPH gasoline at 850 g/m3 - No ESL for Cancer Risk; for non-cancer hazard, extremely high (83,428.6 g/m3); and Project Number 2162RV43 April 5, 2024 E2C Remediation 8  All other 8260B compounds non-detect at each compound’s respective RL (see Table 1). SVP-15  Freon 112 at 1.8 g/m3 – ESL not listed;  Chloromethane at 1.7 g/m3 – No ESL for Cancer Risk; for non-cancer hazard, extremely high (13,140 g/m3;  Acetone at 50 g/m3 - No ESL for Cancer Risk; for non-cancer hazard, extremely high (4,526,000 g/m3);  Carbon Disulfide at 0.79 g/m3 – Not listed;  Isopropanol at 7.6 g/m3 – Not listed;  Methylene Chloride at 1.8 g/m3 – 408.8 g/m3 for Cancer Risk; for non-cancer hazard, extremely high (58,400 g/m3);  n-Hexane at 3.1 g/m3 – Not listed;  2-Butanone at 8.6 g/m3 – Not listed;  Benzene at 4.9 g/m3 – Cancer Risk = 14.1 g/m3; for non-cancer hazard = 438.0 g/m3;  4-Methyl-2-Pentanone at 1.1 g/m3 – Not listed;  Toluene at 3.1 g/m3 - No ESL for Cancer Risk; for non-cancer hazard, extremely high (43,800 g/m3);  PCE as non-detect<1.9 g/m3 – 67.0 g/m3 for Cancer Risk; for non-cancer hazard, very high (5.840 g/m3); and  All other 8260B compounds non-detect at each compound’s respective RL (see Table 1). 2.3.1.2 Proposed Residential-Use Areas: SVP-7  Freon 112 at 1.7 g/m3 – ESL not listed;  Acetone at 28 g/m3 - No ESL for Cancer Risk; for non-cancer hazard, extremely high (4,526,000 g/m3);  Carbon Disulfide at 1.2 g/m3 – Not listed;  Isopropanol at 3.4 g/m3 – Not listed;  2-Butanone at 14 g/m3 – Not listed;  Chloroform at 2.2 g/m3 – Cancer Risk = 4.1 g/m3; for non-cancer hazard = 3,406.7 g/m3;  Toluene at 1.2 g/m3 - No ESL for Cancer Risk; for non-cancer hazard, extremely high (43,800 g/m3);  PCE at 2.8 g/m3 – 15.3 g/m3 for Cancer Risk; for non-cancer hazard = 1,390.5 g/m3;  2-Hexanone at 3.2 g/m3 – Not listed; and  All other 8260B compounds non-detect at each compound’s respective RL (see Table 1). Project Number 2162RV43 April 5, 2024 E2C Remediation 9 SVP-8  Chloromethane at 4.2 g/m3 – No ESL for Cancer Risk; for non-cancer hazard, extremely high (13,140 g/m3;  Acetone at 280 g/m3 - No ESL for Cancer Risk; for non-cancer hazard, extremely high (4,526,000 g/m3);  Carbon Disulfide at 24 g/m3 – Not listed;  Isopropanol at 43 g/m3 – Not listed;  n-Hexane at 39 g/m3 – Not listed;  2-Butanone at 75 g/m3 – Not listed;  Benzene at 73 g/m3 – Cancer Risk = 3.23 g/m3; for non-cancer hazard = 438.0 g/m3;  4-Methyl-2-Pentanone at 5.2 g/m3 – Not listed;  Toluene at 27 g/m3 - No ESL for Cancer Risk; for non-cancer hazard, extremely high (43,800 g/m3);  PCE as non-detect<1.9 g/m3 – 15.3 g/m3 for Cancer Risk; for non-cancer hazard = 1,390.5 g/m3;  Styrene at 5.0 g/m3 – No ESL for Cancer Risk; for non-cancer hazard, very high (131,400 g/m3); and  All other 8260B compounds non-detect at each compound’s respective RL (see Table 1). SVP-9  Freon 112 at 1.9 g/m3 – ESL not listed;  Acetone at 57 g/m3 - No ESL for Cancer Risk; for non-cancer hazard, extremely high (4,526,000 g/m3);  Carbon Disulfide at 0.92 g/m3 – Not listed;  Isopropanol at 6.5 g/m3 – Not listed;  2-Butanone at 21 g/m3 – Not listed;  4-Methyl-2-Pentanone at 1.4 g/m3 – Not listed;  PCE as non-detect<1.9 g/m3 – 15.3 g/m3 for Cancer Risk; for non-cancer hazard = 1,390.5 g/m3;  2-Hexanone at 5.8 g/m3 – Not listed; and  All other 8260B compounds non-detect at each compound’s respective RL (see Table 1). SVP-10 Soil-vapor sample unable to be collected. SVP-11 Soil-vapor sample unable to be collected. SVP-12  Freon 112 at 2.2 g/m3 – ESL not listed; Project Number 2162RV43 April 5, 2024 E2C Remediation 10  Chloromethane at 1.7 g/m3 – No ESL for Cancer Risk; for non-cancer hazard, extremely high (13,140 g/m3;  Acetone at 100 g/m3 - No ESL for Cancer Risk; for non-cancer hazard, extremely high (4,526,000 g/m3);  Carbon Disulfide at 2.2 g/m3 – Not listed;  Isopropanol at 6.9 g/m3 – Not listed;  Methylene Chloride at 1.5 g/m3 – 408.8 g/m3 for Cancer Risk; for non-cancer hazard, extremely high (58,400 g/m3);  n-Hexane at 8.6 g/m3 – Not listed;  2-Butanone at 24 g/m3 – Not listed;  Benzene at 4.0 g/m3 – Cancer Risk = 3.23 g/m3; for non-cancer hazard = 438.0 g/m3;  Toluene at 5.0 g/m3 - No ESL for Cancer Risk; for non-cancer hazard, extremely high (43,800 g/m3);  PCE as non-detect<1.9 g/m3 – 15.3 g/m3 for Cancer Risk; for non-cancer hazard = 1,390.5 g/m3; and  All other 8260B compounds non-detect at each compound’s respective RL (see Table 1). SVP-13  Freon 112 at 1.6 g/m3 – ESL not listed;  Chloromethane at 0.56 g/m3 – No ESL for Cancer Risk; for non-cancer hazard, extremely high (13,140 g/m3;  Acetone at 230 g/m3 - No ESL for Cancer Risk; for non-cancer hazard, extremely high (4,526,000 g/m3);  Carbon Disulfide at 2.7 g/m3 – Not listed;  Isopropanol at 13 g/m3 – Not listed;  n-Hexane at 9.0 g/m3 – Not listed;  2-Butanone at 72 g/m3 – Not listed;  Benzene at 12 g/m3 – Cancer Risk = 3.23 g/m3; for non-cancer hazard = 438.0 g/m3;  4-Methyl-2-Pentanone at 4.1 g/m3 – Not listed;  Toluene at 7.2 g/m3 - No ESL for Cancer Risk; for non-cancer hazard, extremely high (43,800 g/m3);  PCE at 10 g/m3 – 15.3 g/m3 for Cancer Risk; for non-cancer hazard = 1,390.5 g/m3;  2-Hexanone at 7.5 g/m3 – Not listed; and  Ethylbenzene at 1.3 g/m3 – 163.5 g/m3 for Cancer Risk; for non-cancer hazard, very high (146,000 g/m3);  Styrene at 1.8 g/m3 – No ESL for Cancer Risk; for non-cancer hazard, very high (131,400 g/m3); and Project Number 2162RV43 April 5, 2024 E2C Remediation 11  All other 8260B compounds non-detect at each compound’s respective RL (see Table 1). 2.3.2 Soil-Vapor Data Conclusions Although there were detections of target compounds in the soil-vapor samples from all SVP probe points collected in this investigation, the only soil-vapor compound detected at, or above, the HHRL was Benzene as follows (see Figure 3, which depicts locations): Proposed Commercial-Use Areas SVP-3 - Benzene at 49 g/m3 – Cancer Risk = 14.1 g/m3; and SVP-5 (inside Historic Building) - Benzene at 26 g/m3 – Cancer Risk = 14.1 g/m3. Proposed Residential-Use Areas SVP-8 - Benzene at 73 g/m3 – Cancer Risk = 3.23 g/m3; SVP-12 - Benzene at 4.0 g/m3 – Cancer Risk = 3.23 g/m3; SVP-13 - Benzene at 12 g/m3 – Cancer Risk = 3.23 g/m3. All other soil-vapor compounds were either non-detect at the respective reporting limits, or were detected at concentrations well below the respective HHRLs for, both, the proposed commercial-use and residential-use areas. 2.4 Soil Sampling For Parcels 1-3, perimeter soil samples were collected at boring locations PS-1 through PS-4 (see Figure 2 for locations). The direct-push method using the GeoProbe 6712 DT was used to collect the soil samples at this location. The boring was advanced to 2.5 feet bgs and a soil sample was retrieved using a split-spoon barrel attached to the rod. The boring was then advanced to 5-feet bgs and a second sample was retrieved (see Appendix B for field notes). Each sample was then preserved in accordance with EPA Guidelines and housed in an ice-cooled chest for transport to the analytical laboratory. Chain -of-custody protocol was in effect as detailed in the Appendix A document, which includes the Sampling and Analysis Plan. Perimeter samples were analyzed for EPA Methods 8260 and 8270b and by SW-846 Method 6010C for Arsenic and Lead. 2.4.1 Summary of PS Soil Analytical Data See Table 2 for summary of PS-1 through PS-4 soil analytical data. See Appendix D for copies of analytical laboratory report. PS-1 2.5-Foot  Arsenic (AS) at 1.6 mg/Kg – ESL Cancer Risk at 2.0 mg/Kg, Non-Cancer Hazard at 3.6 mg/Kg;  Lead (Pb) at 2.0 mg/Kg - ESL Cancer Risk at 2,700.8 mg/Kg, Non-Cancer Hazard at 160 mg/Kg; Project Number 2162RV43 April 5, 2024 E2C Remediation 12  Non-detect for all 8260B compounds;  Non-detect for all 8270C compounds. 5-Foot  Arsenic (AS) at 2.8 mg/Kg – ESL Cancer Risk at 2.0 mg/Kg, Non-Cancer Hazard at 3.6 mg/Kg;  Lead (Pb) at 2.8 mg/Kg - ESL Cancer Risk at 2,700.8 mg/Kg, Non-Cancer Hazard at 160 mg/Kg;  Non-detect for all 8260B compounds; and  Non-detect for all 8270C compounds, except for Phenol at 260 g/Kg (0.260 mg/Kg) – No Cancer Risk ESL with Non-Cancer Hazard at 9.8E+04. PS-2 2.5-Foot  Arsenic (AS) at 2.3 mg/Kg – ESL Cancer Risk at 2.0 mg/Kg, Non-Cancer Hazard at 3.6 mg/Kg;  Lead (Pb) at 2.0 mg/Kg - ESL Cancer Risk at 2,700.8 mg/Kg, Non-Cancer Hazard at 160 mg/Kg;  Non-detect for all 8260B compounds; and  Non-detect for all 8270C compounds. 5-Foot  Arsenic (AS) at 2.6 mg/Kg – ESL Cancer Risk at 2.0 mg/Kg, Non-Cancer Hazard at 3.6 mg/Kg;  Lead (Pb) at 2.1 mg/Kg - ESL Cancer Risk at 2,700.8 mg/Kg, Non-Cancer Hazard at 160 mg/Kg;  Non-detect for all 8260B compounds; and  Non-detect for all 8270C compounds, except for Phenol at 260 g/Kg (0.260 mg/Kg) – No Cancer Risk ESL with Non-Cancer Hazard at 9.8E+04. PS-3 2.5-Foot  Arsenic (AS) at 2.2 mg/Kg – ESL Cancer Risk at 2.0 mg/Kg, Non-Cancer Hazard at 3.6 mg/Kg;  Lead (Pb) at 1.3 mg/Kg - ESL Cancer Risk at 2,700.8 mg/Kg, Non-Cancer Hazard at 160 mg/Kg;  Non-detect for all 8260B compounds; and  Non-detect for all 8270C compounds. 5-Foot  Arsenic (AS) at 1.5 mg/Kg – ESL Cancer Risk at 2.0 mg/Kg, Non-Cancer Hazard at 3.6 mg/Kg;  Lead (Pb) non-detect- ESL Cancer Risk at 2,700.8 mg/Kg, Non-Cancer Hazard at 160 mg/Kg;  Non-detect for all 8260B compounds; and  Non-detect for all 8270C compounds, except for Phenol at 260 g/Kg (0.260 mg/Kg) – No Cancer Risk ESL with Non-Cancer Hazard at 9.8E+04. Project Number 2162RV43 April 5, 2024 E2C Remediation 13 PS-4 2.5-Foot  Arsenic (AS) at 1.8 mg/Kg – ESL Cancer Risk at 2.0 mg/Kg, Non-Cancer Hazard at 3.6 mg/Kg;  Lead (Pb) at 1.2 mg/Kg - ESL Cancer Risk at 2,700.8 mg/Kg, Non-Cancer Hazard at 160 mg/Kg;  Non-detect for all 8260B compounds; and  Non-detect for all 8270C compounds. 5-Foot  Arsenic (AS) at 2.7 mg/Kg – ESL Cancer Risk at 2.0 mg/Kg, Non-Cancer Hazard at 3.6 mg/Kg;  Lead (Pb) at 3.6 mg/Kg - ESL Cancer Risk at 2,700.8 mg/Kg, Non-Cancer Hazard at 160 mg/Kg;  Non-detect for all 8260B compounds; and  Non-detect for all 8270C compounds. 2.4.2 PS Soil Sampling Conclusions Based on the results of the PS sample results, during construction activities along the perimeter of the Site, construction workers will need to be adequately protected against contact with soils containing Arsenic at levels above HHRLs. Protection would be Level C, which would include, but not necessarily be limited to the wearing of Tyvex@ suits, gloves, boots and dust mask. Prior to any construction excavation activities, a Site Construction and Site Safety Plan outlining the construction activity and the Level C protocol would need to be written and reviewed by and adhered to by all workers. If soils are excavated, they would need to be chemically profiled and manifested for disposal at an approved disposal facility. Only clean imported soils could then be emplaced to replace the excavated soils. Note: The arsenic detections in the PS samples could be indicative of the background level for Arsenic in the San Luis Obispo area. In order to evaluate metals background levels in the Site Area, a thorough search of Arsenic background level documents in the area could be examined. If no viable documents were found, then a comprehensive program could be conducted to evaluate Arsenic background levels in the area. This would involve an extensive sampling and analysis regimen such as that outlined in a DTSC, 2007 document (see Appendix F for copy). This would invol ve significant time and expenditure that might not be feasible for the scope of the minimal invasive construction activity that night be needed for this Site. Therefore, due to the potentially limited degree of soil removal for installing utility infrastru cture to the Site Area, it might be simpler to remove, profile and dispose of any small volumes of impacted soils. Additional Note: Due to the construction date of the Historic Building located on the subject property, the presence of lead-based paint, mold, asbestos-related building Project Number 2162RV43 April 5, 2024 E2C Remediation 14 materials and any potential PCB-containing materials cannot be precluded. Therefore, inspection and testing for these materials for these items will be required prior to use of/for this building. 3.0 RECOMMENDATIONS Based on the soil-vapor analytical data and the perimeter soil analytical data, E2C makes the following recommendations: For the Residential Area  Soil vapor concentrations in SVP-8, SVP-12 and SVP-13 exceeded the ESL for Residential Use for Benzene concentrations. Benzene is a known Class A carcinogen and remedial measures will need to be implemented to obtain an amended LUC from the DTSC. There are a couple of remedial measures that will satisfy the DTSC and allow an amended LUC for the planned Residential Area. These include placing a vapor migration barrier under approximately 75% of the proposed Residential Area. The specific location and materials of construction of the vapor migration barrier will need to be discussed with the DTSC and your selected vapor migration contractor. Based on our experience at similar sites, the cost of the vapor barrier installed may be as high as $15 per square foot. The exact square footage to be covered will be based on discussions with the DTSC. The second option would be to install a set of perforated horizontal pipes at a depth of 5 feet below ground surface . These pipes would be connected at the surface to a high flow low vacuum blower that will remove the vapors from the subsurface and treat the vapors through activated granular carbon. This process may take as little as one month and as long as three months. At the end of the active removal period, the soil vapor would be tested again to determine if the removal process was successful. We would recommend discussing the approaches with the DTSC, determine what they will accept, compare the costs of each and select the least expensive option. For the Historic Building Area  Soil vapor concentrations in SVP-3 and SVP-5 exceeded the ESL for Commercial Use for Benzene concentrations. Benzene is a known Class A carcinogen and remedial measures will be needed. The two (2) areas where ESLs were exceeded included inside the Historic Building and north of the Historic Building where a planned kitchen/food preparation area is proposed. As both of these areas will need a concrete slab to be placed to allow for the intended uses, it may be sufficient to propose these concrete slabs for vapor mitigation to the DTSC. In all probability, the DTSC will likely accept this proposal as the LUC currently in place for the Historic Building Area does not preclude Commercial Use. In a worst case scenario, the DTSC may require a vapor migration barrier beneath the concrete slabs. We would recommend that we only approach the DTSC with a proposal to install concrete slabs. For the Areas along the Perimeter of the Site  Soil samples were collected at four (4) locations around the perimeter of the site. Soils at every location (PS-1, PS-2, PS-3 and PS-4) all contained concentrations of Arsenic above the ESL for Construction Workers exposed to Project Number 2162RV43 April 5, 2024 E2C Remediation 15 the soil during construction operations. The exceedances were very minor and the concentrations in all locations were remarkably similar. It is therefore likely that these concentrations probably represent local background concentrations for the San Luis Obispo Area. Unfortunately, in order to make this argument, one must conduct an extensive and exhaustive study to determine the area- wide background concentration. Rather than conduct this type of evaluation, for what would be a very limited exposure scenario, we recommend that the construction workers be informed of these concentrations, be given proper equipment, training to handle the soil appropriately and that any soil, needing to be removed, be handled appropriately and profiled into a disposal facility permitted to handle this type of material. Project Number 2162RV43 April 5, 2024 E2C Remediation 16 4.0 LIMITATIONS AND CERTIFICATION This Report of Findings has been prepared under the professional supervision of the registered professional whose seal and signature appear he rein. Any conclusions in this ROF are based solely on the Scope of Services outlined and the sources of information referenced in this ROF. Any additional information that becomes available concerning the Site should be submitted to E2C so that our conclusions may be reviewed and modified, if necessary. This ROF was prepared for the sole use of the Client, outside entities as deemed necessary by the Client and Regulatory Agencies, both Local and State. I, Philip Goalwin, P.G. #4779, certify under penalty of law that this document and all attachments were prepared by me, or under my direction or supervision, in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of a fine and imprisonment for knowing violations. Prepared By: William A. Lawson William A. Lawson, BA. MS Consulting Geologist And Reviewed By: Philip Goalwin, PG #4779 Principal Geologist Project Number 2162RV43 April 5, 2024 E2C Remediation Figures FIGURES Figure 1 Site Location Map Figure 2 Site Plan – 265 Pacific Street Figure 3 Site Benzene and Arsenic Plot N OT TO SC ALE F I G U R E 1SITE LOCAT IO N M A P233 Technology Way, #7, Rocklin, CA 95765 Phone: (916) 782-8700 Fax: (916) 782-8750 C O V E L O P S AN L UI S O B I SPO, C A L I F ORN I A Covelop Location Map Write a description for your map. Legend 265 Pacific St California Polytechnic State University San Luis Obispo County Regional Airport 3 mi N ➤➤N 233 Technology Way, #7, Rocklin, CA 95765 Phone: (916) 782-8700 Fax: (916) 782-8750 F I G U R E 2SITE I N V E S T I G AT I O N P L A N Modified from: 14 15 12913 4 STAIR 2 LOBBY/ AMENITY (GRADE LEVEL) RETAIL (CMU BLDG) EXISTING LITTLE ALAMO KITCHEN REST ROOM RAISED COURTYARD ALLEY WALKER STREETPISMO STREET PACIFIC STREET ARCHER STREETENTRY COURT (GRADE LEVEL) 102 (1-BED) 107 (1-BED) 101 (2-BED) STAIR 1 ELEV TRASH 103 (1-BED) 104 (1-BED) 105 (1-BED) 106 (1-BED) 108 (1-BED) 110 (1-BED) 109 (1-BED) Date JANUARY 15, 2024 Sheet Scale A2.2 1" = 40'-0" NORTH 0 20 40SITE P L A N / F I R S T F L O O R P L A N - O P T I O N 2 1" = 40'-0" U NI T M I X S TU D I O (470 SF):6 UN ITS 12% 1-B E DROO M (595 S F):36 UNIT S 74% 2-BED R OO M (910 SF):7 UNITS 14% TOTA L UNITS PRO P OSED:49 U NI T S PA R K I N G PA RKI NG R E QUIRED (6) S TU D I O UNITS @ 0.75 S PACE/UN IT:4.50 S PACES (36) 1-B E DRO OM U NI T S @ 0.75 SPA CES/UNIT:27.00 SPAC E S (7) 3-B E D ROO M U N ITS @ 1.50 SPA C E S/UNIT:10.50 SPA C E S GUESTS (49 UNI T S @ 1 SPAC E/5 UN ITS):9.80 S PACE S B A R/RESTAUR A NT (1,900 SF @ 1 SPACE/100 SF):19 S PACES CMU BUIL D I N G (4,000 SF@ 1 SPA CE/300 SF):13 S PACES TOTA L PA R KI N G REQ UI RED 84 S PAC E S PAR K I N G PRO V ID E D 67 SPA CES Covelop Parcels 1-3 San Luis Obispo, California SV P-15 S V P-3 PS-2 S VP-5 S V P-6 S V P-7 S V P-11 S V P-9SVP-8 S V P-10 SVP-12 S VP-13 S V P-14 P S-3 P S-4 P S-1 233 Technology Way, #7, Rocklin, CA 95765 Phone: (916) 782-8700 Fax: (916) 782-8750 F I G U R E 3SITE B E N Z E N E A N D A R S E N I C P L O T Parcels 1-3 Write a description for your map. Legend 100 ft N ➤➤N Image © 2024 Airbus Image © 2024 Airbus Image © 2024 Airbus Covelop Parcels 1-3 San Luis Obispo, California PS-2 SV P-5 SV P-6SVP-7 S V P-11 SVP-9 SV P-10 SV P-12 S V P-13 S V P-14 P S-3 P S-4 P S-1 S VP-15SVP-8 S V P-5 Soil-Vapor: Benzene = 23 ug/m3 S V P-3 Soil-Vapor: Benzene = 49 ug/m3 H H R L = 14.1 ug/Kg S VP-3 S V P-6 Soil-Vapor: Benzene = N D S V P-7 Soil-Vapor: Benzene = N D S V P-8 Soil-Vapor: Benzene = 73 ug/m3 S V P-12 Soil-Vapor: Benzene = 4 ug/m3 S V P-9 Soil-Vapor: Benzene = N D S V P-13 Soil-Vapor: Benzene = 12 ug/m3 Commercial H H R L Benzene H H R L = 14.1 ug/Kg Residential H H R L H H R L = 3.23 ug/Kg S V P-10 and S V P-11 Not Sampled Commercial H H R L Arsenic (A S) H H R L = 2.0 mg/Kg P S-1 at 2.5’ - A S = 1.6 mg/Kg at 5’ - A S = 2.8 mg/Kg P S-2 at 2.5’ - A S = 2.3 mg/Kg at 5’ - A S = 2.6 mg/Kg P S-4 at 2.5’ - A S = 1.8 at 5’ - A S = 2.7 mg/Kg P S-3 at 2.5’ - A S = 2.3 at 5’ - A S = 1.5 mg/Kg Project Number 2162RV43 April 5, 2024 E2C Remediation Tables TABLES Table 1 Summary of Soil Vapor Data Compared to ESLs inside Commercial Building, 265 Pacific Street, San Luis Obispo, California Table 2 Summary of Summary of Soil Sample Analytical Data vs ESLs for Perimeter, 265 Pacific Street, San Luis Obispo, California Project Number 2162RV43 April 5, 2024 Sample ID:SVP-3 Lab ID:504090-004 Matrix:Air Proposed Commercial-Use Area Analyte Result Units RL Cancer Risk Non- cancer Hazard 1,1-Difluoroethane ND ppbv 1.5 1,1-Difluoroethane ND ug/m3 4.1 Freon 12 0.42 ppbv 0.3 Freon 12 2.1 ug/m3 1.5 not listed Freon 114 ND ppbv 0.3 Freon 114 ND ug/m3 2.1 Chloromethane 1.4 ppbv 0.3 Chloromethane 3.0 ug/m3 0.62 --13,140 Vinyl Chloride ND ppbv 0.3 Vinyl Chloride ND ug/m3 0.77 Bromomethane ND ppbv 0.3 Bromomethane ND ug/m3 1.2 Chloroethane ND ppbv 0.3 Chloroethane ND ug/m3 0.79 Trichlorofluoromethane ND ppbv 0.3 Trichlorofluoromethane ND ug/m3 1.7 1,1-Dichloroethene ND ppbv 0.3 1,1-Dichloroethene ND ug/m3 1.2 Freon 113 ND ppbv 0.3 Freon 113 ND ug/m3 2.3 Acetone 35 ppbv 1.5 Acetone 83 ug/m3 3.6 --4,526,000 Carbon Disulfide 5.0 ppbv 0.3 Carbon Disulfide 15 ug/m3 0.93 not listed Isopropanol (IPA)3.6 ppbv 1.5 Isopropanol (IPA)8.9 ug/m3 3.7 not listed Methylene Chloride 0.37 ppbv 0.3 Methylene Chloride 1.3 ug/m3 1 408.8 58,400 trans-1,2-Dichloroethene ND ppbv 0.3 trans-1,2-Dichloroethene ND ug/m3 1.2 MTBE ND ppbv 0.3 MTBE ND ug/m3 1.1 n-Hexane 16 ppbv 0.3 n-Hexane 56 ug/m3 1.1 not listed 1,1-Dichloroethane ND ppbv 0.3 1,1-Dichloroethane ND ug/m3 1.2 Vinyl Acetate ND ppbv 1.5 Table 1 - Summary of Soil Vapor Data Compared to ESLs Prep Method: METHOD Commercial - HHRL Sub-slab soil gas Vapor Intrusion Method: EPA TO-15 ug/M3 1390 Walker Street, 280-290 Pismo Street and 251 Pacific Street San Luis Obispo, California E2C Remediation Table 1-1 Project Number 2162RV43 April 5, 2024 Vinyl Acetate ND ug/m3 5.3 cis-1,2-Dichloroethene ND ppbv 0.3 cis-1,2-Dichloroethene ND ug/m3 1.2 2-Butanone 8.3 ppbv 1.5 2-Butanone 24 ug/m3 4.4 not listed Chloroform ND ppbv 0.3 Chloroform ND ug/m3 1.5 1,1,1-Trichloroethane ND ppbv 0.3 1,1,1-Trichloroethane ND ug/m3 1.6 Carbon Tetrachloride ND ppbv 0.3 Carbon Tetrachloride ND ug/m3 1.9 Benzene 16 ppbv 0.3 Benzene 49 ug/m3 0.96 14.1 438.0 1,2-Dichloroethane ND ppbv 0.3 1,2-Dichloroethane ND ug/m3 1.2 Trichloroethene ND ppbv 0.3 Trichloroethene ND ug/m3 1.6 1,2-Dichloropropane ND ppbv 0.3 1,2-Dichloropropane ND ug/m3 1.4 Bromodichloromethane ND ppbv 0.3 Bromodichloromethane ND ug/m3 2 cis-1,3-Dichloropropene ND ppbv 0.3 cis-1,3-Dichloropropene ND ug/m3 1.4 4-Methyl-2-Pentanone 0.54 ppbv 0.3 4-Methyl-2-Pentanone 2.2 ug/m3 1.2 not listed Toluene 7.0 ppbv 0.3 Toluene 26 ug/m3 1.1 --43,800.0 trans-1,3-Dichloropropene ND ppbv 0.3 trans-1,3-Dichloropropene ND ug/m3 1.4 1,1,2-Trichloroethane ND ppbv 0.3 1,1,2-Trichloroethane ND ug/m3 1.6 Tetrachloroethene 1.1 ppbv 0.3 Tetrachloroethene 7.7 ug/m3 2 67.0 5,840 2-Hexanone ND ppbv 0.75 2-Hexanone ND ug/m3 3.1 Dibromochloromethane ND ppbv 0.3 Dibromochloromethane ND ug/m3 2.6 1,2-Dibromoethane ND ppbv 0.3 1,2-Dibromoethane ND ug/m3 2.3 Chlorobenzene ND ppbv 0.3 Chlorobenzene ND ug/m3 1.4 Ethylbenzene 1.5 ppbv 0.3 Ethylbenzene 6.5 ug/m3 1.3 163.5 146,000 m,p-Xylenes 2.3 ppbv 0.6 m,p-Xylenes 9.8 ug/m3 2.6 see Total o-Xylene 0.87 ppbv 0.3 o-Xylene 3.8 ug/m3 1.3 see Total E2C Remediation Table 1-2 Project Number 2162RV43 April 5, 2024 Styrene 0.59 ppbv 0.3 Styrene 2.6 ug/m3 1.3 --131,400 Bromoform ND ppbv 0.3 Bromoform ND ug/m3 3.1 1,1,2,2-Tetrachloroethane ND ppbv 0.3 1,1,2,2-Tetrachloroethane ND ug/m3 2.1 1,1,1,2-Tetrachloroethane ND ppbv 0.3 1,1,1,2-Tetrachloroethane ND ug/m3 2.1 4-Ethyltoluene ND ppbv 0.3 4-Ethyltoluene ND ug/m3 1.5 1,3,5-Trimethylbenzene 0.63 ppbv 0.3 1,3,5-Trimethylbenzene 3.1 ug/m3 1.5 not listed 1,2,4-Trimethylbenzene 0.76 ppbv 0.3 1,2,4-Trimethylbenzene 3.8 ug/m3 1.5 not listed 1,3-Dichlorobenzene ND ppbv 0.3 1,3-Dichlorobenzene ND ug/m3 1.8 1,4-Dichlorobenzene ND ppbv 0.3 1,4-Dichlorobenzene ND ug/m3 1.8 Benzyl chloride ND ppbv 0.3 Benzyl chloride ND ug/m3 1.6 1,2-Dichlorobenzene ND ppbv 0.3 1,2-Dichlorobenzene ND ug/m3 1.8 1,2,4-Trichlorobenzene ND ppbv 0.3 1,2,4-Trichlorobenzene ND ug/m3 2.2 Hexachlorobutadiene ND ppbv 0.3 Hexachlorobutadiene ND ug/m3 3.2 Xylene (total)3.1 ppbv 0.3 Xylene (total)14 ug/m3 1.3 --14,600 Surrogates Limits Bromofluorobenzene 86%%REC 60-140 TPH Gasoline 0.84 ppmv 0.038 TPH Gasoline 3,400 ug/m3 150 --83,428.6 Method: EPA TO-3M Note: There was no SVP-4 boring proposed; see Site Plan E2C Remediation Table 1-3 Project Number 2162RV43 April 5, 2024 Sample ID:SVP-5 Lab ID:504090-002 Matrix:Air Inside Historic Building - Proposed Commercial-Use Area Analyte Result Units RL Cancer Risk Non- cancer Hazard 1,1-Difluoroethane ND ppbv 1.5 1,1-Difluoroethane ND ug/m3 4.1 Freon 12 0.38 ppbv 0.3 Freon 12 1.4 ug/m3 1.5 not listed Freon 114 ND ppbv 0.3 Freon 114 ND ug/m3 2.1 Chloromethane 0.63 ppbv 0.3 Chloromethane 1.3 ug/m3 0.62 --13,140 Vinyl Chloride ND ppbv 0.3 Vinyl Chloride ND ug/m3 0.77 Bromomethane ND ppbv 0.3 Bromomethane ND ug/m3 1.2 Chloroethane ND ppbv 0.3 Chloroethane ND ug/m3 0.79 Trichlorofluoromethane ND ppbv 0.3 Trichlorofluoromethane ND ug/m3 1.7 1,1-Dichloroethene ND ppbv 0.3 1,1-Dichloroethene ND ug/m3 1.2 Freon 113 ND ppbv 0.3 Freon 113 ND ug/m3 2.3 Acetone 26 ppbv 1.5 Acetone 63 ug/m3 3.6 --4,526,000 Carbon Disulfide 2.2 ppbv 0.3 Carbon Disulfide 6.8 ug/m3 0.93 not listed Isopropanol (IPA)3.0 ppbv 1.5 Isopropanol (IPA)7.4 ug/m3 3.7 not listed Methylene Chloride 0.3 ppbv 0.3 Methylene Chloride 1.0 ug/m3 1 408.8 58,400 trans-1,2-Dichloroethene ND ppbv 0.3 trans-1,2-Dichloroethene ND ug/m3 1.2 MTBE ND ppbv 0.3 MTBE ND ug/m3 1.1 n-Hexane 3.6 ppbv 0.3 n-Hexane 13 ug/m3 1.1 not listed 1,1-Dichloroethane ND ppbv 0.3 1,1-Dichloroethane ND ug/m3 1.2 Vinyl Acetate ND ppbv 1.5 Vinyl Acetate ND ug/m3 5.3 cis-1,2-Dichloroethene ND ppbv 0.3 cis-1,2-Dichloroethene ND ug/m3 1.2 Commercial - HHRL Sub-slab soil gas Vapor Intrusion Method: EPA TO-15 ug/M3 Prep Method: METHOD E2C Remediation Table 1-4 Project Number 2162RV43 April 5, 2024 2-Butanone 5.1 ppbv 1.5 2-Butanone 15 ug/m3 4.4 not listed Chloroform ND ppbv 0.3 Chloroform ND ug/m3 1.5 1,1,1-Trichloroethane ND ppbv 0.3 1,1,1-Trichloroethane ND ug/m3 1.6 Carbon Tetrachloride ND ppbv 0.3 Carbon Tetrachloride ND ug/m3 1.9 Benzene 8.0 ppbv 0.3 Benzene 26 ug/m3 0.96 14.1 438.0 1,2-Dichloroethane ND ppbv 0.3 1,2-Dichloroethane ND ug/m3 1.2 Trichloroethene ND ppbv 0.3 Trichloroethene ND ug/m3 1.6 1,2-Dichloropropane ND ppbv 0.3 1,2-Dichloropropane ND ug/m3 1.4 Bromodichloromethane ND ppbv 0.3 Bromodichloromethane ND ug/m3 2 cis-1,3-Dichloropropene ND ppbv 0.3 cis-1,3-Dichloropropene ND ug/m3 1.4 4-Methyl-2-Pentanone 0.41 ppbv 0.3 4-Methyl-2-Pentanone 1.7 ug/m3 1.2 not listed Toluene 2.0 ppbv 0.3 Toluene 7.4 ug/m3 1.1 --43,800.0 trans-1,3-Dichloropropene ND ppbv 0.3 trans-1,3-Dichloropropene ND ug/m3 1.4 1,1,2-Trichloroethane ND ppbv 0.3 1,1,2-Trichloroethane ND ug/m3 1.6 Tetrachloroethene 2.0 ppbv 0.3 Tetrachloroethene 13 ug/m3 2 67.0 5,840 2-Hexanone ND ppbv 0.75 2-Hexanone ND ug/m3 3.1 Dibromochloromethane ND ppbv 0.3 Dibromochloromethane ND ug/m3 2.6 1,2-Dibromoethane ND ppbv 0.3 1,2-Dibromoethane ND ug/m3 2.3 Chlorobenzene ND ppbv 0.3 Chlorobenzene ND ug/m3 1.4 Ethylbenzene ND ppbv 0.3 Ethylbenzene ND ug/m3 1.3 m,p-Xylenes ND ppbv 0.6 m,p-Xylenes ND ug/m3 2.6 o-Xylene ND ppbv 0.3 o-Xylene ND ug/m3 1.3 Styrene 0.54 ppbv 0.3 Styrene 2.3 ug/m3 1.3 --131,400 Bromoform ND ppbv 0.3 E2C Remediation Table 1-5 Project Number 2162RV43 April 5, 2024 Bromoform ND ug/m3 3.1 1,1,2,2-Tetrachloroethane ND ppbv 0.3 1,1,2,2-Tetrachloroethane ND ug/m3 2.1 1,1,1,2-Tetrachloroethane ND ppbv 0.3 1,1,1,2-Tetrachloroethane ND ug/m3 2.1 4-Ethyltoluene ND ppbv 0.3 4-Ethyltoluene ND ug/m3 1.5 1,3,5-Trimethylbenzene ND ppbv 0.3 1,3,5-Trimethylbenzene ND ug/m3 1.5 1,2,4-Trimethylbenzene ND ppbv 0.3 1,2,4-Trimethylbenzene ND ug/m3 1.5 1,3-Dichlorobenzene ND ppbv 0.3 1,3-Dichlorobenzene ND ug/m3 1.8 1,4-Dichlorobenzene ND ppbv 0.3 1,4-Dichlorobenzene ND ug/m3 1.8 Benzyl chloride ND ppbv 0.3 Benzyl chloride ND ug/m3 1.6 1,2-Dichlorobenzene ND ppbv 0.3 1,2-Dichlorobenzene ND ug/m3 1.8 1,2,4-Trichlorobenzene ND ppbv 0.3 1,2,4-Trichlorobenzene ND ug/m3 2.2 Hexachlorobutadiene ND ppbv 0.3 Hexachlorobutadiene ND ug/m3 3.2 Xylene (total)ND ppbv 0.3 Xylene (total)ND ug/m3 1.3 Surrogates Limits Bromofluorobenzene 82%%REC 60-140 TPH Gasoline 0.24 ppmv 0.038 TPH Gasoline 980 ug/m3 150 --83,428.6 Method: EPA TO-3M E2C Remediation Table 1-6 Project Number 2162RV43 April 5, 2024 Sample ID:SVP-6 Lab ID:504090-003 Matrix:Air Proposed Commercial-Use Area Analyte Result Units RL Cancer Risk Non- cancer Hazard 1,1-Difluoroethane ND ppbv 1.5 1,1-Difluoroethane ND ug/m3 4.1 Freon 12 0.38 ppbv 0.3 Freon 12 1.7 ug/m3 1.5 not listed Freon 114 ND ppbv 0.3 Freon 114 ND ug/m3 2.1 Chloromethane ND ppbv 0.3 Chloromethane ND ug/m3 0.62 Vinyl Chloride ND ppbv 0.3 Vinyl Chloride ND ug/m3 0.77 Bromomethane ND ppbv 0.3 Bromomethane ND ug/m3 1.2 Chloroethane ND ppbv 0.3 Chloroethane ND ug/m3 0.79 Trichlorofluoromethane ND ppbv 0.3 Trichlorofluoromethane ND ug/m3 1.7 1,1-Dichloroethene ND ppbv 0.3 1,1-Dichloroethene ND ug/m3 1.2 Freon 113 ND ppbv 0.3 Freon 113 ND ug/m3 2.3 Acetone 12 ppbv 1.5 Acetone 30 ug/m3 3.6 --4,526,000 Carbon Disulfide 1.9 ppbv 0.3 Carbon Disulfide 6.0 ug/m3 0.93 not listed Isopropanol (IPA)3.1 ppbv 1.5 Isopropanol (IPA)7.6 ug/m3 3.7 not listed Methylene Chloride ND ppbv 0.3 Methylene Chloride ND ug/m3 1 trans-1,2-Dichloroethene ND ppbv 0.3 trans-1,2-Dichloroethene ND ug/m3 1.2 MTBE ND ppbv 0.3 MTBE ND ug/m3 1.1 n-Hexane 1.4 ppbv 0.3 n-Hexane 5.1 ug/m3 1.1 not listed 1,1-Dichloroethane ND ppbv 0.3 1,1-Dichloroethane ND ug/m3 1.2 Vinyl Acetate ND ppbv 1.5 Vinyl Acetate ND ug/m3 5.3 cis-1,2-Dichloroethene ND ppbv 0.3 cis-1,2-Dichloroethene ND ug/m3 1.2 Commercial - HHRL Sub-slab soil gas Vapor Intrusion Method: EPA TO-15 ug/M3 Prep Method: METHOD E2C Remediation Table 1-7 Project Number 2162RV43 April 5, 2024 2-Butanone 2.8 ppbv 1.5 2-Butanone 8.2 ug/m3 4.4 not listed Chloroform ND ppbv 0.3 Chloroform ND ug/m3 1.5 1,1,1-Trichloroethane ND ppbv 0.3 1,1,1-Trichloroethane ND ug/m3 1.6 Carbon Tetrachloride ND ppbv 0.3 Carbon Tetrachloride ND ug/m3 1.9 Benzene 0.77 ppbv 0.3 Benzene 2.6 ug/m3 0.96 14.1 438.0 1,2-Dichloroethane ND ppbv 0.3 1,2-Dichloroethane ND ug/m3 1.2 Trichloroethene ND ppbv 0.3 Trichloroethene ND ug/m3 1.6 1,2-Dichloropropane ND ppbv 0.3 1,2-Dichloropropane ND ug/m3 1.4 Bromodichloromethane ND ppbv 0.3 Bromodichloromethane ND ug/m3 2 cis-1,3-Dichloropropene ND ppbv 0.3 cis-1,3-Dichloropropene ND ug/m3 1.4 4-Methyl-2-Pentanone ND ppbv 0.3 4-Methyl-2-Pentanone ND ug/m3 1.2 Toluene 0.38 ppbv 0.3 Toluene 1.4 ug/m3 1.1 --43,800 trans-1,3-Dichloropropene ND ppbv 0.3 trans-1,3-Dichloropropene ND ug/m3 1.4 1,1,2-Trichloroethane ND ppbv 0.3 1,1,2-Trichloroethane ND ug/m3 1.6 Tetrachloroethene nd<0.30 ppbv 0.3 Tetrachloroethene nd<2.0 ug/m3 2 67.0 5,840 2-Hexanone ND ppbv 0.75 2-Hexanone ND ug/m3 3.1 Dibromochloromethane ND ppbv 0.3 Dibromochloromethane ND ug/m3 2.6 1,2-Dibromoethane ND ppbv 0.3 1,2-Dibromoethane ND ug/m3 2.3 Chlorobenzene ND ppbv 0.3 Chlorobenzene ND ug/m3 1.4 Ethylbenzene ND ppbv 0.3 Ethylbenzene ND ug/m3 1.3 163.5 146,000 m,p-Xylenes ND ppbv 0.6 m,p-Xylenes ND ug/m3 2.6 o-Xylene ND ppbv 0.3 o-Xylene ND ug/m3 1.3 Styrene ND ppbv 0.3 Styrene ND ug/m3 1.3 Bromoform ND ppbv 0.3 E2C Remediation Table 1-8 Project Number 2162RV43 April 5, 2024 Bromoform ND ug/m3 3.1 1,1,2,2-Tetrachloroethane ND ppbv 0.3 1,1,2,2-Tetrachloroethane ND ug/m3 2.1 1,1,1,2-Tetrachloroethane ND ppbv 0.3 1,1,1,2-Tetrachloroethane ND ug/m3 2.1 4-Ethyltoluene ND ppbv 0.3 4-Ethyltoluene ND ug/m3 1.5 1,3,5-Trimethylbenzene ND ppbv 0.3 1,3,5-Trimethylbenzene ND ug/m3 1.5 1,2,4-Trimethylbenzene ND ppbv 0.3 1,2,4-Trimethylbenzene ND ug/m3 1.5 1,3-Dichlorobenzene ND ppbv 0.3 1,3-Dichlorobenzene ND ug/m3 1.8 1,4-Dichlorobenzene ND ppbv 0.3 1,4-Dichlorobenzene ND ug/m3 1.8 Benzyl chloride ND ppbv 0.3 Benzyl chloride ND ug/m3 1.6 1,2-Dichlorobenzene ND ppbv 0.3 1,2-Dichlorobenzene ND ug/m3 1.8 1,2,4-Trichlorobenzene ND ppbv 0.3 1,2,4-Trichlorobenzene ND ug/m3 2.2 Hexachlorobutadiene ND ppbv 0.3 Hexachlorobutadiene ND ug/m3 3.2 Xylene (total)ND ppbv 0.3 Xylene (total)ND ug/m3 1.3 Surrogates Limits Bromofluorobenzene 84%%REC 60-140 TPH Gasoline 0.21 ppmv 0.038 TPH Gasoline 850 ug/m3 150 --83,428.6 Method: EPA TO-3M E2C Remediation Table 1-9 Project Number 2162RV43 April 5, 2024 Sample ID:SVP-15 Lab ID:504090-001 Matrix:Air Proposed Commercial-Use Area Analyte Result Units RL Cancer Risk Non- cancer Hazard 1,1-Difluoroethane ND ppbv 1.5 1,1-Difluoroethane ND ug/m3 4.1 Freon 12 0.37 ppbv 0.3 Freon 12 1.8 ug/m3 1.5 not listed Freon 114 ND ppbv 0.3 Freon 114 ND ug/m3 2.1 Chloromethane 1.8 ppbv 0.3 Chloromethane 1.7 ug/m3 0.62 --13,140 Vinyl Chloride ND ppbv 0.3 Vinyl Chloride ND ug/m3 0.77 Bromomethane ND ppbv 0.3 Bromomethane ND ug/m3 1.2 Chloroethane ND ppbv 0.3 Chloroethane ND ug/m3 0.79 Trichlorofluoromethane ND ppbv 0.3 Trichlorofluoromethane ND ug/m3 1.7 1,1-Dichloroethene ND ppbv 0.3 1,1-Dichloroethene ND ug/m3 1.2 Freon 113 ND ppbv 0.3 Freon 113 ND ug/m3 2.3 Acetone 21 ppbv 1.5 Acetone 50 ug/m3 3.6 --4,526,000 Carbon Disulfide 0.26 ppbv 0.3 Carbon Disulfide 0.79 ug/m3 0.93 not listed Isopropanol (IPA)3.4 ppbv 1.5 Isopropanol (IPA)8.4 ug/m3 3.7 not listed Methylene Chloride 0.53 ppbv 0.3 Methylene Chloride 1.8 ug/m3 1 408.8 58,400 trans-1,2-Dichloroethene ND ppbv 0.3 trans-1,2-Dichloroethene ND ug/m3 1.2 MTBE ND ppbv 0.3 MTBE ND ug/m3 1.1 n-Hexane 0.87 ppbv 0.3 n-Hexane 3.1 ug/m3 1.1 not listed 1,1-Dichloroethane ND ppbv 0.3 1,1-Dichloroethane ND ug/m3 1.2 Vinyl Acetate ND ppbv 1.5 Vinyl Acetate ND ug/m3 5.3 cis-1,2-Dichloroethene ND ppbv 0.3 cis-1,2-Dichloroethene ND ug/m3 1.2 Method: EPA TO-15 ug/M3 Prep Method: METHOD Commercial - HHRL Sub-slab soil gas Vapor Intrusion E2C Remediation Table 1-10 Project Number 2162RV43 April 5, 2024 2-Butanone 2.9 ppbv 1.5 2-Butanone 8.6 ug/m3 4.4 not listed Chloroform ND ppbv 0.3 Chloroform ND ug/m3 1.5 1,1,1-Trichloroethane ND ppbv 0.3 1,1,1-Trichloroethane ND ug/m3 1.6 Carbon Tetrachloride ND ppbv 0.3 Carbon Tetrachloride ND ug/m3 1.9 Benzene 1.5 ppbv 0.3 Benzene 4.9 ug/m3 0.96 14.1 438.0 1,2-Dichloroethane ND ppbv 0.3 1,2-Dichloroethane ND ug/m3 1.2 Trichloroethene ND ppbv 0.3 Trichloroethene ND ug/m3 1.6 1,2-Dichloropropane ND ppbv 0.3 1,2-Dichloropropane ND ug/m3 1.4 Bromodichloromethane ND ppbv 0.3 Bromodichloromethane ND ug/m3 2 cis-1,3-Dichloropropene ND ppbv 0.3 cis-1,3-Dichloropropene ND ug/m3 1.4 4-Methyl-2-Pentanone 0.26 ppbv 0.3 4-Methyl-2-Pentanone 1.1 ug/m3 1.2 not listed Toluene 0.82 ppbv 0.3 Toluene 3.1 ug/m3 1.1 --43,800.0 trans-1,3-Dichloropropene ND ppbv 0.3 trans-1,3-Dichloropropene ND ug/m3 1.4 1,1,2-Trichloroethane ND ppbv 0.3 1,1,2-Trichloroethane ND ug/m3 1.6 Tetrachloroethene nd<0.24 ppbv 0.3 Tetrachloroethene nd<1.6 ug/m3 2 67.0 5,840 2-Hexanone ND ppbv 0.75 2-Hexanone ND ug/m3 3.1 Dibromochloromethane ND ppbv 0.3 Dibromochloromethane ND ug/m3 2.6 1,2-Dibromoethane ND ppbv 0.3 1,2-Dibromoethane ND ug/m3 2.3 Chlorobenzene ND ppbv 0.3 Chlorobenzene ND ug/m3 1.4 Ethylbenzene ND ppbv 0.3 Ethylbenzene ND ug/m3 1.3 m,p-Xylenes ND ppbv 0.6 m,p-Xylenes ND ug/m3 2.6 o-Xylene ND ppbv 0.3 o-Xylene ND ug/m3 1.3 Styrene ND ppbv 0.3 Styrene ND ug/m3 1.3 Bromoform ND ppbv 0.3 E2C Remediation Table 1-11 Project Number 2162RV43 April 5, 2024 Bromoform ND ug/m3 3.1 1,1,2,2-Tetrachloroethane ND ppbv 0.3 1,1,2,2-Tetrachloroethane ND ug/m3 2.1 1,1,1,2-Tetrachloroethane ND ppbv 0.3 1,1,1,2-Tetrachloroethane ND ug/m3 2.1 4-Ethyltoluene ND ppbv 0.3 4-Ethyltoluene ND ug/m3 1.5 1,3,5-Trimethylbenzene ND ppbv 0.3 1,3,5-Trimethylbenzene ND ug/m3 1.5 1,2,4-Trimethylbenzene ND ppbv 0.3 1,2,4-Trimethylbenzene ND ug/m3 1.5 1,3-Dichlorobenzene ND ppbv 0.3 1,3-Dichlorobenzene ND ug/m3 1.8 1,4-Dichlorobenzene ND ppbv 0.3 1,4-Dichlorobenzene ND ug/m3 1.8 Benzyl chloride ND ppbv 0.3 Benzyl chloride ND ug/m3 1.6 1,2-Dichlorobenzene ND ppbv 0.3 1,2-Dichlorobenzene ND ug/m3 1.8 1,2,4-Trichlorobenzene ND ppbv 0.3 1,2,4-Trichlorobenzene ND ug/m3 2.2 Hexachlorobutadiene ND ppbv 0.3 Hexachlorobutadiene ND ug/m3 3.2 Xylene (total)ND ppbv 0.3 Xylene (total)ND ug/m3 1.3 Surrogates Limits Bromofluorobenzene 87%%REC 60-140 TPH Gasoline na ppmv 0.038 TPH Gasoline na ug/m3 150 Method: EPA TO-3M E2C Remediation Table 1-12 Project Number 2162RV43 April 5, 2024 Sample ID:SVP-7 Lab ID:504090-009 Matrix:Air Proposed Residential-Use Area Analyte Result Units RL Cancer Risk Non- cancer Hazard 1,1-Difluoroethane ND ppbv 1.5 1,1-Difluoroethane ND ug/m3 4.1 Freon 12 0.34 ppbv 0.3 Freon 12 1.7 ug/m3 1.5 not listed Freon 114 ND ppbv 0.3 Freon 114 ND ug/m3 2.1 Chloromethane ND ppbv 0.3 Chloromethane ND ug/m3 0.62 Vinyl Chloride ND ppbv 0.3 Vinyl Chloride ND ug/m3 0.77 Bromomethane ND ppbv 0.3 Bromomethane ND ug/m3 1.2 Chloroethane ND ppbv 0.3 Chloroethane ND ug/m3 0.79 Trichlorofluoromethane ND ppbv 0.3 Trichlorofluoromethane ND ug/m3 1.7 1,1-Dichloroethene ND ppbv 0.3 1,1-Dichloroethene ND ug/m3 1.2 Freon 113 ND ppbv 0.3 Freon 113 ND ug/m3 2.3 Acetone 12 ppbv 1.5 Acetone 28 ug/m3 3.6 --1,077,619 Carbon Disulfide 0.39 ppbv 0.3 Carbon Disulfide 1.2 ug/m3 0.93 not listed Isopropanol (IPA)1.4 ppbv 1.5 Isopropanol (IPA)3.4 ug/m3 3.7 not listed Methylene Chloride ND ppbv 0.3 Methylene Chloride ND ug/m3 1 trans-1,2-Dichloroethene ND ppbv 0.3 trans-1,2-Dichloroethene ND ug/m3 1.2 MTBE ND ppbv 0.3 MTBE ND ug/m3 1.1 n-Hexane ND ppbv 0.3 n-Hexane ND ug/m3 1.1 1,1-Dichloroethane ND ppbv 0.3 1,1-Dichloroethane ND ug/m3 1.2 Vinyl Acetate ND ppbv 1.5 Vinyl Acetate ND ug/m3 5.3 cis-1,2-Dichloroethene ND ppbv 0.3 cis-1,2-Dichloroethene ND ug/m3 1.2 Residential - HHRL Sub-slab soil gas Vapor Intrusion Method: EPA TO-15 ug/M3 Prep Method: METHOD E2C Remediation Table 1-13 Project Number 2162RV43 April 5, 2024 2-Butanone 4.5 ppbv 1.5 2-Butanone 14 ug/m3 4.4 not listed Chloroform 0.45 ppbv 0.3 Chloroform 2.2 ug/m3 1.5 4.1 3,406.7 1,1,1-Trichloroethane ND ppbv 0.3 1,1,1-Trichloroethane ND ug/m3 1.6 Carbon Tetrachloride ND ppbv 0.3 Carbon Tetrachloride ND ug/m3 1.9 Benzene ND ppbv 0.3 Benzene ND ug/m3 0.96 1,2-Dichloroethane ND ppbv 0.3 1,2-Dichloroethane ND ug/m3 1.2 Trichloroethene ND ppbv 0.3 Trichloroethene ND ug/m3 1.6 1,2-Dichloropropane ND ppbv 0.3 1,2-Dichloropropane ND ug/m3 1.4 Bromodichloromethane ND ppbv 0.3 Bromodichloromethane ND ug/m3 2 cis-1,3-Dichloropropene ND ppbv 0.3 cis-1,3-Dichloropropene ND ug/m3 1.4 4-Methyl-2-Pentanone ND ppbv 0.3 4-Methyl-2-Pentanone ND ug/m3 1.2 not listed Toluene 0.33 ppbv 0.3 Toluene 1.2 ug/m3 1.1 --10,428.6 trans-1,3-Dichloropropene ND ppbv 0.3 trans-1,3-Dichloropropene ND ug/m3 1.4 1,1,2-Trichloroethane ND ppbv 0.3 1,1,2-Trichloroethane ND ug/m3 1.6 Tetrachloroethene 0.42 ppbv 0.3 Tetrachloroethene 2.8 ug/m3 2 15.3 1390.5 2-Hexanone 0.77 ppbv 0.75 2-Hexanone 3.2 ug/m3 3.1 not listed Dibromochloromethane ND ppbv 0.3 Dibromochloromethane ND ug/m3 2.6 1,2-Dibromoethane ND ppbv 0.3 1,2-Dibromoethane ND ug/m3 2.3 Chlorobenzene ND ppbv 0.3 Chlorobenzene ND ug/m3 1.4 Ethylbenzene ND ppbv 0.3 Ethylbenzene ND ug/m3 1.3 m,p-Xylenes ND ppbv 0.6 m,p-Xylenes ND ug/m3 2.6 o-Xylene ND ppbv 0.3 o-Xylene ND ug/m3 1.3 Styrene ND ppbv 0.3 Styrene ND ug/m3 1.3 Bromoform ND ppbv 0.3 E2C Remediation Table 1-14 Project Number 2162RV43 April 5, 2024 Bromoform ND ug/m3 3.1 1,1,2,2-Tetrachloroethane ND ppbv 0.3 1,1,2,2-Tetrachloroethane ND ug/m3 2.1 1,1,1,2-Tetrachloroethane ND ppbv 0.3 1,1,1,2-Tetrachloroethane ND ug/m3 2.1 4-Ethyltoluene ND ppbv 0.3 4-Ethyltoluene ND ug/m3 1.5 1,3,5-Trimethylbenzene ND ppbv 0.3 1,3,5-Trimethylbenzene ND ug/m3 1.5 1,2,4-Trimethylbenzene ND ppbv 0.3 1,2,4-Trimethylbenzene ND ug/m3 1.5 1,3-Dichlorobenzene ND ppbv 0.3 1,3-Dichlorobenzene ND ug/m3 1.8 1,4-Dichlorobenzene ND ppbv 0.3 1,4-Dichlorobenzene ND ug/m3 1.8 Benzyl chloride ND ppbv 0.3 Benzyl chloride ND ug/m3 1.6 1,2-Dichlorobenzene ND ppbv 0.3 1,2-Dichlorobenzene ND ug/m3 1.8 1,2,4-Trichlorobenzene ND ppbv 0.3 1,2,4-Trichlorobenzene ND ug/m3 2.2 Hexachlorobutadiene ND ppbv 0.3 Hexachlorobutadiene ND ug/m3 3.2 Xylene (total)ND ppbv 0.3 Xylene (total)ND ug/m3 1.3 Surrogates Limits Bromofluorobenzene 87%%REC 60-140 TPH Gasoline na ppmv 0.038 TPH Gasoline na ug/m3 150 Method: EPA TO-3M E2C Remediation Table 1-15 Project Number 2162RV43 April 5, 2024 Sample ID:SVP-8 Lab ID:504090-008 Matrix:Air Proposed Residential-Use Area Analyte Result Units RL Cancer Risk Non- cancer Hazard 1,1-Difluoroethane ND ppbv 1.5 1,1-Difluoroethane ND ug/m3 4.1 Freon 12 ND ppbv 0.3 Freon 12 ND ug/m3 1.5 Freon 114 ND ppbv 0.3 Freon 114 ND ug/m3 2.1 Chloromethane 2.0 ppbv 0.3 Chloromethane 4.2 ug/m3 0.62 --3,128.6 Vinyl Chloride ND ppbv 0.3 Vinyl Chloride ND ug/m3 0.77 Bromomethane ND ppbv 0.3 Bromomethane ND ug/m3 1.2 Chloroethane ND ppbv 0.3 Chloroethane ND ug/m3 0.79 Trichlorofluoromethane ND ppbv 0.3 Trichlorofluoromethane ND ug/m3 1.7 1,1-Dichloroethene ND ppbv 0.3 1,1-Dichloroethene ND ug/m3 1.2 Freon 113 ND ppbv 0.3 Freon 113 ND ug/m3 2.3 Acetone 120 ppbv 1.5 Acetone 280 ug/m3 3.6 --1,077,619 Carbon Disulfide 7.6 ppbv 0.3 Carbon Disulfide 24 ug/m3 0.93 not listed Isopropanol (IPA)17 ppbv 1.5 Isopropanol (IPA)43 ug/m3 3.7 not listed Methylene Chloride ND ppbv 0.3 Methylene Chloride ND ug/m3 1 trans-1,2-Dichloroethene ND ppbv 0.3 trans-1,2-Dichloroethene ND ug/m3 1.2 MTBE ND ppbv 0.3 MTBE ND ug/m3 1.1 n-Hexane 11 ppbv 0.3 n-Hexane 39 ug/m3 1.1 not listed 1,1-Dichloroethane ND ppbv 0.3 1,1-Dichloroethane ND ug/m3 1.2 Vinyl Acetate ND ppbv 1.5 Vinyl Acetate ND ug/m3 5.3 cis-1,2-Dichloroethene ND ppbv 0.3 cis-1,2-Dichloroethene ND ug/m3 1.2 Residential - HHRL Sub-slab soil gas Vapor Intrusion Method: EPA TO-15 ug/M3 Prep Method: METHOD E2C Remediation Table 1-16 Project Number 2162RV43 April 5, 2024 2-Butanone 26 ppbv 1.5 2-Butanone 75 ug/m3 4.4 not listed Chloroform ND ppbv 0.3 Chloroform ND ug/m3 1.5 1,1,1-Trichloroethane ND ppbv 0.3 1,1,1-Trichloroethane ND ug/m3 1.6 Carbon Tetrachloride ND ppbv 0.3 Carbon Tetrachloride ND ug/m3 1.9 Benzene 23 ppbv 0.3 Benzene 73 ug/m3 0.96 3.23 104.29 1,2-Dichloroethane ND ppbv 0.3 1,2-Dichloroethane ND ug/m3 1.2 Trichloroethene ND ppbv 0.3 Trichloroethene ND ug/m3 1.6 1,2-Dichloropropane ND ppbv 0.3 1,2-Dichloropropane ND ug/m3 1.4 Bromodichloromethane ND ppbv 0.3 Bromodichloromethane ND ug/m3 2 cis-1,3-Dichloropropene ND ppbv 0.3 cis-1,3-Dichloropropene ND ug/m3 1.4 4-Methyl-2-Pentanone 1.3 ppbv 0.3 4-Methyl-2-Pentanone 5.2 ug/m3 1.2 not listed Toluene 7.1 ppbv 0.3 Toluene 27 ug/m3 1.1 --10,428.6 trans-1,3-Dichloropropene ND ppbv 0.3 trans-1,3-Dichloropropene ND ug/m3 1.4 1,1,2-Trichloroethane ND ppbv 0.3 1,1,2-Trichloroethane ND ug/m3 1.6 Tetrachloroethene nd<1.0 ppbv 0.3 Tetrachloroethene nd<7.1 ug/m3 2 15.3 1390.5 2-Hexanone ND ppbv 0.75 2-Hexanone ND ug/m3 3.1 Dibromochloromethane ND ppbv 0.3 Dibromochloromethane ND ug/m3 2.6 1,2-Dibromoethane ND ppbv 0.3 1,2-Dibromoethane ND ug/m3 2.3 Chlorobenzene ND ppbv 0.3 Chlorobenzene ND ug/m3 1.4 Ethylbenzene ND ppbv 0.3 Ethylbenzene ND ug/m3 1.3 m,p-Xylenes ND ppbv 0.6 m,p-Xylenes ND ug/m3 2.6 o-Xylene ND ppbv 0.3 o-Xylene ND ug/m3 1.3 Styrene 1.2 ppbv 0.3 Styrene 5.0 ug/m3 1.3 --31,285.7 Bromoform ND ppbv 0.3 E2C Remediation Table 1-17 Project Number 2162RV43 April 5, 2024 Bromoform ND ug/m3 3.1 1,1,2,2-Tetrachloroethane ND ppbv 0.3 1,1,2,2-Tetrachloroethane ND ug/m3 2.1 1,1,1,2-Tetrachloroethane ND ppbv 0.3 1,1,1,2-Tetrachloroethane ND ug/m3 2.1 4-Ethyltoluene ND ppbv 0.3 4-Ethyltoluene ND ug/m3 1.5 1,3,5-Trimethylbenzene ND ppbv 0.3 1,3,5-Trimethylbenzene ND ug/m3 1.5 1,2,4-Trimethylbenzene ND ppbv 0.3 1,2,4-Trimethylbenzene ND ug/m3 1.5 1,3-Dichlorobenzene ND ppbv 0.3 1,3-Dichlorobenzene ND ug/m3 1.8 1,4-Dichlorobenzene ND ppbv 0.3 1,4-Dichlorobenzene ND ug/m3 1.8 Benzyl chloride ND ppbv 0.3 Benzyl chloride ND ug/m3 1.6 1,2-Dichlorobenzene ND ppbv 0.3 1,2-Dichlorobenzene ND ug/m3 1.8 1,2,4-Trichlorobenzene ND ppbv 0.3 1,2,4-Trichlorobenzene ND ug/m3 2.2 Hexachlorobutadiene ND ppbv 0.3 Hexachlorobutadiene ND ug/m3 3.2 Xylene (total)ND ppbv 0.3 Xylene (total)ND ug/m3 1.3 Surrogates Limits Bromofluorobenzene 89%%REC 60-140 TPH Gasoline na ppmv 0.038 TPH Gasoline na ug/m3 150 Method: EPA TO-3M E2C Remediation Table 1-18 Project Number 2162RV43 April 5, 2024 Sample ID:SVP-9 Lab ID:504090-007 Matrix:Air Proposed Residential-Use Area Analyte Result Units RL Cancer Risk Non- cancer Hazard 1,1-Difluoroethane ND ppbv 1.5 1,1-Difluoroethane ND ug/m3 4.1 Freon 12 0.38 ppbv 0.3 Freon 12 1.9 ug/m3 1.5 not listed Freon 114 ND ppbv 0.3 Freon 114 ND ug/m3 2.1 Chloromethane ND ppbv 0.3 Chloromethane ND ug/m3 0.62 Vinyl Chloride ND ppbv 0.3 Vinyl Chloride ND ug/m3 0.77 Bromomethane ND ppbv 0.3 Bromomethane ND ug/m3 1.2 Chloroethane ND ppbv 0.3 Chloroethane ND ug/m3 0.79 Trichlorofluoromethane ND ppbv 0.3 Trichlorofluoromethane ND ug/m3 1.7 1,1-Dichloroethene ND ppbv 0.3 1,1-Dichloroethene ND ug/m3 1.2 Freon 113 ND ppbv 0.3 Freon 113 ND ug/m3 2.3 Acetone 24 ppbv 1.5 Acetone 57 ug/m3 3.6 --1,077,619 Carbon Disulfide 0.3 ppbv 0.3 Carbon Disulfide 0.92 ug/m3 0.93 not listed Isopropanol (IPA)2.6 ppbv 1.5 Isopropanol (IPA)6.5 ug/m3 3.7 not listed Methylene Chloride ND ppbv 0.3 Methylene Chloride ND ug/m3 1 trans-1,2-Dichloroethene ND ppbv 0.3 trans-1,2-Dichloroethene ND ug/m3 1.2 MTBE ND ppbv 0.3 MTBE ND ug/m3 1.1 n-Hexane ND ppbv 0.3 n-Hexane ND ug/m3 1.1 1,1-Dichloroethane ND ppbv 0.3 1,1-Dichloroethane ND ug/m3 1.2 Vinyl Acetate ND ppbv 1.5 Vinyl Acetate ND ug/m3 5.3 cis-1,2-Dichloroethene ND ppbv 0.3 cis-1,2-Dichloroethene ND ug/m3 1.2 Method: EPA TO-15 ug/M3 Prep Method: METHOD Sub-slab soil gas Vapor Intrusion Residential - HHRL E2C Remediation Table 1-19 Project Number 2162RV43 April 5, 2024 2-Butanone 7.2 ppbv 1.5 2-Butanone 21 ug/m3 4.4 not listed Chloroform ND ppbv 0.3 Chloroform ND ug/m3 1.5 1,1,1-Trichloroethane ND ppbv 0.3 1,1,1-Trichloroethane ND ug/m3 1.6 Carbon Tetrachloride ND ppbv 0.3 Carbon Tetrachloride ND ug/m3 1.9 Benzene ND ppbv 0.3 Benzene ND ug/m3 0.96 1,2-Dichloroethane ND ppbv 0.3 1,2-Dichloroethane ND ug/m3 1.2 Trichloroethene ND ppbv 0.3 Trichloroethene ND ug/m3 1.6 1,2-Dichloropropane ND ppbv 0.3 1,2-Dichloropropane ND ug/m3 1.4 Bromodichloromethane ND ppbv 0.3 Bromodichloromethane ND ug/m3 2 cis-1,3-Dichloropropene ND ppbv 0.3 cis-1,3-Dichloropropene ND ug/m3 1.4 4-Methyl-2-Pentanone 0.35 ppbv 0.3 4-Methyl-2-Pentanone 1.4 ug/m3 1.2 not listed Toluene ND ppbv 0.3 Toluene ND ug/m3 1.1 trans-1,3-Dichloropropene ND ppbv 0.3 trans-1,3-Dichloropropene ND ug/m3 1.4 1,1,2-Trichloroethane ND ppbv 0.3 1,1,2-Trichloroethane ND ug/m3 1.6 Tetrachloroethene nd<0.26 ppbv 0.3 Tetrachloroethene nd<1.8 ug/m3 2 15.3 1,390.5 2-Hexanone 1.4 ppbv 0.75 2-Hexanone 5.8 ug/m3 3.1 not listed Dibromochloromethane ND ppbv 0.3 Dibromochloromethane ND ug/m3 2.6 1,2-Dibromoethane ND ppbv 0.3 1,2-Dibromoethane ND ug/m3 2.3 Chlorobenzene ND ppbv 0.3 Chlorobenzene ND ug/m3 1.4 Ethylbenzene ND ppbv 0.3 Ethylbenzene ND ug/m3 1.3 m,p-Xylenes ND ppbv 0.6 m,p-Xylenes ND ug/m3 2.6 o-Xylene ND ppbv 0.3 o-Xylene ND ug/m3 1.3 Styrene ND ppbv 0.3 Styrene ND ug/m3 1.3 Bromoform ND ppbv 0.3 E2C Remediation Table 1-20 Project Number 2162RV43 April 5, 2024 Bromoform ND ug/m3 3.1 1,1,2,2-Tetrachloroethane ND ppbv 0.3 1,1,2,2-Tetrachloroethane ND ug/m3 2.1 1,1,1,2-Tetrachloroethane ND ppbv 0.3 1,1,1,2-Tetrachloroethane ND ug/m3 2.1 4-Ethyltoluene ND ppbv 0.3 4-Ethyltoluene ND ug/m3 1.5 1,3,5-Trimethylbenzene ND ppbv 0.3 1,3,5-Trimethylbenzene ND ug/m3 1.5 1,2,4-Trimethylbenzene ND ppbv 0.3 1,2,4-Trimethylbenzene ND ug/m3 1.5 1,3-Dichlorobenzene ND ppbv 0.3 1,3-Dichlorobenzene ND ug/m3 1.8 1,4-Dichlorobenzene ND ppbv 0.3 1,4-Dichlorobenzene ND ug/m3 1.8 Benzyl chloride ND ppbv 0.3 Benzyl chloride ND ug/m3 1.6 1,2-Dichlorobenzene ND ppbv 0.3 1,2-Dichlorobenzene ND ug/m3 1.8 1,2,4-Trichlorobenzene ND ppbv 0.3 1,2,4-Trichlorobenzene ND ug/m3 2.2 Hexachlorobutadiene ND ppbv 0.3 Hexachlorobutadiene ND ug/m3 3.2 Xylene (total)ND ppbv 0.3 Xylene (total)ND ug/m3 1.3 Surrogates Limits Bromofluorobenzene 88%%REC 60-140 TPH Gasoline na ppmv 0.038 TPH Gasoline na ug/m3 150 Sample ID:SVP-10 Sample ID:SVP-11 No flow, so vapor sample could not be collected Method: EPA TO-3M SUMMA canister compromised, so no attempt to collect vapor sample E2C Remediation Table 1-21 Project Number 2162RV43 April 5, 2024 Sample ID:SVP-12 Lab ID:504090-005 Matrix:Air Proposed Residential-Use Area Analyte Result Units RL Cancer Risk Non- cancer Hazard 1,1-Difluoroethane ND ppbv 1.5 1,1-Difluoroethane ND ug/m3 4.1 Freon 12 0.44 ppbv 0.3 Freon 12 2.2 ug/m3 1.5 not listed Freon 114 ND ppbv 0.3 Freon 114 ND ug/m3 2.1 Chloromethane 0.82 ppbv 0.3 Chloromethane 1.7 ug/m3 0.62 --3,128.6 Vinyl Chloride ND ppbv 0.3 Vinyl Chloride ND ug/m3 0.77 Bromomethane ND ppbv 0.3 Bromomethane ND ug/m3 1.2 Chloroethane ND ppbv 0.3 Chloroethane ND ug/m3 0.79 Trichlorofluoromethane ND ppbv 0.3 Trichlorofluoromethane ND ug/m3 1.7 1,1-Dichloroethene ND ppbv 0.3 1,1-Dichloroethene ND ug/m3 1.2 Freon 113 ND ppbv 0.3 Freon 113 ND ug/m3 2.3 Acetone 42 ppbv 1.5 Acetone 100 ug/m3 3.6 --1,077,619 Carbon Disulfide 0.71 ppbv 0.3 Carbon Disulfide 2.2 ug/m3 0.93 not listed Isopropanol (IPA)2.8 ppbv 1.5 Isopropanol (IPA)6.9 ug/m3 3.7 not listed Methylene Chloride 0.44 ppbv 0.3 Methylene Chloride 1.5 ug/m3 1 33.8 13,904.8 trans-1,2-Dichloroethene ND ppbv 0.3 trans-1,2-Dichloroethene ND ug/m3 1.2 MTBE ND ppbv 0.3 MTBE ND ug/m3 1.1 n-Hexane 2.5 ppbv 0.3 n-Hexane 8.6 ug/m3 1.1 not listed 1,1-Dichloroethane ND ppbv 0.3 1,1-Dichloroethane ND ug/m3 1.2 Vinyl Acetate ND ppbv 1.5 Vinyl Acetate ND ug/m3 5.3 cis-1,2-Dichloroethene ND ppbv 0.3 cis-1,2-Dichloroethene ND ug/m3 1.2 Residential - HHRL Sub-slab soil gas Vapor Intrusion Method: EPA TO-15 ug/M3 Prep Method: METHOD E2C Remediation Table 1-22 Project Number 2162RV43 April 5, 2024 2-Butanone 8.1 ppbv 1.5 2-Butanone 24 ug/m3 4.4 not listed Chloroform ND ppbv 0.3 Chloroform ND ug/m3 1.5 1,1,1-Trichloroethane ND ppbv 0.3 1,1,1-Trichloroethane ND ug/m3 1.6 Carbon Tetrachloride ND ppbv 0.3 Carbon Tetrachloride ND ug/m3 1.9 Benzene 1.2 ppbv 0.3 Benzene 4.0 ug/m3 0.96 3.23 104.29 1,2-Dichloroethane ND ppbv 0.3 1,2-Dichloroethane ND ug/m3 1.2 Trichloroethene ND ppbv 0.3 Trichloroethene ND ug/m3 1.6 1,2-Dichloropropane ND ppbv 0.3 1,2-Dichloropropane ND ug/m3 1.4 Bromodichloromethane ND ppbv 0.3 Bromodichloromethane ND ug/m3 2 cis-1,3-Dichloropropene ND ppbv 0.3 cis-1,3-Dichloropropene ND ug/m3 1.4 4-Methyl-2-Pentanone ND ppbv 0.3 4-Methyl-2-Pentanone ND ug/m3 1.2 Toluene 1.3 ppbv 0.3 Toluene 5.0 ug/m3 1.1 --10,428.6 trans-1,3-Dichloropropene ND ppbv 0.3 trans-1,3-Dichloropropene ND ug/m3 1.4 1,1,2-Trichloroethane ND ppbv 0.3 1,1,2-Trichloroethane ND ug/m3 1.6 Tetrachloroethene nd<0.28 ppbv 0.3 Tetrachloroethene nd<1.9 ug/m3 2 15.3 1,390.5 2-Hexanone ND ppbv 0.75 2-Hexanone ND ug/m3 3.1 Dibromochloromethane ND ppbv 0.3 Dibromochloromethane ND ug/m3 2.6 1,2-Dibromoethane ND ppbv 0.3 1,2-Dibromoethane ND ug/m3 2.3 Chlorobenzene ND ppbv 0.3 Chlorobenzene ND ug/m3 1.4 Ethylbenzene ND ppbv 0.3 Ethylbenzene ND ug/m3 1.3 m,p-Xylenes ND ppbv 0.6 m,p-Xylenes ND ug/m3 2.6 o-Xylene ND ppbv 0.3 o-Xylene ND ug/m3 1.3 Styrene ND ppbv 0.3 Styrene ND ug/m3 1.3 Bromoform ND ppbv 0.3 E2C Remediation Table 1-23 Project Number 2162RV43 April 5, 2024 Bromoform ND ug/m3 3.1 1,1,2,2-Tetrachloroethane ND ppbv 0.3 1,1,2,2-Tetrachloroethane ND ug/m3 2.1 1,1,1,2-Tetrachloroethane ND ppbv 0.3 1,1,1,2-Tetrachloroethane ND ug/m3 2.1 4-Ethyltoluene ND ppbv 0.3 4-Ethyltoluene ND ug/m3 1.5 1,3,5-Trimethylbenzene ND ppbv 0.3 1,3,5-Trimethylbenzene ND ug/m3 1.5 1,2,4-Trimethylbenzene ND ppbv 0.3 1,2,4-Trimethylbenzene ND ug/m3 1.5 1,3-Dichlorobenzene ND ppbv 0.3 1,3-Dichlorobenzene ND ug/m3 1.8 1,4-Dichlorobenzene ND ppbv 0.3 1,4-Dichlorobenzene ND ug/m3 1.8 Benzyl chloride ND ppbv 0.3 Benzyl chloride ND ug/m3 1.6 1,2-Dichlorobenzene ND ppbv 0.3 1,2-Dichlorobenzene ND ug/m3 1.8 1,2,4-Trichlorobenzene ND ppbv 0.3 1,2,4-Trichlorobenzene ND ug/m3 2.2 Hexachlorobutadiene ND ppbv 0.3 Hexachlorobutadiene ND ug/m3 3.2 Xylene (total)ND ppbv 0.3 Xylene (total)ND ug/m3 1.3 Surrogates Limits Bromofluorobenzene 86%%REC 60-140 TPH Gasoline na ppmv 0.038 TPH Gasoline na ug/m3 150 Method: EPA TO-3M E2C Remediation Table 1-24 Project Number 2162RV43 April 5, 2024 Sample ID:SVP-13 Lab ID:504090-006 Matrix:Air Proposed Residential-Use Area Analyte Result Units RL Cancer Risk Non- cancer Hazard 1,1-Difluoroethane ND ppbv 1.5 1,1-Difluoroethane ND ug/m3 4.1 Freon 12 0.32 ppbv 0.3 Freon 12 1.6 ug/m3 1.5 not listed Freon 114 ND ppbv 0.3 Freon 114 ND ug/m3 2.1 Chloromethane 0.27 ppbv 0.3 Chloromethane 0.56 ug/m3 0.62 --3,128.6 Vinyl Chloride ND ppbv 0.3 Vinyl Chloride ND ug/m3 0.77 Bromomethane ND ppbv 0.3 Bromomethane ND ug/m3 1.2 Chloroethane ND ppbv 0.3 Chloroethane ND ug/m3 0.79 Trichlorofluoromethane ND ppbv 0.3 Trichlorofluoromethane ND ug/m3 1.7 1,1-Dichloroethene ND ppbv 0.3 1,1-Dichloroethene ND ug/m3 1.2 Freon 113 ND ppbv 0.3 Freon 113 ND ug/m3 2.3 Acetone 97 ppbv 1.5 Acetone 230 ug/m3 3.6 --1,077,619 Carbon Disulfide 0.88 ppbv 0.3 Carbon Disulfide 2.7 ug/m3 0.93 not listed Isopropanol (IPA)5.4 ppbv 1.5 Isopropanol (IPA)13 ug/m3 3.7 not listed Methylene Chloride ND ppbv 0.3 Methylene Chloride ND ug/m3 1 trans-1,2-Dichloroethene ND ppbv 0.3 trans-1,2-Dichloroethene ND ug/m3 1.2 MTBE ND ppbv 0.3 MTBE ND ug/m3 1.1 n-Hexane 2.5 ppbv 0.3 n-Hexane 9.0 ug/m3 1.1 not listed 1,1-Dichloroethane ND ppbv 0.3 1,1-Dichloroethane ND ug/m3 1.2 Vinyl Acetate ND ppbv 1.5 Vinyl Acetate ND ug/m3 5.3 cis-1,2-Dichloroethene ND ppbv 0.3 cis-1,2-Dichloroethene ND ug/m3 1.2 Method: EPA TO-15 ug/M3 Prep Method: METHOD Residential - HHRL Sub-slab soil gas Vapor Intrusion E2C Remediation Table 1-25 Project Number 2162RV43 April 5, 2024 2-Butanone 25 ppbv 1.5 2-Butanone 72 ug/m3 4.4 not listed Chloroform ND ppbv 0.3 Chloroform ND ug/m3 1.5 1,1,1-Trichloroethane ND ppbv 0.3 1,1,1-Trichloroethane ND ug/m3 1.6 Carbon Tetrachloride ND ppbv 0.3 Carbon Tetrachloride ND ug/m3 1.9 Benzene 3.7 ppbv 0.3 Benzene 12 ug/m3 0.96 3.23 104.29 1,2-Dichloroethane ND ppbv 0.3 1,2-Dichloroethane ND ug/m3 1.2 Trichloroethene ND ppbv 0.3 Trichloroethene ND ug/m3 1.6 1,2-Dichloropropane ND ppbv 0.3 1,2-Dichloropropane ND ug/m3 1.4 Bromodichloromethane ND ppbv 0.3 Bromodichloromethane ND ug/m3 2 cis-1,3-Dichloropropene ND ppbv 0.3 cis-1,3-Dichloropropene ND ug/m3 1.4 4-Methyl-2-Pentanone 0.99 ppbv 0.3 4-Methyl-2-Pentanone 4.1 ug/m3 1.2 not listed Toluene 1.9 ppbv 0.3 Toluene 7.2 ug/m3 1.1 --10,428.6 trans-1,3-Dichloropropene ND ppbv 0.3 trans-1,3-Dichloropropene ND ug/m3 1.4 1,1,2-Trichloroethane ND ppbv 0.3 1,1,2-Trichloroethane ND ug/m3 1.6 Tetrachloroethene 1.5 ppbv 0.3 Tetrachloroethene 10 ug/m3 2 15.3 1,390.5 2-Hexanone 1.8 ppbv 0.75 2-Hexanone 7.5 ug/m3 3.1 not listed Dibromochloromethane ND ppbv 0.3 Dibromochloromethane ND ug/m3 2.6 1,2-Dibromoethane ND ppbv 0.3 1,2-Dibromoethane ND ug/m3 2.3 Chlorobenzene ND ppbv 0.3 Chlorobenzene ND ug/m3 1.4 Ethylbenzene 0.3 ppbv 0.3 Ethylbenzene 1.3 ug/m3 1.3 37.4 34,761.9 m,p-Xylenes ND ppbv 0.6 m,p-Xylenes ND ug/m3 2.6 o-Xylene ND ppbv 0.3 o-Xylene ND ug/m3 1.3 Styrene 0.41 ppbv 0.3 Styrene 1.8 ug/m3 1.3 --31,285.7 Bromoform ND ppbv 0.3 E2C Remediation Table 1-26 Project Number 2162RV43 April 5, 2024 Bromoform ND ug/m3 3.1 1,1,2,2-Tetrachloroethane ND ppbv 0.3 1,1,2,2-Tetrachloroethane ND ug/m3 2.1 1,1,1,2-Tetrachloroethane ND ppbv 0.3 1,1,1,2-Tetrachloroethane ND ug/m3 2.1 4-Ethyltoluene ND ppbv 0.3 4-Ethyltoluene ND ug/m3 1.5 1,3,5-Trimethylbenzene ND ppbv 0.3 1,3,5-Trimethylbenzene ND ug/m3 1.5 1,2,4-Trimethylbenzene ND ppbv 0.3 1,2,4-Trimethylbenzene ND ug/m3 1.5 1,3-Dichlorobenzene ND ppbv 0.3 1,3-Dichlorobenzene ND ug/m3 1.8 1,4-Dichlorobenzene ND ppbv 0.3 1,4-Dichlorobenzene ND ug/m3 1.8 Benzyl chloride ND ppbv 0.3 Benzyl chloride ND ug/m3 1.6 1,2-Dichlorobenzene ND ppbv 0.3 1,2-Dichlorobenzene ND ug/m3 1.8 1,2,4-Trichlorobenzene ND ppbv 0.3 1,2,4-Trichlorobenzene ND ug/m3 2.2 Hexachlorobutadiene ND ppbv 0.3 Hexachlorobutadiene ND ug/m3 3.2 Xylene (total)ND ppbv 0.3 Xylene (total)ND ug/m3 1.3 Surrogates Limits Bromofluorobenzene 87%%REC 60-140 TPH Gasoline na ppmv 0.038 TPH Gasoline na ug/m3 150 Sample ID:SVP-14 Method: EPA TO-3M Filled with water, so unable to collect sample E2C Remediation Table 1-27 Project Number 2162RV43 April 5, 2024 (mg/Kg) Cancer Risk Non-Cancer Hazard AS 1.6 2.0 3.6 Pb 2.0 2700.8 160.0 AS 2.8 2.0 3.6 Pb 2.8 2700.8 160.0 EPA Method 8240 Non-detect for all compounds EPA Method 8270C Non-detect for all compounds EPA Method 8240 Non-detect for all compounds EPA Method 8270C Non-detect for all compounds except Phenol Phenol 0.260 --97,938 AS 2.3 2.0 3.6 Pb 2.0 2700.8 160.0 AS 2.6 2.0 3.6 Pb 2.1 2700.8 160.0 EPA Method 8240 Non-detect for all compounds EPA Method 8270C Non-detect for all compounds EPA Method 8240 Non-detect for all compounds EPA Method 8270C Non-detect for all compounds AS 2.2 2.0 3.6 Pb 1.3 2700.8 160.0 AS 1.5 2.0 3.6 Pb ND 2700.8 160.0 EPA Method 8240 Non-detect for all compounds EPA Method 8270C Non-detect for all compounds EPA Method 8240 Non-detect for all compounds EPA Method 8270C Non-detect for all compounds PS-1@2.5 PS-1@5 3/5/2024 3/5/2024 PS-3@2.5 PS-3@5 3/5/2024 PS-3@2.5 3/5/2024 PS-3@5 504105-003 504105-004 PS-2@2.5 3/5/2024 PS-2@5 PS-2@2.5 PS-2@5 504105-005 504105-006 Result Table 2 - Summary of Soil Data Compared to ESLs (mg/Kg) Construction Worker: Any Land Use/ Any Depth Soil Exposure Direct Exposure Human Health Risk Perimeter: 1390 Walker Street, 280-290 Pismo Street and 251 Pacific Street San Luis Obispo, California 504105-008 Sample ID Date Collected Lab ID Analyte 504105-007 3/5/2024 PS-1@2.5 PS-1@5 E2C Remediation Table 2-1 Project Number 2162RV43 April 5, 2024 AS 1.8 2.0 3.6 Pb 1.2 2700.8 160.0 AS 2.7 2.0 3.6 Pb 3.6 2700.8 160.0 EPA Method 8240 Non-detect for all compounds EPA Method 8270C Non-detect for all compounds EPA Method 8240 Non-detect for all compounds EPA Method 8270C Non-detect for all compounds Notes: AS = Arsenic PB = Lead mg/Kg = milligrams per Kilogram ND = Not detected at or above the Method Reporting Limit of 0.99 mg/Kg 6010B Metals EPA Prep method 3050B PS-4@5 Metals EPA Analytical Method PS-4@2.5 PS-4@5 3/5/2024 PS-4@2.5 3/5/2024 504105-001 504105-002 E2C Remediation Table 2-2 Project Number 2162RV43 April 5, 2024 E2C Remediation Appendices APPENDICES Appendix A Soil Vapor Sampling and Soil Sampling Workplan Former PG&E Manufactured Gas Plant Property San Luis Obispo, California, dated February 12, 2024 Appendix B Site Investigation Field Notes Appendix C Soil-Vapor Laboratory Analytical Report Appendix D EPA Method 8260B, EPA Method 8270C and Arsenic and Lead Laboratory Analytical Reports Appendix E RWQCB Vapor and Soil ESLs Appendix F PROVEN TECHNOLOGIES AND REMEDIES GUIDANCE – REMEDIATION OF METALS IN SOIL, DTSC, 2007 Project Number 2162RV43 April 5, 2024 E2C Remediation Appendix A APPENDIX A Soil Vapor Sampling and Soil Sampling Workplan Former PG&E Manufactured Gas Plant Property San Luis Obispo, California, dated February 12, 2024 233 Technology Way, Suite 7, Rocklin, CA 95765 Tel 916.782.8700 fax 916.782.8750 February 12, 2024 Mr. Bryan Hulburd Covelop, Inc. P.O. Box 12910 San Luis Obispo, CA 93406 Subject: Soil Vapor Sampling and Soil Sampling Workplan Former PG&E Manufactured Gas Plant Property San Luis Obispo, California Dear Mr. Hulburd: This Workplan is submitted to address performing a round of soil-vapor sampling at the above-captioned site (Site) to collect volatile organic compound (VOC), principally Tetrachloroethene (PCE), data for shallow soil-gas across the proposed residential-use construction area at the above site (Site). Additionally, in the area of the historic stone building and the existing vacant retail space, where Manufactured Gas Plant (MGP) impacted soils were not removed, collect soil gas samples and analyze for both PCE and volatile hydrocarbon-related compounds. In addition, and at your request, collect confirmation soil samples at three (3) areas indicated by you in your email correspondence of January 30, 2024. This soil-vapor data will be used to formulate a viable remedial strategy for mitigation of PCE vapor emanating upward from the underlying groundwater PCE plume that is known to exist beneath the Site in order to protect human health within the potential residential-use areas. The perimeter soil sample data can be used to evaluate potential offsite migration of contaminants from unknown pathways. Additionally, the soil-vapor data and the perimeter soil data can also be used to assess human health risks for on-site construction workers during construction processes. Similarly, the data from the commercial use areas will be used to evaluate whether the soil vapor data warrants remedial measures for the commercial use areas due to both VOC’s (primarily PCE) and Volatile Hydrocarbons from the former MGP operations. For the soil-vapor sampling, E2C Remediation (E2C) proposes advancing soil-vapor probes (SVP) and collecting soil-vapor samples at twenty-five (25) locations (See Figure 2) for locations. In addition, E2C proposes collecting up to three (3) ambient air samples to ascertain whether ambient vapor concentrations are potentially impacting indoor air concentrations. Project Number 2162RV47 February 12, 2024 E2C Remediation 2 Table 1 – Summary of Soil-Vapor Sample Locations Type Number Location ID Analysis Ambient Air 2 AA-1 & 3 (tops of buildings) Modified EPA Methods TO-15 & TO-3 Ambient Air 1 AA-2 (top of 7-foot ladder) SVP Samples 16 SVP-1 through 9 and SVP-19-25 SVP Samples 9 SVP-10 through 18 Modified EPA Method TO-15 Leak Tests 25 SVP-1 through SVP-25 Modified EPA Methods TO-15 & TO-3 Refer to attached Figure 2 for locations. For the perimeter soil sampling, E2C proposes advancing borings at nine (9) locations as depicted on Figure 2. Soil samples will be collected using the direct-push method with collection of soil samples at 2.5 feet and 5 feet from each of the nine (9) borings. Table 2 – Summary of Soil Sample Locations Type Number Location ID Analysis Perimeter 5 x 2 = 10 PS-1 through PS-5; 2 samples each at 2.5 and 5-feet + Arsenic and lead EPA Methods 8240 & 8270 & SW-846 Method 6010C Building Interior 2 x 2 = 4 BS-1 and BS-2; 2 samples each at 2.5- and 5-feet for Arsenic and Lead SW-846 - Method 6010C – Inductively Coupled Plasma Atomic Emission Spectrometry Refer to attached Figure 2 for locations. Task 1 – Approval of Workplan and Permitting Prior to implementation of this Workplan, the current owner of the property (PG&E) has to approve the Workplan. As none of these soil vapor probes will reach groundwater, the San Luis Obispo County Environmental Health Department does not require permits for this work. Task 2 – Boring Location Clearance Prior to conducting the fieldwork, an E2C representative will visit the Site and mark boring locations around the Site’s perimeter at the locations depicted in Figure 2. USA Underground and, if needed, a private clearance utility company then will be notified to provide utility clearance approximately 48 hours to start of the fieldwork. Task 3 - Ambient Air Sampling At the same time as the boring location marking, the E2C representative will set up the Ambient Air Sampling locations. In addition, at that time, the site’s aboveground surface conditions will be assessed prior to sampling and verified to confirm that three (3) ambient air sampling locations are representative to assess the current aboveground surface air quality. See Table 1 above for the proposed sampling locations and attached Figure 2 for plot of locations in reference to the site configuration. Project Number 2162RV47 February 12, 2024 E2C Remediation 3 Ambient Air Sampling Methods and Procedures Laboratory cleaned 6-liter vacuum canisters with integral vacuum gauges and flow regulators will be ordered from the laboratory. Each vacuum canister will be fitted with a flow regulator calibrated to collect the ambient air samples over a 24-hour period (to match the potential residential-use of proposed on-site buildings). Canisters will be inspected for initial vacuum. All the ancillary fittings will be checked, cleaned, and maintained. At the beginning of the sampling event (in the morning at approximately 8:00 am to 9:00 am), the designated locations will be inspected to evaluate possible influence by nearby chemicals. If necessary, the sampling locations will be adjusted to avoid or minimize the influence from other chemicals. Each canister will be placed at the designated or adjusted sample location with the inlet located at approximately four (4) to five (5) feet (ft) above the ground surface, the initial canister vacuum will be recorded, and the vacuum canister valve will be opened to initiate sample collection. Two (2) of the ambient sampling canisters will be placed on the tops of the two buildings; and the third will be placed at top of a 7-foot high ladder. Ambient air sample collection will be terminated after a 24-hour sampling period and the final vacuum will also be recorded. After sample collection is terminated, the vacuum canisters will be sealed, capped, and labeled. Ambient air sample information will be logged onto a chain-of-custody document. The ambient air samples will be subsequently shipped to the analytical laboratory with chain-of-custody documentation for analysis. The ambient air samples will subsequently be analyzed for chlorinated VOCs using Modified Environmental Protection Agency (EPA) Method TO-15 (low level) and EPA Modified Method TO-3 for volatile hydrocarbons to ensure that the method reporting limits are below the ambient air environmental screening levels for the primary contaminant of PCE. These methods will also provide data regarding other VOC compounds and PCE breakdown compounds. Task 4 - Soil Vapor Sampling and Chemical Analysis of Soil Vapor Samples Soil vapor will be collected at the SVP locations outlined in Table 1 above and as shown on attached Figure 2. SVP Sampling Methods and Procedures All SVP samples will be collected in accordance with guidelines outlined in the Advisory – Active Soil Gas Investigation (California EPA, July 2015). SVPs will be advanced using the direct-push method. A detailed Sampling and Analysis plan is included as Appendix B. Direct-Push Direct-push methods are used to assess the presence, concentrations and distribution of VOCs in the vadose zone (that area from the water table up to ground surface. Common sampling approaches include both active soil gas sampling and installation of devices that passively collect VOCs over a longer period (days to weeks). For the purpose of this investigation, the active soil-gas sampling method will be utilized. For this project, direct-push will utilize a Geoprobe 6712 DT, or equivalent rig. Project Number 2162RV47 February 12, 2024 E2C Remediation 4 Geoprobe 6712 DT – Outdoor Use Project Number 2162RV47 February 12, 2024 E2C Remediation 5 For advancing SVP inside limited access areas, if the 6712 DT is unable to access, a rig such as the Geoprobe 420M can be utilized. Geoprobe 420M – Indoor Use Prior to advancing each SVP boring, clean downhole equipment will be utilized. If additional rods are needed for continuing borings, each rod will be steam-cleaned. Project Number 2162RV47 February 12, 2024 E2C Remediation 6 Once the direct-push method using the appropriate direct-push rig has reached the desired depth, in this investigation five (5) feet below ground surface (bgs), tubing with an adapter on the end is lowered down the rods and threaded into the back of the expendable point holder. The drive rods are retracted a fixed distance (often 6 to 12 inches) so that soil vapor from the formation may be sampled through the plastic or stainless-steel tube at the surface. Usually the sample train is purged three (3) system volumes before the soil gas samples are collected. Measures to test for leaks and verify sample integrity will be conducted at each location. SVP-1 Example - Components of a direct-push soil-gas sampling probe. Each location will require purging and sampling. Once the sampling train is purged, the desired gas sampling device is placed in line and sampling is conducted. Sampling will be accomplished using pre-cleaned Summa canisters. Summa Canisters Samples will be collected in 1-liter Suma canisters after adequate purge of the vapor probes. The calculated purge volume for an example SVP sample is shown below in Table 2. Table 3 – Summary of Examples of SVP Configuration Example Soil Vapor Probe ID Bore Hole Diameter (inches) Porosity Probe Depth (feet) Tubing Diameter (inches) Purge Volume (1) (cubic centimeters) SVP 1-25’ 2.25 0.3 5 0.25 849 (1) Purge volume is calculated as three (3) times of the total of the sampling interval, void volume, and case volume. Each SVP configuration will be assessed prior to sample collection and the purge volume will be calculated accordingly. Task 5 – Soil Sampling At each location depicted on Figure 2, the direct-push method using the GeoProbe 6712 DT will be used to collect the soil samples. Each boring will be advanced to 2.5 Project Number 2162RV47 February 12, 2024 E2C Remediation 7 feet bgs and a soil sample will be retrieved using a split-spoon barrel attached to the rod. The boring will then be advanced to 5-feet bgs and a second sample will be retrieved. Note: For collection of soil samples inside the buildings, the GeoProbe 420M may be used to collect samples. Each sample will then be preserved in accordance with EPA Guidelines and housed in an ice-cooled chest for transport to the analytical laboratory. Chain-of-custody protocol will be in effect as detailed in Appendix B. Perimeter and building samples will be analyzed for EPA Methods 8240 and 8270b and by SW-846 Method 6010C for Arsenic and Lead. Boring Abandonment After sample collection at each location, the rod from each boring will be removed and then the boring will be properly abandoned with bentonite or neat-cement grout when the sampling event is completed. Waste Management These direct-push methods minimize the generation of waste cuttings (none) as the only soil removed from each boring is the samples collected at the target depths, thus minimizing potential worker exposure to hazardous contaminants. Boring Rod Decontamination After removal of boring rods used in the SVP sample collection, the rods will be steam- cleaned, the liquid will be collected in 55-gallon drums. The liquid will be properly characterized and disposed of in accordance with regulatory guidelines. Task 6 - Report of Findings (ROF) A report of findings will be prepared to document the collection of soil vapor, ambient air samples, and perimeter soil samples, and the analytical results as well as recommendations for consideration of additional investigative measures, if warranted. The ROF will be prepared under the supervision of a State of California Professional Geologist and will be reviewed and certified by a California Professional Geologist. Task 7 - Scheduling Upon approval of this Workplan by PG&E, E2C will coordinate access to Site including access to the interior of the existing buildings the direct-push and soil-gas sampling (ambient and SVP) and confirmation soil sampling, E2C will schedule the work. At least three (3) days prior to performing the site marking and setup of the ambient air sample locations, PG&E will be notified so that site access cab be facilitated. Once the site is marked, the utility locator for the perimeter soil sample locations will be notified. Upon completion of the perimeter soil sampling utility locating, it is estimated that field sampling for soil-vapor and perimeter soil sampling will take four (4) days and laboratory analysis will take two (2) weeks followed by 30 days for report preparation. If you have questions or you need additional information, please contact the undersigned at (916) 782 8700. Project Number 2162RV47 February 12, 2024 E2C Remediation 8 Respectfully Submitted, E2C Remediation Prepared By: William A. Lawson William A. Lawson, BA. MS Consulting Geologist And Reviewed By: Philip Goalwin, PG #4779 Principal Geologist Project Number 2162RV47 February 12, 2024 E2C Remediation Figures FIGURES Figure 1 Site Location Map Figure 2 Site Plan Covelop Location Map Write a description for your map. Legend 265 Pacific St California Polytechnic State University San Luis Obispo County Regional Airport 3 mi N➤➤N 233 Technology Way, #7, Rocklin, CA 95765 Phone: (916) 782-8700 Fax: (916) 782-8750 FIGURE 2SVP SITE PLAN COVELOP San Luis Obispo, California SVP-1SVP-1 SVP-6 SVP-5 SVP-4 SVP-3 SVP-2 SVP-7 SVP-8 SVP-9 SVP-10 SVP-11 SVP-13 SVP-12 SVP-15SVP-14 SVP-17 SVP-18 SVP-16 SVP-19 SVP-20 SVP-19 SVP-24 SVP-25 SVP-19 SVP-21 SVP-23 SVP-22 AA-1AA-1 AA-3 AA-2 AA-1 SVP-1 - SVP-9 & SVP-19 - SVP-25 SVP-10 - SVP-18 Soil-vapor sample location using Modified EPA Methods TO-3 and TO-15 Plot Adapted from Covelop Potential Development Plan Ambient air sample location using Modified EPA Methods TO-3 and TO-15 SVP sample location using Modified EPA Method TO-15 Phase II Site Plan Perimeter soil sample location using EPA Methods 8240 and 8270b Soil sample location: EPA Methods 8240 & 8270b and ICP SW-846 Method 6010C PS-1 PS-3 PS-4 PS-5 PS-1 PS-2 BS-1 BS-1BS-1 BS-2 Project Number 2162RV47 February 12, 2024 E2C Remediation Appendix A APPENDIX A Site Safety Plan for Site Investigation Activities Project Number 2162RV47 February 12, 2024 E2C Remediation A-1 APPENDIX A SITE SAFETY PLAN FOR SITE INVESTIGATION ACTIVITIES Covelop, Inc. P.O. Box 12910 San Luis Obispo, California 93406 Introduction: This Site Safety Plan (SSP) has been designed to address safety provisions needed during collection of indoor air samples and samples from soil vapor probes activities to be performed at the Covelop Site in San Luis Obispo, California (Site). Its purpose is to provide established procedures to protect all on-site personnel from direct skin contact, inhalation, or ingestion of potentially hazardous materials that may be encountered at the site. The SSP establishes personnel responsibilities, personal protective equipment standards decontamination procedures, and emergency action plans. The SSP describes means for protecting all on-site personnel from deleterious contamination or personal injury while conducting on -site activities. As described below all requirements promulgated by the California Department of Health Services will be met. Scope of Services E2C seeks to enter property described above for the purpose of ambient air sampling and soil vapor sampling activities. No installation of any features will be involved. Minimal-sized drilling equipment will be used during these activities; either/or a Geoprobe 5712 DT, or a Geoprobe 450M. During work time indoors, a PID will be used to monito r air conditions periodically. Work areas will be ‘smoking free’. As work will be conducted inside fence -controlled areas, traffic control will not be needed. However, field technicians will wear high visibility vest s during the operations. Responsibilities of Key Personnel: All personnel on site will have assigned respon sibilities. Mr. Philip Goalwin, P.G. of E2C Remediation will be the Project Manager and serve as the Site Saf ety Officer (SSO). As SSO, Mr. Goalwin will distribute copies of the SSP to on -site personnel. Personnel will be required to document their full understanding of the SSP before admission to the site. Compliance with the SSP will be monitored at all time s by the SSO. Appropriate personnel will conduct a training session to assure that all are aware of safe work practices. In the training session, personnel will be made aware of hazards at the site and will utilize Material Safety Data Sheets for informa tion on compounds to be encountered. Mr. Goalwin will also be responsible to verify that field personnel keep proper field notes, collect and secure samples, and assure sample integrity by adherence to Chain-of-Custody protocol. Project Number 2094RV47 February 12, 2024 E2C Remediation A-2 On-site employees will take reasonable precautions to avoid unforeseen hazards. After documenting understanding of the SSP, each on -site employee will be responsible for strict adherence to all points contained herein. Any deviation observed will be reported to the SSO and corre cted. On-site employees are held responsible to perform only those tasks for which they believe they are qualified. Provisions of this SSP are mandatory and personnel associated with on -site activities will adhere strictly hereto. Job Hazard Analysis: Hazards likely to be encountered on site include those commonly encountered when working in indoors and outdoors with traffic and with the type of drilling equipment used for this project. Simple precautions will reduce or eliminate risk s associated with operating any equipment. Noise control will comply with local o rdinances and personnel will wear ear plugs and/or other hearing protection when working adjace nt (within 3 feet) to any noisy source . Qualified personnel only will have any contact with sampling equipment. All on-site personnel are required to wear hard hats and steel-toed shoes when in close proximity to any operating equipment. Latex gloves will be worn by persons collecting or handling samples to prevent exposure to contaminants. Gloves will be changed between samples, and used ones discarded, to av oid cross-contamination. Proper respiratory equipment will be worn if vapor contamination levels on site exceed action levels as determined using a PID or FID. Action levels requiring respiratory apparatus will be 5 ppm, in the breathing space. Furthermore, no on-site smoking, open flame, or sparks will be permitted in order to prevent accidental ignition. Risk Assessment Summary: Exposure to chemicals anticipated on site includes the primary solvent of tetrachloroethene (PCE). Pathways of exposure for these contaminants for field personnel include dermal contact with contaminated soil, or inhalation of contaminated vapors. Use of personal protective equipment (PPE) planned for this project and following decontamination procedures of the SSP can mitigate dermal contact. Inhalation hazards can be reduced through the use of dust control measures, if warranted, and by observing action levels described in the SSP. During any operation with personnel inside the building, air quality monitoring will be initially confirmed using a PID, or FID. The primary exposure on-site is to the chemical Tetrachloroethene (PCE) and other VOCs, such as PCE breakdown products. For exposure purposes, PCE exposure criteria will prevail. Other exposure elements include arsenic, lead, Polycyclic Aromatic Compounds (PAHs), and Total Petroleum Hydrocarbons (TPH), principally TPH as motor oil (TPHmo) and TPH as diesel (TPHd). Tetrachloroethene (PCE) Tetrachloroethene (PCE) is a manufactured chemical that is widely used for dry cleaning of fabrics and for metal degreasin g. It is also used to make other chemicals and is used in some consumer products. It is a nonflammable liquid at room temperature. PCE evaporates easily into the air and has a sharp, sweet odor. Most people can smell PCE when it is present in the air a t a level of 1 ppm, although some can smell it at even lower levels. High concentrations of PCE (particularly in closed, Project Number 2094RV47 February 12, 2024 E2C Remediation A-3 poorly ventilated areas) can cause dizziness, headache, sleepiness, confusion, nausea, difficulty in speaking and walking, unconscious ness, and death. Irritation may result from repeated or extended skin contact with it. Results of animal studies, conducted with amounts much higher than those that most people are exposed to, show that PCE can cause liver and kidney damage. The chemical is known to the State of California to cause cancer. (Note: 1 part per million (ppm) equals (=) 4.05 mg/m3). • The OSHA PEL is listed as 100 parts per million (ppm). • The Cal/OSHA PEL is listed as 25 ppm. • The TLV is listed as 25 ppm. • The IDLH is listed as 500 ppm. Possible Exposure to other chemicals anticipated inside the site bui ldings include: Carbon Monoxide. Carbon Monoxide (CO) Carbon monoxide (CO) is a colorless, odorless, and tasteless gas that is slightly less dense than air. It can cause fatal poisoning. • The OSHA PEL is listed as 50 ppm. • The Cal/OSHA PEL is listed as 25 ppm. • The TLV is listed as 25 ppm. • The IDLH is listed as 1,200 ppm. PAHs (Benzo(a)pyrene): Considered the most carcinogenic PAH • The OSHA PEL is listed as 0.2 milligrams per cubic meter (mg/m3). • The Cal/OSHA PEL is listed as 0.2 mg/m3. • The TLV is listed as 0.2 mg/m3. • The IDLH is listed as 80 mg/m3. Arsenic (inorganic as As) • The OSHA PEL is listed as 0.010 mg As/m3). • The Cal/OSHA PEL is listed as 0.002 mg AS/m3. • The TLV is listed as 0.01 mg As/m3. • The IDLH is listed as 5 mg As/m3. Lead (Pb) • The OSHA PEL is listed as 0.050 mg/m3. • The Cal/OSHA PEL is listed as 0.050 mg/m3. • The TLV is listed as 0.2 mg/m3. • The IDLH is listed as 100 mg/m3. TPHmo Project Number 2094RV47 February 12, 2024 E2C Remediation A-4 • The OSHA PEL is listed as 500 ppm. • The Cal/OSHA PEL is listed as 350 mg/m3. • The TLV is listed as 0.05 mg/m3. • The IDLH is listed as 1,100 ppm. TPHd • The OSHA PEL is listed as 100 mg/m3). • The Cal/OSHA PEL is listed as 350 mg/m3. • The TLV is listed as 100 mg/m3. • The IDLH is listed as 1,100 mg/m3. Exposure Monitoring Plan: Monitoring for airborne contaminants will be performed during intrusive activities. A hydrogen flame ionization detector (FID), or Photoionization Detector (PID), each calibrated to methane in air per manufacturer’s instructions, will be used for air monitoring. The FID, or PID response to PCE, the primary chemical of concern, is 70 percent (i.e., an instrument reading of 10 ppm represents an actual concentration o f 7 ppm PCE). Routine monitoring of the breathing zone as described in the SSP will be performed to evaluate fluctuations in VOC concentration during site activities. Personal Protective Equipment: Personnel on site will have access to respirators with or ganic vapor and particulate cartridges. Replacement cartridges will be available on site as needed. When handling samples, the on-site personnel will wear latex gloves. Hard hats, safety vests and steel-toed shoes will be worn by all personnel when at t he Site. Work Zones and Security Measures: Access to the site will be restricted to authorized personnel. A set of cones, placards, or wide yellow tape, surrounding the site will define the perimeter. The On -Site Task Manager will be responsible for work area security. Decontamination Measures: Avoidance of contamination whenever possible is the best method for protection. Common sense dictates that on-site personnel avoid breathing possible vapors at well heads and avoiding impacted groundwater. All pe rsonnel will be advised to wash their hands, neck, and face with soap and water before taking a break or leaving the site. Respirators will be washed with soap and water following each day's use. Waste Management Plan: Due to the method of drilling, direct push with sample collection at only the target depths, to be utilized for this project, it is anticipated that no waste will be generated. If any waste is generated it will be properly stored in appropriate containers, such as 55-gallon drums, the waste will be properly characterized and disposed of in accordance with regulatory guidelines. General Safe Work Practices: Equipment operators and othe r on-site personnel will be briefed each day in "tailgate" meetings as to the day's goals and equipment to be used. Anticipated contaminants Project Number 2094RV47 February 12, 2024 E2C Remediation A-5 and emergency procedures will be reviewed. Appropriate personal protective equipment will be put on and verified correct by SSO, including respirator fit. Training Requirements: The SSO representative will conduct a pre-site training session which will include all points of MSDS forms, contaminant properties, warning signs, health hazard data, risk from exposure, and emergency first aid. The SSO will assure that everyone fully understands site hazards. Medical Surveillance Program: According to CFR 29, 1910.120, Paragraph (f), employees who wear respirators 30 days or more during one year or who have been exposed to hazardous substances or health hazards above established permissible exposure limits are required to be monitored medically. All site personnel will be required to have had a complete chemical physical within the past year. Record Keeping: Documentation will be kept on personnel exposed to contaminant hazards on the job site according to OSHA regulations. These will include documentation that employees received training on the SSP, respiratory protection, MSDS forms, and all emergency procedures. These will be reviewed during the pre-site training meeting. Exposure records on each job will be kept for 30 years to meet requirements. Included will be the names and social security number of employees, medical evaluations, on-the-job logs from entry to exit, first aid administered, visits on site by outside persons, and personal air monitoring records. Contingency Plans: In the event of accident, injury, or other emergency, the Task Manager, Project Manager, or other person will notify appropriate government agencies or individuals as follows: Police, Fire, or Ambulance Emergency 911 See attached GoogleEarth Aerial Photo for directions to: Sierra Vista Regional Medical Center 1010 Murray Street San Luis Obispo, CA 93405 Phone: (805) 546-7600 Project Number 2094RV47 February 12, 2024 E2C Remediation A-6 Emergency Numbers for E2C Remediation Personnel: Mr. Philip Goalwin, P.G. (President) of E2C will serve as Project Manager and the Emergency Contact and he may be contacted by calling the following numbers: Office Phone: (916) 782-8700, or Cell Phone: (661) 599-1470. Project Number 2162RV47 February 12, 2024 E2C Remediation Appendix B APPENDIX B Sampling and Analysis Plan Project Number 2162RV47 February 12, 2024 E2C Remediation B-1 APPENDIX B - SAMPLING AND ANALYSIS PLAN The following sections detail the methods and procedures that will be followed to collect soil-vapor samples and soil confirmation samples for the subject property. B.1 Field Activities Advancement of soil borings is presented in the above Workplan. B.2 Soil-Gas Investigation Reports Soil-vapor data, including a discussion of field operations, deviations from the approved Workplan, data inconsistencies, and other significant operational details will be documented in the Report of Findings (ROF). The ROF will include appropriate data plots and summary tables for soil -vapor and soil analytical results. The results will conform to the Regional Water Quality Control Board’s ESL Guidelines (RWQCB, ESL (see Appendix C for copy.) E2C will also provide legible copies of field and laboratory notes or logs, all analytical results and Quality Assurance/Quality Control (QA/QC) information, including tables and explanations of procedures, results, corrective actions and effect on the data. B.3 Soil-Gas Vapor Collection As discussed above in the Workplan, 25 soil-vapor samples will be collected. In addition, three (ambient air samples will also be collected). B.4 Soil-Gas Monitoring Parameters B.4.a Equilibration Time A soil-vapor sampling will take place immediately after the target depth of five (5) is reached as detailed in the Workplan above. B.4.b Purge Volume To ensure that stagnant or ambient air is removed from the sampling system and to assure samples collected are representative of subsurface conditions, E2C will purge three (3) casing volumes from each SVP boring. Based on a well diameter of 2.25- inches, a probe depth of 5 feet, a porosity of 30%, E2C estimates that one (1) casing volume will be approximately 849 cubic-centimeters (cu-cm). Therefore, three (3) casing volumes would equate to approximately 1,750 cu-cm. At a purge rate of 200 ml/min, purging will be accomplished in approximately nine (9) minutes. E2C will use a purge pump, calibrated to pump 200 milliliters per minute (ml/min). The purge pump will not be used for sampling purposes. B.5 Leak Test Leakage during soil gas sampling may dilute samples with ambient air and may produce results that underestimate actual site concentrations or contaminate the sample with external contaminants. Leak tests will be conducted to determine whether leakage is present (e.g., the leak check compound is detected and confirmed in the test sample after its application). B.5.a Leak Test Frequency Leak tests will be conducted at every SVP well location. Project Number 2162RV47 February 12, 2024 E2C Remediation B-2 B.5.b Leak Check Compounds The tracer compound tetrafluoroethane will be used as the leak check compound. A detection limit (DL) of 10 g/L or less will be achieved. B.5.c Leak Test Protocol The leak check compound (tetrafluoroethane) will be enclosed within a tent-type structure at each potential leak point to keep the potential leak areas at saturated concentrations throughout the test. A.5.d Leak Test Analytical The chemical analysis of the soil -gas sample will include an analysis for the leak check compound. If a leak check compound is detected in the sample, the cause of the leak will be evaluated and, if required, resampling at that location may be required. B.6 Purge/Sample Flow Rate The sampling and purging flow rate of 1 00 ml/min to 200 ml/min was selected to minimize compound partitioning during soil -gas sampling. Samples will not be collected if field conditions, such as rainfall, irrigation, fine grained sediments, or drilling conditions affect the ability to collect soil-gas samples. If no-flow or low-flow conditions are caused by wet soils, the soil gas sampling will cease. In addition, the soil-gas sampling will not be conducted during or immediately after a significant rain event (e.g., 1/2 inch or greater), or onsite watering. If low flow conditions are determined to be from a specific lithology, a new SVP well will be installed at a new lateral location selected after evaluation of the site lithologic logs and/or in consultation with PG&E. If refusal occurs during advancement of an SVP boring, an alternate, nearby SVP location will be selected. B.6.a No-Flow/Low-Flow Rates The purging or sampling flow rate of 100 ml/min to 200 ml/min is expected to be attainable in the lithology adjacent to the SVP well. To evaluate lithologic conditions adjacent to the SVP well where no-flow or low-flow conditions are encountered, a vacuum gauge or similar device will be used between the soil -gas sample tubing and the soil-gas extraction devices. A gas tight syringe may als o be used to qualitatively determine if a high vacuum soil condition exists, which is based on whether suction/resistance is felt while the plunger is being withdrawn. B.6.b Purging/Sampling Rates E2C will conduct purging/sampling at rates between 100 to 200 ml/min to limit stripping, prevent ambient air from diluting the soil-gas samples, and to reduce the variability of purging rates. The low flow purge rate increases the likelihood that representative samples may be collected. The purge/sample rate may be modified based on conditions encountered in individual SVP wells. Modified rates will be documented in the report of findings. B.7 Soil Gas Sampling Protocol After the SVP well is adequately purged, a soil -gas sample will be collected. A Summa canister equipped with a flow restrictor will be used at each location. A flow regulator will be placed between the probe and the Summa canister to ensure the canister is filled at the proper flow rate. Summa canisters will be stored in such a way as to Project Number 2162RV47 February 12, 2024 E2C Remediation B-3 avoid exposure to sunlight, and the samples will be analyzed within the prescribed hold time. B.7.a Sample Container Cleanliness and Decontamination Prior to its use at a site, each sample container will be assured clean by the analytical laboratory. New containers will be determined to be free of contaminants (e.g., lubricants) by either the supplier or the analytical laboratory; and the effectiveness of decontamination (and to detect any possible interference from ambient air) of reused/recycled containers will be verified with method blanks. After each use, reusable sample containers will be properly decontaminated. Glass syringes or bulbs will be disassembled and baked at 240º C for a minimum of 15 minutes or at 120º C for a minimum of 30 minutes, or be decontaminated by an equivalent method. Plastic syringes, if used, will be used only once and then properly discarded. E2C personnel will connect new Teflon® tubing to the top of the existing SVP well tubing, and will utilize a 60 cubic centimeter (cc) sy ringe and a 3-way valve to purge the previously determined purge volume. The purge volume will be calculated based on one (1) cc/ft for 1/8” outside diameter (OD) tubing and five (5) cc/ft for ¼” OD tubing. The leak compound will be placed in tent -type structures at the connections on the sampling train, using a paper towel moistened with the leak compound wrapped with plastic sheeting taped tightly at each end to seal the structure. The sampling procedure will then commence as detailed above. B.7.b Documentation of SVP Well Sampling Protocol E2C personnel will document the SVP well sampling, and will include the sample identification, the probe location, date and time of sample collection, sampling depth, identity of on-Site personnel, weather conditions, sampling methods and devices, soil- gas purge volumes, volume of soil gas extracted, vacuum of canisters before and after samples are collected, chain of custody protocols. B.7.c Chain of Custody Records A chain of custody form will be completed to mai ntain the custodial integrity of samples. Probe installation times and sample collection times will be included on the chain of custody form, and in the report of findings. B.8 Analysis of Soil-Gas Samples B.8.a Quality Assurance/Quality Control (QA/QC) The soil-gas analytical laboratory will comply with the project Quality Assurance Project Plan (QAPP) and will follow the QA/QC requirements of the most current ASGI and the employed EPA Method. If there is any inconsistency between the ASGI , the EPA Method and/or the ESL, the most restrictive and specific requirements will prevail. The analytical data will be consistent with the Data Quality Objectives (DQOs) established for the project. Field QC samples will be collected, stored, transported and analyzed in a manner consistent with site samples. QA/QC samples will be collected to support the sampling activity. Method blanks will be used to verify the effectiveness of decontamination procedures, as specified above, and to detect any possible interference from ambient air. For off-site shipments, a minimum of one (1) trip blank per day will be collected and analyzed for the target Project Number 2162RV47 February 12, 2024 E2C Remediation B-4 compounds. Trip blanks will contain laboratory grade ultra-pure air. The trip blanks will be prepared to evaluate if the shipping and handling procedures are introducing contaminants into the samples, and to determine if cross contamination in the form of VOC migration has occurred between the collected VOC samples. Trip blank containers and media will be the same as site s amples. At least one (1) duplicate sample per laboratory per day will be collected. Up to two (2) duplicate samples will also be collected in separate sample containers, at the same location and depth. Duplicate samples will be collected immediately af ter the original sample. Laboratory control samples (LCS) and dilution procedure duplicates (DPD) will handled and analyzed in accordance with the most recent ASGI. E2C will be prepared to collect split samples (for analysis by another laboratory) with the PG&E, if requested. B.8.b Laboratory Certification and Analysis E2C will have the soil-vapor and ambient air samples analyzed by Modified EPA Method TO-15 GC/MS for Volatile Organics and/or Modified EPA Method TO-3 for Volatile Hydrocarbons at a certified analytical laboratory. E2C will have the perimeter and building interior soil samples analyzed by EPA Method 8240 for volatile organics and by EPA Method 8270 for semi -volatile compounds (includes PCBs other compounds identified during the MGP previou s site investigations) and by SW-846 Method 6010C for Arsenic and Lead by Enthalpy. B.8.c Detection Limits for Target Compounds Analytical equipment calibration will be in accordance with the most current ASGI - ESL. Detection limits will be such that the analytical data can be compared to the ESL’s (RWQCB, 2019) for evaluation of potential vapor intrusion into air allow able will be met, as follows: CHEMICAL Region 2 ESL’s Micrograms per cubic meter (g/m3) Parts per billion – volume (ppbV) Micrograms per liter (g/L) PCE 2.1E+02 30.982 0.21 TCE 3.0E+02 55.861 0.3 Cis-1,2-DCE 3.7E+03 933.79 3.7 Trans-1,2-DCE 3.1E+04 7,823.6 31 Naphthalene 3.6E+01 6.8712 0.036 1,2-DCA 5.8E+01 14.339 0.058 Benzene 4.2E+01 13.155 0.042 MtBE 4.7E+03 1,304.4 4.7 TPH-G 5.0E+04 12,225 50 Toluene 1.6E+05 42,484 160 Project Number 2162RV47 February 12, 2024 E2C Remediation B-5 Xylenes 5.2E+04 11,983 52 Ethyl-benzene 4.9E+02 96,731 0.49 Arsenic 3.9E-01 mg/Kg Residential Shallow Soil <3m Lead 2.0E+02 mg/Kg The DL for leak check compounds will be 10 g/L or less. For results with a high DL reported (e.g., due to matrix interference or dilution), the laboratory will provide a written explanation. Re-sampling and analyses will be conducted at the appropriate DL for a specific compound if requested by PG&E. Note: ppbV stands for parts per billion by volume. B.8.d Sample Handling Exposure to light and changes in temperature and pressure will accelerate sample degradation. To protect sample integrity soil -gas samples will not be chilled, will not be subjected to changes in ambient pressure, and shipping of sample containers by air will be avoided, if possible. If condensation is observed in the sample container, the sample will be discarded and a new sample will be collected. B.8.e Holding Time All soil-vapor samples will be collected in Summa canisters and will be analyzed at Enthalpy Analytical Laboratories, Inc. in Orange, California (Enthalpy) within 2 weeks after collection. All perimeter soil samples will be analyzed by Enthalpy in accordance with EPA analytical test holding time mandates. B.8.f Analytical Methods All soil-vapor VOC samples will be analyzed using only a Gas Chromatograph/Mass Spectrometer (GC/MS) by Modified EPA Methods TO-15, TO-3, or equivalents. All perimeter and building interior soil samples will be analyzed using only a Gas Chromatograph/Mass Spectrometer (GC/MS) by EPA Method 8240 for volatile organics and by EPA Method 8270b for semi -volatile compounds (includes PCBs, polycyclic aromatic hydrocarbons (PAHs) and by SW-846 Method 6010C for Arsenic and Lead. B.8.g Target Compounds The ASGI (dated February 25, 1997) includes twenty -three (23) primary and four (4) other target VOCs. All quantifiable results will be reported. The estimated results of all Tentatively Identified Compounds (TICs), or non-AGSI-ESL-targeted compounds detected, will be included in the status reports. If TICs, or non-ASGI targeted compounds are identified, E2C will consult with the PG&E to determine whether additional action is required (e.g., running additional standards to quan tify TICs, or non-ASGI compounds) and whether the use of these estimated data for risk evaluation is appropriate. All quantifiable results of Leak Check Compounds will be reported as specified in above. Project Number 2162RV47 February 12, 2024 E2C Remediation Appendix C APPENDIX C RWQCB ESLs 2016 ESLs, for 2019 Revision go to: https://www.waterboards.ca.gov/sanfranciscobay/water_issues/programs/sitecleanu pprogram.html#screeninglevelsandguidance Chemicals CAS No.Groundwater (µg/L) Soil (mg/kg) Subslab2 / Soil Gas (µg/m3) Indoor Air (µg/m3) Acenaphthene 83-32-9 2.0E+01 1.6E+01 2.6E+05 5.1E+02 Acenaphthylene 208-96-8 3.0E+01 1.3E+01 -- -- Acetone 67-64-1 1.5E+03 5.0E-01 1.5E+07 3.1E+04 Aldrin 309-00-2 1.4E-04 3.6E-02 2.9E-01 5.7E-04 Anthracene 120-12-7 7.3E-01 2.8E+00 -- -- Antimony 7440-36-0 6.0E+00 3.1E+01 -- -- Arsenic 7440-38-2 1.0E+01 6.7E-02 -- -- Barium 7440-39-3 1.0E+03 3.0E+03 -- -- Benzene 71-43-2 1.0E+00 4.4E-02 4.8E+01 9.7E-02 Benz(a)anthracene 56-55-3 2.7E-02 1.6E-01 -- -- Benzo(b)fluoranthene 205-99-2 1.2E-02 1.6E-01 4.6E+00 9.2E-03 Benzo(k)fluoranthene 207-08-9 1.7E-02 1.6E+00 4.6E+00 9.2E-03 Benzo(g,h,i)perylene 191-24-2 1.0E-01 2.5E+00 -- -- Benzo(a)pyrene 50-32-8 1.4E-02 1.6E-02 -- -- Beryllium 7440-41-7 2.7E+00 4.2E+01 -- -- 1,1-Biphenyl 92-52-4 5.0E-01 6.5E-01 2.1E+02 4.2E-01 Bis(2-chloroethyl) ether 111-44-4 6.3E-03 8.0E-05 2.0E+00 4.0E-03 Bis(2-chloroisopropyl) ether 108-60-1 3.6E-01 3.9E-03 1.4E+02 2.8E-01 Bis(2-ethylhexyl) phthalate 117-81-7 4.0E+00 3.9E+01 -- -- Boron 7440-42-8 1.6E+00 1.6E+04 -- -- Bromodichloromethane 75-27-4 8.0E+01 5.2E-01 3.8E+01 7.6E-02 Bromoform (Tribromomethane) 75-25-2 8.0E+01 1.7E+00 1.3E+03 2.6E+00 Bromomethane 74-83-9 7.5E+00 3.0E-01 2.6E+03 5.2E+00 Cadmium (soil) 7440-43-9 -- 3.9E+01 -- -- Cadmium (water) 7440-43-9 2.5E-01 -- -- -- Carbon tetrachloride 56-23-5 2.2E-01 4.8E-02 3.3E+01 6.7E-02 Chlordane 57-74-9 5.9E-04 4.8E-01 4.1E+00 8.3E-03 p -Chloroaniline 106-47-8 3.6E-01 3.9E-03 ---- Chlorobenzene 108-90-7 2.5E+01 1.5E+00 2.6E+04 5.2E+01 Chloroethane 75-00-3 1.6E+01 1.1E+00 5.2E+06 1.0E+04 Chloroform 67-66-3 2.3E+00 6.8E-02 6.1E+01 1.2E-01 Chloromethane 74-87-3 1.9E+02 2.9E+01 4.7E+04 9.4E+01 2-Chlorophenol 95-57-8 1.8E-01 1.2E-02 9.5E+03 1.9E+01 Chromium (total)7440-47-3 5.0E+01 ------ Chromium III 16065-83-1 1.8E+02 1.2E+05 ---- Chromium VI 18540-29-9 1.0E+01 3.0E-01 ---- Chrysene 218-01-9 4.9E-02 3.8E+00 4.6E+01 9.2E-02 Cobalt 7440-48-4 3.0E+00 2.3E+01 ---- Copper 7440-50-8 3.1E+00 3.1E+03 ---- Cyanide 57-12-5 1.0E+00 3.6E-03 4.2E+02 8.3E-01 Dibenz(a,h)anthracene 53-70-3 3.4E-03 1.6E-02 ---- Dibromochloromethane 124-48-1 4.6E+01 3.8E+00 ---- 1,2-dibromo-3-chloropropane 96-12-8 2.0E-01 4.5E-03 8.4E-02 1.7E-04 1,2-Dibromoethane 106-93-4 5.0E-02 3.3E-04 2.3E+00 4.7E-03 1,2-Dichlorobenzene 95-50-1 1.4E+01 1.6E+00 1.0E+05 2.1E+02 1,3-Dichlorobenzene 541-73-1 6.5E+01 7.4E+00 ---- 1,4-Dichlorobenzene 106-46-7 5.0E+00 5.9E-01 1.3E+02 2.6E-01 3,3-Dichlorobenzidine 91-94-1 4.6E-02 1.2E-02 ---- Dichlorodiphenyldichloroethane (DDD) 72-54-8 8.4E-04 2.7E+00 ---- Dichlorodiphenyldichloroethene (DDE) 72-55-9 5.9E-04 1.9E+00 1.4E+01 2.9E-02 Dichlorodiphenyltrichloroethane (DDT) 50-29-3 5.9E-04 1.9E+00 1.4E+01 2.9E-02 1,1-Dichloroethane 75-34-3 5.0E+00 2.0E-01 8.8E+02 1.8E+00 1,2-Dichloroethane 107-06-2 5.0E-01 4.5E-03 5.4E+01 1.1E-01 1,1-Dichloroethene 75-35-4 3.2E+00 5.5E-01 3.7E+04 7.3E+01 cis-1,2-Dichloroethene 156-59-2 6.0E+00 1.9E-01 4.2E+03 8.3E+00 trans-1,2-Dichloroethene 156-60-5 1.0E+01 6.7E-01 4.2E+04 8.3E+01 2,4-Dichlorophenol 120-83-2 3.0E-01 3.0E-01 7.0E+05 1.4E+03 1,2-Dichloropropane 78-87-5 5.0E+00 1.2E-01 1.4E+02 2.8E-01 1,3-Dichloropropene 542-75-6 5.0E-01 5.9E-02 8.8E+01 1.8E-01 Dieldrin 60-57-1 1.4E-04 1.7E-04 3.1E-01 6.1E-04 Tier 1 ESLs Based on a generic conceptual site model designed for use at most sites1 Feb. 2016 (Rev. 3) 1 of 15 Tier 1 ESL Chemicals CAS No.Groundwater (µg/L) Soil (mg/kg) Subslab2 / Soil Gas (µg/m3) Indoor Air (µg/m3) Based on a generic conceptual site model designed for use at most sites1 Feb. 2016 (Rev. 3) Diethyl phthalate 84-66-2 1.5E+00 3.5E-02 ---- Dimethyl phthalate 131-11-3 1.5E+00 3.5E-02 ---- 2,4-Dimethylphenol 105-67-9 1.0E+02 6.7E-01 5.0E+02 1.0E+00 2,4-Dinitrophenol 51-28-5 3.9E+01 1.1E-01 ---- 2,4-Dinitrotoluene 121-14-2 2.4E-01 1.8E-03 ---- 1,4-Dioxane 123-91-1 3.8E-01 2.3E-04 1.8E+02 3.6E-01 Dioxin (2,3,7,8-TCDD)1746-01-6 1.4E-08 4.9E-06 ---- Endosulfan 115-29-7 8.7E-03 4.6E-03 ---- Endrin 72-20-8 2.3E-03 6.5E-04 ---- Ethylbenzene 100-41-4 1.3E+01 1.4E+00 5.6E+02 1.1E+00 Fluoranthene 206-44-0 8.0E+00 6.0E+01 ---- Fluorene 86-73-7 3.9E+00 8.9E+00 ---- Heptachlor 76-44-8 2.1E-04 7.7E-04 1.1E+00 2.2E-03 Heptachlor epoxide 1024-57-3 1.1E-04 4.2E-04 5.4E-01 1.1E-03 Hexachlorobenzene 118-74-1 7.7E-04 3.4E-01 2.8E+00 5.5E-03 Hexachlorobutadiene 87-68-3 1.4E-01 6.8E-01 6.4E+01 1.3E-01 -Hexachlorocyclohexane (Lindane)58-89-9 1.6E-02 9.8E-03 ---- Hexachloroethane 67-72-1 3.3E-01 1.1E+00 1.3E+02 2.6E-01 Indeno(1,2,3-c,d)pyrene 193-39-5 3.4E-02 1.6E-01 ---- Lead 7439-92-1 2.5E+00 8.0E+01 ---- Mercury (elemental)7439-97-6 5.1E-02 1.3E+01 ---- Methoxychlor 72-43-5 3.0E-03 1.9E+01 ---- Methylene chloride 75-09-2 5.0E+00 7.7E-02 5.1E+02 1.0E+00 Methyl ethyl ketone 78-93-3 5.6E+03 5.1E+00 2.6E+06 5.2E+03 Methyl isobutyl ketone 108-10-1 1.2E+02 2.8E+00 2.1E+05 4.2E+02 Methyl mercury 22967-92-6 3.0E-03 6.3E+00 ---- 2-Methylnaphthalene 91-57-6 2.1E+00 2.5E-01 3.4E+04 6.8E+01 Methyl tertiary butyl ether (MTBE) 1634-04-4 5.0E+00 2.3E-02 5.4E+03 1.1E+01 Molybdenum 7439-98-7 1.0E+02 3.9E+02 ---- Naphthalene 91-20-3 1.7E-01 3.3E-02 4.1E+01 8.3E-02 Nickel 7440-02-0 8.2E+00 8.6E+01 ---- Pentachlorophenol 87-86-5 1.0E+00 1.0E+00 ---- Perchlorate 7790-98-9 6.0E+00 5.5E+01 ---- Phenanthrene 85-01-8 4.6E+00 1.1E+01 2.8E+04 5.5E+01 Phenol 108-95-2 5.0E+00 7.6E-02 7.8E+04 1.6E+02 Polychlorinated biphenyls (PCBs) 1336-36-3 1.7E-04 2.5E-01 2.5E+00 4.9E-03 Pyrene 129-00-0 2.0E+00 8.5E+01 ---- Selenium 7782-49-2 5.0E+00 3.9E+02 ---- Silver 7440-22-4 1.9E-01 3.9E+02 ---- Styrene 100-42-5 1.0E+01 1.5E+00 4.7E+05 9.4E+02 tert-Butyl alcohol 75-65-0 1.2E+01 7.5E-02 ---- 1,1,1,2-Tetrachloroethane 630-20-6 5.7E-01 1.0E-02 1.9E+02 3.8E-01 1,1,2,2-Tetrachloroethane 79-34-5 1.0E+00 1.8E-02 2.4E+01 4.8E-02 Tetrachloroethene 127-18-4 3.0E+00 4.2E-01 2.4E+02 4.8E-01 Thallium 7440-28-0 2.0E+00 7.8E-01 ---- Toluene 108-88-3 4.0E+01 2.9E+00 1.6E+05 3.1E+02 Toxaphene 8001-35-2 2.0E-04 4.2E-04 4.1E+00 8.3E-03 TPH gasoline --1.0E+02 1.0E+02 5.0E+04 1.0E+02 TPH Stoddard solvent --1.0E+02 1.0E+02 6.8E+04 1.4E+02 TPH diesel --1.0E+02 2.3E+02 6.8E+04 1.4E+02 TPH motor oil --See Note 3 5.1E+03 ---- 1,2,4-Trichlorobenzene 120-82-1 5.0E+00 1.5E+00 1.0E+03 2.1E+00 1,1,1-Trichloroethane 71-55-6 6.2E+01 7.8E+00 5.2E+05 1.0E+03 1,1,2-Trichloroethane 79-00-5 5.0E+00 7.0E-02 8.8E+01 1.8E-01 Trichloroethene 79-01-6 5.0E+00 4.6E-01 2.4E+02 4.8E-01 2,4,5-Trichlorophenol 95-95-4 1.1E+01 1.8E-01 ---- 2,4,6-Trichlorophenol 88-06-2 6.3E-01 2.1E-01 1.5E+02 3.0E-01 Vanadium 7440-62-2 1.9E+01 3.9E+02 ---- Vinyl chloride 75-01-4 6.1E-02 8.2E-03 4.7E+00 9.5E-03 Xylenes 1330-20-7 2.0E+01 2.3E+00 5.2E+04 1.0E+02 Zinc 7440-66-6 8.1E+01 2.3E+04 ---- Notes: 1 - See User's Guide Chapter 2. Input settings are: Land Use = Residential; Groundwater Use = Drinking Water Resource; MCL Priority over Risk-Based Levels = Yes; Intact Building Slab = Yes; Groundwater Depth = Shallow; Soil Type = Sand Scenario; Soil Exposure Depth = Shallow. 3 - TPH motor oil is not soluble. TPH motor oil detections in water most likely are petroleum degradates or less likely NAPL. If the detections are degradates, add TPH motor oil and TPH diesel results and compare to TPH diesel criterion. See User's Guide Chapter 9 for further information. 2 - Use of the subslab ESLs for the subslab line of evidence assumes an intact slab. See User's Guide Appendix B. 2 of 15 Tier 1 ESL MCL PriorityHumanHealthRisk BasedOnlyFresh WaterEcotox Saltwater EcotoxSeafood Ingestion Human HealthRes. Com/Ind Res:Sand ScenarioRes:Fine to CoarseScenarioCom/Ind:SandScenarioCom/Ind: Fine to Coarse ScenarioDrinking Water Non-Drinking Water Acenaphthene 83-32-9 5.3E+02 5.3E+02 2.3E+01 4.0E+01 2.7E+03 -- -- -- -- -- -- 2.1E+03 2.0E+01 2.0E+02 2.0E+01 Nuis/OdorAcenaphthylene 208-96-8 -- -- -- 3.0E+01 -- -- -- -- -- -- -- 2.0E+03 -- -- 3.0E+01 Dir ExpAcetone 67-64-1 1.4E+04 1.4E+04 1.5E+03 -- -- 3.4E+07 2.9E+08 4.5E+07 1.4E+08 3.7E+08 -- 5.0E+04 2.0E+04 2.0E+05 1.5E+03 EToxAldrin 309-00-2 9.2E-04 9.2E-04 3.0E-01 1.3E-01 1.4E-04 -- -- -- -- -- -- 8.5E+00 1.7E+01 1.7E+02 1.4E-04 EToxAnthracene 120-12-7 1.8E+03 1.8E+03 7.3E-01 -- 1.1E+05 -- -- -- -- -- -- 2.2E+01 -- -- 7.3E-01 EToxAntimony 7440-36-0 6.0E+00 7.8E+00 3.0E+01 5.0E+02 4.3E+03 -- -- -- -- -- -- 5.0E+04 -- -- 6.0E+00 Dir ExpArsenic 7440-38-2 1.0E+01 4.0E-03 1.5E+02 3.6E+01 -- -- -- -- -- -- -- 5.0E+04 -- -- 1.0E+01 Dir ExpBarium 7440-39-3 1.0E+03 2.0E+03 -- -- -- -- -- -- -- -- -- 5.0E+04 -- -- 1.0E+03 Dir ExpBenzene 71-43-2 1.0E+00 1.5E-01 4.6E+01 3.5E+02 7.1E+01 1.1E+00 9.7E+00 1.4E+00 3.0E+01 1.2E+01 2.6E+02 5.0E+04 1.7E+02 2.0E+04 1.0E+00 Dir ExpBenz(a)anthracene 56-55-3 3.4E-02 3.4E-02 2.7E-02 -- 4.9E-02 -- -- -- -- -- -- 5.0E+00 -- -- 2.7E-02 EToxBenzo(b)fluoranthene 205-99-2 1.2E-02 1.2E-02 -- -- 4.9E-02 -- -- -- -- -- -- 7.0E+00 -- -- 1.2E-02 Dir ExpBenzo(k)fluoranthene 207-08-9 1.7E-02 1.7E-02 3.7E+00 -- 4.9E-02 -- -- -- -- -- -- 4.0E-01 -- -- 1.7E-02 Dir ExpBenzo(g,h,i)perylene 191-24-2 -- -- 1.0E-01 -- -- -- -- -- -- -- -- 1.3E-01 -- -- 1.0E-01 EToxBenzo(a)pyrene 50-32-8 2.0E-01 3.4E-03 1.4E-02 -- 4.9E-02 -- -- -- -- -- -- 1.9E+00 -- -- 1.4E-02 EToxBeryllium 7440-41-7 4.0E+00 1.0E+00 2.7E+00 -- -- -- -- -- -- -- -- 5.0E+04 -- -- 2.7E+00 ETox1,1-Biphenyl 92-52-4 8.3E-01 8.3E-01 1.4E+01 -- -- -- -- -- -- -- -- 3.8E+03 5.0E-01 5.0E+00 5.0E-01 Nuis/OdorBis(2-chloroethyl) ether 111-44-4 6.3E-03 6.3E-03 6.1E+01 -- 1.4E+00 -- -- -- -- -- -- 5.0E+04 3.6E+02 3.6E+03 6.3E-03 Dir ExpBis(2-chloroisopropyl) ether 108-60-1 3.6E-01 3.6E-01 6.1E+01 -- 1.7E+05 -- -- -- -- -- -- 5.0E+04 3.2E+02 3.2E+03 3.6E-01 Dir ExpBis(2-ethylhexyl) phthalate 117-81-7 4.0E+00 5.6E+00 3.2E+01 -- 5.9E+00 -- -- -- -- -- -- 6.5E+02 -- -- 4.0E+00 Dir ExpBoron 7440-42-8 1.0E+03 1.0E+03 1.6E+00 -- -- -- -- -- -- -- -- 5.0E+04 -- -- 1.6E+00 EToxBromodichloromethane 75-27-4 8.0E+01 1.2E-01 1.1E+03 3.2E+03 -- -- -- -- -- -- -- 5.0E+04 -- -- 8.0E+01 Dir ExpBromoform (Tribromomethane) 75-25-2 8.0E+01 2.9E+00 1.1E+03 3.2E+03 3.6E+02 -- -- -- -- -- -- 5.0E+04 5.1E+02 5.1E+03 8.0E+01 Dir ExpBromomethane 74-83-9 7.5E+00 7.5E+00 1.6E+02 3.2E+03 4.0E+03 3.6E+01 3.0E+02 4.3E+01 6.5E+03 3.7E+02 5.5E+03 5.0E+04 -- -- 7.5E+00 Dir ExpCadmium (water) 7440-43-9 5.0E+00 4.0E-02 2.5E-01 9.3E+00 -- -- -- -- -- -- -- 5.0E+04 -- -- 2.5E-01 EToxCarbon tetrachloride 56-23-5 5.0E-01 1.0E-01 2.4E+02 3.2E+03 4.4E+00 2.2E-01 1.9E+00 2.7E-01 7.9E+00 2.4E+00 6.9E+01 5.0E+04 5.2E+02 5.2E+03 2.2E-01 Dir ExpChlordane57-74-9 1.0E-01 1.3E-02 4.3E-03 4.0E-03 5.9E-04 -- -- -- -- -- -- 2.8E+01 2.5E+00 2.5E+01 5.9E-04 EToxp-Chloroaniline106-47-8 3.6E-01 3.6E-01 5.0E+00 -- -- -- -- -- -- -- -- 5.0E+04 -- -- 3.6E-01 Dir ExpChlorobenzene108-90-7 7.0E+01 7.0E+01 2.5E+01 6.5E+01 2.1E+04 1.4E+03 1.2E+04 1.7E+03 3.1E+04 1.4E+04 2.6E+05 5.0E+04 5.0E+01 5.0E+02 2.5E+01 EToxChloroethane75-00-3 2.1E+04 2.1E+04 -- -- -- 4.7E+04 4.0E+05 5.7E+04 1.4E+06 4.8E+05 1.2E+07 5.0E+04 1.6E+01 1.6E+02 1.6E+01 Nuis/OdorChloroform67-66-3 8.0E+01 2.3E-01 6.2E+02 3.2E+03 4.7E+02 2.3E+00 2.0E+01 2.8E+00 5.4E+01 2.5E+01 4.7E+02 5.0E+04 2.4E+03 2.4E+04 2.3E+00 Dir ExpChloromethane74-87-3 1.9E+02 1.9E+02 1.1E+03 3.2E+03 -- 4.4E+02 3.7E+03 5.3E+02 1.3E+04 4.4E+03 1.1E+05 5.0E+04 -- -- 1.9E+02 Dir Exp2-Chlorophenol95-57-8 9.1E+01 9.1E+01 4.4E+02 -- 4.0E+02 -- -- -- -- -- -- 5.0E+04 1.8E-01 1.8E+00 1.8E-01 Nuis/OdorBasisSummary of Groundwater ESLs (µg/L)Aquatic Habitat GoalLevels(Table GW-2)Direct ExposureHuman HealthRisk Levels(Table GW-1)Odor NuisanceLevels(Table GW-5)Gross Contam-ination Levels (GW-4)Groundwater Vapor Intrusion Human Health Risk Levels(Table GW-3)ShallowGroundwaterDeep GroundwaterGWTier 1ESLFeb. 2016 (Rev. 3)ChemicalsCAS No.3 of 15GW Summary MCL PriorityHumanHealthRisk BasedOnlyFresh WaterEcotox Saltwater EcotoxSeafood Ingestion Human HealthRes. Com/Ind Res:Sand ScenarioRes:Fine to CoarseScenarioCom/Ind:SandScenarioCom/Ind: Fine to Coarse ScenarioDrinking Water Non-Drinking Water BasisSummary of Groundwater ESLs (µg/L)Aquatic Habitat GoalLevels(Table GW-2)Direct ExposureHuman HealthRisk Levels(Table GW-1)Odor NuisanceLevels(Table GW-5)Gross Contam-ination Levels (GW-4)Groundwater Vapor Intrusion Human Health Risk Levels(Table GW-3)ShallowGroundwaterDeep GroundwaterGWTier 1ESLFeb. 2016 (Rev. 3)ChemicalsCAS No.Chromium (total)7440-47-3 5.0E+01 -- 1.8E+02 -- -- -- -- -- -- -- -- 5.0E+04 -- -- 5.0E+01 Dir ExpChromium III16065-83-1 2.2E+04 2.2E+04 1.8E+02 1.0E+03 -- -- -- -- -- -- -- 5.0E+04 -- -- 1.8E+02 EToxChromium VI18540-29-9 1.0E+01 2.0E-02 1.1E+01 5.0E+01 -- -- -- -- -- -- -- 5.0E+04 -- -- 1.0E+01 Dir ExpChrysene218-01-9 1.7E-01 1.7E-01 3.5E-01 -- 4.9E-02 -- -- -- -- -- -- 8.0E-01 -- -- 4.9E-02 EToxCobalt7440-48-4 6.0E+00 6.0E+00 3.0E+00 -- -- -- -- -- -- -- -- 5.0E+04 -- -- 3.0E+00 EToxCopper7440-50-8 1.0E+03 3.0E+02 9.0E+00 3.1E+00 -- -- -- -- -- -- -- 5.0E+04 1.0E+03 -- 3.1E+00 Dir ExpCyanide57-12-5 1.5E+02 1.5E+00 5.2E+00 1.0E+00 2.2E+05 -- -- -- -- -- -- 5.0E+04 1.7E+02 1.7E+03 1.0E+00 Dir ExpDibenz(a,h)anthracene53-70-3 3.4E-03 3.4E-03 7.5E+00 -- 4.9E-02 -- -- -- -- -- -- 2.5E-01 -- -- 3.4E-03 Dir ExpDibromochloromethane124-48-1 8.0E+01 7.0E-01 1.1E+03 3.2E+03 4.6E+01 -- -- -- -- -- -- 5.0E+04 -- -- 4.6E+01 ETox1,2-dibromo-3-chloropropane 96-12-8 2.0E-01 3.0E-04 -- -- -- -- -- -- -- -- -- 5.0E+04 1.0E+01 1.0E+02 2.0E-01 Dir Exp1,2-Dibromoethane106-93-4 5.0E-02 7.5E-03 1.4E+03 -- -- 8.5E-01 7.4E+00 1.1E+00 8.4E+00 9.4E+00 7.3E+01 5.0E+04 -- -- 5.0E-02 Dir Exp1,2-Dichlorobenzene95-50-1 1.0E+02 3.0E+02 1.4E+01 6.5E+01 1.7E+04 1.2E+04 1.0E+05 1.5E+04 -- 1.3E+05 -- 5.0E+04 1.0E+02 1.0E+02 1.4E+01 ETox1,3-Dichlorobenzene541-73-1 6.0E+02 6.0E+02 7.1E+01 6.5E+01 2.6E+03 -- -- -- -- -- -- 5.0E+04 -- -- 6.5E+01 Dir Exp1,4-Dichlorobenzene106-46-7 5.0E+00 4.8E-01 1.5E+01 6.5E+01 2.6E+03 1.2E+01 1.0E+02 1.5E+01 2.2E+02 1.3E+02 1.9E+03 3.7E+04 5.0E+00 1.1E+02 5.0E+00 Nuis/Odor3,3-Dichlorobenzidine91-94-1 4.6E-02 4.6E-02 2.5E+02 -- 7.7E-02 -- -- -- -- -- -- 1.6E+03 -- -- 4.6E-02 Dir ExpDichlorodiphenyldichloroethane (DD72-54-8 3.1E-02 3.1E-02 1.0E-03 1.0E-03 8.4E-04 -- -- -- -- -- -- 8.0E+01 -- -- 8.4E-04 EToxDichlorodiphenyldichloroethene (DD72-55-9 4.6E-02 4.6E-02 1.0E-03 1.0E-03 5.9E-04 -- -- -- -- -- -- 2.0E+01 -- -- 5.9E-04 EToxDichlorodiphenyltrichloroethane (DD50-29-3 4.6E-02 4.6E-02 1.0E-03 1.0E-03 5.9E-04 -- -- -- -- -- -- 1.5E+00 3.5E+02 3.5E+03 5.9E-04 ETox1,1-Dichloroethane 75-34-3 5.0E+00 2.7E+00 4.7E+01 -- -- 2.0E+01 1.8E+02 2.5E+01 5.5E+02 2.1E+02 4.8E+03 5.0E+04 -- -- 5.0E+00 Dir Exp1,2-Dichloroethane 107-06-2 5.0E-01 1.7E-01 1.0E+04 1.1E+04 9.9E+01 6.1E+00 5.3E+01 7.4E+00 9.0E+01 6.4E+01 7.9E+02 5.0E+04 7.0E+03 2.0E+05 5.0E-01 Dir Exp1,1-Dichloroethene75-35-4 6.0E+00 1.0E+01 2.5E+01 2.2E+04 3.2E+00 1.7E+02 1.4E+03 2.0E+02 5.7E+03 1.7E+03 4.8E+04 5.0E+04 1.5E+03 1.5E+04 3.2E+00 EToxcis-1,2-Dichloroethene156-59-2 6.0E+00 1.1E+01 5.9E+02 2.2E+04 -- 1.1E+02 9.5E+02 1.4E+02 1.5E+04 1.1E+03 1.3E+05 5.0E+04 -- -- 6.0E+00 Dir Exptrans-1,2-Dichloroethene156-60-5 1.0E+01 6.0E+01 5.9E+02 2.2E+04 1.4E+05 1.0E+03 1.1E+04 1.6E+03 3.1E+04 1.3E+04 2.6E+05 5.0E+04 2.6E+02 2.6E+03 1.0E+01 Dir Exp2,4-Dichlorophenol120-83-2 4.6E+01 4.6E+01 1.8E+02 -- 7.9E+02 -- -- -- -- -- -- 5.0E+04 3.0E-01 3.0E+00 3.0E-01 Nuis/Odor1,2-Dichloropropane78-87-5 5.0E+00 4.4E-01 2.9E+03 1.5E+03 3.9E+01 7.6E+00 6.6E+01 9.3E+00 1.6E+02 8.1E+01 1.4E+03 5.0E+04 1.0E+01 1.0E+02 5.0E+00 Dir Exp1,3-Dichloropropene542-75-6 5.0E-01 2.0E-01 1.2E+02 7.9E+01 1.7E+03 3.8E+00 3.3E+01 4.6E+00 8.7E+01 4.0E+01 7.6E+02 5.0E+04 -- -- 5.0E-01 Dir ExpDieldrin60-57-1 7.1E-04 7.1E-04 5.6E-02 1.9E-03 1.4E-04 -- -- -- -- -- -- 9.3E+01 4.1E+01 4.1E+02 1.4E-04 EToxDiethyl phthalate84-66-2 1.5E+04 1.5E+04 1.5E+00 1.7E+00 1.2E+54 -- -- -- -- -- -- 5.0E+04 -- -- 1.5E+00 EToxDimethyl phthalate131-11-3 -- -- 1.5E+00 1.7E+00 2.9E+06 -- -- -- -- -- -- 5.0E+04 -- -- 1.5E+00 ETox2,4-Dimethylphenol105-67-9 1.0E+02 1.0E+02 5.3E+02 1.1E+02 2.3E+03 -- -- -- -- -- -- 5.0E+04 4.0E+02 4.0E+03 1.0E+02 Dir Exp2,4-Dinitrophenol51-28-5 3.9E+01 3.9E+01 7.5E+01 4.9E+02 1.4E+04 -- -- -- -- -- -- 5.0E+04 -- -- 3.9E+01 Dir Exp2,4-Dinitrotoluene121-14-2 2.4E-01 2.4E-01 1.2E+02 1.9E+02 9.1E+00 -- -- -- -- -- -- 5.0E+04 -- -- 2.4E-01 Dir Exp4 of 15GW Summary MCL PriorityHumanHealthRisk BasedOnlyFresh WaterEcotox Saltwater EcotoxSeafood Ingestion Human HealthRes. Com/Ind Res:Sand ScenarioRes:Fine to CoarseScenarioCom/Ind:SandScenarioCom/Ind: Fine to Coarse ScenarioDrinking Water Non-Drinking Water BasisSummary of Groundwater ESLs (µg/L)Aquatic Habitat GoalLevels(Table GW-2)Direct ExposureHuman HealthRisk Levels(Table GW-1)Odor NuisanceLevels(Table GW-5)Gross Contam-ination Levels (GW-4)Groundwater Vapor Intrusion Human Health Risk Levels(Table GW-3)ShallowGroundwaterDeep GroundwaterGWTier 1ESLFeb. 2016 (Rev. 3)ChemicalsCAS No.1,4-Dioxane123-91-1 3.8E-01 3.8E-01 3.4E+05 5.0E+05 -- -- -- -- -- -- -- 5.0E+04 2.3E+05 -- 3.8E-01 Dir ExpDioxin (2,3,7,8-TCDD)1746-01-6 3.0E-05 5.0E-08 5.0E-06 -- 1.4E-08 -- -- -- -- -- -- 7.0E+03 -- -- 1.4E-08 EToxEndosulfan115-29-7 1.0E+02 1.0E+02 5.6E-02 8.7E-03 2.4E+02 -- -- -- -- -- -- 7.5E+01 -- -- 8.7E-03 Dir ExpEndrin72-20-8 2.0E+00 1.8E+00 3.6E-02 2.3E-03 8.1E-01 -- -- -- -- -- -- 1.3E+02 4.1E+01 4.1E+02 2.3E-03 Dir ExpEthylbenzene100-41-4 3.0E+01 1.5E+00 2.9E+02 4.3E+01 2.9E+04 1.3E+01 1.1E+02 1.6E+01 3.7E+02 1.4E+02 3.3E+03 5.0E+04 3.0E+01 3.0E+02 1.3E+01 Dir ExpFluoranthene206-44-0 8.0E+02 8.0E+02 8.1E+00 8.0E+00 3.7E+02 -- -- -- -- -- -- 1.3E+02 -- -- 8.0E+00 Dir ExpFluorene86-73-7 2.9E+02 2.9E+02 3.9E+00 3.0E+01 1.4E+04 -- -- -- -- -- -- 9.5E+02 -- -- 3.9E+00 EToxHeptachlor76-44-8 1.0E-02 1.4E-03 3.8E-03 3.6E-03 2.1E-04 -- -- -- -- -- -- 2.8E+01 2.0E+01 2.0E+02 2.1E-04 EToxHeptachlor epoxide1024-57-3 1.0E-02 1.4E-03 3.8E-03 3.6E-03 1.1E-04 -- -- -- -- -- -- 1.8E+02 -- -- 1.1E-04 EToxHexachlorobenzene118-74-1 1.0E+00 8.8E-03 3.7E+00 6.5E+01 7.7E-04 -- -- -- -- -- -- 5.5E+01 3.0E+03 3.0E+04 7.7E-04 EToxHexachlorobutadiene87-68-3 1.4E-01 1.4E-01 4.7E+00 3.2E+00 5.0E+01 -- -- -- -- -- -- 1.0E+03 6.0E+00 6.0E+01 1.4E-01 Dir Exp-Hexachlorocyclohexane (Lindane)58-89-9 2.0E-01 3.2E-02 8.0E-02 1.6E-02 6.3E-02 -- -- -- -- -- -- 3.5E+03 1.2E+04 1.2E+05 1.6E-02 Dir ExpHexachloroethane67-72-1 3.3E-01 3.3E-01 1.2E+01 9.4E+01 8.9E+00 -- -- -- -- -- -- 2.5E+04 1.0E+01 1.0E+02 3.3E-01 Dir ExpIndeno(1,2,3-c,d)pyrene193-39-5 3.4E-02 3.4E-02 -- -- 4.9E-02 -- -- -- -- -- -- 2.7E-01 -- -- 3.4E-02 Dir ExpLead7439-92-1 1.5E+01 2.0E-01 2.5E+00 8.1E+00 -- -- -- -- -- -- -- 5.0E+04 -- -- 2.5E+00 EToxMercury (elemental)7439-97-6 2.0E+00 1.2E+00 7.7E-01 9.4E-01 5.1E-02 -- -- -- -- -- -- 5.0E+04 -- -- 5.1E-02 EToxMethoxychlor72-43-5 3.0E+01 9.0E-02 1.9E-02 3.0E-03 -- -- -- -- -- -- -- 2.0E+01 4.7E+03 4.7E+04 3.0E-03 Dir ExpMethylene chloride75-09-2 5.0E+00 9.3E-01 2.2E+03 3.2E+03 1.6E+03 4.8E+01 4.2E+02 5.7E+01 1.1E+03 5.0E+02 9.3E+03 5.0E+04 9.1E+03 9.1E+04 5.0E+00 Dir ExpMethyl ethyl ketone78-93-3 5.6E+03 5.6E+03 1.4E+04 -- -- 4.3E+06 3.6E+07 5.5E+06 2.2E+07 4.6E+07 1.8E+08 5.0E+04 8.4E+03 8.4E+04 5.6E+03 Dir ExpMethyl isobutyl ketone108-10-1 1.2E+02 1.2E+02 1.7E+02 -- -- 1.6E+06 1.3E+07 2.0E+06 1.1E+07 1.7E+07 -- 5.0E+04 1.3E+03 1.3E+04 1.2E+02 Dir ExpMethyl mercury22967-92-6 2.0E+00 2.0E+00 3.0E-03 -- -- -- -- -- -- -- -- 5.0E+04 -- -- 3.0E-03 ETox2-Methylnaphthalene91-57-6 3.6E+01 3.6E+01 2.1E+00 3.0E+01 -- -- -- -- -- -- -- 1.3E+04 1.0E+01 1.0E+02 2.1E+00 EToxMethyl tertiary butyl ether (MTBE) 1634-04-4 5.0E+00 1.3E+01 6.6E+04 8.0E+03 -- 1.2E+03 1.1E+04 1.5E+03 1.5E+04 1.3E+04 1.3E+05 5.0E+04 5.0E+00 1.8E+02 5.0E+00 Nuis/OdorMolybdenum7439-98-7 1.0E+02 1.0E+02 2.4E+02 -- -- -- -- -- -- -- -- 5.0E+04 -- -- 1.0E+02 Dir ExpNaphthalene91-20-3 1.7E-01 1.7E-01 2.4E+01 2.4E+02 -- 2.0E+01 1.7E+02 2.5E+01 1.8E+02 2.2E+02 1.6E+03 1.6E+04 2.1E+01 2.1E+02 1.7E-01 Dir ExpNickel7440-02-0 1.0E+02 1.2E+01 5.2E+01 8.2E+00 4.6E+03 -- -- -- -- -- -- 5.0E+04 -- -- 8.2E+00 Dir ExpPentachlorophenol87-86-5 1.0E+00 4.0E-02 1.5E+01 7.9E+00 8.2E+00 -- -- -- -- -- -- 5.0E+04 3.0E+01 5.9E+03 1.0E+00 Dir ExpPerchlorate7790-98-9 6.0E+00 1.0E+00 6.0E+02 -- -- -- -- -- -- -- -- 5.0E+04 -- -- 6.0E+00 Dir ExpPhenanthrene85-01-8 -- -- 6.3E+00 4.6E+00 -- -- -- -- -- -- -- 4.1E+02 1.0E+03 1.0E+04 4.6E+00 Dir ExpPhenol108-95-2 4.2E+03 4.2E+03 1.3E+03 5.8E+02 4.6E+06 -- -- -- -- -- -- 5.0E+04 5.0E+00 7.9E+04 5.0E+00 Nuis/OdorPolychlorinated biphenyls (PCBs) 1336-36-3 5.0E-01 1.9E-03 1.4E-02 3.0E-02 1.7E-04 -- -- -- -- -- -- 1.6E+01 -- -- 1.7E-04 EToxPyrene129-00-0 1.2E+02 1.2E+02 2.0E+00 -- 1.1E+04 -- -- -- -- -- -- 6.8E+01 -- -- 2.0E+00 ETox5 of 15GW Summary MCL PriorityHumanHealthRisk BasedOnlyFresh WaterEcotox Saltwater EcotoxSeafood Ingestion Human HealthRes. Com/Ind Res:Sand ScenarioRes:Fine to CoarseScenarioCom/Ind:SandScenarioCom/Ind: Fine to Coarse ScenarioDrinking Water Non-Drinking Water BasisSummary of Groundwater ESLs (µg/L)Aquatic Habitat GoalLevels(Table GW-2)Direct ExposureHuman HealthRisk Levels(Table GW-1)Odor NuisanceLevels(Table GW-5)Gross Contam-ination Levels (GW-4)Groundwater Vapor Intrusion Human Health Risk Levels(Table GW-3)ShallowGroundwaterDeep GroundwaterGWTier 1ESLFeb. 2016 (Rev. 3)ChemicalsCAS No.Selenium7782-49-2 5.0E+01 3.0E+01 5.0E+00 7.1E+01 -- -- -- -- -- -- -- 5.0E+04 -- -- 5.0E+00 EToxSilver7440-22-4 1.0E+02 9.4E+01 3.4E-01 1.9E-01 -- -- -- -- -- -- -- 5.0E+04 1.0E+02 -- 1.9E-01 Dir ExpStyrene100-42-5 1.0E+01 5.0E-01 -- -- -- 3.0E+04 2.5E+05 3.6E+04 -- 3.1E+05 -- 5.0E+04 1.0E+01 1.1E+02 1.0E+01 Nuis/Odortert-Butyl alcohol75-65-0 1.2E+01 1.2E+01 1.8E+04 -- -- -- -- -- -- -- -- 5.0E+04 -- -- 1.2E+01 Dir Exp1,1,1,2-Tetrachloroethane 630-20-6 5.7E-01 5.7E-01 9.3E+02 -- -- -- -- -- -- -- -- 5.0E+04 -- -- 5.7E-01 Dir Exp1,1,2,2-Tetrachloroethane 79-34-5 1.0E+00 7.6E-02 4.2E+02 9.0E+02 1.1E+01 -- -- -- -- -- -- 5.0E+04 5.0E+02 5.0E+03 1.0E+00 Dir ExpTetrachloroethene 127-18-4 5.0E+00 6.0E-02 1.2E+02 2.3E+02 8.9E+00 3.0E+00 2.6E+01 3.7E+00 1.0E+02 3.2E+01 8.8E+02 5.0E+04 1.7E+02 3.0E+03 3.0E+00 Dir ExpThallium 7440-28-0 2.0E+00 1.0E-01 2.0E+01 2.1E+02 6.3E+00 -- -- -- -- -- -- 5.0E+04 -- -- 2.0E+00 Dir ExpToluene 108-88-3 4.0E+01 1.5E+02 1.3E+02 2.5E+03 2.0E+05 3.6E+03 3.0E+04 4.3E+03 1.0E+05 3.7E+04 -- 5.0E+04 4.0E+01 4.0E+02 4.0E+01 Nuis/OdorToxaphene 8001-35-2 3.0E+00 1.3E-02 2.0E-04 2.0E-04 7.5E-04 -- -- -- -- -- -- 1.5E+03 1.4E+02 1.4E+02 2.0E-04 EToxTPH gasoline -- 2.2E+02 2.2E+02 4.4E+02 3.7E+03 -- -- -- -- -- -- -- 5.0E+04 1.0E+02 5.0E+03 1.0E+02 Nuis/OdorTPH Stoddard solvent -- 1.5E+02 1.5E+02 6.4E+02 6.4E+02 -- -- -- -- -- -- -- 2.5E+03 1.0E+02 5.0E+03 1.0E+02 Nuis/OdorTPH diesel -- 1.5E+02 1.5E+02 6.4E+02 6.4E+02 -- -- -- -- -- -- -- 2.5E+03 1.0E+02 5.0E+03 1.0E+02 Nuis/OdorTPH motor oil -- Note 1 Note 1 -- -- -- -- -- -- -- -- -- 5.0E+04 Note 1 Note 1 5.0E+04 Gross Contam1,2,4-Trichlorobenzene 120-82-1 5.0E+00 1.1E+00 2.5E+01 6.5E+01 -- 2.4E+02 2.0E+03 3.0E+02 3.1E+03 2.5E+03 2.6E+04 5.0E+04 3.0E+03 3.0E+04 5.0E+00 Dir Exp1,1,1-Trichloroethane 71-55-6 2.0E+02 1.0E+03 6.2E+01 3.1E+03 -- 4.9E+03 4.2E+04 6.1E+03 1.7E+05 5.1E+04 -- 5.0E+04 9.7E+02 5.0E+05 6.2E+01 ETox1,1,2-Trichloroethane 79-00-5 5.0E+00 2.8E-01 4.7E+03 -- 4.2E+01 -- -- -- -- -- -- 5.0E+04 -- -- 5.0E+00 Dir ExpTrichloroethene 79-01-6 5.0E+00 4.9E-01 3.6E+02 2.0E+02 8.1E+01 5.6E+00 4.9E+01 6.9E+00 1.7E+02 6.0E+01 1.5E+03 5.0E+04 3.1E+02 1.0E+05 5.0E+00 Dir Exp2,4,5-Trichlorophenol 95-95-4 1.2E+03 1.2E+03 6.3E+01 1.1E+01 -- -- -- -- -- -- -- 5.0E+04 2.0E+02 2.0E+03 1.1E+01 Dir Exp2,4,6-Trichlorophenol 88-06-2 6.3E-01 6.3E-01 4.9E+02 -- 6.5E+00 -- -- -- -- -- -- 5.0E+04 1.0E+02 1.0E+03 6.3E-01 Dir ExpVanadium 7440-62-2 5.0E+01 5.0E+01 1.9E+01 -- -- -- -- -- -- -- -- 5.0E+04 -- -- 1.9E+01 EToxVinyl chloride 75-01-4 5.0E-01 9.7E-03 7.8E+02 -- 5.3E+02 6.1E-02 5.3E-01 7.3E-02 2.0E+00 6.4E-01 1.7E+01 5.0E+04 3.4E+03 3.4E+04 6.1E-02 Dir ExpXylenes 1330-20-7 2.0E+01 1.9E+02 -- 1.0E+02 -- 1.3E+03 1.1E+04 1.6E+03 3.8E+04 1.3E+04 -- 5.0E+04 2.0E+01 5.3E+03 2.0E+01 Nuis/OdorZinc 7440-66-6 5.0E+03 6.0E+03 1.2E+02 8.1E+01 -- -- -- -- -- -- -- 5.0E+04 5.0E+03 -- 8.1E+01 Dir ExpNotes:MCLs - Maximum Contaminant LevelsRes. - ResidentialCom/Ind - Commercial/IndustrialDir Exp - Direct ExposureNuis/Odor - Nuisance-OdorETox - Ecological Toxicity1 - TPH motor oil is not soluble. TPH motor oil detections in water most likely are petroleum degradates or less likely NAPL. If the detections are degradates, add TPH motor oil and TPH diesel results and compare to TPH diesel criterion. See User's Guide Chapter 9 for further information.6 of 15GW Summary Res:Shallow Soil ExposureCom/Ind: Shallow Soil ExposureAny Land Use/ Any Depth Soil Expsoure:ConstructionWorkerDrinking Water Nondrinking Water Res:Shallow Soil ExposureCom/Ind:Shallow Soil ExposureAny Land Use:Deep Soil Exposure(CW)Acenaphthene 83-32-9 3.6E+03 4.5E+04 1.0E+04 1.6E+01 1.9E+01 1.3E+02 1.0E+03 2.5E+03 2.5E+03 1.6E+01 LeachingAcenaphthylene 208-96-8 -- -- -- 1.3E+01 1.3E+01 5.9E+01 5.0E+02 1.0E+03 1.0E+03 1.3E+01 LeachingAcetone 67-64-1 5.9E+04 6.3E+05 2.6E+05 5.0E-01 5.0E-01 1.0E+05 5.0E+02 1.0E+03 1.0E+03 5.0E-01 LeachingAldrin 309-00-2 3.6E-02 1.6E-01 1.0E+00 5.0E+00 5.0E+00 5.0E+00 1.0E+03 2.5E+03 2.5E+03 3.6E-02 Dir ExpAnthracene 120-12-7 1.8E+04 2.3E+05 5.0E+04 2.8E+00 2.8E+00 6.1E+00 5.0E+02 1.0E+03 1.0E+03 2.8E+00 LeachingAntimony 7440-36-0 3.1E+01 4.7E+02 1.4E+02 -- -- -- -- -- -- 3.1E+01 Dir ExpArsenic 7440-38-2 6.7E-02 3.1E-01 9.8E-01 -- -- -- -- -- -- 6.7E-02 Dir ExpBarium 7440-39-3 1.5E+04 2.2E+05 3.0E+03 -- -- -- -- -- -- 3.0E+03 Dir ExpBenzene 71-43-2 2.3E-01 1.0E+00 2.4E+01 4.4E-02 4.9E-02 8.7E+02 5.0E+02 1.0E+03 1.0E+03 4.4E-02 LeachingBenz(a)anthracene 56-55-3 1.6E-01 2.9E+00 1.6E+01 1.2E+01 1.2E+01 1.2E+01 5.0E+02 1.0E+03 1.0E+03 1.6E-01 Dir ExpBenzo(b)fluoranthene 205-99-2 1.6E-01 2.9E+00 1.6E+01 4.6E+01 6.4E+02 4.6E+01 5.0E+02 1.0E+03 1.0E+03 1.6E-01 Dir ExpBenzo(k)fluoranthene 207-08-9 1.6E+00 2.9E+01 1.5E+02 2.6E+00 3.7E+01 2.6E+00 5.0E+02 1.0E+03 1.0E+03 1.6E+00 Dir ExpBenzo(g,h,i)perylene 191-24-2 -- -- -- 2.7E+01 2.7E+01 2.5E+00 5.0E+02 1.0E+03 1.0E+03 2.5E+00 Gross ContamBenzo(a)pyrene 50-32-8 1.6E-02 2.9E-01 1.6E+00 1.3E+02 1.3E+02 1.3E+02 5.0E+02 1.0E+03 1.0E+03 1.6E-02 Dir ExpBeryllium 7440-41-7 1.5E+02 2.2E+03 4.2E+01 -- -- -- -- -- -- 4.2E+01 Dir Exp1,1-Biphenyl 92-52-4 6.4E+01 2.7E+02 2.4E+02 6.5E-01 6.5E+00 3.5E+02 5.0E+02 1.0E+03 1.0E+03 6.5E-01 LeachingBis(2-chloroethyl) ether 111-44-4 1.2E-01 5.3E-01 6.8E+00 8.0E-05 7.8E-01 9.6E+03 5.0E+02 1.0E+03 1.0E+03 8.0E-05 LeachingBis(2-chloroisopropyl) ether 108-60-1 3.6E+00 1.6E+01 2.2E+02 3.9E-03 6.6E-01 7.9E+02 5.0E+02 1.0E+03 1.0E+03 3.9E-03 LeachingBis(2-ethylhexyl) phthalate 117-81-7 3.9E+01 1.6E+02 9.5E+02 7.8E+02 7.8E+02 7.8E+02 5.0E+02 1.0E+03 1.0E+03 3.9E+01 Dir ExpBoron 7440-42-8 1.6E+04 2.3E+05 4.5E+04 -- -- -- -- -- -- 1.6E+04 Dir ExpBromodichloromethane 75-27-4 5.2E-01 2.3E+00 4.7E+01 1.5E+00 2.1E+01 3.0E+03 1.0E+03 2.5E+03 2.5E+03 5.2E-01 Dir ExpBromoform (Tribromomethane) 75-25-2 6.3E+01 3.0E+02 2.2E+03 1.7E+00 2.4E+01 2.4E+03 5.0E+02 1.0E+03 1.0E+03 1.7E+00 LeachingBromomethane 74-83-9 8.0E+00 3.6E+01 3.4E+01 3.0E-01 1.5E+00 3.1E+03 5.0E+02 1.0E+03 1.0E+03 3.0E-01 LeachingCadmium (soil) 7440-43-9 3.9E+01 5.8E+02 4.3E+01 -- -- -- -- -- -- 3.9E+01 Dir ExpCarbon tetrachloride 56-23-5 1.2E-01 5.4E-01 1.3E+01 4.8E-02 4.8E-02 1.1E+03 5.0E+02 1.0E+03 1.0E+03 4.8E-02 LeachingChlordane 57-74-9 4.8E-01 2.2E+00 1.4E+01 1.5E+01 1.5E+01 1.5E+01 1.0E+03 2.5E+03 2.5E+03 4.8E-01 Dir Expp-Chloroaniline 106-47-8 3.5E+00 1.6E+01 1.2E+02 3.9E-03 5.3E-02 1.3E+03 5.0E+02 1.0E+03 1.0E+03 3.9E-03 LeachingChlorobenzene 108-90-7 2.5E+02 1.2E+03 1.1E+03 1.5E+00 1.5E+00 6.8E+02 5.0E+02 1.0E+03 1.0E+03 1.5E+00 LeachingChloroethane 75-00-3 1.3E+04 5.3E+04 5.3E+04 1.1E+00 1.1E+01 1.6E+03 5.0E+02 1.0E+03 1.0E+03 1.1E+00 LeachingChloroform 67-66-3 3.0E-01 1.3E+00 3.2E+01 6.8E-02 6.8E-02 2.9E+03 5.0E+02 1.0E+03 1.0E+03 6.8E-02 LeachingFeb. 2016 (Rev. 3)ChemicalsCAS No.Odor Nuisance Levels(Table S-4)Summary of Soil ESLs (mg/kg)Direct Exposure Human Health Risk Levels (Table S-1)Leaching to Groundwater Levels(Table S-2)SoilTier 1 ESLBasisGross ContaminationLevels(Table S-3)7 of 15Soil Summary Res:Shallow Soil ExposureCom/Ind: Shallow Soil ExposureAny Land Use/ Any Depth Soil Expsoure:ConstructionWorkerDrinking Water Nondrinking Water Res:Shallow Soil ExposureCom/Ind:Shallow Soil ExposureAny Land Use:Deep Soil Exposure(CW)Feb. 2016 (Rev. 3)ChemicalsCAS No.Odor Nuisance Levels(Table S-4)Summary of Soil ESLs (mg/kg)Direct Exposure Human Health Risk Levels (Table S-1)Leaching to Groundwater Levels(Table S-2)SoilTier 1 ESLBasisGross ContaminationLevels(Table S-3)Chloromethane74-87-3 1.0E+02 4.3E+02 4.3E+02 2.9E+01 6.8E+01 4.1E+03 1.0E+02 5.0E+02 5.0E+02 2.9E+01 Leaching2-Chlorophenol95-57-8 3.9E+02 5.8E+03 1.8E+03 1.2E-02 1.2E-01 5.5E+04 1.0E+02 5.0E+02 5.0E+02 1.2E-02 LeachingChromium (total)7440-47-3 ----------------------Chromium III16065-83-1 1.2E+05 1.8E+06 5.3E+05 ------------ 1.2E+05 Dir ExpChromium VI18540-29-9 3.0E-01 6.2E+00 2.8E+00 ------------ 3.0E-01 Dir ExpChrysene218-01-9 1.5E+01 2.6E+02 1.5E+03 3.8E+00 2.3E+01 3.8E+00 5.0E+02 1.0E+03 1.0E+03 3.8E+00 Gross ContamCobalt7440-48-4 2.3E+01 3.5E+02 2.8E+01 ------------ 2.3E+01 Dir ExpCopper7440-50-8 3.1E+03 4.7E+04 1.4E+04 ------------ 3.1E+03 Dir ExpCyanide57-12-5 5.3E+00 2.4E+01 2.1E+01 3.6E-03 3.6E-03 2.0E+05 1.0E+02 5.0E+02 5.0E+02 3.6E-03 LeachingDibenz(a,h)anthracene 53-70-3 1.6E-02 2.9E-01 1.6E+00 9.9E+00 1.4E+02 9.9E+00 5.0E+02 1.0E+03 1.0E+03 1.6E-02 Dir ExpDibromochloromethane 124-48-1 8.3E+00 3.9E+01 2.9E+02 3.8E+00 9.1E+01 1.3E+04 1.0E+02 5.0E+02 5.0E+02 3.8E+00 Leaching1,2-dibromo-3-chloropropane 96-12-8 5.3E-03 7.2E-02 1.3E+00 4.5E-03 2.2E+00 1.1E+03 5.0E+02 1.0E+03 1.0E+03 4.5E-03 Leaching1,2-Dibromoethane106-93-4 3.6E-02 1.6E-01 3.2E+00 3.3E-04 5.7E-03 9.2E+02 5.0E+02 1.0E+03 1.0E+03 3.3E-04 Leaching1,2-Dichlorobenzene95-50-1 2.0E+03 1.1E+04 8.5E+03 1.6E+00 1.6E+00 6.0E+02 1.0E+03 2.5E+03 2.5E+03 1.6E+00 Leaching1,3-Dichlorobenzene541-73-1 ------ 7.4E+00 7.4E+00 6.0E+02 1.0E+02 5.0E+02 5.0E+02 7.4E+00 Leaching1,4-Dichlorobenzene106-46-7 3.0E+00 1.3E+01 3.1E+02 5.9E-01 1.4E+00 2.8E+02 5.0E+02 1.0E+03 1.0E+03 5.9E-01 Leaching3,3-Dichlorobenzidine91-94-1 5.8E-01 2.7E+00 2.0E+01 1.2E-02 6.6E+01 3.0E+01 5.0E+02 1.0E+03 1.0E+03 1.2E-02 LeachingDichlorodiphenyldichloroethane (D72-54-8 2.7E+00 1.2E+01 8.1E+01 7.5E+02 7.5E+02 7.5E+02 5.0E+02 1.0E+03 1.0E+03 2.7E+00 Dir ExpDichlorodiphenyldichloroethene (D72-55-9 1.9E+00 8.5E+00 5.7E+01 1.1E+03 1.1E+03 1.1E+03 5.0E+02 1.0E+03 1.0E+03 1.9E+00 Dir ExpDichlorodiphenyltrichloroethane ( 50-29-3 1.9E+00 8.5E+00 5.7E+01 4.3E+00 4.3E+00 4.3E+00 5.0E+02 1.0E+03 1.0E+03 1.9E+00 Dir Exp1,1-Dichloroethane75-34-3 3.8E+00 1.7E+01 3.9E+02 2.0E-01 8.1E-01 1.7E+03 5.0E+02 1.0E+03 1.0E+03 2.0E-01 Leaching1,2-Dichloroethane107-06-2 3.7E-01 1.6E+00 3.7E+01 4.5E-03 5.4E-02 1.8E+03 1.0E+02 5.0E+02 5.0E+02 4.5E-03 Leaching1,1-Dichloroethene75-35-4 9.4E+01 4.0E+02 3.9E+02 5.5E-01 4.3E+00 1.5E+03 5.0E+02 1.0E+03 1.0E+03 5.5E-01 Leachingcis-1,2-Dichloroethene 156-59-2 1.9E+01 9.0E+01 8.2E+01 1.9E-01 3.5E+00 1.2E+03 1.0E+02 5.0E+02 5.0E+02 1.9E-01 Leachingtrans-1,2-Dichloroethene 156-60-5 1.6E+02 7.3E+02 6.8E+02 6.7E-01 3.9E+01 3.1E+03 5.0E+02 1.0E+03 1.0E+03 6.7E-01 Leaching2,4-Dichlorophenol120-83-2 2.3E+02 3.5E+03 1.1E+03 3.0E-01 3.0E+00 1.6E+05 5.0E+02 1.0E+03 1.0E+03 3.0E-01 Leaching1,2-Dichloropropane78-87-5 8.8E-01 3.9E+00 5.8E+01 1.2E-01 1.9E-01 1.1E+03 1.0E+02 5.0E+02 5.0E+02 1.2E-01 Leaching1,3-Dichloropropene542-75-6 2.8E-01 1.2E+00 2.9E+01 5.9E-02 4.4E-01 1.4E+03 5.0E+02 1.0E+03 1.0E+03 5.9E-02 LeachingDieldrin60-57-1 3.8E-02 1.7E-01 1.1E+00 1.7E-04 2.3E-03 8.3E+00 5.0E+02 1.0E+03 1.0E+03 1.7E-04 LeachingDiethyl phthalate84-66-2 5.1E+04 6.6E+05 1.5E+05 3.5E-02 3.5E-02 8.4E+02 5.0E+02 1.0E+03 1.0E+03 3.5E-02 Leaching8 of 15Soil Summary Res:Shallow Soil ExposureCom/Ind: Shallow Soil ExposureAny Land Use/ Any Depth Soil Expsoure:ConstructionWorkerDrinking Water Nondrinking Water Res:Shallow Soil ExposureCom/Ind:Shallow Soil ExposureAny Land Use:Deep Soil Exposure(CW)Feb. 2016 (Rev. 3)ChemicalsCAS No.Odor Nuisance Levels(Table S-4)Summary of Soil ESLs (mg/kg)Direct Exposure Human Health Risk Levels (Table S-1)Leaching to Groundwater Levels(Table S-2)SoilTier 1 ESLBasisGross ContaminationLevels(Table S-3)Dimethyl phthalate131-11-3 ------ 3.5E-02 3.5E-02 4.7E+03 5.0E+02 1.0E+03 1.0E+03 3.5E-02 Leaching2,4-Dimethylphenol105-67-9 1.6E+03 2.3E+04 7.1E+03 6.7E-01 7.4E-01 2.7E+03 1.0E+02 5.0E+02 5.0E+02 6.7E-01 Leaching2,4-Dinitrophenol51-28-5 1.6E+02 2.3E+03 7.1E+02 1.1E-01 2.1E-01 1.1E+03 5.0E+02 1.0E+03 1.0E+03 1.1E-01 Leaching2,4-Dinitrotoluene121-14-2 2.2E+00 1.1E+01 7.9E+01 1.8E-03 8.6E-01 1.0E+02 5.0E+02 1.0E+03 1.0E+03 1.8E-03 Leaching1,4-Dioxane123-91-1 7.0E+00 3.3E+01 2.5E+02 2.3E-04 3.0E+01 1.2E+05 5.0E+02 1.0E+03 1.0E+03 2.3E-04 LeachingDioxin (2,3,7,8-TCDD) 1746-01-6 4.9E-06 2.2E-05 1.5E-04 1.1E+06 1.1E+06 1.1E+06 1.0E+02 5.0E+02 5.0E+02 4.9E-06 Dir ExpEndosulfan115-29-7 4.2E+02 5.8E+03 1.5E+03 4.6E-03 4.6E-03 2.9E+00 5.0E+02 1.0E+03 1.0E+03 4.6E-03 LeachingEndrin72-20-8 2.1E+01 2.9E+02 7.4E+01 6.5E-04 6.5E-04 2.7E+00 5.0E+02 1.0E+03 1.0E+03 6.5E-04 LeachingEthylbenzene100-41-4 5.1E+00 2.2E+01 4.8E+02 1.4E+00 1.4E+00 4.0E+02 5.0E+02 1.0E+03 1.0E+03 1.4E+00 LeachingFluoranthene206-44-0 2.4E+03 3.0E+04 6.7E+03 6.0E+01 6.0E+01 6.0E+01 5.0E+02 1.0E+03 1.0E+03 6.0E+01 Gross ContamFluorene86-73-7 2.4E+03 3.0E+04 6.7E+03 8.9E+00 8.9E+00 1.6E+02 5.0E+02 1.0E+03 1.0E+03 8.9E+00 LeachingHeptachlor76-44-8 1.4E-01 6.0E-01 3.8E+00 7.7E-04 1.3E-02 7.4E+00 1.0E+03 2.5E+03 2.5E+03 7.7E-04 LeachingHeptachlor epoxide1024-57-3 6.7E-02 3.0E-01 1.9E+00 4.2E-04 1.4E-02 4.8E+01 1.0E+03 2.5E+03 2.5E+03 4.2E-04 LeachingHexachlorobenzene118-74-1 3.4E-01 1.5E+00 9.5E+00 7.9E+02 7.9E+02 7.9E+02 5.0E+02 1.0E+03 1.0E+03 3.4E-01 Dir ExpHexachlorobutadiene87-68-3 8.9E+00 4.2E+01 3.1E+02 6.8E-01 1.6E+01 3.5E+02 5.0E+02 1.0E+03 1.0E+03 6.8E-01 Leaching-Hexachlorocyclohexane (Lindan58-89-9 5.5E-01 2.5E+00 1.6E+01 9.8E-03 9.8E-03 1.6E+02 5.0E+02 1.0E+03 1.0E+03 9.8E-03 LeachingHexachloroethane67-72-1 1.4E+01 5.7E+01 1.3E+02 1.1E+00 4.1E+01 6.0E+03 5.0E+02 1.0E+03 1.0E+03 1.1E+00 LeachingIndeno(1,2,3-c,d)pyrene 193-39-5 1.6E-01 2.9E+00 1.6E+01 9.1E+00 7.0E+01 5.1E+00 5.0E+02 1.0E+03 1.0E+03 1.6E-01 Dir ExpLead7439-92-1 8.0E+01 3.2E+02 1.6E+02 ------------ 8.0E+01 Dir ExpMercury (elemental)7439-97-6 1.3E+01 1.9E+02 4.4E+01 ------5.0E+02 1.0E+03 1.0E+03 1.3E+01 Dir ExpMethoxychlor72-43-5 3.5E+02 4.8E+03 1.2E+03 1.9E+01 1.9E+01 1.9E+01 5.0E+02 1.0E+03 1.0E+03 1.9E+01 Gross ContamMethylene chloride75-09-2 1.9E+00 2.5E+01 5.0E+02 7.7E-02 7.3E-01 2.4E+03 5.0E+02 1.0E+03 1.0E+03 7.7E-02 LeachingMethyl ethyl ketone78-93-3 3.1E+04 2.5E+05 1.4E+05 5.1E+00 1.3E+01 3.4E+04 5.0E+02 1.0E+03 1.0E+03 5.1E+00 LeachingMethyl isobutyl ketone 108-10-1 5.8E+03 7.1E+04 2.6E+04 2.8E+00 3.9E+00 1.7E+04 1.0E+02 5.0E+02 5.0E+02 2.8E+00 LeachingMethyl mercury22967-92-6 6.3E+00 8.2E+01 1.9E+01 ------1.0E+02 5.0E+02 5.0E+02 6.3E+00 Dir Exp2-Methylnaphthalene91-57-6 2.4E+02 3.0E+03 6.7E+02 2.5E-01 2.5E-01 1.1E+02 5.0E+02 1.0E+03 1.0E+03 2.5E-01 LeachingMethyl tertiary butyl ether (MTBE 1634-04-4 4.2E+01 1.8E+02 3.7E+03 2.3E-02 8.4E-01 2.1E+04 1.0E+02 5.0E+02 5.0E+02 2.3E-02 LeachingMolybdenum7439-98-7 3.9E+02 5.8E+03 1.8E+03 ------------ 3.9E+02 Dir ExpNaphthalene91-20-3 3.3E+00 1.4E+01 3.5E+02 3.3E-02 3.9E+00 2.2E+02 5.0E+02 1.0E+03 1.0E+03 3.3E-02 LeachingNickel7440-02-0 8.2E+02 1.1E+04 8.6E+01 ------------ 8.6E+01 Dir Exp9 of 15Soil Summary Res:Shallow Soil ExposureCom/Ind: Shallow Soil ExposureAny Land Use/ Any Depth Soil Expsoure:ConstructionWorkerDrinking Water Nondrinking Water Res:Shallow Soil ExposureCom/Ind:Shallow Soil ExposureAny Land Use:Deep Soil Exposure(CW)Feb. 2016 (Rev. 3)ChemicalsCAS No.Odor Nuisance Levels(Table S-4)Summary of Soil ESLs (mg/kg)Direct Exposure Human Health Risk Levels (Table S-1)Leaching to Groundwater Levels(Table S-2)SoilTier 1 ESLBasisGross ContaminationLevels(Table S-3)Pentachlorophenol87-86-5 1.0E+00 4.0E+00 2.0E+01 2.7E+06 2.7E+06 2.7E+06 5.0E+02 1.0E+03 1.0E+03 1.0E+00 Dir ExpPerchlorate7790-98-9 5.5E+01 8.2E+02 2.5E+02 ------------ 5.5E+01 Dir ExpPhenanthrene85-01-8 ------ 1.1E+01 1.1E+01 6.9E+01 5.0E+02 1.0E+03 1.0E+03 1.1E+01 LeachingPhenol108-95-2 2.3E+04 3.5E+05 9.8E+04 7.6E-02 8.8E+00 5.2E+04 5.0E+02 1.0E+03 1.0E+03 7.6E-02 LeachingPolychlorinated biphenyls (PCBs)1336-36-3 2.5E-01 1.0E+00 5.6E+00 6.3E+00 6.3E+00 6.3E+00 5.0E+02 1.0E+03 1.0E+03 2.5E-01 Dir ExpPyrene129-00-0 1.8E+03 2.3E+04 5.0E+03 8.5E+01 8.5E+01 8.5E+01 5.0E+02 1.0E+03 1.0E+03 8.5E+01 Gross ContamSelenium7782-49-2 3.9E+02 5.8E+03 1.7E+03 ------------ 3.9E+02 Dir ExpSilver7440-22-4 3.9E+02 5.8E+03 1.8E+03 ------------ 3.9E+02 Dir ExpStyrene100-42-5 6.6E+03 4.0E+04 2.9E+04 1.5E+00 1.6E+01 1.5E+03 5.0E+02 1.0E+03 1.0E+03 1.5E+00 Leachingtert-Butyl alcohol75-65-0 ------ 7.5E-02 1.1E+02 3.2E+05 1.0E+02 5.0E+02 5.0E+02 7.5E-02 Leaching1,1,1,2-Tetrachloroethane 630-20-6 4.2E+00 1.8E+01 3.4E+02 1.0E-02 1.6E+01 2.0E+03 1.0E+02 5.0E+02 5.0E+02 1.0E-02 Leaching1,1,2,2-Tetrachloroethane 79-34-5 5.3E-01 2.3E+00 4.4E+01 1.8E-02 7.4E+00 2.0E+03 5.0E+02 1.0E+03 1.0E+03 1.8E-02 LeachingTetrachloroethene127-18-4 6.0E-01 2.7E+00 3.3E+01 4.2E-01 4.2E-01 2.3E+02 5.0E+02 1.0E+03 1.0E+03 4.2E-01 LeachingThallium7440-28-0 7.8E-01 1.2E+01 3.5E+00 ------------ 7.8E-01 Dir ExpToluene108-88-3 9.7E+02 4.6E+03 4.1E+03 2.9E+00 9.3E+00 6.5E+02 5.0E+02 1.0E+03 1.0E+03 2.9E+00 LeachingToxaphene8001-35-2 5.1E-01 2.2E+00 1.4E+01 4.2E-04 4.2E-04 9.3E+01 5.0E+02 1.0E+03 1.0E+03 4.2E-04 LeachingTPH gasoline--7.4E+02 3.9E+03 2.8E+03 7.7E+02 3.4E+03 1.0E+03 1.0E+02 5.0E+02 5.0E+02 1.0E+02 Nuis/OdorTPH Stoddard solvent--1.6E+02 8.2E+02 6.3E+02 1.0E+03 6.5E+03 2.3E+03 1.0E+02 5.0E+02 5.0E+02 1.0E+02 Nuis/OdorTPH diesel--2.3E+02 1.1E+03 8.8E+02 5.7E+02 3.6E+03 2.3E+03 5.0E+02 1.0E+03 1.0E+03 2.3E+02 Dir ExpTPH motor oil--1.1E+04 1.4E+05 3.2E+04 ----5.1E+03------ 5.1E+03 Gross Contam1,2,4-Trichlorobenzene 120-82-1 2.4E+01 1.1E+02 3.1E+02 1.5E+00 7.6E+00 3.2E+03 1.0E+03 2.5E+03 2.5E+03 1.5E+00 Leaching1,1,1-Trichloroethane71-55-6 2.1E+03 8.9E+03 8.8E+03 7.8E+00 7.8E+00 1.2E+03 5.0E+02 1.0E+03 1.0E+03 7.8E+00 Leaching1,1,2-Trichloroethane79-00-5 9.6E-01 4.2E+00 5.2E+00 7.0E-02 6.6E+01 1.8E+03 1.0E+02 5.0E+02 5.0E+02 7.0E-02 LeachingTrichloroethene79-01-6 1.2E+00 8.0E+00 2.3E+01 4.6E-01 5.1E-01 1.3E+03 5.0E+02 1.0E+03 1.0E+03 4.6E-01 Leaching2,4,5-Trichlorophenol95-95-4 7.8E+03 1.2E+05 3.5E+04 1.8E-01 1.8E-01 7.6E+02 1.0E+02 5.0E+02 5.0E+02 1.8E-01 Leaching2,4,6-Trichlorophenol88-06-2 9.9E+00 4.7E+01 3.5E+02 2.1E-01 1.6E+02 9.7E+03 1.0E+02 5.0E+02 5.0E+02 2.1E-01 LeachingVanadium7440-62-2 3.9E+02 5.8E+03 4.7E+02 ------------ 3.9E+02 Dir ExpVinyl chloride75-01-4 8.2E-03 1.5E-01 3.4E+00 1.0E-02 1.0E-02 1.2E+03 5.0E+02 1.0E+03 1.0E+03 8.2E-03 Dir ExpXylenes1330-20-7 5.6E+02 2.4E+03 2.4E+03 2.3E+00 1.1E+01 4.2E+02 5.0E+02 1.0E+03 1.0E+03 2.3E+00 LeachingZinc7440-66-6 2.3E+04 3.5E+05 1.1E+05 ------------ 2.3E+04 Dir Exp10 of 15Soil Summary Res:Shallow Soil ExposureCom/Ind: Shallow Soil ExposureAny Land Use/ Any Depth Soil Expsoure:ConstructionWorkerDrinking Water Nondrinking Water Res:Shallow Soil ExposureCom/Ind:Shallow Soil ExposureAny Land Use:Deep Soil Exposure(CW)Feb. 2016 (Rev. 3)ChemicalsCAS No.Odor Nuisance Levels(Table S-4)Summary of Soil ESLs (mg/kg)Direct Exposure Human Health Risk Levels (Table S-1)Leaching to Groundwater Levels(Table S-2)SoilTier 1 ESLBasisGross ContaminationLevels(Table S-3)Notes:Res. - ResidentialCom/Ind - Commercial/IndustrialCW - Construction WorkerExp - Exposure11 of 15Soil Summary ResidentialCommercial/ IndustrialResidentialCommercial/ IndustrialResidentialCommercial/ IndustrialAcenaphthene 83-32-9 -- -- 2.6E+05 5.1E+05 2.6E+05 Nuis/Odor -- -- 5.1E+02 5.1E+02 Nuis/OdorAcenaphthylene 208-96-8 -- -- -- -- -- -- -- -- -- -- --Acetone 67-64-1 1.6E+07 1.4E+08 1.5E+07 3.1E+07 1.5E+07 Nuis/Odor 3.2E+04 1.4E+05 3.1E+04 3.1E+04 Nuis/OdorAldrin 309-00-2 2.9E-01 2.5E+00 1.3E+05 2.6E+05 2.9E-01 Dir Exp 5.7E-04 2.5E-03 2.6E+02 5.7E-04 Dir ExpAnthracene 120-12-7 -- -- -- -- -- -- -- -- -- -- --Antimony 7440-36-0 -- -- -- -- -- -- -- -- -- -- --Arsenic 7440-38-2 -- -- -- -- -- -- -- -- -- -- --Barium 7440-39-3 -- -- -- -- -- -- -- -- -- -- --Benzene 71-43-2 4.8E+01 4.2E+02 2.4E+06 4.9E+06 4.8E+01 Dir Exp 9.7E-02 4.2E-01 4.9E+03 9.7E-02 Dir ExpBenz(a)anthracene 56-55-3 -- -- -- -- -- -- -- -- -- -- --Benzo(b)fluoranthene 205-99-2 4.6E+00 1.1E+02 -- -- 4.6E+00 Dir Exp 9.2E-03 1.1E-01 -- 9.2E-03 Dir ExpBenzo(k)fluoranthene 207-08-9 4.6E+00 1.1E+02 -- -- 4.6E+00 Dir Exp 9.2E-03 1.1E-01 -- 9.2E-03 Dir ExpBenzo(g,h,i)perylene 191-24-2 -- -- -- -- -- -- -- -- -- -- --Benzo(a)pyrene 50-32-8 -- -- -- -- -- -- -- -- -- -- --Beryllium 7440-41-7 -- -- -- -- -- -- -- -- -- -- --1,1-Biphenyl 92-52-4 2.1E+02 1.8E+03 3.0E+04 6.0E+04 2.1E+02 Dir Exp 4.2E-01 1.8E+00 6.0E+01 4.2E-01 Dir ExpBis(2-chloroethyl) ether 111-44-4 2.0E+00 1.7E+01 1.4E+05 2.9E+05 2.0E+00 Dir Exp 4.0E-03 1.7E-02 2.9E+02 4.0E-03 Dir ExpBis(2-chloroisopropyl) ether 108-60-1 1.4E+02 1.2E+03 1.1E+06 2.2E+06 1.4E+02 Dir Exp 2.8E-01 1.2E+00 2.2E+03 2.8E-01 Dir ExpBis(2-ethylhexyl) phthalate 117-81-7 -- -- -- -- -- -- -- -- -- -- --Boron 7440-42-8 -- -- -- -- -- -- -- -- -- -- --Bromodichloromethane 75-27-4 3.8E+01 3.3E+02 5.5E+09 1.1E+10 3.8E+01 Dir Exp 7.6E-02 3.3E-01 1.1E+07 7.6E-02 Dir ExpBromoform (Tribromomethane) 75-25-2 1.3E+03 1.1E+04 6.7E+06 1.3E+07 1.3E+03 Dir Exp 2.6E+00 1.1E+01 1.3E+04 2.6E+00 Dir ExpBromomethane 74-83-9 2.6E+03 2.2E+04 4.0E+07 8.0E+07 2.6E+03 Dir Exp 5.2E+00 2.2E+01 8.0E+04 5.2E+00 Dir ExpCadmium (soil) 7440-43-9 -- -- -- -- -- -- -- -- -- -- --Cadmium (water) 7440-43-9 -- -- -- -- -- -- -- -- -- -- --Carbon tetrachloride 56-23-5 3.3E+01 2.9E+02 3.2E+07 6.3E+07 3.3E+01 Dir Exp 6.7E-02 2.9E-01 6.3E+04 6.7E-02 Dir ExpChlordane 57-74-9 4.1E+00 3.6E+01 4.2E+03 8.4E+03 4.1E+00 Dir Exp 8.3E-03 3.6E-02 8.4E+00 8.3E-03 Dir Expp-Chloroaniline 106-47-8 -- -- -- -- -- -- -- -- -- -- --Chlorobenzene 108-90-7 2.6E+04 2.2E+05 5.0E+05 1.0E+06 2.6E+04 Dir Exp 5.2E+01 2.2E+02 1.0E+03 5.2E+01 Dir ExpChloroethane 75-00-3 5.2E+06 4.4E+07 1.9E+08 3.8E+08 5.2E+06 Dir Exp 1.0E+04 4.4E+04 3.8E+05 1.0E+04 Dir ExpChloroform 67-66-3 6.1E+01 5.3E+02 2.1E+08 4.2E+08 6.1E+01 Dir Exp 1.2E-01 5.3E-01 4.2E+05 1.2E-01 Dir ExpChloromethane 74-87-3 4.7E+04 3.9E+05 -- -- 4.7E+04 Dir Exp 9.4E+01 3.9E+02 -- 9.4E+01 Dir Exp2-Chlorophenol 95-57-8 -- -- 9.5E+03 1.9E+04 9.5E+03 Nuis/Odor -- -- 1.9E+01 1.9E+01 Nuis/OdorChromium (total) 7440-47-3 -- -- -- -- -- -- -- -- -- -- --Chromium III 16065-83-1 -- -- -- -- -- -- -- -- -- -- --Feb. 2016 (Rev. 3)ChemicalsCAS No.Summary of Vapor ESLs Subslab/Soil GasVapor Intrusion: Human Health Risk Levels (Table SG-1)Direct ExposureHuman Heath RiskLevels (Table IA-1)Subslab1/ Soil Gas (µg/m3)Indoor Air (µg/m3) Subslab/Soil GasVapor Intrusion: Odor Nuisance Levels (Table SG-2)Tier 1 ESLBasisTier 1 ESLBasisOdor Nuisance Levels (Table IA-2)12 of 15Vapor Summary ResidentialCommercial/ IndustrialResidentialCommercial/ IndustrialResidentialCommercial/ IndustrialFeb. 2016 (Rev. 3)ChemicalsCAS No.Summary of Vapor ESLs Subslab/Soil GasVapor Intrusion: Human Health Risk Levels (Table SG-1)Direct ExposureHuman Heath RiskLevels (Table IA-1)Subslab1/ Soil Gas (µg/m3)Indoor Air (µg/m3) Subslab/Soil GasVapor Intrusion: Odor Nuisance Levels (Table SG-2)Tier 1 ESLBasisTier 1 ESLBasisOdor Nuisance Levels (Table IA-2)Chromium VI18540-29-9 ----------------------Chrysene218-01-9 4.6E+01 1.1E+03 ---- 4.6E+01 Dir Exp 9.2E-02 1.1E+00 --9.2E-02 Dir ExpCobalt7440-48-4 ----------------------Copper7440-50-8 ----------------------Cyanide57-12-5 4.2E+02 3.5E+03 3.3E+05 6.5E+05 4.2E+02 Dir Exp 8.3E-01 3.5E+00 6.5E+02 8.3E-01 Dir ExpDibenz(a,h)anthracene53-70-3----------------------Dibromochloromethane124-48-1----------------------1,2-dibromo-3-chloropropane 96-12-8 8.4E-02 2.0E+00 ----8.4E-02 Dir Exp 1.7E-04 2.0E-03--1.7E-04 Dir Exp1,2-Dibromoethane106-93-4 2.3E+00 2.0E+01 1.0E+08 2.0E+08 2.3E+00 Dir Exp 4.7E-03 2.0E-02 2.0E+05 4.7E-03 Dir Exp1,2-Dichlorobenzene95-50-1 1.0E+05 8.8E+05 1.5E+08 3.1E+08 1.0E+05 Dir Exp 2.1E+02 8.8E+02 3.1E+05 2.1E+02 Dir Exp1,3-Dichlorobenzene541-73-1----------------------1,4-Dichlorobenzene106-46-7 1.3E+02 1.1E+03 5.5E+05 1.1E+06 1.3E+02 Dir Exp 2.6E-01 1.1E+00 1.1E+03 2.6E-01 Dir Exp3,3-Dichlorobenzidine91-94-1----------------------Dichlorodiphenyldichloroethane (DDD72-54-8----------------------Dichlorodiphenyldichloroethene (DDE72-55-9 1.4E+01 1.3E+02 ---- 1.4E+01 Dir Exp 2.9E-02 1.3E-01--2.9E-02 Dir ExpDichlorodiphenyltrichloroethane (DDT50-29-3 1.4E+01 1.3E+02 ---- 1.4E+01 Dir Exp 2.9E-02 1.3E-01--2.9E-02 Dir Exp1,1-Dichloroethane75-34-3 8.8E+02 7.7E+03 6.3E+07 1.3E+08 8.8E+02 Dir Exp 1.8E+00 7.7E+00 1.3E+05 1.8E+00 Dir Exp1,2-Dichloroethane107-06-2 5.4E+01 4.7E+02 1.2E+06 2.4E+06 5.4E+01 Dir Exp 1.1E-01 4.7E-01 2.4E+03 1.1E-01 Dir Exp1,1-Dichloroethene75-35-4 3.7E+04 3.1E+05 1.0E+09 2.0E+09 3.7E+04 Dir Exp 7.3E+01 3.1E+02 2.0E+06 7.3E+01 Dir Expcis-1,2-Dichloroethene156-59-2 4.2E+03 3.5E+04 ---- 4.2E+03 Dir Exp 8.3E+00 3.5E+01 -- 8.3E+00 Dir Exptrans-1,2-Dichloroethene156-60-5 4.2E+04 3.5E+05 3.4E+07 6.7E+07 4.2E+04 Dir Exp 8.3E+01 3.5E+02 6.7E+04 8.3E+01 Dir Exp2,4-Dichlorophenol120-83-2---- 7.0E+05 1.4E+06 7.0E+05 Nuis/Odor ---- 1.4E+03 1.4E+03 Nuis/Odor1,2-Dichloropropane78-87-5 1.4E+02 1.2E+03 6.0E+05 1.2E+06 1.4E+02 Dir Exp 2.8E-01 1.2E+00 1.2E+03 2.8E-01 Dir Exp1,3-Dichloropropene542-75-6 8.8E+01 7.7E+02 2.1E+06 4.2E+06 8.8E+01 Dir Exp 1.8E-01 7.7E-01 4.2E+03 1.8E-01 Dir ExpDieldrin60-57-1 3.1E-01 2.7E+00 ----3.1E-01 Dir Exp 6.1E-04 2.7E-03--6.1E-04 Dir ExpDiethyl phthalate84-66-2----------------------Dimethyl phthalate131-11-3----------------------2,4-Dimethylphenol105-67-9---- 5.0E+02 1.0E+03 5.0E+02 Nuis/Odor ---- 1.0E+00 1.0E+00 Nuis/Odor2,4-Dinitrophenol51-28-5----------------------2,4-Dinitrotoluene121-14-2----------------------1,4-Dioxane123-91-1 1.8E+02 1.6E+03 3.1E+08 6.1E+08 1.8E+02 Dir Exp 3.6E-01 1.6E+00 6.1E+05 3.6E-01 Dir ExpDioxin (2,3,7,8-TCDD)1746-01-6 ----------------------Endosulfan115-29-7----------------------Endrin72-20-8----------------------Ethylbenzene100-41-4 5.6E+02 4.9E+03 1.0E+06 2.0E+06 5.6E+02 Dir Exp 1.1E+00 4.9E+00 2.0E+03 1.1E+00 Dir Exp13 of 15Vapor Summary ResidentialCommercial/ IndustrialResidentialCommercial/ IndustrialResidentialCommercial/ IndustrialFeb. 2016 (Rev. 3)ChemicalsCAS No.Summary of Vapor ESLs Subslab/Soil GasVapor Intrusion: Human Health Risk Levels (Table SG-1)Direct ExposureHuman Heath RiskLevels (Table IA-1)Subslab1/ Soil Gas (µg/m3)Indoor Air (µg/m3) Subslab/Soil GasVapor Intrusion: Odor Nuisance Levels (Table SG-2)Tier 1 ESLBasisTier 1 ESLBasisOdor Nuisance Levels (Table IA-2)Fluoranthene206-44-0----------------------Fluorene86-73-7----------------------Heptachlor76-44-8 1.1E+00 9.4E+00 1.5E+05 3.0E+05 1.1E+00 Dir Exp 2.2E-03 9.4E-03 3.0E+02 2.2E-03 Dir ExpHeptachlor epoxide1024-57-3 5.4E-01 4.7E+00 1.5E+05 3.0E+05 5.4E-01 Dir Exp 1.1E-03 4.7E-03 3.0E+02 1.1E-03 Dir ExpHexachlorobenzene118-74-1 2.8E+00 2.4E+01 ---- 2.8E+00 Dir Exp 5.5E-03 2.4E-02--5.5E-03 Dir ExpHexachlorobutadiene87-68-3 6.4E+01 5.6E+02 6.0E+06 1.2E+07 6.4E+01 Dir Exp 1.3E-01 5.6E-01 1.2E+04 1.3E-01 Dir Exp-Hexachlorocyclohexane (Lindane)58-89-9----------------------Hexachloroethane67-72-1 1.3E+02 1.1E+03 ---- 1.3E+02 Dir Exp 2.6E-01 1.1E+00 --2.6E-01 Dir ExpIndeno(1,2,3-c,d)pyrene193-39-5----------------------Lead7439-92-1 ----------------------Mercury (elemental)7439-97-6 ----------------------Methoxychlor72-43-5----------------------Methylene chloride75-09-2 5.1E+02 1.2E+04 2.8E+08 5.6E+08 5.1E+02 Dir Exp 1.0E+00 1.2E+01 5.6E+05 1.0E+00 Dir ExpMethyl ethyl ketone78-93-3 2.6E+06 2.2E+07 1.6E+07 3.2E+07 2.6E+06 Dir Exp 5.2E+03 2.2E+04 3.2E+04 5.2E+03 Dir ExpMethyl isobutyl ketone108-10-1 1.6E+06 1.3E+07 2.1E+05 4.2E+05 2.1E+05 Nuis/Odor 3.1E+03 1.3E+04 4.2E+02 4.2E+02 Nuis/OdorMethyl mercury22967-92-6 ----------------------2-Methylnaphthalene91-57-6---- 3.4E+04 6.8E+04 3.4E+04 Nuis/Odor ---- 6.8E+01 6.8E+01 Nuis/OdorMethyl tertiary butyl ether (MTBE) 1634-04-4 5.4E+03 4.7E+04 2.7E+05 5.3E+05 5.4E+03 Dir Exp 1.1E+01 4.7E+01 5.3E+02 1.1E+01 Dir ExpMolybdenum7439-98-7 ----------------------Naphthalene91-20-3 4.1E+01 3.6E+02 2.2E+05 4.4E+05 4.1E+01 Dir Exp 8.3E-02 3.6E-01 4.4E+02 8.3E-02 Dir ExpNickel7440-02-0 ----------------------Pentachlorophenol87-86-5----------------------Perchlorate7790-98-9 ----------------------Phenanthrene85-01-8---- 2.8E+04 5.5E+04 2.8E+04 Nuis/Odor ---- 5.5E+01 5.5E+01 Nuis/OdorPhenol108-95-2---- 7.8E+04 1.6E+05 7.8E+04 Nuis/Odor ---- 1.6E+02 1.6E+02 Nuis/OdorPolychlorinated biphenyls (PCBs) 1336-36-3 2.5E+00 2.2E+01 ---- 2.5E+00 Dir Exp 4.9E-03 2.2E-02--4.9E-03 Dir ExpPyrene129-00-0----------------------Selenium7782-49-2 ----------------------Silver7440-22-4 ----------------------Styrene100-42-5 4.7E+05 3.9E+06 6.8E+05 1.4E+06 4.7E+05 Dir Exp 9.4E+02 3.9E+03 1.4E+03 9.4E+02 Dir Exptert-Butyl alcohol75-65-0----------------------1,1,1,2-Tetrachloroethane 630-20-6 1.9E+02 1.7E+03 ---- 1.9E+02 Dir Exp 3.8E-01 1.7E+00 --3.8E-01 Dir Exp1,1,2,2-Tetrachloroethane 79-34-5 2.4E+01 2.1E+02 5.2E+06 1.0E+07 2.4E+01 Dir Exp 4.8E-02 2.1E-01 1.0E+04 4.8E-02 Dir ExpTetrachloroethene127-18-4 2.4E+02 2.1E+03 1.6E+07 3.2E+07 2.4E+02 Dir Exp 4.8E-01 2.1E+00 3.2E+04 4.8E-01 Dir ExpThallium7440-28-0 ----------------------14 of 15Vapor Summary ResidentialCommercial/ IndustrialResidentialCommercial/ IndustrialResidentialCommercial/ IndustrialFeb. 2016 (Rev. 3)ChemicalsCAS No.Summary of Vapor ESLs Subslab/Soil GasVapor Intrusion: Human Health Risk Levels (Table SG-1)Direct ExposureHuman Heath RiskLevels (Table IA-1)Subslab1/ Soil Gas (µg/m3)Indoor Air (µg/m3) Subslab/Soil GasVapor Intrusion: Odor Nuisance Levels (Table SG-2)Tier 1 ESLBasisTier 1 ESLBasisOdor Nuisance Levels (Table IA-2)Toluene108-88-3 1.6E+05 1.3E+06 1.5E+07 3.0E+07 1.6E+05 Dir Exp 3.1E+02 1.3E+03 3.0E+04 3.1E+02 Dir ExpToxaphene8001-35-2 4.1E+00 3.6E+01 ---- 4.1E+00 Dir Exp 8.3E-03 3.6E-02--8.3E-03 Dir ExpTPH gasoline--3.0E+05 2.5E+06 5.0E+04 1.0E+05 5.0E+04 Nuis/Odor 5.9E+02 2.5E+03 1.0E+02 1.0E+02 Nuis/OdorTPH Stoddard solvent--6.8E+04 5.7E+05 5.0E+05 1.0E+06 6.8E+04 Dir Exp 1.4E+02 5.7E+02 1.0E+03 1.4E+02 Dir ExpTPH diesel--6.8E+04 5.7E+05 5.0E+05 1.0E+06 6.8E+04 Dir Exp 1.4E+02 5.7E+02 1.0E+03 1.4E+02 Dir ExpTPH motor oil------------------------1,2,4-Trichlorobenzene120-82-1 1.0E+03 8.8E+03 1.1E+07 2.2E+07 1.0E+03 Dir Exp 2.1E+00 8.8E+00 2.2E+04 2.1E+00 Dir Exp1,1,1-Trichloroethane71-55-6 5.2E+05 4.4E+06 3.3E+07 6.5E+07 5.2E+05 Dir Exp 1.0E+03 4.4E+03 6.5E+04 1.0E+03 Dir Exp1,1,2-Trichloroethane79-00-5 8.8E+01 7.7E+02 ---- 8.8E+01 Dir Exp 1.8E-01 7.7E-01--1.8E-01 Dir ExpTrichloroethene79-01-6 2.4E+02 3.0E+03 6.8E+08 1.4E+09 2.4E+02 Dir Exp 4.8E-01 3.0E+00 1.4E+06 4.8E-01 Dir Exp2,4,5-Trichlorophenol95-95-4----------------------2,4,6-Trichlorophenol88-06-2---- 1.5E+02 3.0E+02 1.5E+02 Nuis/Odor ----3.0E-01 3.0E-01 Nuis/OdorVanadium7440-62-2 ----------------------Vinyl chloride75-01-4 4.7E+00 1.6E+02 3.9E+08 7.7E+08 4.7E+00 Dir Exp 9.5E-03 1.6E-01 7.7E+05 9.5E-03 Dir ExpXylenes1330-20-7 5.2E+04 4.4E+05 2.2E+05 4.4E+05 5.2E+04 Dir Exp 1.0E+02 4.4E+02 4.4E+02 1.0E+02 Dir ExpZinc7440-66-6 ----------------------Notes:1 - Use of the subslab ESLs for the subslab line of evidence assumes an intact slab. See User's Guide Appendix B. Dir Exp - Direct ExposureNuis/Odor - Nuisance-OdorVI - Vapor Intrusion15 of 15Vapor Summary Project Number 2162RV43 April 5, 2024 E2C Remediation Appendix B APPENDIX B Site Investigation Field Notes Project Number 2162RV43 April 5, 2024 E2C Remediation Appendix C APPENDIX C Soil-Vapor Laboratory Analytical Report Enthalpy Analytical 931 West Barkley Ave Orange, CA 92868 (714) 771-6900 enthalpy.com Lab Job Number :504090 Report Level :II Report Date :03/24/2024 Analytical Report prepared for: Elliot Harro E2C Remediation 233 Technology Way, #7 Rocklin, CA 95765 Project: PG&E MGP - PG&E MGP David Tripp, Project Manager 657-581-4710 david.tripp@enthalpy.com This data package has been reviewed for technical correctness and completeness. Release of this data has been authorized by the Laboratory Manager or the Manager's designee, as verified by the above signature which applies to this PDF file as well as any associated electronic data deliverable files. The results contained in this report meet all requirements of NELAP and pertain only to those samples which were submitted for analysis. This report may be reproduced only in its entirety. CA ELAP# 1338, NELAP# 4038, SCAQMD LAP# 18LA0518, LACSD ID# 10105 Authorized for release by: 1 of 52 Sample Summary Elliot Harro E2C Remediation 233 Technology Way, #7 Rocklin, CA 95765 Lab Job #:504090 Project No:PG&E MGP Location:PG&E MGP Date Received:03/09/24 Sample ID Lab ID Collected Matrix SVP-15 504090-001 03/05/24 09:24 Air SVP-5 504090-002 03/05/24 09:27 Air SVP-6 504090-003 03/05/24 10:18 Air SVP-3 504090-004 03/05/24 10:30 Air SVP-12 504090-005 03/05/24 11:30 Air SVP-13 504090-006 03/05/24 11:47 Air SVP-9 504090-007 03/05/24 12:33 Air SVP-8 504090-008 03/05/24 14:04 Air SVP-7 504090-009 03/05/24 13:56 Air SVP-1 504090-010 03/05/24 12:34 Air SVP-2 504090-011 03/05/24 12:39 Air 2 of 52 Case Narrative E2C Remediation 233 Technology Way, #7 Rocklin, CA 95765 Elliot Harro Lab Job Number: 504090 Project No:PG&E MGP Location:PG&E MGP Date Received:03/09/24 This data package contains sample and QC results for eleven air samples, requested for the above referenced project on 03/08/24. The samples were received cold and intact. Volatile Organics in Air by MS (EPA TO-15): High response was observed for 2-hexanone in the CCV analyzed 03/12/24 12:16; affected data was qualified with "b". High recovery was observed for 2-hexanone in the BS for batch 335150; the associated RPD was within limits, and this analyte was not detected at or above the RL in the associated samples. No other analytical problems were encountered. Volatile Organics in Air GC - TO3 (EPA TO-3M): No analytical problems were encountered. 1 of 1 3 of 52 4 of 52 5 of 52 6 of 52 Elliot Harro E2C Remediation 233 Technology Way, #7 Rocklin, CA 95765 Lab Job #: 504090 Project No: PG&E MGP Location: PG&E MGP Date Received: 03/09/24 Sample ID:SVP-15 Lab ID:504090-001 Collected:03/05/24 09:24 Matrix:Air 504090-001 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist Method: EPA TO-15 Prep Method: METHOD 1,1-Difluoroethane ND ppbv 1.2 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,1-Difluoroethane ND ug/m3 3.2 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Freon 12 0.37 ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Freon 12 1.8 ug/m3 1.2 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Freon 114 ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Freon 114 ND ug/m3 1.7 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Chloromethane 0.80 ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Chloromethane 1.7 ug/m3 0.50 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Vinyl Chloride ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Vinyl Chloride ND ug/m3 0.61 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Bromomethane ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Bromomethane ND ug/m3 0.93 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Chloroethane ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Chloroethane ND ug/m3 0.63 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Trichlorofluoromethane ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Trichlorofluoromethane ND ug/m3 1.3 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,1-Dichloroethene ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,1-Dichloroethene ND ug/m3 0.95 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Freon 113 ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Freon 113 ND ug/m3 1.8 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Acetone 21 ppbv 1.2 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Acetone 50 ug/m3 2.9 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Carbon Disulfide 0.26 ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Carbon Disulfide 0.79 ug/m3 0.75 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Isopropanol (IPA)3.4 ppbv 1.2 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Isopropanol (IPA)8.4 ug/m3 2.9 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Methylene Chloride 0.53 ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Methylene Chloride 1.8 ug/m3 0.83 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC trans-1,2-Dichloroethene ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC trans-1,2-Dichloroethene ND ug/m3 0.95 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC MTBE ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC MTBE ND ug/m3 0.87 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC n-Hexane 0.87 ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC n-Hexane 3.1 ug/m3 0.85 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,1-Dichloroethane ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,1-Dichloroethane ND ug/m3 0.97 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Vinyl Acetate ND ppbv 1.2 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Vinyl Acetate ND ug/m3 4.2 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC cis-1,2-Dichloroethene ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC cis-1,2-Dichloroethene ND ug/m3 0.95 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 2-Butanone 2.9 ppbv 1.2 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 7 of 52 2-Butanone 8.6 ug/m3 3.5 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Chloroform ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Chloroform ND ug/m3 1.2 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,1,1-Trichloroethane ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,1,1-Trichloroethane ND ug/m3 1.3 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Carbon Tetrachloride ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Carbon Tetrachloride ND ug/m3 1.5 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Benzene 1.5 ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Benzene 4.9 ug/m3 0.77 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,2-Dichloroethane ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,2-Dichloroethane ND ug/m3 0.97 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Trichloroethene ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Trichloroethene ND ug/m3 1.3 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,2-Dichloropropane ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,2-Dichloropropane ND ug/m3 1.1 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Bromodichloromethane ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Bromodichloromethane ND ug/m3 1.6 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC cis-1,3-Dichloropropene ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC cis-1,3-Dichloropropene ND ug/m3 1.1 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 4-Methyl-2-Pentanone 0.26 ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 4-Methyl-2-Pentanone 1.1 ug/m3 0.98 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Toluene 0.82 ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Toluene 3.1 ug/m3 0.90 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC trans-1,3-Dichloropropene ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC trans-1,3-Dichloropropene ND ug/m3 1.1 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,1,2-Trichloroethane ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,1,2-Trichloroethane ND ug/m3 1.3 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Tetrachloroethene ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Tetrachloroethene ND ug/m3 1.6 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 2-Hexanone ND ppbv 0.60 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 2-Hexanone ND ug/m3 2.5 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Dibromochloromethane ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Dibromochloromethane ND ug/m3 2.0 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,2-Dibromoethane ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,2-Dibromoethane ND ug/m3 1.8 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Chlorobenzene ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Chlorobenzene ND ug/m3 1.1 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Ethylbenzene ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Ethylbenzene ND ug/m3 1.0 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC m,p-Xylenes ND ppbv 0.48 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC m,p-Xylenes ND ug/m3 2.1 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC o-Xylene ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC o-Xylene ND ug/m3 1.0 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Styrene ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Styrene ND ug/m3 1.0 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Bromoform ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Bromoform ND ug/m3 2.5 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,1,2,2-Tetrachloroethane ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,1,2,2-Tetrachloroethane ND ug/m3 1.6 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,1,1,2-Tetrachloroethane ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,1,1,2-Tetrachloroethane ND ug/m3 1.6 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 4-Ethyltoluene ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 504090-001 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 2 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 8 of 52 4-Ethyltoluene ND ug/m3 1.2 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,3,5-Trimethylbenzene ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,3,5-Trimethylbenzene ND ug/m3 1.2 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,2,4-Trimethylbenzene ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,2,4-Trimethylbenzene ND ug/m3 1.2 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,3-Dichlorobenzene ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,3-Dichlorobenzene ND ug/m3 1.4 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,4-Dichlorobenzene ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,4-Dichlorobenzene ND ug/m3 1.4 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Benzyl chloride ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Benzyl chloride ND ug/m3 1.2 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,2-Dichlorobenzene ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,2-Dichlorobenzene ND ug/m3 1.4 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,2,4-Trichlorobenzene ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 1,2,4-Trichlorobenzene ND ug/m3 1.8 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Hexachlorobutadiene ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Hexachlorobutadiene ND ug/m3 2.6 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Xylene (total)ND ppbv 0.24 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Xylene (total)ND ug/m3 1.0 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC Surrogates Limits Bromofluorobenzene 87%%REC 60-140 1.2 335273 03/13/24 21:00 03/13/24 21:00 MBC 504090-001 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 3 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 9 of 52 Sample ID:SVP-5 Lab ID:504090-002 Collected:03/05/24 09:27 Matrix:Air 504090-002 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist Method: EPA TO-15 Prep Method: METHOD 1,1-Difluoroethane ND ppbv 1.4 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,1-Difluoroethane ND ug/m3 3.8 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Freon 12 0.28 ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Freon 12 1.4 ug/m3 1.4 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Freon 114 ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Freon 114 ND ug/m3 2.0 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Chloromethane 0.63 ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Chloromethane 1.3 ug/m3 0.58 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Vinyl Chloride ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Vinyl Chloride ND ug/m3 0.72 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Bromomethane ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Bromomethane ND ug/m3 1.1 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Chloroethane ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Chloroethane ND ug/m3 0.74 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Trichlorofluoromethane ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Trichlorofluoromethane ND ug/m3 1.6 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,1-Dichloroethene ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,1-Dichloroethene ND ug/m3 1.1 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Freon 113 ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Freon 113 ND ug/m3 2.1 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Acetone 26 ppbv 1.4 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Acetone 63 ug/m3 3.3 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Carbon Disulfide 2.2 ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Carbon Disulfide 6.8 ug/m3 0.87 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Isopropanol (IPA)3.0 ppbv 1.4 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Isopropanol (IPA)7.4 ug/m3 3.4 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Methylene Chloride 0.30 ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Methylene Chloride 1.0 ug/m3 0.97 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ trans-1,2-Dichloroethene ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ trans-1,2-Dichloroethene ND ug/m3 1.1 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ MTBE ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ MTBE ND ug/m3 1.0 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ n-Hexane 3.6 ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ n-Hexane 13 ug/m3 0.99 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,1-Dichloroethane ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,1-Dichloroethane ND ug/m3 1.1 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Vinyl Acetate ND ppbv 1.4 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Vinyl Acetate ND ug/m3 4.9 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ cis-1,2-Dichloroethene ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ cis-1,2-Dichloroethene ND ug/m3 1.1 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 2-Butanone 5.1 ppbv 1.4 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 2-Butanone 15 ug/m3 4.1 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Chloroform ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Chloroform ND ug/m3 1.4 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,1,1-Trichloroethane ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 4 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 10 of 52 1,1,1-Trichloroethane ND ug/m3 1.5 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Carbon Tetrachloride ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Carbon Tetrachloride ND ug/m3 1.8 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Benzene 8.0 ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Benzene 26 ug/m3 0.89 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,2-Dichloroethane ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,2-Dichloroethane ND ug/m3 1.1 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Trichloroethene ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Trichloroethene ND ug/m3 1.5 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,2-Dichloropropane ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,2-Dichloropropane ND ug/m3 1.3 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Bromodichloromethane ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Bromodichloromethane ND ug/m3 1.9 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ cis-1,3-Dichloropropene ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ cis-1,3-Dichloropropene ND ug/m3 1.3 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 4-Methyl-2-Pentanone 0.41 ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 4-Methyl-2-Pentanone 1.7 ug/m3 1.1 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Toluene 2.0 ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Toluene 7.4 ug/m3 1.1 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ trans-1,3-Dichloropropene ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ trans-1,3-Dichloropropene ND ug/m3 1.3 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,1,2-Trichloroethane ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,1,2-Trichloroethane ND ug/m3 1.5 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Tetrachloroethene 2.0 ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Tetrachloroethene 13 ug/m3 1.9 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 2-Hexanone ND ppbv 0.70 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 2-Hexanone ND ug/m3 2.9 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Dibromochloromethane ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Dibromochloromethane ND ug/m3 2.4 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,2-Dibromoethane ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,2-Dibromoethane ND ug/m3 2.2 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Chlorobenzene ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Chlorobenzene ND ug/m3 1.3 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Ethylbenzene ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Ethylbenzene ND ug/m3 1.2 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ m,p-Xylenes ND ppbv 0.56 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ m,p-Xylenes ND ug/m3 2.4 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ o-Xylene ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ o-Xylene ND ug/m3 1.2 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Styrene 0.54 ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Styrene 2.3 ug/m3 1.2 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Bromoform ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Bromoform ND ug/m3 2.9 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,1,2,2-Tetrachloroethane ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,1,2,2-Tetrachloroethane ND ug/m3 1.9 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,1,1,2-Tetrachloroethane ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,1,1,2-Tetrachloroethane ND ug/m3 1.9 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 4-Ethyltoluene ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 4-Ethyltoluene ND ug/m3 1.4 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,3,5-Trimethylbenzene ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,3,5-Trimethylbenzene ND ug/m3 1.4 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,2,4-Trimethylbenzene ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 504090-002 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 5 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 11 of 52 1,2,4-Trimethylbenzene ND ug/m3 1.4 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,3-Dichlorobenzene ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,3-Dichlorobenzene ND ug/m3 1.7 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,4-Dichlorobenzene ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,4-Dichlorobenzene ND ug/m3 1.7 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Benzyl chloride ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Benzyl chloride ND ug/m3 1.4 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,2-Dichlorobenzene ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,2-Dichlorobenzene ND ug/m3 1.7 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,2,4-Trichlorobenzene ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ 1,2,4-Trichlorobenzene ND ug/m3 2.1 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Hexachlorobutadiene ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Hexachlorobutadiene ND ug/m3 3.0 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Xylene (total)ND ppbv 0.28 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Xylene (total)ND ug/m3 1.2 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Surrogates Limits Bromofluorobenzene 82%%REC 60-140 1.4 335150 03/13/24 07:39 03/13/24 07:39 ZNZ Method: EPA TO-3M TPH Gasoline 0.24 ppmv 0.035 1.4 335135 03/12/24 12:00 03/12/24 12:00 OHD TPH Gasoline 980 ug/m3 140 1.4 335135 03/12/24 12:00 03/12/24 12:00 OHD 504090-002 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 6 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 12 of 52 Sample ID:SVP-6 Lab ID:504090-003 Collected:03/05/24 10:18 Matrix:Air 504090-003 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist Method: EPA TO-15 Prep Method: METHOD 1,1-Difluoroethane ND ppbv 1.5 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,1-Difluoroethane ND ug/m3 4.1 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Freon 12 0.35 ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Freon 12 1.7 ug/m3 1.5 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Freon 114 ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Freon 114 ND ug/m3 2.1 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Chloromethane ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Chloromethane ND ug/m3 0.62 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Vinyl Chloride ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Vinyl Chloride ND ug/m3 0.77 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Bromomethane ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Bromomethane ND ug/m3 1.2 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Chloroethane ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Chloroethane ND ug/m3 0.79 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Trichlorofluoromethane ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Trichlorofluoromethane ND ug/m3 1.7 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,1-Dichloroethene ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,1-Dichloroethene ND ug/m3 1.2 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Freon 113 ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Freon 113 ND ug/m3 2.3 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Acetone 12 ppbv 1.5 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Acetone 30 ug/m3 3.6 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Carbon Disulfide 1.9 ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Carbon Disulfide 6.0 ug/m3 0.93 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Isopropanol (IPA)3.1 ppbv 1.5 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Isopropanol (IPA)7.6 ug/m3 3.7 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Methylene Chloride ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Methylene Chloride ND ug/m3 1.0 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ trans-1,2-Dichloroethene ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ trans-1,2-Dichloroethene ND ug/m3 1.2 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ MTBE ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ MTBE ND ug/m3 1.1 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ n-Hexane 1.4 ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ n-Hexane 5.1 ug/m3 1.1 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,1-Dichloroethane ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,1-Dichloroethane ND ug/m3 1.2 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Vinyl Acetate ND ppbv 1.5 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Vinyl Acetate ND ug/m3 5.3 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ cis-1,2-Dichloroethene ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ cis-1,2-Dichloroethene ND ug/m3 1.2 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 2-Butanone 2.8 ppbv 1.5 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 2-Butanone 8.2 ug/m3 4.4 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Chloroform ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Chloroform ND ug/m3 1.5 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,1,1-Trichloroethane ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 7 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 13 of 52 1,1,1-Trichloroethane ND ug/m3 1.6 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Carbon Tetrachloride ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Carbon Tetrachloride ND ug/m3 1.9 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Benzene 0.77 ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Benzene 2.5 ug/m3 0.96 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,2-Dichloroethane ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,2-Dichloroethane ND ug/m3 1.2 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Trichloroethene ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Trichloroethene ND ug/m3 1.6 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,2-Dichloropropane ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,2-Dichloropropane ND ug/m3 1.4 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Bromodichloromethane ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Bromodichloromethane ND ug/m3 2.0 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ cis-1,3-Dichloropropene ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ cis-1,3-Dichloropropene ND ug/m3 1.4 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 4-Methyl-2-Pentanone ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 4-Methyl-2-Pentanone ND ug/m3 1.2 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Toluene 0.38 ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Toluene 1.4 ug/m3 1.1 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ trans-1,3-Dichloropropene ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ trans-1,3-Dichloropropene ND ug/m3 1.4 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,1,2-Trichloroethane ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,1,2-Trichloroethane ND ug/m3 1.6 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Tetrachloroethene ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Tetrachloroethene ND ug/m3 2.0 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 2-Hexanone ND ppbv 0.75 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 2-Hexanone ND ug/m3 3.1 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Dibromochloromethane ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Dibromochloromethane ND ug/m3 2.6 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,2-Dibromoethane ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,2-Dibromoethane ND ug/m3 2.3 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Chlorobenzene ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Chlorobenzene ND ug/m3 1.4 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Ethylbenzene ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Ethylbenzene ND ug/m3 1.3 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ m,p-Xylenes ND ppbv 0.60 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ m,p-Xylenes ND ug/m3 2.6 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ o-Xylene ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ o-Xylene ND ug/m3 1.3 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Styrene ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Styrene ND ug/m3 1.3 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Bromoform ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Bromoform ND ug/m3 3.1 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,1,2,2-Tetrachloroethane ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,1,2,2-Tetrachloroethane ND ug/m3 2.1 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,1,1,2-Tetrachloroethane ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,1,1,2-Tetrachloroethane ND ug/m3 2.1 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 4-Ethyltoluene ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 4-Ethyltoluene ND ug/m3 1.5 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,3,5-Trimethylbenzene ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,3,5-Trimethylbenzene ND ug/m3 1.5 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,2,4-Trimethylbenzene ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 504090-003 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 8 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 14 of 52 1,2,4-Trimethylbenzene ND ug/m3 1.5 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,3-Dichlorobenzene ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,3-Dichlorobenzene ND ug/m3 1.8 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,4-Dichlorobenzene ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,4-Dichlorobenzene ND ug/m3 1.8 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Benzyl chloride ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Benzyl chloride ND ug/m3 1.6 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,2-Dichlorobenzene ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,2-Dichlorobenzene ND ug/m3 1.8 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,2,4-Trichlorobenzene ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ 1,2,4-Trichlorobenzene ND ug/m3 2.2 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Hexachlorobutadiene ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Hexachlorobutadiene ND ug/m3 3.2 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Xylene (total)ND ppbv 0.30 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Xylene (total)ND ug/m3 1.3 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Surrogates Limits Bromofluorobenzene 84%%REC 60-140 1.5 335150 03/13/24 08:12 03/13/24 08:12 ZNZ Method: EPA TO-3M TPH Gasoline 0.21 ppmv 0.039 1.6 335020 03/11/24 18:20 03/11/24 18:20 OHD TPH Gasoline 850 ug/m3 160 1.6 335020 03/11/24 18:20 03/11/24 18:20 OHD 504090-003 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 9 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 15 of 52 Sample ID:SVP-3 Lab ID:504090-004 Collected:03/05/24 10:30 Matrix:Air 504090-004 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist Method: EPA TO-15 Prep Method: METHOD 1,1-Difluoroethane ND ppbv 1.5 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,1-Difluoroethane ND ug/m3 4.1 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Freon 12 0.42 ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Freon 12 2.1 ug/m3 1.5 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Freon 114 ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Freon 114 ND ug/m3 2.1 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Chloromethane 1.4 ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Chloromethane 3.0 ug/m3 0.62 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Vinyl Chloride ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Vinyl Chloride ND ug/m3 0.77 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Bromomethane ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Bromomethane ND ug/m3 1.2 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Chloroethane ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Chloroethane ND ug/m3 0.79 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Trichlorofluoromethane ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Trichlorofluoromethane ND ug/m3 1.7 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,1-Dichloroethene ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,1-Dichloroethene ND ug/m3 1.2 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Freon 113 ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Freon 113 ND ug/m3 2.3 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Acetone 35 ppbv 1.5 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Acetone 83 ug/m3 3.6 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Carbon Disulfide 5.0 ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Carbon Disulfide 15 ug/m3 0.93 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Isopropanol (IPA)3.6 ppbv 1.5 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Isopropanol (IPA)8.9 ug/m3 3.7 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Methylene Chloride 0.37 ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Methylene Chloride 1.3 ug/m3 1.0 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ trans-1,2-Dichloroethene ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ trans-1,2-Dichloroethene ND ug/m3 1.2 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ MTBE ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ MTBE ND ug/m3 1.1 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ n-Hexane 16 ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ n-Hexane 56 ug/m3 1.1 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,1-Dichloroethane ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,1-Dichloroethane ND ug/m3 1.2 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Vinyl Acetate ND ppbv 1.5 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Vinyl Acetate ND ug/m3 5.3 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ cis-1,2-Dichloroethene ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ cis-1,2-Dichloroethene ND ug/m3 1.2 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 2-Butanone 8.3 ppbv 1.5 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 2-Butanone 24 ug/m3 4.4 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Chloroform ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Chloroform ND ug/m3 1.5 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,1,1-Trichloroethane ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 10 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 16 of 52 1,1,1-Trichloroethane ND ug/m3 1.6 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Carbon Tetrachloride ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Carbon Tetrachloride ND ug/m3 1.9 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Benzene 15 ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Benzene 49 ug/m3 0.96 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,2-Dichloroethane ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,2-Dichloroethane ND ug/m3 1.2 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Trichloroethene ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Trichloroethene ND ug/m3 1.6 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,2-Dichloropropane ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,2-Dichloropropane ND ug/m3 1.4 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Bromodichloromethane ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Bromodichloromethane ND ug/m3 2.0 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ cis-1,3-Dichloropropene ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ cis-1,3-Dichloropropene ND ug/m3 1.4 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 4-Methyl-2-Pentanone 0.54 ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 4-Methyl-2-Pentanone 2.2 ug/m3 1.2 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Toluene 7.0 ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Toluene 26 ug/m3 1.1 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ trans-1,3-Dichloropropene ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ trans-1,3-Dichloropropene ND ug/m3 1.4 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,1,2-Trichloroethane ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,1,2-Trichloroethane ND ug/m3 1.6 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Tetrachloroethene 1.1 ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Tetrachloroethene 7.7 ug/m3 2.0 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 2-Hexanone ND ppbv 0.75 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 2-Hexanone ND ug/m3 3.1 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Dibromochloromethane ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Dibromochloromethane ND ug/m3 2.6 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,2-Dibromoethane ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,2-Dibromoethane ND ug/m3 2.3 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Chlorobenzene ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Chlorobenzene ND ug/m3 1.4 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Ethylbenzene 1.5 ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Ethylbenzene 6.5 ug/m3 1.3 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ m,p-Xylenes 2.3 ppbv 0.60 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ m,p-Xylenes 9.8 ug/m3 2.6 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ o-Xylene 0.87 ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ o-Xylene 3.8 ug/m3 1.3 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Styrene 0.59 ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Styrene 2.5 ug/m3 1.3 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Bromoform ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Bromoform ND ug/m3 3.1 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,1,2,2-Tetrachloroethane ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,1,2,2-Tetrachloroethane ND ug/m3 2.1 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,1,1,2-Tetrachloroethane ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,1,1,2-Tetrachloroethane ND ug/m3 2.1 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 4-Ethyltoluene ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 4-Ethyltoluene ND ug/m3 1.5 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,3,5-Trimethylbenzene 0.63 ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,3,5-Trimethylbenzene 3.1 ug/m3 1.5 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,2,4-Trimethylbenzene 0.76 ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 504090-004 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 11 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 17 of 52 1,2,4-Trimethylbenzene 3.8 ug/m3 1.5 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,3-Dichlorobenzene ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,3-Dichlorobenzene ND ug/m3 1.8 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,4-Dichlorobenzene ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,4-Dichlorobenzene ND ug/m3 1.8 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Benzyl chloride ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Benzyl chloride ND ug/m3 1.6 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,2-Dichlorobenzene ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,2-Dichlorobenzene ND ug/m3 1.8 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,2,4-Trichlorobenzene ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ 1,2,4-Trichlorobenzene ND ug/m3 2.2 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Hexachlorobutadiene ND ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Hexachlorobutadiene ND ug/m3 3.2 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Xylene (total)3.1 ppbv 0.30 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Xylene (total)14 ug/m3 1.3 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Surrogates Limits Bromofluorobenzene 86%%REC 60-140 1.5 335150 03/13/24 08:45 03/13/24 08:45 ZNZ Method: EPA TO-3M TPH Gasoline 0.84 ppmv 0.038 1.5 335020 03/11/24 18:50 03/11/24 18:50 OHD TPH Gasoline 3,400 ug/m3 150 1.5 335020 03/11/24 18:50 03/11/24 18:50 OHD 504090-004 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 12 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 18 of 52 Sample ID:SVP-12 Lab ID:504090-005 Collected:03/05/24 11:30 Matrix:Air 504090-005 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist Method: EPA TO-15 Prep Method: METHOD 1,1-Difluoroethane ND ppbv 1.4 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,1-Difluoroethane ND ug/m3 3.8 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Freon 12 0.44 ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Freon 12 2.2 ug/m3 1.4 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Freon 114 ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Freon 114 ND ug/m3 2.0 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Chloromethane 0.82 ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Chloromethane 1.7 ug/m3 0.58 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Vinyl Chloride ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Vinyl Chloride ND ug/m3 0.72 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Bromomethane ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Bromomethane ND ug/m3 1.1 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Chloroethane ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Chloroethane ND ug/m3 0.74 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Trichlorofluoromethane ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Trichlorofluoromethane ND ug/m3 1.6 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,1-Dichloroethene ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,1-Dichloroethene ND ug/m3 1.1 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Freon 113 ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Freon 113 ND ug/m3 2.1 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Acetone 42 ppbv 1.4 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Acetone 100 ug/m3 3.3 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Carbon Disulfide 0.71 ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Carbon Disulfide 2.2 ug/m3 0.87 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Isopropanol (IPA)2.8 ppbv 1.4 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Isopropanol (IPA)6.9 ug/m3 3.4 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Methylene Chloride 0.44 ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Methylene Chloride 1.5 ug/m3 0.97 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC trans-1,2-Dichloroethene ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC trans-1,2-Dichloroethene ND ug/m3 1.1 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC MTBE ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC MTBE ND ug/m3 1.0 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC n-Hexane 2.5 ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC n-Hexane 8.6 ug/m3 0.99 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,1-Dichloroethane ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,1-Dichloroethane ND ug/m3 1.1 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Vinyl Acetate ND ppbv 1.4 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Vinyl Acetate ND ug/m3 4.9 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC cis-1,2-Dichloroethene ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC cis-1,2-Dichloroethene ND ug/m3 1.1 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 2-Butanone 8.1 ppbv 1.4 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 2-Butanone 24 ug/m3 4.1 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Chloroform ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Chloroform ND ug/m3 1.4 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,1,1-Trichloroethane ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 13 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 19 of 52 1,1,1-Trichloroethane ND ug/m3 1.5 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Carbon Tetrachloride ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Carbon Tetrachloride ND ug/m3 1.8 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Benzene 1.2 ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Benzene 4.0 ug/m3 0.89 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,2-Dichloroethane ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,2-Dichloroethane ND ug/m3 1.1 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Trichloroethene ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Trichloroethene ND ug/m3 1.5 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,2-Dichloropropane ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,2-Dichloropropane ND ug/m3 1.3 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Bromodichloromethane ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Bromodichloromethane ND ug/m3 1.9 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC cis-1,3-Dichloropropene ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC cis-1,3-Dichloropropene ND ug/m3 1.3 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 4-Methyl-2-Pentanone ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 4-Methyl-2-Pentanone ND ug/m3 1.1 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Toluene 1.3 ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Toluene 5.0 ug/m3 1.1 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC trans-1,3-Dichloropropene ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC trans-1,3-Dichloropropene ND ug/m3 1.3 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,1,2-Trichloroethane ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,1,2-Trichloroethane ND ug/m3 1.5 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Tetrachloroethene ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Tetrachloroethene ND ug/m3 1.9 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 2-Hexanone ND ppbv 0.70 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 2-Hexanone ND ug/m3 2.9 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Dibromochloromethane ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Dibromochloromethane ND ug/m3 2.4 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,2-Dibromoethane ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,2-Dibromoethane ND ug/m3 2.2 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Chlorobenzene ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Chlorobenzene ND ug/m3 1.3 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Ethylbenzene ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Ethylbenzene ND ug/m3 1.2 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC m,p-Xylenes ND ppbv 0.56 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC m,p-Xylenes ND ug/m3 2.4 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC o-Xylene ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC o-Xylene ND ug/m3 1.2 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Styrene ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Styrene ND ug/m3 1.2 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Bromoform ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Bromoform ND ug/m3 2.9 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,1,2,2-Tetrachloroethane ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,1,2,2-Tetrachloroethane ND ug/m3 1.9 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,1,1,2-Tetrachloroethane ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,1,1,2-Tetrachloroethane ND ug/m3 1.9 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 4-Ethyltoluene ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 4-Ethyltoluene ND ug/m3 1.4 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,3,5-Trimethylbenzene ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,3,5-Trimethylbenzene ND ug/m3 1.4 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,2,4-Trimethylbenzene ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 504090-005 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 14 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 20 of 52 1,2,4-Trimethylbenzene ND ug/m3 1.4 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,3-Dichlorobenzene ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,3-Dichlorobenzene ND ug/m3 1.7 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,4-Dichlorobenzene ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,4-Dichlorobenzene ND ug/m3 1.7 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Benzyl chloride ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Benzyl chloride ND ug/m3 1.4 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,2-Dichlorobenzene ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,2-Dichlorobenzene ND ug/m3 1.7 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,2,4-Trichlorobenzene ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 1,2,4-Trichlorobenzene ND ug/m3 2.1 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Hexachlorobutadiene ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Hexachlorobutadiene ND ug/m3 3.0 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Xylene (total)ND ppbv 0.28 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Xylene (total)ND ug/m3 1.2 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC Surrogates Limits Bromofluorobenzene 86%%REC 60-140 1.4 335273 03/13/24 21:33 03/13/24 21:33 MBC 504090-005 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 15 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 21 of 52 Sample ID:SVP-13 Lab ID:504090-006 Collected:03/05/24 11:47 Matrix:Air 504090-006 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist Method: EPA TO-15 Prep Method: METHOD 1,1-Difluoroethane ND ppbv 1.3 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,1-Difluoroethane ND ug/m3 3.5 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Freon 12 0.32 ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Freon 12 1.6 ug/m3 1.3 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Freon 114 ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Freon 114 ND ug/m3 1.8 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Chloromethane 0.27 ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Chloromethane 0.56 ug/m3 0.54 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Vinyl Chloride ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Vinyl Chloride ND ug/m3 0.66 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Bromomethane ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Bromomethane ND ug/m3 1.0 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Chloroethane ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Chloroethane ND ug/m3 0.69 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Trichlorofluoromethane ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Trichlorofluoromethane ND ug/m3 1.5 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,1-Dichloroethene ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,1-Dichloroethene ND ug/m3 1.0 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Freon 113 ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Freon 113 ND ug/m3 2.0 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Acetone 97 ppbv 4.2 4.2 335273 03/14/24 08:55 03/14/24 08:55 MBC Acetone 230 ug/m3 9.9 4.2 335273 03/14/24 08:55 03/14/24 08:55 MBC Carbon Disulfide 0.88 ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Carbon Disulfide 2.7 ug/m3 0.81 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Isopropanol (IPA)5.4 ppbv 1.3 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Isopropanol (IPA)13 ug/m3 3.2 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Methylene Chloride ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Methylene Chloride ND ug/m3 0.90 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC trans-1,2-Dichloroethene ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC trans-1,2-Dichloroethene ND ug/m3 1.0 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC MTBE ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC MTBE ND ug/m3 0.94 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC n-Hexane 2.5 ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC n-Hexane 9.0 ug/m3 0.92 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,1-Dichloroethane ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,1-Dichloroethane ND ug/m3 1.1 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Vinyl Acetate ND ppbv 1.3 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Vinyl Acetate ND ug/m3 4.6 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC cis-1,2-Dichloroethene ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC cis-1,2-Dichloroethene ND ug/m3 1.0 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 2-Butanone 25 ppbv 1.3 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 2-Butanone 72 ug/m3 3.8 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Chloroform ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Chloroform ND ug/m3 1.3 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,1,1-Trichloroethane ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 16 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 22 of 52 1,1,1-Trichloroethane ND ug/m3 1.4 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Carbon Tetrachloride ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Carbon Tetrachloride ND ug/m3 1.6 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Benzene 3.7 ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Benzene 12 ug/m3 0.83 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,2-Dichloroethane ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,2-Dichloroethane ND ug/m3 1.1 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Trichloroethene ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Trichloroethene ND ug/m3 1.4 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,2-Dichloropropane ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,2-Dichloropropane ND ug/m3 1.2 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Bromodichloromethane ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Bromodichloromethane ND ug/m3 1.7 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC cis-1,3-Dichloropropene ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC cis-1,3-Dichloropropene ND ug/m3 1.2 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 4-Methyl-2-Pentanone 0.99 ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 4-Methyl-2-Pentanone 4.1 ug/m3 1.1 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Toluene 1.9 ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Toluene 7.2 ug/m3 0.98 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC trans-1,3-Dichloropropene ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC trans-1,3-Dichloropropene ND ug/m3 1.2 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,1,2-Trichloroethane ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,1,2-Trichloroethane ND ug/m3 1.4 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Tetrachloroethene 1.5 ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Tetrachloroethene 10 ug/m3 1.8 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 2-Hexanone 1.8 ppbv 0.65 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 2-Hexanone 7.5 ug/m3 2.7 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Dibromochloromethane ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Dibromochloromethane ND ug/m3 2.2 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,2-Dibromoethane ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,2-Dibromoethane ND ug/m3 2.0 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Chlorobenzene ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Chlorobenzene ND ug/m3 1.2 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Ethylbenzene 0.30 ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Ethylbenzene 1.3 ug/m3 1.1 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC m,p-Xylenes ND ppbv 0.52 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC m,p-Xylenes ND ug/m3 2.3 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC o-Xylene ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC o-Xylene ND ug/m3 1.1 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Styrene 0.41 ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Styrene 1.8 ug/m3 1.1 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Bromoform ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Bromoform ND ug/m3 2.7 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,1,2,2-Tetrachloroethane ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,1,2,2-Tetrachloroethane ND ug/m3 1.8 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,1,1,2-Tetrachloroethane ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,1,1,2-Tetrachloroethane ND ug/m3 1.8 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 4-Ethyltoluene ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 4-Ethyltoluene ND ug/m3 1.3 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,3,5-Trimethylbenzene ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,3,5-Trimethylbenzene ND ug/m3 1.3 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,2,4-Trimethylbenzene ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 504090-006 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 17 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 23 of 52 1,2,4-Trimethylbenzene ND ug/m3 1.3 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,3-Dichlorobenzene ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,3-Dichlorobenzene ND ug/m3 1.6 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,4-Dichlorobenzene ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,4-Dichlorobenzene ND ug/m3 1.6 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Benzyl chloride ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Benzyl chloride ND ug/m3 1.3 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,2-Dichlorobenzene ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,2-Dichlorobenzene ND ug/m3 1.6 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,2,4-Trichlorobenzene ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 1,2,4-Trichlorobenzene ND ug/m3 1.9 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Hexachlorobutadiene ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Hexachlorobutadiene ND ug/m3 2.8 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Xylene (total)ND ppbv 0.26 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Xylene (total)ND ug/m3 1.1 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC Surrogates Limits Bromofluorobenzene 87%%REC 60-140 1.3 335273 03/13/24 22:05 03/13/24 22:05 MBC 504090-006 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 18 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 24 of 52 Sample ID:SVP-9 Lab ID:504090-007 Collected:03/05/24 12:33 Matrix:Air 504090-007 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist Method: EPA TO-15 Prep Method: METHOD 1,1-Difluoroethane ND ppbv 1.3 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,1-Difluoroethane ND ug/m3 3.5 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Freon 12 0.38 ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Freon 12 1.9 ug/m3 1.3 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Freon 114 ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Freon 114 ND ug/m3 1.8 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Chloromethane ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Chloromethane ND ug/m3 0.54 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Vinyl Chloride ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Vinyl Chloride ND ug/m3 0.66 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Bromomethane ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Bromomethane ND ug/m3 1.0 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Chloroethane ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Chloroethane ND ug/m3 0.69 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Trichlorofluoromethane ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Trichlorofluoromethane ND ug/m3 1.5 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,1-Dichloroethene ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,1-Dichloroethene ND ug/m3 1.0 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Freon 113 ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Freon 113 ND ug/m3 2.0 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Acetone 24 ppbv 1.3 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Acetone 57 ug/m3 3.1 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Carbon Disulfide 0.30 ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Carbon Disulfide 0.92 ug/m3 0.81 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Isopropanol (IPA)2.6 ppbv 1.3 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Isopropanol (IPA)6.5 ug/m3 3.2 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Methylene Chloride ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Methylene Chloride ND ug/m3 0.90 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC trans-1,2-Dichloroethene ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC trans-1,2-Dichloroethene ND ug/m3 1.0 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC MTBE ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC MTBE ND ug/m3 0.94 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC n-Hexane ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC n-Hexane ND ug/m3 0.92 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,1-Dichloroethane ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,1-Dichloroethane ND ug/m3 1.1 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Vinyl Acetate ND ppbv 1.3 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Vinyl Acetate ND ug/m3 4.6 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC cis-1,2-Dichloroethene ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC cis-1,2-Dichloroethene ND ug/m3 1.0 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 2-Butanone 7.2 ppbv 1.3 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 2-Butanone 21 ug/m3 3.8 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Chloroform ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Chloroform ND ug/m3 1.3 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,1,1-Trichloroethane ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 19 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 25 of 52 1,1,1-Trichloroethane ND ug/m3 1.4 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Carbon Tetrachloride ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Carbon Tetrachloride ND ug/m3 1.6 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Benzene ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Benzene ND ug/m3 0.83 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,2-Dichloroethane ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,2-Dichloroethane ND ug/m3 1.1 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Trichloroethene ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Trichloroethene ND ug/m3 1.4 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,2-Dichloropropane ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,2-Dichloropropane ND ug/m3 1.2 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Bromodichloromethane ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Bromodichloromethane ND ug/m3 1.7 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC cis-1,3-Dichloropropene ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC cis-1,3-Dichloropropene ND ug/m3 1.2 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 4-Methyl-2-Pentanone 0.35 ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 4-Methyl-2-Pentanone 1.4 ug/m3 1.1 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Toluene ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Toluene ND ug/m3 0.98 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC trans-1,3-Dichloropropene ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC trans-1,3-Dichloropropene ND ug/m3 1.2 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,1,2-Trichloroethane ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,1,2-Trichloroethane ND ug/m3 1.4 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Tetrachloroethene ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Tetrachloroethene ND ug/m3 1.8 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 2-Hexanone 1.4 ppbv 0.65 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 2-Hexanone 5.8 ug/m3 2.7 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Dibromochloromethane ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Dibromochloromethane ND ug/m3 2.2 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,2-Dibromoethane ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,2-Dibromoethane ND ug/m3 2.0 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Chlorobenzene ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Chlorobenzene ND ug/m3 1.2 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Ethylbenzene ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Ethylbenzene ND ug/m3 1.1 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC m,p-Xylenes ND ppbv 0.52 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC m,p-Xylenes ND ug/m3 2.3 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC o-Xylene ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC o-Xylene ND ug/m3 1.1 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Styrene ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Styrene ND ug/m3 1.1 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Bromoform ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Bromoform ND ug/m3 2.7 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,1,2,2-Tetrachloroethane ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,1,2,2-Tetrachloroethane ND ug/m3 1.8 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,1,1,2-Tetrachloroethane ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,1,1,2-Tetrachloroethane ND ug/m3 1.8 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 4-Ethyltoluene ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 4-Ethyltoluene ND ug/m3 1.3 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,3,5-Trimethylbenzene ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,3,5-Trimethylbenzene ND ug/m3 1.3 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,2,4-Trimethylbenzene ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 504090-007 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 20 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 26 of 52 1,2,4-Trimethylbenzene ND ug/m3 1.3 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,3-Dichlorobenzene ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,3-Dichlorobenzene ND ug/m3 1.6 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,4-Dichlorobenzene ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,4-Dichlorobenzene ND ug/m3 1.6 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Benzyl chloride ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Benzyl chloride ND ug/m3 1.3 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,2-Dichlorobenzene ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,2-Dichlorobenzene ND ug/m3 1.6 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,2,4-Trichlorobenzene ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 1,2,4-Trichlorobenzene ND ug/m3 1.9 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Hexachlorobutadiene ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Hexachlorobutadiene ND ug/m3 2.8 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Xylene (total)ND ppbv 0.26 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Xylene (total)ND ug/m3 1.1 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC Surrogates Limits Bromofluorobenzene 88%%REC 60-140 1.3 335273 03/13/24 22:38 03/13/24 22:38 MBC 504090-007 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 21 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 27 of 52 Sample ID:SVP-8 Lab ID:504090-008 Collected:03/05/24 14:04 Matrix:Air 504090-008 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist Method: EPA TO-15 Prep Method: METHOD 1,1-Difluoroethane ND ppbv 5.2 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,1-Difluoroethane ND ug/m3 14 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Freon 12 ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Freon 12 ND ug/m3 5.1 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Freon 114 ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Freon 114 ND ug/m3 7.3 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Chloromethane 2.0 ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Chloromethane 4.2 ug/m3 2.1 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Vinyl Chloride ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Vinyl Chloride ND ug/m3 2.7 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Bromomethane ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Bromomethane ND ug/m3 4.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Chloroethane ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Chloroethane ND ug/m3 2.7 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Trichlorofluoromethane ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Trichlorofluoromethane ND ug/m3 5.8 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,1-Dichloroethene ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,1-Dichloroethene ND ug/m3 4.1 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Freon 113 ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Freon 113 ND ug/m3 8.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Acetone 120 ppbv 5.2 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Acetone 280 ug/m3 12 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Carbon Disulfide 7.6 ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Carbon Disulfide 24 ug/m3 3.2 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Isopropanol (IPA)17 ppbv 5.2 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Isopropanol (IPA)43 ug/m3 13 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Methylene Chloride ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Methylene Chloride ND ug/m3 3.6 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC trans-1,2-Dichloroethene ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC trans-1,2-Dichloroethene ND ug/m3 4.1 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC MTBE ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC MTBE ND ug/m3 3.7 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC n-Hexane 11 ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC n-Hexane 39 ug/m3 3.7 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,1-Dichloroethane ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,1-Dichloroethane ND ug/m3 4.2 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Vinyl Acetate ND ppbv 5.2 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Vinyl Acetate ND ug/m3 18 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC cis-1,2-Dichloroethene ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC cis-1,2-Dichloroethene ND ug/m3 4.1 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 2-Butanone 25 ppbv 5.2 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 2-Butanone 75 ug/m3 15 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Chloroform ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Chloroform ND ug/m3 5.1 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,1,1-Trichloroethane ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 22 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 28 of 52 1,1,1-Trichloroethane ND ug/m3 5.7 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Carbon Tetrachloride ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Carbon Tetrachloride ND ug/m3 6.5 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Benzene 23 ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Benzene 73 ug/m3 3.3 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,2-Dichloroethane ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,2-Dichloroethane ND ug/m3 4.2 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Trichloroethene ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Trichloroethene ND ug/m3 5.6 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,2-Dichloropropane ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,2-Dichloropropane ND ug/m3 4.8 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Bromodichloromethane ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Bromodichloromethane ND ug/m3 7.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC cis-1,3-Dichloropropene ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC cis-1,3-Dichloropropene ND ug/m3 4.7 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 4-Methyl-2-Pentanone 1.3 ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 4-Methyl-2-Pentanone 5.2 ug/m3 4.3 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Toluene 7.1 ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Toluene 27 ug/m3 3.9 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC trans-1,3-Dichloropropene ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC trans-1,3-Dichloropropene ND ug/m3 4.7 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,1,2-Trichloroethane ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,1,2-Trichloroethane ND ug/m3 5.7 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Tetrachloroethene ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Tetrachloroethene ND ug/m3 7.1 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 2-Hexanone ND ppbv 2.6 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 2-Hexanone ND ug/m3 11 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Dibromochloromethane ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Dibromochloromethane ND ug/m3 8.9 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,2-Dibromoethane ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,2-Dibromoethane ND ug/m3 8.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Chlorobenzene ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Chlorobenzene ND ug/m3 4.8 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Ethylbenzene ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Ethylbenzene ND ug/m3 4.5 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC m,p-Xylenes ND ppbv 2.1 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC m,p-Xylenes ND ug/m3 9.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC o-Xylene ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC o-Xylene ND ug/m3 4.5 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Styrene 1.2 ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Styrene 5.0 ug/m3 4.4 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Bromoform ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Bromoform ND ug/m3 11 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,1,2,2-Tetrachloroethane ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,1,2,2-Tetrachloroethane ND ug/m3 7.1 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,1,1,2-Tetrachloroethane ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,1,1,2-Tetrachloroethane ND ug/m3 7.1 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 4-Ethyltoluene ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 4-Ethyltoluene ND ug/m3 5.1 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,3,5-Trimethylbenzene ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,3,5-Trimethylbenzene ND ug/m3 5.1 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,2,4-Trimethylbenzene ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 504090-008 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 23 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 29 of 52 1,2,4-Trimethylbenzene ND ug/m3 5.1 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,3-Dichlorobenzene ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,3-Dichlorobenzene ND ug/m3 6.3 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,4-Dichlorobenzene ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,4-Dichlorobenzene ND ug/m3 6.3 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Benzyl chloride ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Benzyl chloride ND ug/m3 5.4 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,2-Dichlorobenzene ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,2-Dichlorobenzene ND ug/m3 6.3 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,2,4-Trichlorobenzene ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 1,2,4-Trichlorobenzene ND ug/m3 7.7 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Hexachlorobutadiene ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Hexachlorobutadiene ND ug/m3 11 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Xylene (total)ND ppbv 1.0 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Xylene (total)ND ug/m3 4.5 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC Surrogates Limits Bromofluorobenzene 89%%REC 60-140 5.2 335273 03/13/24 23:10 03/13/24 23:10 MBC 504090-008 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 24 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 30 of 52 Sample ID:SVP-7 Lab ID:504090-009 Collected:03/05/24 13:56 Matrix:Air 504090-009 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist Method: EPA TO-15 Prep Method: METHOD 1,1-Difluoroethane ND ppbv 1.2 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,1-Difluoroethane ND ug/m3 3.2 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Freon 12 0.34 ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Freon 12 1.7 ug/m3 1.2 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Freon 114 ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Freon 114 ND ug/m3 1.7 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Chloromethane ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Chloromethane ND ug/m3 0.50 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Vinyl Chloride ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Vinyl Chloride ND ug/m3 0.61 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Bromomethane ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Bromomethane ND ug/m3 0.93 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Chloroethane ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Chloroethane ND ug/m3 0.63 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Trichlorofluoromethane ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Trichlorofluoromethane ND ug/m3 1.3 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,1-Dichloroethene ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,1-Dichloroethene ND ug/m3 0.95 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Freon 113 ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Freon 113 ND ug/m3 1.8 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Acetone 12 ppbv 1.2 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Acetone 28 ug/m3 2.9 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Carbon Disulfide 0.39 ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Carbon Disulfide 1.2 ug/m3 0.75 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Isopropanol (IPA)1.4 ppbv 1.2 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Isopropanol (IPA)3.4 ug/m3 2.9 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Methylene Chloride ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Methylene Chloride ND ug/m3 0.83 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC trans-1,2-Dichloroethene ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC trans-1,2-Dichloroethene ND ug/m3 0.95 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC MTBE ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC MTBE ND ug/m3 0.87 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC n-Hexane ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC n-Hexane ND ug/m3 0.85 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,1-Dichloroethane ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,1-Dichloroethane ND ug/m3 0.97 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Vinyl Acetate ND ppbv 1.2 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Vinyl Acetate ND ug/m3 4.2 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC cis-1,2-Dichloroethene ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC cis-1,2-Dichloroethene ND ug/m3 0.95 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 2-Butanone 4.8 ppbv 1.2 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 2-Butanone 14 ug/m3 3.5 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Chloroform 0.45 ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Chloroform 2.2 ug/m3 1.2 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,1,1-Trichloroethane ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 25 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 31 of 52 1,1,1-Trichloroethane ND ug/m3 1.3 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Carbon Tetrachloride ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Carbon Tetrachloride ND ug/m3 1.5 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Benzene ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Benzene ND ug/m3 0.77 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,2-Dichloroethane ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,2-Dichloroethane ND ug/m3 0.97 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Trichloroethene ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Trichloroethene ND ug/m3 1.3 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,2-Dichloropropane ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,2-Dichloropropane ND ug/m3 1.1 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Bromodichloromethane ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Bromodichloromethane ND ug/m3 1.6 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC cis-1,3-Dichloropropene ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC cis-1,3-Dichloropropene ND ug/m3 1.1 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 4-Methyl-2-Pentanone ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 4-Methyl-2-Pentanone ND ug/m3 0.98 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Toluene 0.33 ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Toluene 1.2 ug/m3 0.90 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC trans-1,3-Dichloropropene ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC trans-1,3-Dichloropropene ND ug/m3 1.1 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,1,2-Trichloroethane ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,1,2-Trichloroethane ND ug/m3 1.3 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Tetrachloroethene 0.42 ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Tetrachloroethene 2.8 ug/m3 1.6 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 2-Hexanone 0.77 ppbv 0.60 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 2-Hexanone 3.2 ug/m3 2.5 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Dibromochloromethane ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Dibromochloromethane ND ug/m3 2.0 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,2-Dibromoethane ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,2-Dibromoethane ND ug/m3 1.8 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Chlorobenzene ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Chlorobenzene ND ug/m3 1.1 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Ethylbenzene ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Ethylbenzene ND ug/m3 1.0 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC m,p-Xylenes ND ppbv 0.48 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC m,p-Xylenes ND ug/m3 2.1 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC o-Xylene ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC o-Xylene ND ug/m3 1.0 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Styrene ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Styrene ND ug/m3 1.0 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Bromoform ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Bromoform ND ug/m3 2.5 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,1,2,2-Tetrachloroethane ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,1,2,2-Tetrachloroethane ND ug/m3 1.6 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,1,1,2-Tetrachloroethane ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,1,1,2-Tetrachloroethane ND ug/m3 1.6 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 4-Ethyltoluene ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 4-Ethyltoluene ND ug/m3 1.2 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,3,5-Trimethylbenzene ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,3,5-Trimethylbenzene ND ug/m3 1.2 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,2,4-Trimethylbenzene ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 504090-009 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 26 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 32 of 52 1,2,4-Trimethylbenzene ND ug/m3 1.2 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,3-Dichlorobenzene ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,3-Dichlorobenzene ND ug/m3 1.4 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,4-Dichlorobenzene ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,4-Dichlorobenzene ND ug/m3 1.4 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Benzyl chloride ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Benzyl chloride ND ug/m3 1.2 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,2-Dichlorobenzene ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,2-Dichlorobenzene ND ug/m3 1.4 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,2,4-Trichlorobenzene ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 1,2,4-Trichlorobenzene ND ug/m3 1.8 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Hexachlorobutadiene ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Hexachlorobutadiene ND ug/m3 2.6 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Xylene (total)ND ppbv 0.24 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Xylene (total)ND ug/m3 1.0 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC Surrogates Limits Bromofluorobenzene 87%%REC 60-140 1.2 335273 03/13/24 23:43 03/13/24 23:43 MBC 504090-009 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 27 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 33 of 52 Sample ID:SVP-1 Lab ID:504090-010 Collected:03/05/24 12:34 Matrix:Air 504090-010 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist Method: EPA TO-15 Prep Method: METHOD 1,1-Difluoroethane ND ppbv 1.5 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,1-Difluoroethane ND ug/m3 4.1 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Freon 12 0.35 ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Freon 12 1.7 ug/m3 1.5 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Freon 114 ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Freon 114 ND ug/m3 2.1 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Chloromethane 0.46 ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Chloromethane 0.95 ug/m3 0.62 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Vinyl Chloride ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Vinyl Chloride ND ug/m3 0.77 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Bromomethane ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Bromomethane ND ug/m3 1.2 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Chloroethane ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Chloroethane ND ug/m3 0.79 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Trichlorofluoromethane ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Trichlorofluoromethane ND ug/m3 1.7 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,1-Dichloroethene ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,1-Dichloroethene ND ug/m3 1.2 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Freon 113 ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Freon 113 ND ug/m3 2.3 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Acetone 7.7 ppbv 1.5 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Acetone 18 ug/m3 3.6 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Carbon Disulfide ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Carbon Disulfide ND ug/m3 0.93 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Isopropanol (IPA)3.7 ppbv 1.5 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Isopropanol (IPA)9.0 ug/m3 3.7 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Methylene Chloride 0.35 ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Methylene Chloride 1.2 ug/m3 1.0 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ trans-1,2-Dichloroethene ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ trans-1,2-Dichloroethene ND ug/m3 1.2 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ MTBE ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ MTBE ND ug/m3 1.1 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ n-Hexane 0.33 ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ n-Hexane 1.2 ug/m3 1.1 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,1-Dichloroethane ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,1-Dichloroethane ND ug/m3 1.2 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Vinyl Acetate ND ppbv 1.5 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Vinyl Acetate ND ug/m3 5.3 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ cis-1,2-Dichloroethene ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ cis-1,2-Dichloroethene ND ug/m3 1.2 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 2-Butanone 3.5 ppbv 1.5 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 2-Butanone 10 ug/m3 4.4 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Chloroform ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Chloroform ND ug/m3 1.5 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,1,1-Trichloroethane ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 28 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 34 of 52 1,1,1-Trichloroethane ND ug/m3 1.6 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Carbon Tetrachloride ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Carbon Tetrachloride ND ug/m3 1.9 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Benzene ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Benzene ND ug/m3 0.96 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,2-Dichloroethane ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,2-Dichloroethane ND ug/m3 1.2 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Trichloroethene ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Trichloroethene ND ug/m3 1.6 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,2-Dichloropropane ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,2-Dichloropropane ND ug/m3 1.4 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Bromodichloromethane ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Bromodichloromethane ND ug/m3 2.0 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ cis-1,3-Dichloropropene ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ cis-1,3-Dichloropropene ND ug/m3 1.4 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 4-Methyl-2-Pentanone ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 4-Methyl-2-Pentanone ND ug/m3 1.2 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Toluene 0.43 ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Toluene 1.6 ug/m3 1.1 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ trans-1,3-Dichloropropene ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ trans-1,3-Dichloropropene ND ug/m3 1.4 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,1,2-Trichloroethane ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,1,2-Trichloroethane ND ug/m3 1.6 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Tetrachloroethene 1.4 ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Tetrachloroethene 9.4 ug/m3 2.0 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 2-Hexanone ND ppbv 0.75 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 2-Hexanone ND ug/m3 3.1 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Dibromochloromethane ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Dibromochloromethane ND ug/m3 2.6 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,2-Dibromoethane ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,2-Dibromoethane ND ug/m3 2.3 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Chlorobenzene ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Chlorobenzene ND ug/m3 1.4 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Ethylbenzene ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Ethylbenzene ND ug/m3 1.3 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ m,p-Xylenes ND ppbv 0.60 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ m,p-Xylenes ND ug/m3 2.6 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ o-Xylene ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ o-Xylene ND ug/m3 1.3 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Styrene ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Styrene ND ug/m3 1.3 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Bromoform ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Bromoform ND ug/m3 3.1 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,1,2,2-Tetrachloroethane ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,1,2,2-Tetrachloroethane ND ug/m3 2.1 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,1,1,2-Tetrachloroethane ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,1,1,2-Tetrachloroethane ND ug/m3 2.1 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 4-Ethyltoluene ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 4-Ethyltoluene ND ug/m3 1.5 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,3,5-Trimethylbenzene ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,3,5-Trimethylbenzene ND ug/m3 1.5 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,2,4-Trimethylbenzene ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 504090-010 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 29 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 35 of 52 1,2,4-Trimethylbenzene ND ug/m3 1.5 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,3-Dichlorobenzene ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,3-Dichlorobenzene ND ug/m3 1.8 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,4-Dichlorobenzene ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,4-Dichlorobenzene ND ug/m3 1.8 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Benzyl chloride ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Benzyl chloride ND ug/m3 1.6 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,2-Dichlorobenzene ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,2-Dichlorobenzene ND ug/m3 1.8 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,2,4-Trichlorobenzene ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ 1,2,4-Trichlorobenzene ND ug/m3 2.2 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Hexachlorobutadiene ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Hexachlorobutadiene ND ug/m3 3.2 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Xylene (total)ND ppbv 0.30 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Xylene (total)ND ug/m3 1.3 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Surrogates Limits Bromofluorobenzene 86%%REC 60-140 1.5 335150 03/13/24 09:17 03/13/24 09:17 ZNZ Method: EPA TO-3M TPH Gasoline 0.28 ppmv 0.038 1.5 335020 03/11/24 19:20 03/11/24 19:20 OHD TPH Gasoline 1,100 ug/m3 150 1.5 335020 03/11/24 19:20 03/11/24 19:20 OHD 504090-010 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 30 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 36 of 52 Sample ID:SVP-2 Lab ID:504090-011 Collected:03/05/24 12:39 Matrix:Air 504090-011 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist Method: EPA TO-15 Prep Method: METHOD 1,1-Difluoroethane ND ppbv 1.5 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,1-Difluoroethane ND ug/m3 4.1 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Freon 12 0.33 ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Freon 12 1.6 ug/m3 1.5 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Freon 114 ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Freon 114 ND ug/m3 2.1 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Chloromethane ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Chloromethane ND ug/m3 0.62 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Vinyl Chloride ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Vinyl Chloride ND ug/m3 0.77 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Bromomethane ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Bromomethane ND ug/m3 1.2 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Chloroethane ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Chloroethane ND ug/m3 0.79 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Trichlorofluoromethane ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Trichlorofluoromethane ND ug/m3 1.7 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,1-Dichloroethene ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,1-Dichloroethene ND ug/m3 1.2 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Freon 113 ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Freon 113 ND ug/m3 2.3 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Acetone 5.6 ppbv 1.5 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Acetone 13 ug/m3 3.6 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Carbon Disulfide 0.46 ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Carbon Disulfide 1.4 ug/m3 0.93 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Isopropanol (IPA)ND ppbv 1.5 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Isopropanol (IPA)ND ug/m3 3.7 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Methylene Chloride ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Methylene Chloride ND ug/m3 1.0 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ trans-1,2-Dichloroethene ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ trans-1,2-Dichloroethene ND ug/m3 1.2 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ MTBE ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ MTBE ND ug/m3 1.1 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ n-Hexane ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ n-Hexane ND ug/m3 1.1 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,1-Dichloroethane ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,1-Dichloroethane ND ug/m3 1.2 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Vinyl Acetate ND ppbv 1.5 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Vinyl Acetate ND ug/m3 5.3 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ cis-1,2-Dichloroethene ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ cis-1,2-Dichloroethene ND ug/m3 1.2 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 2-Butanone 3.0 ppbv 1.5 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 2-Butanone 9.0 ug/m3 4.4 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Chloroform ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Chloroform ND ug/m3 1.5 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,1,1-Trichloroethane ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 31 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 37 of 52 1,1,1-Trichloroethane ND ug/m3 1.6 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Carbon Tetrachloride ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Carbon Tetrachloride ND ug/m3 1.9 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Benzene ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Benzene ND ug/m3 0.96 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,2-Dichloroethane ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,2-Dichloroethane ND ug/m3 1.2 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Trichloroethene ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Trichloroethene ND ug/m3 1.6 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,2-Dichloropropane ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,2-Dichloropropane ND ug/m3 1.4 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Bromodichloromethane ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Bromodichloromethane ND ug/m3 2.0 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ cis-1,3-Dichloropropene ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ cis-1,3-Dichloropropene ND ug/m3 1.4 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 4-Methyl-2-Pentanone ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 4-Methyl-2-Pentanone ND ug/m3 1.2 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Toluene 2.1 ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Toluene 7.8 ug/m3 1.1 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ trans-1,3-Dichloropropene ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ trans-1,3-Dichloropropene ND ug/m3 1.4 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,1,2-Trichloroethane ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,1,2-Trichloroethane ND ug/m3 1.6 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Tetrachloroethene 4.3 ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Tetrachloroethene 29 ug/m3 2.0 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 2-Hexanone ND ppbv 0.75 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 2-Hexanone ND ug/m3 3.1 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Dibromochloromethane ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Dibromochloromethane ND ug/m3 2.6 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,2-Dibromoethane ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,2-Dibromoethane ND ug/m3 2.3 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Chlorobenzene ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Chlorobenzene ND ug/m3 1.4 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Ethylbenzene 0.30 ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Ethylbenzene 1.3 ug/m3 1.3 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ m,p-Xylenes 0.88 ppbv 0.60 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ m,p-Xylenes 3.8 ug/m3 2.6 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ o-Xylene ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ o-Xylene ND ug/m3 1.3 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Styrene ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Styrene ND ug/m3 1.3 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Bromoform ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Bromoform ND ug/m3 3.1 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,1,2,2-Tetrachloroethane ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,1,2,2-Tetrachloroethane ND ug/m3 2.1 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,1,1,2-Tetrachloroethane ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,1,1,2-Tetrachloroethane ND ug/m3 2.1 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 4-Ethyltoluene ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 4-Ethyltoluene ND ug/m3 1.5 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,3,5-Trimethylbenzene ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,3,5-Trimethylbenzene ND ug/m3 1.5 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,2,4-Trimethylbenzene ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 504090-011 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 32 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 38 of 52 1,2,4-Trimethylbenzene ND ug/m3 1.5 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,3-Dichlorobenzene ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,3-Dichlorobenzene ND ug/m3 1.8 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,4-Dichlorobenzene ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,4-Dichlorobenzene ND ug/m3 1.8 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Benzyl chloride ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Benzyl chloride ND ug/m3 1.6 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,2-Dichlorobenzene ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,2-Dichlorobenzene ND ug/m3 1.8 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,2,4-Trichlorobenzene ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ 1,2,4-Trichlorobenzene ND ug/m3 2.2 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Hexachlorobutadiene ND ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Hexachlorobutadiene ND ug/m3 3.2 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Xylene (total)0.88 ppbv 0.30 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Xylene (total)3.8 ug/m3 1.3 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Surrogates Limits Bromofluorobenzene 85%%REC 60-140 1.5 335150 03/13/24 09:50 03/13/24 09:50 ZNZ Method: EPA TO-3M TPH Gasoline 0.30 ppmv 0.038 1.5 335020 03/11/24 19:51 03/11/24 19:51 OHD TPH Gasoline 1,200 ug/m3 150 1.5 335020 03/11/24 19:51 03/11/24 19:51 OHD 504090-011 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist ND Not Detected 33 of 33 Analysis Results for 504090 Results for any subcontracted analyses are not included in this section. 39 of 52 Type:Lab Control Sample Lab ID:QC1135701 Batch:335150 Matrix:Air Method:EPA TO-15 Prep Method:METHOD QC1135701 Analyte Result Spiked Units Recovery Qual Limits 1,1-Difluoroethane 11.56 10.00 ppbv 116%70-130 Freon 12 11.08 10.00 ppbv 111%70-130 Freon 114 10.05 10.00 ppbv 101%70-130 Chloromethane 12.25 10.00 ppbv 122%70-130 Vinyl Chloride 11.96 10.00 ppbv 120%70-130 Bromomethane 10.75 10.00 ppbv 108%70-130 Chloroethane 11.74 10.00 ppbv 117%70-130 Trichlorofluoromethane 10.47 10.00 ppbv 105%70-130 1,1-Dichloroethene 11.68 10.00 ppbv 117%70-130 Freon 113 10.49 10.00 ppbv 105%70-130 Acetone 12.00 10.00 ppbv 120%70-130 Carbon Disulfide 11.22 10.00 ppbv 112%70-130 Isopropanol (IPA)12.51 10.00 ppbv 125%70-130 Methylene Chloride 10.68 10.00 ppbv 107%70-130 trans-1,2-Dichloroethene 11.07 10.00 ppbv 111%70-130 MTBE 10.80 10.00 ppbv 108%70-130 n-Hexane 12.06 10.00 ppbv 121%70-130 1,1-Dichloroethane 11.06 10.00 ppbv 111%70-130 Vinyl Acetate 10.95 10.00 ppbv 109%70-130 cis-1,2-Dichloroethene 11.77 10.00 ppbv 118%70-130 2-Butanone 11.93 10.00 ppbv 119%70-130 Chloroform 11.00 10.00 ppbv 110%70-130 1,1,1-Trichloroethane 10.35 10.00 ppbv 103%70-130 Carbon Tetrachloride 10.56 10.00 ppbv 106%70-130 Benzene 11.51 10.00 ppbv 115%70-130 1,2-Dichloroethane 11.64 10.00 ppbv 116%70-130 Trichloroethene 10.25 10.00 ppbv 102%70-130 1,2-Dichloropropane 11.93 10.00 ppbv 119%70-130 Bromodichloromethane 11.33 10.00 ppbv 113%70-130 cis-1,3-Dichloropropene 11.22 10.00 ppbv 112%70-130 4-Methyl-2-Pentanone 12.48 10.00 ppbv 125%70-130 Toluene 11.37 10.00 ppbv 114%70-130 trans-1,3-Dichloropropene 11.43 10.00 ppbv 114%70-130 1,1,2-Trichloroethane 11.05 10.00 ppbv 110%70-130 Tetrachloroethene 9.612 10.00 ppbv 96%70-130 2-Hexanone 13.06 10.00 ppbv 131%b,*70-130 Dibromochloromethane 10.49 10.00 ppbv 105%70-130 1,2-Dibromoethane 10.57 10.00 ppbv 106%70-130 Chlorobenzene 9.316 10.00 ppbv 93%70-130 Ethylbenzene 10.13 10.00 ppbv 101%70-130 m,p-Xylenes 20.91 20.00 ppbv 105%70-130 o-Xylene 10.37 10.00 ppbv 104%70-130 Styrene 10.32 10.00 ppbv 103%70-130 Bromoform 9.430 10.00 ppbv 94%70-130 1,1,2,2-Tetrachloroethane 10.25 10.00 ppbv 103%70-130 1,1,1,2-Tetrachloroethane 9.244 10.00 ppbv 92%70-130 4-Ethyltoluene 10.03 10.00 ppbv 100%70-130 1 of 13 Batch QC 40 of 52 1,3,5-Trimethylbenzene 9.868 10.00 ppbv 99%70-130 1,2,4-Trimethylbenzene 9.845 10.00 ppbv 98%70-130 1,3-Dichlorobenzene 9.558 10.00 ppbv 96%70-130 1,4-Dichlorobenzene 9.518 10.00 ppbv 95%70-130 Benzyl chloride 10.63 10.00 ppbv 106%70-130 1,2-Dichlorobenzene 9.354 10.00 ppbv 94%70-130 1,2,4-Trichlorobenzene 8.762 10.00 ppbv 88%70-130 Hexachlorobutadiene 8.536 10.00 ppbv 85%70-130 Surrogates Bromofluorobenzene 8.776 10.00 ppbv 88%60-140 QC1135701 Analyte Result Spiked Units Recovery Qual Limits 2 of 13 Batch QC 41 of 52 Type:Lab Control Sample Duplicate Lab ID:QC1135702 Batch:335150 Matrix:Air Method:EPA TO-15 Prep Method:METHOD QC1135702 Analyte Result Spiked Units Recovery Qual Limits RPD RPD Lim 1,1-Difluoroethane 11.55 10.00 ppbv 115%70-130 0 25 Freon 12 11.25 10.00 ppbv 112%70-130 1 25 Freon 114 10.34 10.00 ppbv 103%70-130 3 25 Chloromethane 12.36 10.00 ppbv 124%70-130 1 25 Vinyl Chloride 12.09 10.00 ppbv 121%70-130 1 25 Bromomethane 11.08 10.00 ppbv 111%70-130 3 25 Chloroethane 11.94 10.00 ppbv 119%70-130 2 25 Trichlorofluoromethane 10.77 10.00 ppbv 108%70-130 3 25 1,1-Dichloroethene 11.82 10.00 ppbv 118%70-130 1 25 Freon 113 10.87 10.00 ppbv 109%70-130 4 25 Acetone 11.92 10.00 ppbv 119%70-130 1 25 Carbon Disulfide 11.67 10.00 ppbv 117%70-130 4 25 Isopropanol (IPA)12.62 10.00 ppbv 126%70-130 1 25 Methylene Chloride 10.99 10.00 ppbv 110%70-130 3 25 trans-1,2-Dichloroethene 11.25 10.00 ppbv 112%70-130 2 25 MTBE 10.98 10.00 ppbv 110%70-130 2 25 n-Hexane 12.13 10.00 ppbv 121%70-130 1 25 1,1-Dichloroethane 11.26 10.00 ppbv 113%70-130 2 25 Vinyl Acetate 9.525 10.00 ppbv 95%70-130 14 25 cis-1,2-Dichloroethene 11.96 10.00 ppbv 120%70-130 2 25 2-Butanone 12.04 10.00 ppbv 120%70-130 1 25 Chloroform 11.05 10.00 ppbv 110%70-130 0 25 1,1,1-Trichloroethane 10.45 10.00 ppbv 105%70-130 1 25 Carbon Tetrachloride 10.89 10.00 ppbv 109%70-130 3 25 Benzene 11.68 10.00 ppbv 117%70-130 1 25 1,2-Dichloroethane 11.58 10.00 ppbv 116%70-130 1 25 Trichloroethene 10.13 10.00 ppbv 101%70-130 1 25 1,2-Dichloropropane 11.56 10.00 ppbv 116%70-130 3 25 Bromodichloromethane 10.97 10.00 ppbv 110%70-130 3 25 cis-1,3-Dichloropropene 11.15 10.00 ppbv 111%70-130 1 25 4-Methyl-2-Pentanone 12.40 10.00 ppbv 124%70-130 1 25 Toluene 11.24 10.00 ppbv 112%70-130 1 25 trans-1,3-Dichloropropene 11.28 10.00 ppbv 113%70-130 1 25 1,1,2-Trichloroethane 10.98 10.00 ppbv 110%70-130 1 25 Tetrachloroethene 9.597 10.00 ppbv 96%70-130 0 25 2-Hexanone 12.93 10.00 ppbv 129%b 70-130 1 25 Dibromochloromethane 10.32 10.00 ppbv 103%70-130 2 25 1,2-Dibromoethane 10.40 10.00 ppbv 104%70-130 2 25 Chlorobenzene 9.431 10.00 ppbv 94%70-130 1 25 Ethylbenzene 10.33 10.00 ppbv 103%70-130 2 25 m,p-Xylenes 20.95 20.00 ppbv 105%70-130 0 25 o-Xylene 10.38 10.00 ppbv 104%70-130 0 25 Styrene 10.29 10.00 ppbv 103%70-130 0 25 Bromoform 9.462 10.00 ppbv 95%70-130 0 25 1,1,2,2-Tetrachloroethane 10.31 10.00 ppbv 103%70-130 1 25 1,1,1,2-Tetrachloroethane 9.275 10.00 ppbv 93%70-130 0 25 3 of 13 Batch QC 42 of 52 4-Ethyltoluene 10.04 10.00 ppbv 100%70-130 0 25 1,3,5-Trimethylbenzene 10.01 10.00 ppbv 100%70-130 1 25 1,2,4-Trimethylbenzene 9.888 10.00 ppbv 99%70-130 0 25 1,3-Dichlorobenzene 9.618 10.00 ppbv 96%70-130 1 25 1,4-Dichlorobenzene 9.361 10.00 ppbv 94%70-130 2 25 Benzyl chloride 10.77 10.00 ppbv 108%70-130 1 25 1,2-Dichlorobenzene 9.463 10.00 ppbv 95%70-130 1 25 1,2,4-Trichlorobenzene 8.845 10.00 ppbv 88%70-130 1 25 Hexachlorobutadiene 8.688 10.00 ppbv 87%70-130 2 25 Surrogates Bromofluorobenzene 8.696 10.00 ppbv 87%60-140 QC1135702 Analyte Result Spiked Units Recovery Qual Limits RPD RPD Lim 4 of 13 Batch QC 43 of 52 Type:Blank Lab ID:QC1135703 Batch:335150 Matrix:Air Method:EPA TO-15 Prep Method:METHOD QC1135703 Analyte Result Qual Units RL Prepared Analyzed 1,1-Difluoroethane ND ppbv 1.0 03/12/24 15:43 03/12/24 15:43 Freon 12 ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Freon 114 ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Chloromethane ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Vinyl Chloride ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Bromomethane ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Chloroethane ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Trichlorofluoromethane ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 1,1-Dichloroethene ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Freon 113 ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Acetone ND ppbv 1.0 03/12/24 15:43 03/12/24 15:43 Carbon Disulfide ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Isopropanol (IPA)ND ppbv 1.0 03/12/24 15:43 03/12/24 15:43 Methylene Chloride ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 trans-1,2-Dichloroethene ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 MTBE ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 n-Hexane ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 1,1-Dichloroethane ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Vinyl Acetate ND ppbv 1.0 03/12/24 15:43 03/12/24 15:43 cis-1,2-Dichloroethene ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 2-Butanone ND ppbv 1.0 03/12/24 15:43 03/12/24 15:43 Chloroform ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 1,1,1-Trichloroethane ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Carbon Tetrachloride ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Benzene ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 1,2-Dichloroethane ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Trichloroethene ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 1,2-Dichloropropane ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Bromodichloromethane ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 cis-1,3-Dichloropropene ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 4-Methyl-2-Pentanone ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Toluene ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 trans-1,3-Dichloropropene ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 1,1,2-Trichloroethane ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Tetrachloroethene ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 2-Hexanone ND ppbv 0.50 03/12/24 15:43 03/12/24 15:43 Dibromochloromethane ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 1,2-Dibromoethane ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Chlorobenzene ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Ethylbenzene ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 m,p-Xylenes ND ppbv 0.40 03/12/24 15:43 03/12/24 15:43 o-Xylene ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Styrene ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Bromoform ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 1,1,2,2-Tetrachloroethane ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 1,1,1,2-Tetrachloroethane ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 4-Ethyltoluene ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 5 of 13 Batch QC 44 of 52 1,3,5-Trimethylbenzene ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 1,2,4-Trimethylbenzene ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 1,3-Dichlorobenzene ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 1,4-Dichlorobenzene ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Benzyl chloride ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 1,2-Dichlorobenzene ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 1,2,4-Trichlorobenzene ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Hexachlorobutadiene ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Xylene (total)ND ppbv 0.20 03/12/24 15:43 03/12/24 15:43 Surrogates Limits Bromofluorobenzene 84%%REC 60-140 03/12/24 15:43 03/12/24 15:43 QC1135703 Analyte Result Qual Units RL Prepared Analyzed 6 of 13 Batch QC 45 of 52 Type:Lab Control Sample Lab ID:QC1136098 Batch:335273 Matrix:Air Method:EPA TO-15 Prep Method:METHOD QC1136098 Analyte Result Spiked Units Recovery Qual Limits 1,1-Difluoroethane 11.34 10.00 ppbv 113%70-130 Freon 12 11.03 10.00 ppbv 110%70-130 Freon 114 10.04 10.00 ppbv 100%70-130 Chloromethane 12.12 10.00 ppbv 121%70-130 Vinyl Chloride 11.77 10.00 ppbv 118%70-130 Bromomethane 10.68 10.00 ppbv 107%70-130 Chloroethane 11.66 10.00 ppbv 117%70-130 Trichlorofluoromethane 10.50 10.00 ppbv 105%70-130 1,1-Dichloroethene 11.65 10.00 ppbv 117%70-130 Freon 113 10.56 10.00 ppbv 106%70-130 Acetone 11.29 10.00 ppbv 113%70-130 Carbon Disulfide 11.15 10.00 ppbv 112%70-130 Isopropanol (IPA)12.53 10.00 ppbv 125%70-130 Methylene Chloride 10.62 10.00 ppbv 106%70-130 trans-1,2-Dichloroethene 10.99 10.00 ppbv 110%70-130 MTBE 10.81 10.00 ppbv 108%70-130 n-Hexane 12.06 10.00 ppbv 121%70-130 1,1-Dichloroethane 11.07 10.00 ppbv 111%70-130 Vinyl Acetate 9.887 10.00 ppbv 99%70-130 cis-1,2-Dichloroethene 11.67 10.00 ppbv 117%70-130 2-Butanone 11.67 10.00 ppbv 117%70-130 Chloroform 10.83 10.00 ppbv 108%70-130 1,1,1-Trichloroethane 10.25 10.00 ppbv 102%70-130 Carbon Tetrachloride 10.38 10.00 ppbv 104%70-130 Benzene 11.39 10.00 ppbv 114%70-130 1,2-Dichloroethane 11.38 10.00 ppbv 114%70-130 Trichloroethene 9.763 10.00 ppbv 98%70-130 1,2-Dichloropropane 11.16 10.00 ppbv 112%70-130 Bromodichloromethane 10.77 10.00 ppbv 108%70-130 cis-1,3-Dichloropropene 10.83 10.00 ppbv 108%70-130 4-Methyl-2-Pentanone 11.77 10.00 ppbv 118%70-130 Toluene 10.79 10.00 ppbv 108%70-130 trans-1,3-Dichloropropene 10.76 10.00 ppbv 108%70-130 1,1,2-Trichloroethane 10.57 10.00 ppbv 106%70-130 Tetrachloroethene 9.800 10.00 ppbv 98%70-130 2-Hexanone 12.44 10.00 ppbv 124%70-130 Dibromochloromethane 9.902 10.00 ppbv 99%70-130 1,2-Dibromoethane 10.00 10.00 ppbv 100%70-130 Chlorobenzene 9.187 10.00 ppbv 92%70-130 Ethylbenzene 10.02 10.00 ppbv 100%70-130 m,p-Xylenes 20.06 20.00 ppbv 100%70-130 o-Xylene 10.11 10.00 ppbv 101%70-130 Styrene 10.02 10.00 ppbv 100%70-130 Bromoform 8.922 10.00 ppbv 89%70-130 1,1,2,2-Tetrachloroethane 9.954 10.00 ppbv 100%70-130 1,1,1,2-Tetrachloroethane 8.968 10.00 ppbv 90%70-130 4-Ethyltoluene 9.764 10.00 ppbv 98%70-130 7 of 13 Batch QC 46 of 52 1,3,5-Trimethylbenzene 9.736 10.00 ppbv 97%70-130 1,2,4-Trimethylbenzene 9.622 10.00 ppbv 96%70-130 1,3-Dichlorobenzene 9.044 10.00 ppbv 90%70-130 1,4-Dichlorobenzene 9.216 10.00 ppbv 92%70-130 Benzyl chloride 10.29 10.00 ppbv 103%70-130 1,2-Dichlorobenzene 9.322 10.00 ppbv 93%70-130 1,2,4-Trichlorobenzene 8.848 10.00 ppbv 88%70-130 Hexachlorobutadiene 8.532 10.00 ppbv 85%70-130 Surrogates Bromofluorobenzene 8.691 10.00 ppbv 87%60-140 QC1136098 Analyte Result Spiked Units Recovery Qual Limits 8 of 13 Batch QC 47 of 52 Type:Lab Control Sample Duplicate Lab ID:QC1136099 Batch:335273 Matrix:Air Method:EPA TO-15 Prep Method:METHOD QC1136099 Analyte Result Spiked Units Recovery Qual Limits RPD RPD Lim 1,1-Difluoroethane 11.06 10.00 ppbv 111%70-130 3 25 Freon 12 10.80 10.00 ppbv 108%70-130 2 25 Freon 114 9.910 10.00 ppbv 99%70-130 1 25 Chloromethane 11.76 10.00 ppbv 118%70-130 3 25 Vinyl Chloride 11.47 10.00 ppbv 115%70-130 3 25 Bromomethane 10.53 10.00 ppbv 105%70-130 1 25 Chloroethane 11.28 10.00 ppbv 113%70-130 3 25 Trichlorofluoromethane 10.35 10.00 ppbv 104%70-130 1 25 1,1-Dichloroethene 11.31 10.00 ppbv 113%70-130 3 25 Freon 113 10.38 10.00 ppbv 104%70-130 2 25 Acetone 11.06 10.00 ppbv 111%70-130 2 25 Carbon Disulfide 10.03 10.00 ppbv 100%70-130 11 25 Isopropanol (IPA)12.17 10.00 ppbv 122%70-130 3 25 Methylene Chloride 10.47 10.00 ppbv 105%70-130 1 25 trans-1,2-Dichloroethene 10.77 10.00 ppbv 108%70-130 2 25 MTBE 10.41 10.00 ppbv 104%70-130 4 25 n-Hexane 11.57 10.00 ppbv 116%70-130 4 25 1,1-Dichloroethane 10.63 10.00 ppbv 106%70-130 4 25 Vinyl Acetate 9.611 10.00 ppbv 96%70-130 3 25 cis-1,2-Dichloroethene 11.37 10.00 ppbv 114%70-130 3 25 2-Butanone 11.56 10.00 ppbv 116%70-130 1 25 Chloroform 10.62 10.00 ppbv 106%70-130 2 25 1,1,1-Trichloroethane 10.10 10.00 ppbv 101%70-130 1 25 Carbon Tetrachloride 10.25 10.00 ppbv 102%70-130 1 25 Benzene 11.16 10.00 ppbv 112%70-130 2 25 1,2-Dichloroethane 11.12 10.00 ppbv 111%70-130 2 25 Trichloroethene 9.947 10.00 ppbv 99%70-130 2 25 1,2-Dichloropropane 11.02 10.00 ppbv 110%70-130 1 25 Bromodichloromethane 10.66 10.00 ppbv 107%70-130 1 25 cis-1,3-Dichloropropene 10.69 10.00 ppbv 107%70-130 1 25 4-Methyl-2-Pentanone 11.77 10.00 ppbv 118%70-130 0 25 Toluene 10.77 10.00 ppbv 108%70-130 0 25 trans-1,3-Dichloropropene 10.79 10.00 ppbv 108%70-130 0 25 1,1,2-Trichloroethane 10.51 10.00 ppbv 105%70-130 1 25 Tetrachloroethene 9.764 10.00 ppbv 98%70-130 0 25 2-Hexanone 12.42 10.00 ppbv 124%70-130 0 25 Dibromochloromethane 9.769 10.00 ppbv 98%70-130 1 25 1,2-Dibromoethane 10.03 10.00 ppbv 100%70-130 0 25 Chlorobenzene 9.140 10.00 ppbv 91%70-130 1 25 Ethylbenzene 9.936 10.00 ppbv 99%70-130 1 25 m,p-Xylenes 20.27 20.00 ppbv 101%70-130 1 25 o-Xylene 10.02 10.00 ppbv 100%70-130 1 25 Styrene 10.01 10.00 ppbv 100%70-130 0 25 Bromoform 8.736 10.00 ppbv 87%70-130 2 25 1,1,2,2-Tetrachloroethane 9.893 10.00 ppbv 99%70-130 1 25 1,1,1,2-Tetrachloroethane 8.964 10.00 ppbv 90%70-130 0 25 9 of 13 Batch QC 48 of 52 4-Ethyltoluene 9.596 10.00 ppbv 96%70-130 2 25 1,3,5-Trimethylbenzene 9.746 10.00 ppbv 97%70-130 0 25 1,2,4-Trimethylbenzene 9.643 10.00 ppbv 96%70-130 0 25 1,3-Dichlorobenzene 9.322 10.00 ppbv 93%70-130 3 25 1,4-Dichlorobenzene 9.026 10.00 ppbv 90%70-130 2 25 Benzyl chloride 10.46 10.00 ppbv 105%70-130 2 25 1,2-Dichlorobenzene 9.192 10.00 ppbv 92%70-130 1 25 1,2,4-Trichlorobenzene 8.717 10.00 ppbv 87%70-130 1 25 Hexachlorobutadiene 8.399 10.00 ppbv 84%70-130 2 25 Surrogates Bromofluorobenzene 8.730 10.00 ppbv 87%60-140 QC1136099 Analyte Result Spiked Units Recovery Qual Limits RPD RPD Lim 10 of 13 Batch QC 49 of 52 Type:Blank Lab ID:QC1136100 Batch:335273 Matrix:Air Method:EPA TO-15 Prep Method:METHOD QC1136100 Analyte Result Qual Units RL Prepared Analyzed 1,1-Difluoroethane ND ppbv 1.0 03/13/24 15:11 03/13/24 15:11 Freon 12 ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Freon 114 ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Chloromethane ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Vinyl Chloride ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Bromomethane ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Chloroethane ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Trichlorofluoromethane ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 1,1-Dichloroethene ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Freon 113 ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Acetone ND ppbv 1.0 03/13/24 15:11 03/13/24 15:11 Carbon Disulfide ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Isopropanol (IPA)ND ppbv 1.0 03/13/24 15:11 03/13/24 15:11 Methylene Chloride ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 trans-1,2-Dichloroethene ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 MTBE ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 n-Hexane ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 1,1-Dichloroethane ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Vinyl Acetate ND ppbv 1.0 03/13/24 15:11 03/13/24 15:11 cis-1,2-Dichloroethene ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 2-Butanone ND ppbv 1.0 03/13/24 15:11 03/13/24 15:11 Chloroform ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 1,1,1-Trichloroethane ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Carbon Tetrachloride ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Benzene ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 1,2-Dichloroethane ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Trichloroethene ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 1,2-Dichloropropane ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Bromodichloromethane ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 cis-1,3-Dichloropropene ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 4-Methyl-2-Pentanone ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Toluene ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 trans-1,3-Dichloropropene ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 1,1,2-Trichloroethane ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Tetrachloroethene ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 2-Hexanone ND ppbv 0.50 03/13/24 15:11 03/13/24 15:11 Dibromochloromethane ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 1,2-Dibromoethane ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Chlorobenzene ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Ethylbenzene ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 m,p-Xylenes ND ppbv 0.40 03/13/24 15:11 03/13/24 15:11 o-Xylene ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Styrene ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Bromoform ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 1,1,2,2-Tetrachloroethane ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 1,1,1,2-Tetrachloroethane ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 4-Ethyltoluene ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 11 of 13 Batch QC 50 of 52 1,3,5-Trimethylbenzene ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 1,2,4-Trimethylbenzene ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 1,3-Dichlorobenzene ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 1,4-Dichlorobenzene ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Benzyl chloride ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 1,2-Dichlorobenzene ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 1,2,4-Trichlorobenzene ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Hexachlorobutadiene ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Xylene (total)ND ppbv 0.20 03/13/24 15:11 03/13/24 15:11 Surrogates Limits Bromofluorobenzene 85%%REC 60-140 03/13/24 15:11 03/13/24 15:11 QC1136100 Analyte Result Qual Units RL Prepared Analyzed Type:Lab Control Sample Lab ID:QC1135300 Batch:335020 Matrix:Air Method:EPA TO-3M QC1135300 Analyte Result Spiked Units Recovery Qual Limits TPH Gasoline 2.667 2.500 ppmv 107%70-130 Type:Lab Control Sample Duplicate Lab ID:QC1135301 Batch:335020 Matrix:Air Method:EPA TO-3M QC1135301 Analyte Result Spiked Units Recovery Qual Limits RPD RPD Lim TPH Gasoline 2.414 2.500 ppmv 97%70-130 10 25 Type:Blank Lab ID:QC1135302 Batch:335020 Matrix:Air Method:EPA TO-3M QC1135302 Analyte Result Qual Units RL Prepared Analyzed TPH Gasoline ND ppmv 0.025 03/11/24 11:15 03/11/24 11:15 Type:Lab Control Sample Lab ID:QC1135643 Batch:335135 Matrix:Air Method:EPA TO-3M QC1135643 Analyte Result Spiked Units Recovery Qual Limits TPH Gasoline 2.296 2.500 ppmv 92%70-130 Type:Lab Control Sample Duplicate Lab ID:QC1135644 Batch:335135 Matrix:Air Method:EPA TO-3M QC1135644 Analyte Result Spiked Units Recovery Qual Limits RPD RPD Lim TPH Gasoline 2.268 2.500 ppmv 91%70-130 1 25 12 of 13 Batch QC 51 of 52 Type:Blank Lab ID:QC1135645 Batch:335135 Matrix:Air Method:EPA TO-3M QC1135645 Analyte Result Qual Units RL Prepared Analyzed TPH Gasoline ND ppmv 0.025 03/12/24 11:27 03/12/24 11:27 *Value is outside QC limits ND Not Detected b See narrative 13 of 13 Batch QC 52 of 52 Project Number 2162RV43 April 5, 2024 E2C Remediation Appendix D APPENDIX D EPA Method 8260B, EPA Method 8270C and Arsenic and Lead Laboratory Analytical Reports Enthalpy Analytical 931 West Barkley Ave Orange, CA 92868 (714) 771-6900 enthalpy.com Lab Job Number :504105 Report Level :II Report Date :03/24/2024 Analytical Report prepared for: Phil Goalwin E2C Remediation 233 Technology Way, #7 Rocklin, CA 95765 Location: PG+E MGP David Tripp, Project Manager 657-581-4710 david.tripp@enthalpy.com This data package has been reviewed for technical correctness and completeness. Release of this data has been authorized by the Laboratory Manager or the Manager's designee, as verified by the above signature which applies to this PDF file as well as any associated electronic data deliverable files. The results contained in this report meet all requirements of NELAP and pertain only to those samples which were submitted for analysis. This report may be reproduced only in its entirety. CA ELAP# 1338, NELAP# 4038, SCAQMD LAP# 18LA0518, LACSD ID# 10105 Authorized for release by: 1 of 54 Sample Summary Phil Goalwin E2C Remediation 233 Technology Way, #7 Rocklin, CA 95765 Lab Job #:504105 Location:PG+E MGP Date Received:03/09/24 Sample ID Lab ID Collected Matrix PS-4@2.5 504105-001 03/05/24 09:28 Soil PS-4@5 504105-002 03/05/24 09:32 Soil PS-3@2.5 504105-003 03/05/24 10:20 Soil PS-3@5 504105-004 03/05/24 10:25 Soil PS-2@2.5 504105-005 03/05/24 11:27 Soil PS-2@5 504105-006 03/05/24 11:30 Soil PS-1@2.5 504105-007 03/05/24 14:27 Soil PS-1@5 504105-008 03/05/24 14:30 Soil 2 of 54 Case Narrative E2C Remediation 233 Technology Way, #7 Rocklin, CA 95765 Phil Goalwin Lab Job Number: 504105 Location:PG+E MGP Date Received:03/09/24 This data package contains sample and QC results for eight soil samples, requested for the above referenced project on 03/09/24. The samples were received cold and intact. Volatile Organics by GC/MS (EPA 8260B): Low recoveries were observed for many analytes in the MS/MSD for batch 335661; the parent sample was not a project sample, and the BS/BSD were within limits. High RPD was observed for a number of analytes; the RPD was acceptable in the BS/BSD, and these analytes were not detected at or above the RL in the associated samples. Low surrogate recovery was observed for dibromofluoromethane in PS-2@2.5 (lab # 504105-005). No other analytical problems were encountered. Semivolatile Organics by GC/MS (EPA 8270C): Low surrogate recoveries were observed for 2-fluorophenol in PS-2@2.5 (lab # 504105-005) and PS-2@5 (lab # 504105-006). Low surrogate recoveries were observed for phenol-d6 in PS-2@2.5 (lab # 504105-005) and PS-2@5 (lab # 504105- 006). Low surrogate recoveries were observed for 2,4,6-tribromophenol in PS-2@2.5 (lab # 504105-005) and PS-2@5 (lab # 504105-006). No other analytical problems were encountered. Metals (EPA 6010B): No analytical problems were encountered. 1 of 1 3 of 54 4 of 54 5 of 54 Phil Goalwin E2C Remediation 233 Technology Way, #7 Rocklin, CA 95765 Lab Job #: 504105 Location: PG+E MGP Date Received: 03/09/24 Sample ID:PS-4@2.5 Lab ID:504105-001 Collected:03/05/24 09:28 Matrix:Soil 504105-001 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist Method: EPA 6010B Prep Method: EPA 3050B Arsenic 1.8 mg/Kg 0.95 0.95 335085 03/11/24 03/11/24 SBW Lead 1.2 mg/Kg 0.95 0.95 335085 03/11/24 03/11/24 SBW Method: EPA 8260B Prep Method: EPA 5030B 3-Chloropropene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Freon 12 ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Chloromethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Vinyl Chloride ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Bromomethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Chloroethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Trichlorofluoromethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Acetone ND ug/Kg 100 1 335569 03/18/24 03/18/24 LYZ Freon 113 ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,1-Dichloroethene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Methylene Chloride ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ MTBE ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ trans-1,2-Dichloroethene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,1-Dichloroethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 2-Butanone ND ug/Kg 100 1 335569 03/18/24 03/18/24 LYZ cis-1,2-Dichloroethene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 2,2-Dichloropropane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Chloroform ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Bromochloromethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,1,1-Trichloroethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,1-Dichloropropene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Carbon Tetrachloride ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,2-Dichloroethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Benzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Trichloroethene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,2-Dichloropropane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Bromodichloromethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Dibromomethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 4-Methyl-2-Pentanone ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ cis-1,3-Dichloropropene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Toluene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ trans-1,3-Dichloropropene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,1,2-Trichloroethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,3-Dichloropropane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Tetrachloroethene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Dibromochloromethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,2-Dibromoethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 6 of 54 Chlorobenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,1,1,2-Tetrachloroethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Ethylbenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ m,p-Xylenes ND ug/Kg 10 1 335569 03/18/24 03/18/24 LYZ o-Xylene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Styrene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Bromoform ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Isopropylbenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,1,2,2-Tetrachloroethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,2,3-Trichloropropane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Propylbenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Bromobenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,3,5-Trimethylbenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 2-Chlorotoluene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 4-Chlorotoluene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ tert-Butylbenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,2,4-Trimethylbenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ sec-Butylbenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ para-Isopropyl Toluene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,3-Dichlorobenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,4-Dichlorobenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ n-Butylbenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,2-Dichlorobenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,2-Dibromo-3-Chloropropane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,2,4-Trichlorobenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Hexachlorobutadiene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Naphthalene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,2,3-Trichlorobenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ cis-1,4-Dichloro-2-butene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ trans-1,4-Dichloro-2-butene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Xylene (total)ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Surrogates Limits Dibromofluoromethane 95%%REC 70-145 1 335569 03/18/24 03/18/24 LYZ 1,2-Dichloroethane-d4 108%%REC 70-145 1 335569 03/18/24 03/18/24 LYZ Toluene-d8 92%%REC 70-145 1 335569 03/18/24 03/18/24 LYZ Bromofluorobenzene 107%%REC 70-145 1 335569 03/18/24 03/18/24 LYZ Method: EPA 8270C Prep Method: EPA 3546 Carbazole ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 1-Methylnaphthalene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Pyridine ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL N-Nitrosodimethylamine ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Phenol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Aniline ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL bis(2-Chloroethyl)ether ND ug/Kg 1,200 0.99 335567 03/17/24 03/18/24 DJL 2-Chlorophenol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 1,3-Dichlorobenzene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 1,4-Dichlorobenzene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Benzyl alcohol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 1,2-Dichlorobenzene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 2-Methylphenol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL bis(2-Chloroisopropyl) ether ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 504105-001 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 2 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 7 of 54 3-,4-Methylphenol ND ug/Kg 400 0.99 335567 03/17/24 03/18/24 DJL N-Nitroso-di-n-propylamine ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Hexachloroethane ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Nitrobenzene ND ug/Kg 1,200 0.99 335567 03/17/24 03/18/24 DJL Isophorone ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 2-Nitrophenol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 2,4-Dimethylphenol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Benzoic acid ND ug/Kg 1,200 0.99 335567 03/17/24 03/18/24 DJL bis(2-Chloroethoxy)methane ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 2,4-Dichlorophenol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 1,2,4-Trichlorobenzene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Naphthalene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 4-Chloroaniline ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Hexachlorobutadiene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 4-Chloro-3-methylphenol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 2-Methylnaphthalene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Hexachlorocyclopentadiene ND ug/Kg 1,200 0.99 335567 03/17/24 03/18/24 DJL 2,4,6-Trichlorophenol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 2,4,5-Trichlorophenol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 2-Chloronaphthalene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 2-Nitroaniline ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Dimethylphthalate ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Acenaphthylene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 2,6-Dinitrotoluene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 3-Nitroaniline ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Acenaphthene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 2,4-Dinitrophenol ND ug/Kg 1,200 0.99 335567 03/17/24 03/18/24 DJL 4-Nitrophenol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Dibenzofuran ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 2,4-Dinitrotoluene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Diethylphthalate ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Fluorene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 4-Chlorophenyl-phenylether ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 4-Nitroaniline ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 4,6-Dinitro-2-methylphenol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL N-Nitrosodiphenylamine ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 1,2-diphenylhydrazine (as azobenzene)ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 4-Bromophenyl-phenylether ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Hexachlorobenzene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Pentachlorophenol ND ug/Kg 1,200 0.99 335567 03/17/24 03/18/24 DJL Phenanthrene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Anthracene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Di-n-butylphthalate ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Fluoranthene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Benzidine ND ug/Kg 1,200 0.99 335567 03/17/24 03/18/24 DJL Pyrene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Butylbenzylphthalate ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 3,3'-Dichlorobenzidine ND ug/Kg 1,200 0.99 335567 03/17/24 03/18/24 DJL Benzo(a)anthracene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Chrysene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL bis(2-Ethylhexyl)phthalate ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 504105-001 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 3 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 8 of 54 Di-n-octylphthalate ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Benzo(b)fluoranthene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Benzo(k)fluoranthene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Benzo(a)pyrene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Indeno(1,2,3-cd)pyrene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Dibenz(a,h)anthracene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Benzo(g,h,i)perylene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Surrogates Limits 2-Fluorophenol 64%%REC 29-120 0.99 335567 03/17/24 03/18/24 DJL Phenol-d6 72%%REC 30-120 0.99 335567 03/17/24 03/18/24 DJL 2,4,6-Tribromophenol 85%%REC 32-120 0.99 335567 03/17/24 03/18/24 DJL Nitrobenzene-d5 69%%REC 33-120 0.99 335567 03/17/24 03/18/24 DJL 2-Fluorobiphenyl 75%%REC 39-120 0.99 335567 03/17/24 03/18/24 DJL Terphenyl-d14 86%%REC 44-125 0.99 335567 03/17/24 03/18/24 DJL 504105-001 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 4 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 9 of 54 Sample ID:PS-4@5 Lab ID:504105-002 Collected:03/05/24 09:32 Matrix:Soil 504105-002 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist Method: EPA 6010B Prep Method: EPA 3050B Arsenic 2.7 mg/Kg 0.95 0.95 335085 03/11/24 03/11/24 SBW Lead 3.6 mg/Kg 0.95 0.95 335085 03/11/24 03/11/24 SBW Method: EPA 8260B Prep Method: EPA 5030B 3-Chloropropene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Freon 12 ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Chloromethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Vinyl Chloride ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Bromomethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Chloroethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Trichlorofluoromethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Acetone ND ug/Kg 100 1 335569 03/18/24 03/18/24 LYZ Freon 113 ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,1-Dichloroethene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Methylene Chloride ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ MTBE ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ trans-1,2-Dichloroethene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,1-Dichloroethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 2-Butanone ND ug/Kg 100 1 335569 03/18/24 03/18/24 LYZ cis-1,2-Dichloroethene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 2,2-Dichloropropane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Chloroform ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Bromochloromethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,1,1-Trichloroethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,1-Dichloropropene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Carbon Tetrachloride ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,2-Dichloroethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Benzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Trichloroethene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,2-Dichloropropane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Bromodichloromethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Dibromomethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 4-Methyl-2-Pentanone ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ cis-1,3-Dichloropropene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Toluene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ trans-1,3-Dichloropropene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,1,2-Trichloroethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,3-Dichloropropane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Tetrachloroethene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Dibromochloromethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,2-Dibromoethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Chlorobenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,1,1,2-Tetrachloroethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Ethylbenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ m,p-Xylenes ND ug/Kg 10 1 335569 03/18/24 03/18/24 LYZ 5 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 10 of 54 o-Xylene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Styrene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Bromoform ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Isopropylbenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,1,2,2-Tetrachloroethane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,2,3-Trichloropropane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Propylbenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Bromobenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,3,5-Trimethylbenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 2-Chlorotoluene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 4-Chlorotoluene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ tert-Butylbenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,2,4-Trimethylbenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ sec-Butylbenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ para-Isopropyl Toluene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,3-Dichlorobenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,4-Dichlorobenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ n-Butylbenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,2-Dichlorobenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,2-Dibromo-3-Chloropropane ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,2,4-Trichlorobenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Hexachlorobutadiene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Naphthalene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ 1,2,3-Trichlorobenzene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ cis-1,4-Dichloro-2-butene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ trans-1,4-Dichloro-2-butene ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Xylene (total)ND ug/Kg 5.0 1 335569 03/18/24 03/18/24 LYZ Surrogates Limits Dibromofluoromethane 100%%REC 70-145 1 335569 03/18/24 03/18/24 LYZ 1,2-Dichloroethane-d4 113%%REC 70-145 1 335569 03/18/24 03/18/24 LYZ Toluene-d8 94%%REC 70-145 1 335569 03/18/24 03/18/24 LYZ Bromofluorobenzene 107%%REC 70-145 1 335569 03/18/24 03/18/24 LYZ Method: EPA 8270C Prep Method: EPA 3546 Carbazole ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 1-Methylnaphthalene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Pyridine ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL N-Nitrosodimethylamine ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Phenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Aniline ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL bis(2-Chloroethyl)ether ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 DJL 2-Chlorophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 1,3-Dichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 1,4-Dichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Benzyl alcohol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 1,2-Dichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 2-Methylphenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL bis(2-Chloroisopropyl) ether ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 3-,4-Methylphenol ND ug/Kg 400 1 335567 03/17/24 03/18/24 DJL N-Nitroso-di-n-propylamine ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Hexachloroethane ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Nitrobenzene ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 DJL 504105-002 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 6 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 11 of 54 Isophorone ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 2-Nitrophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 2,4-Dimethylphenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Benzoic acid ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 DJL bis(2-Chloroethoxy)methane ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 2,4-Dichlorophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 1,2,4-Trichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Naphthalene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 4-Chloroaniline ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Hexachlorobutadiene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 4-Chloro-3-methylphenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 2-Methylnaphthalene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Hexachlorocyclopentadiene ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 DJL 2,4,6-Trichlorophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 2,4,5-Trichlorophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 2-Chloronaphthalene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 2-Nitroaniline ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Dimethylphthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Acenaphthylene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 2,6-Dinitrotoluene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 3-Nitroaniline ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Acenaphthene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 2,4-Dinitrophenol ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 DJL 4-Nitrophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Dibenzofuran ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 2,4-Dinitrotoluene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Diethylphthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Fluorene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 4-Chlorophenyl-phenylether ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 4-Nitroaniline ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 4,6-Dinitro-2-methylphenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL N-Nitrosodiphenylamine ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 1,2-diphenylhydrazine (as azobenzene)ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 4-Bromophenyl-phenylether ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Hexachlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Pentachlorophenol ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 DJL Phenanthrene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Anthracene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Di-n-butylphthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Fluoranthene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Benzidine ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 DJL Pyrene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Butylbenzylphthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 3,3'-Dichlorobenzidine ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 DJL Benzo(a)anthracene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Chrysene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL bis(2-Ethylhexyl)phthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Di-n-octylphthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Benzo(b)fluoranthene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Benzo(k)fluoranthene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Benzo(a)pyrene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 504105-002 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 7 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 12 of 54 Indeno(1,2,3-cd)pyrene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Dibenz(a,h)anthracene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Benzo(g,h,i)perylene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Surrogates Limits 2-Fluorophenol 52%%REC 29-120 1 335567 03/17/24 03/18/24 DJL Phenol-d6 56%%REC 30-120 1 335567 03/17/24 03/18/24 DJL 2,4,6-Tribromophenol 81%%REC 32-120 1 335567 03/17/24 03/18/24 DJL Nitrobenzene-d5 52%%REC 33-120 1 335567 03/17/24 03/18/24 DJL 2-Fluorobiphenyl 57%%REC 39-120 1 335567 03/17/24 03/18/24 DJL Terphenyl-d14 76%%REC 44-125 1 335567 03/17/24 03/18/24 DJL 504105-002 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 8 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 13 of 54 Sample ID:PS-3@2.5 Lab ID:504105-003 Collected:03/05/24 10:20 Matrix:Soil 504105-003 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist Method: EPA 6010B Prep Method: EPA 3050B Arsenic 2.2 mg/Kg 0.96 0.96 335085 03/11/24 03/11/24 SBW Lead 1.3 mg/Kg 0.96 0.96 335085 03/11/24 03/11/24 SBW Method: EPA 8260B Prep Method: EPA 5030B 3-Chloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Freon 12 ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Chloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Vinyl Chloride ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromomethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Chloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Trichlorofluoromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Acetone ND ug/Kg 100 1 335661 03/19/24 03/19/24 LYZ Freon 113 ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1-Dichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Methylene Chloride ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ MTBE ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ trans-1,2-Dichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1-Dichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 2-Butanone ND ug/Kg 100 1 335661 03/19/24 03/19/24 LYZ cis-1,2-Dichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 2,2-Dichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Chloroform ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromochloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1,1-Trichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1-Dichloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Carbon Tetrachloride ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Benzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Trichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromodichloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Dibromomethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 4-Methyl-2-Pentanone ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ cis-1,3-Dichloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Toluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ trans-1,3-Dichloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1,2-Trichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,3-Dichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Tetrachloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Dibromochloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dibromoethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Chlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1,1,2-Tetrachloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Ethylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ m,p-Xylenes ND ug/Kg 10 1 335661 03/19/24 03/19/24 LYZ 9 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 14 of 54 o-Xylene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Styrene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromoform ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Isopropylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1,2,2-Tetrachloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2,3-Trichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Propylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,3,5-Trimethylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 2-Chlorotoluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 4-Chlorotoluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ tert-Butylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2,4-Trimethylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ sec-Butylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ para-Isopropyl Toluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,3-Dichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,4-Dichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ n-Butylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dibromo-3-Chloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2,4-Trichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Hexachlorobutadiene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Naphthalene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2,3-Trichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ cis-1,4-Dichloro-2-butene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ trans-1,4-Dichloro-2-butene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Xylene (total)ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Surrogates Limits Dibromofluoromethane 103%%REC 70-145 1 335661 03/19/24 03/19/24 LYZ 1,2-Dichloroethane-d4 106%%REC 70-145 1 335661 03/19/24 03/19/24 LYZ Toluene-d8 93%%REC 70-145 1 335661 03/19/24 03/19/24 LYZ Bromofluorobenzene 107%%REC 70-145 1 335661 03/19/24 03/19/24 LYZ Method: EPA 8270C Prep Method: EPA 3546 Carbazole ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 1-Methylnaphthalene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Pyridine ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL N-Nitrosodimethylamine ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Phenol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Aniline ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL bis(2-Chloroethyl)ether ND ug/Kg 1,200 0.99 335567 03/17/24 03/18/24 DJL 2-Chlorophenol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 1,3-Dichlorobenzene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 1,4-Dichlorobenzene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Benzyl alcohol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 1,2-Dichlorobenzene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 2-Methylphenol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL bis(2-Chloroisopropyl) ether ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 3-,4-Methylphenol ND ug/Kg 400 0.99 335567 03/17/24 03/18/24 DJL N-Nitroso-di-n-propylamine ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Hexachloroethane ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Nitrobenzene ND ug/Kg 1,200 0.99 335567 03/17/24 03/18/24 DJL 504105-003 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 10 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 15 of 54 Isophorone ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 2-Nitrophenol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 2,4-Dimethylphenol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Benzoic acid ND ug/Kg 1,200 0.99 335567 03/17/24 03/18/24 DJL bis(2-Chloroethoxy)methane ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 2,4-Dichlorophenol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 1,2,4-Trichlorobenzene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Naphthalene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 4-Chloroaniline ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Hexachlorobutadiene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 4-Chloro-3-methylphenol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 2-Methylnaphthalene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Hexachlorocyclopentadiene ND ug/Kg 1,200 0.99 335567 03/17/24 03/18/24 DJL 2,4,6-Trichlorophenol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 2,4,5-Trichlorophenol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 2-Chloronaphthalene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 2-Nitroaniline ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Dimethylphthalate ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Acenaphthylene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 2,6-Dinitrotoluene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 3-Nitroaniline ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Acenaphthene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 2,4-Dinitrophenol ND ug/Kg 1,200 0.99 335567 03/17/24 03/18/24 DJL 4-Nitrophenol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Dibenzofuran ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 2,4-Dinitrotoluene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Diethylphthalate ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Fluorene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 4-Chlorophenyl-phenylether ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 4-Nitroaniline ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 4,6-Dinitro-2-methylphenol ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL N-Nitrosodiphenylamine ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 1,2-diphenylhydrazine (as azobenzene)ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 4-Bromophenyl-phenylether ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Hexachlorobenzene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Pentachlorophenol ND ug/Kg 1,200 0.99 335567 03/17/24 03/18/24 DJL Phenanthrene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Anthracene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Di-n-butylphthalate ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Fluoranthene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Benzidine ND ug/Kg 1,200 0.99 335567 03/17/24 03/18/24 DJL Pyrene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Butylbenzylphthalate ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 3,3'-Dichlorobenzidine ND ug/Kg 1,200 0.99 335567 03/17/24 03/18/24 DJL Benzo(a)anthracene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Chrysene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL bis(2-Ethylhexyl)phthalate ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Di-n-octylphthalate ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Benzo(b)fluoranthene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Benzo(k)fluoranthene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Benzo(a)pyrene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL 504105-003 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 11 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 16 of 54 Indeno(1,2,3-cd)pyrene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Dibenz(a,h)anthracene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Benzo(g,h,i)perylene ND ug/Kg 250 0.99 335567 03/17/24 03/18/24 DJL Surrogates Limits 2-Fluorophenol 47%%REC 29-120 0.99 335567 03/17/24 03/18/24 DJL Phenol-d6 52%%REC 30-120 0.99 335567 03/17/24 03/18/24 DJL 2,4,6-Tribromophenol 67%%REC 32-120 0.99 335567 03/17/24 03/18/24 DJL Nitrobenzene-d5 50%%REC 33-120 0.99 335567 03/17/24 03/18/24 DJL 2-Fluorobiphenyl 57%%REC 39-120 0.99 335567 03/17/24 03/18/24 DJL Terphenyl-d14 80%%REC 44-125 0.99 335567 03/17/24 03/18/24 DJL 504105-003 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 12 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 17 of 54 Sample ID:PS-3@5 Lab ID:504105-004 Collected:03/05/24 10:25 Matrix:Soil 504105-004 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist Method: EPA 6010B Prep Method: EPA 3050B Arsenic 1.5 mg/Kg 0.99 0.99 335085 03/11/24 03/11/24 SBW Lead ND mg/Kg 0.99 0.99 335085 03/11/24 03/11/24 SBW Method: EPA 8260B Prep Method: EPA 5030B 3-Chloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Freon 12 ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Chloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Vinyl Chloride ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromomethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Chloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Trichlorofluoromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Acetone ND ug/Kg 100 1 335661 03/19/24 03/19/24 LYZ Freon 113 ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1-Dichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Methylene Chloride ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ MTBE ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ trans-1,2-Dichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1-Dichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 2-Butanone ND ug/Kg 100 1 335661 03/19/24 03/19/24 LYZ cis-1,2-Dichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 2,2-Dichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Chloroform ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromochloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1,1-Trichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1-Dichloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Carbon Tetrachloride ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Benzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Trichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromodichloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Dibromomethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 4-Methyl-2-Pentanone ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ cis-1,3-Dichloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Toluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ trans-1,3-Dichloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1,2-Trichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,3-Dichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Tetrachloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Dibromochloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dibromoethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Chlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1,1,2-Tetrachloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Ethylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ m,p-Xylenes ND ug/Kg 10 1 335661 03/19/24 03/19/24 LYZ 13 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 18 of 54 o-Xylene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Styrene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromoform ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Isopropylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1,2,2-Tetrachloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2,3-Trichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Propylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,3,5-Trimethylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 2-Chlorotoluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 4-Chlorotoluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ tert-Butylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2,4-Trimethylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ sec-Butylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ para-Isopropyl Toluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,3-Dichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,4-Dichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ n-Butylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dibromo-3-Chloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2,4-Trichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Hexachlorobutadiene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Naphthalene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2,3-Trichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ cis-1,4-Dichloro-2-butene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ trans-1,4-Dichloro-2-butene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Xylene (total)ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Surrogates Limits Dibromofluoromethane 99%%REC 70-145 1 335661 03/19/24 03/19/24 LYZ 1,2-Dichloroethane-d4 103%%REC 70-145 1 335661 03/19/24 03/19/24 LYZ Toluene-d8 96%%REC 70-145 1 335661 03/19/24 03/19/24 LYZ Bromofluorobenzene 109%%REC 70-145 1 335661 03/19/24 03/19/24 LYZ Method: EPA 8270C Prep Method: EPA 3546 Carbazole ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 1-Methylnaphthalene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Pyridine ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL N-Nitrosodimethylamine ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Phenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Aniline ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL bis(2-Chloroethyl)ether ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 DJL 2-Chlorophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 1,3-Dichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 1,4-Dichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Benzyl alcohol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 1,2-Dichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 2-Methylphenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL bis(2-Chloroisopropyl) ether ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 3-,4-Methylphenol ND ug/Kg 400 1 335567 03/17/24 03/18/24 DJL N-Nitroso-di-n-propylamine ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Hexachloroethane ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Nitrobenzene ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 DJL 504105-004 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 14 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 19 of 54 Isophorone ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 2-Nitrophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 2,4-Dimethylphenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Benzoic acid ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 DJL bis(2-Chloroethoxy)methane ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 2,4-Dichlorophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 1,2,4-Trichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Naphthalene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 4-Chloroaniline ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Hexachlorobutadiene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 4-Chloro-3-methylphenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 2-Methylnaphthalene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Hexachlorocyclopentadiene ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 DJL 2,4,6-Trichlorophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 2,4,5-Trichlorophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 2-Chloronaphthalene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 2-Nitroaniline ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Dimethylphthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Acenaphthylene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 2,6-Dinitrotoluene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 3-Nitroaniline ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Acenaphthene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 2,4-Dinitrophenol ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 DJL 4-Nitrophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Dibenzofuran ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 2,4-Dinitrotoluene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Diethylphthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Fluorene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 4-Chlorophenyl-phenylether ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 4-Nitroaniline ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 4,6-Dinitro-2-methylphenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL N-Nitrosodiphenylamine ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 1,2-diphenylhydrazine (as azobenzene)ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 4-Bromophenyl-phenylether ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Hexachlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Pentachlorophenol ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 DJL Phenanthrene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Anthracene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Di-n-butylphthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Fluoranthene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Benzidine ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 DJL Pyrene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Butylbenzylphthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 3,3'-Dichlorobenzidine ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 DJL Benzo(a)anthracene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Chrysene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL bis(2-Ethylhexyl)phthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Di-n-octylphthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Benzo(b)fluoranthene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Benzo(k)fluoranthene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Benzo(a)pyrene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL 504105-004 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 15 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 20 of 54 Indeno(1,2,3-cd)pyrene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Dibenz(a,h)anthracene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Benzo(g,h,i)perylene ND ug/Kg 250 1 335567 03/17/24 03/18/24 DJL Surrogates Limits 2-Fluorophenol 62%%REC 29-120 1 335567 03/17/24 03/18/24 DJL Phenol-d6 71%%REC 30-120 1 335567 03/17/24 03/18/24 DJL 2,4,6-Tribromophenol 90%%REC 32-120 1 335567 03/17/24 03/18/24 DJL Nitrobenzene-d5 69%%REC 33-120 1 335567 03/17/24 03/18/24 DJL 2-Fluorobiphenyl 76%%REC 39-120 1 335567 03/17/24 03/18/24 DJL Terphenyl-d14 87%%REC 44-125 1 335567 03/17/24 03/18/24 DJL 504105-004 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 16 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 21 of 54 Sample ID:PS-2@2.5 Lab ID:504105-005 Collected:03/05/24 11:27 Matrix:Soil 504105-005 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist Method: EPA 6010B Prep Method: EPA 3050B Arsenic 2.3 mg/Kg 0.98 0.98 335085 03/11/24 03/11/24 SBW Lead 2.0 mg/Kg 0.98 0.98 335085 03/11/24 03/11/24 SBW Method: EPA 8260B Prep Method: EPA 5030B 3-Chloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Freon 12 ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Chloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Vinyl Chloride ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Bromomethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Chloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Trichlorofluoromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Acetone ND ug/Kg 100 1 335661 03/19/24 03/19/24 TCN Freon 113 ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 1,1-Dichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Methylene Chloride ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN MTBE ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN trans-1,2-Dichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 1,1-Dichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 2-Butanone ND ug/Kg 100 1 335661 03/19/24 03/19/24 TCN cis-1,2-Dichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 2,2-Dichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Chloroform ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Bromochloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 1,1,1-Trichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 1,1-Dichloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Carbon Tetrachloride ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 1,2-Dichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Benzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Trichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 1,2-Dichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Bromodichloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Dibromomethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 4-Methyl-2-Pentanone ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN cis-1,3-Dichloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Toluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN trans-1,3-Dichloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 1,1,2-Trichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 1,3-Dichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Tetrachloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Dibromochloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 1,2-Dibromoethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Chlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 1,1,1,2-Tetrachloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Ethylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN m,p-Xylenes ND ug/Kg 10 1 335661 03/19/24 03/19/24 TCN 17 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 22 of 54 o-Xylene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Styrene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Bromoform ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Isopropylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 1,1,2,2-Tetrachloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 1,2,3-Trichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Propylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Bromobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 1,3,5-Trimethylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 2-Chlorotoluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 4-Chlorotoluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN tert-Butylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 1,2,4-Trimethylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN sec-Butylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN para-Isopropyl Toluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 1,3-Dichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 1,4-Dichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN n-Butylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 1,2-Dichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 1,2-Dibromo-3-Chloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 1,2,4-Trichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Hexachlorobutadiene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Naphthalene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN 1,2,3-Trichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN cis-1,4-Dichloro-2-butene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN trans-1,4-Dichloro-2-butene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Xylene (total)ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 TCN Surrogates Limits Dibromofluoromethane 64%*%REC 70-145 1 335661 03/19/24 03/19/24 TCN 1,2-Dichloroethane-d4 109%%REC 70-145 1 335661 03/19/24 03/19/24 TCN Toluene-d8 96%%REC 70-145 1 335661 03/19/24 03/19/24 TCN Bromofluorobenzene 110%%REC 70-145 1 335661 03/19/24 03/19/24 TCN Method: EPA 8270C Prep Method: EPA 3546 Carbazole ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 1-Methylnaphthalene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Pyridine ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL N-Nitrosodimethylamine ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Phenol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Aniline ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL bis(2-Chloroethyl)ether ND ug/Kg 1,200 1 335567 03/17/24 03/22/24 DJL 2-Chlorophenol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 1,3-Dichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 1,4-Dichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Benzyl alcohol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 1,2-Dichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 2-Methylphenol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL bis(2-Chloroisopropyl) ether ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 3-,4-Methylphenol ND ug/Kg 400 1 335567 03/17/24 03/22/24 DJL N-Nitroso-di-n-propylamine ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Hexachloroethane ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Nitrobenzene ND ug/Kg 1,200 1 335567 03/17/24 03/22/24 DJL 504105-005 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 18 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 23 of 54 Isophorone ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 2-Nitrophenol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 2,4-Dimethylphenol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Benzoic acid ND ug/Kg 1,200 1 335567 03/17/24 03/22/24 DJL bis(2-Chloroethoxy)methane ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 2,4-Dichlorophenol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 1,2,4-Trichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Naphthalene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 4-Chloroaniline ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Hexachlorobutadiene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 4-Chloro-3-methylphenol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 2-Methylnaphthalene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Hexachlorocyclopentadiene ND ug/Kg 1,200 1 335567 03/17/24 03/22/24 DJL 2,4,6-Trichlorophenol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 2,4,5-Trichlorophenol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 2-Chloronaphthalene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 2-Nitroaniline ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Dimethylphthalate ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Acenaphthylene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 2,6-Dinitrotoluene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 3-Nitroaniline ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Acenaphthene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 2,4-Dinitrophenol ND ug/Kg 1,200 1 335567 03/17/24 03/22/24 DJL 4-Nitrophenol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Dibenzofuran ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 2,4-Dinitrotoluene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Diethylphthalate ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Fluorene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 4-Chlorophenyl-phenylether ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 4-Nitroaniline ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 4,6-Dinitro-2-methylphenol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL N-Nitrosodiphenylamine ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 1,2-diphenylhydrazine (as azobenzene)ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 4-Bromophenyl-phenylether ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Hexachlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Pentachlorophenol ND ug/Kg 1,200 1 335567 03/17/24 03/22/24 DJL Phenanthrene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Anthracene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Di-n-butylphthalate ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Fluoranthene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Benzidine ND ug/Kg 1,200 1 335567 03/17/24 03/22/24 DJL Pyrene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Butylbenzylphthalate ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 3,3'-Dichlorobenzidine ND ug/Kg 1,200 1 335567 03/17/24 03/22/24 DJL Benzo(a)anthracene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Chrysene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL bis(2-Ethylhexyl)phthalate ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Di-n-octylphthalate ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Benzo(b)fluoranthene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Benzo(k)fluoranthene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Benzo(a)pyrene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 504105-005 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 19 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 24 of 54 Indeno(1,2,3-cd)pyrene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Dibenz(a,h)anthracene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Benzo(g,h,i)perylene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Surrogates Limits 2-Fluorophenol 2%*%REC 29-120 1 335567 03/17/24 03/22/24 DJL Phenol-d6 17%*%REC 30-120 1 335567 03/17/24 03/22/24 DJL 2,4,6-Tribromophenol 2%*%REC 32-120 1 335567 03/17/24 03/22/24 DJL Nitrobenzene-d5 50%%REC 33-120 1 335567 03/17/24 03/22/24 DJL 2-Fluorobiphenyl 48%%REC 39-120 1 335567 03/17/24 03/22/24 DJL Terphenyl-d14 84%%REC 44-125 1 335567 03/17/24 03/22/24 DJL 504105-005 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 20 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 25 of 54 Sample ID:PS-2@5 Lab ID:504105-006 Collected:03/05/24 11:30 Matrix:Soil 504105-006 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist Method: EPA 6010B Prep Method: EPA 3050B Arsenic 2.6 mg/Kg 0.96 0.96 335085 03/11/24 03/11/24 SBW Lead 2.1 mg/Kg 0.96 0.96 335085 03/11/24 03/11/24 SBW Method: EPA 8260B Prep Method: EPA 5030B 3-Chloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Freon 12 ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Chloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Vinyl Chloride ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromomethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Chloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Trichlorofluoromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Acetone ND ug/Kg 100 1 335661 03/19/24 03/19/24 LYZ Freon 113 ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1-Dichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Methylene Chloride ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ MTBE ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ trans-1,2-Dichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1-Dichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 2-Butanone ND ug/Kg 100 1 335661 03/19/24 03/19/24 LYZ cis-1,2-Dichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 2,2-Dichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Chloroform ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromochloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1,1-Trichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1-Dichloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Carbon Tetrachloride ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Benzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Trichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromodichloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Dibromomethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 4-Methyl-2-Pentanone ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ cis-1,3-Dichloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Toluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ trans-1,3-Dichloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1,2-Trichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,3-Dichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Tetrachloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Dibromochloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dibromoethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Chlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1,1,2-Tetrachloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Ethylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ m,p-Xylenes ND ug/Kg 10 1 335661 03/19/24 03/19/24 LYZ 21 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 26 of 54 o-Xylene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Styrene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromoform ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Isopropylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1,2,2-Tetrachloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2,3-Trichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Propylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,3,5-Trimethylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 2-Chlorotoluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 4-Chlorotoluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ tert-Butylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2,4-Trimethylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ sec-Butylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ para-Isopropyl Toluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,3-Dichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,4-Dichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ n-Butylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dibromo-3-Chloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2,4-Trichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Hexachlorobutadiene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Naphthalene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2,3-Trichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ cis-1,4-Dichloro-2-butene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ trans-1,4-Dichloro-2-butene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Xylene (total)ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Surrogates Limits Dibromofluoromethane 75%%REC 70-145 1 335661 03/19/24 03/19/24 LYZ 1,2-Dichloroethane-d4 109%%REC 70-145 1 335661 03/19/24 03/19/24 LYZ Toluene-d8 94%%REC 70-145 1 335661 03/19/24 03/19/24 LYZ Bromofluorobenzene 108%%REC 70-145 1 335661 03/19/24 03/19/24 LYZ Method: EPA 8270C Prep Method: EPA 3546 Carbazole ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 1-Methylnaphthalene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Pyridine ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL N-Nitrosodimethylamine ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Phenol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Aniline ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL bis(2-Chloroethyl)ether ND ug/Kg 1,200 1 335567 03/17/24 03/22/24 DJL 2-Chlorophenol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 1,3-Dichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 1,4-Dichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Benzyl alcohol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 1,2-Dichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 2-Methylphenol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL bis(2-Chloroisopropyl) ether ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 3-,4-Methylphenol ND ug/Kg 400 1 335567 03/17/24 03/22/24 DJL N-Nitroso-di-n-propylamine ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Hexachloroethane ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Nitrobenzene ND ug/Kg 1,200 1 335567 03/17/24 03/22/24 DJL 504105-006 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 22 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 27 of 54 Isophorone ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 2-Nitrophenol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 2,4-Dimethylphenol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Benzoic acid ND ug/Kg 1,200 1 335567 03/17/24 03/22/24 DJL bis(2-Chloroethoxy)methane ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 2,4-Dichlorophenol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 1,2,4-Trichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Naphthalene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 4-Chloroaniline ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Hexachlorobutadiene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 4-Chloro-3-methylphenol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 2-Methylnaphthalene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Hexachlorocyclopentadiene ND ug/Kg 1,200 1 335567 03/17/24 03/22/24 DJL 2,4,6-Trichlorophenol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 2,4,5-Trichlorophenol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 2-Chloronaphthalene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 2-Nitroaniline ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Dimethylphthalate ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Acenaphthylene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 2,6-Dinitrotoluene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 3-Nitroaniline ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Acenaphthene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 2,4-Dinitrophenol ND ug/Kg 1,200 1 335567 03/17/24 03/22/24 DJL 4-Nitrophenol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Dibenzofuran ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 2,4-Dinitrotoluene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Diethylphthalate ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Fluorene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 4-Chlorophenyl-phenylether ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 4-Nitroaniline ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 4,6-Dinitro-2-methylphenol ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL N-Nitrosodiphenylamine ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 1,2-diphenylhydrazine (as azobenzene)ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 4-Bromophenyl-phenylether ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Hexachlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Pentachlorophenol ND ug/Kg 1,200 1 335567 03/17/24 03/22/24 DJL Phenanthrene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Anthracene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Di-n-butylphthalate ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Fluoranthene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Benzidine ND ug/Kg 1,200 1 335567 03/17/24 03/22/24 DJL Pyrene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Butylbenzylphthalate ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 3,3'-Dichlorobenzidine ND ug/Kg 1,200 1 335567 03/17/24 03/22/24 DJL Benzo(a)anthracene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Chrysene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL bis(2-Ethylhexyl)phthalate ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Di-n-octylphthalate ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Benzo(b)fluoranthene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Benzo(k)fluoranthene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Benzo(a)pyrene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL 504105-006 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 23 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 28 of 54 Indeno(1,2,3-cd)pyrene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Dibenz(a,h)anthracene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Benzo(g,h,i)perylene ND ug/Kg 250 1 335567 03/17/24 03/22/24 DJL Surrogates Limits 2-Fluorophenol 3%*%REC 29-120 1 335567 03/17/24 03/22/24 DJL Phenol-d6 23%*%REC 30-120 1 335567 03/17/24 03/22/24 DJL 2,4,6-Tribromophenol 3%*%REC 32-120 1 335567 03/17/24 03/22/24 DJL Nitrobenzene-d5 56%%REC 33-120 1 335567 03/17/24 03/22/24 DJL 2-Fluorobiphenyl 54%%REC 39-120 1 335567 03/17/24 03/22/24 DJL Terphenyl-d14 92%%REC 44-125 1 335567 03/17/24 03/22/24 DJL 504105-006 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 24 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 29 of 54 Sample ID:PS-1@2.5 Lab ID:504105-007 Collected:03/05/24 14:27 Matrix:Soil 504105-007 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist Method: EPA 6010B Prep Method: EPA 3050B Arsenic 1.6 mg/Kg 0.98 0.98 335085 03/11/24 03/11/24 SBW Lead 2.0 mg/Kg 0.98 0.98 335085 03/11/24 03/11/24 SBW Method: EPA 8260B Prep Method: EPA 5030B 3-Chloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Freon 12 ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Chloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Vinyl Chloride ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromomethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Chloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Trichlorofluoromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Acetone ND ug/Kg 100 1 335661 03/19/24 03/19/24 LYZ Freon 113 ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1-Dichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Methylene Chloride ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ MTBE ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ trans-1,2-Dichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1-Dichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 2-Butanone ND ug/Kg 100 1 335661 03/19/24 03/19/24 LYZ cis-1,2-Dichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 2,2-Dichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Chloroform ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromochloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1,1-Trichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1-Dichloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Carbon Tetrachloride ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Benzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Trichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromodichloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Dibromomethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 4-Methyl-2-Pentanone ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ cis-1,3-Dichloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Toluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ trans-1,3-Dichloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1,2-Trichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,3-Dichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Tetrachloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Dibromochloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dibromoethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Chlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1,1,2-Tetrachloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Ethylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ m,p-Xylenes ND ug/Kg 10 1 335661 03/19/24 03/19/24 LYZ 25 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 30 of 54 o-Xylene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Styrene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromoform ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Isopropylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1,2,2-Tetrachloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2,3-Trichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Propylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,3,5-Trimethylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 2-Chlorotoluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 4-Chlorotoluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ tert-Butylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2,4-Trimethylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ sec-Butylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ para-Isopropyl Toluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,3-Dichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,4-Dichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ n-Butylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dibromo-3-Chloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2,4-Trichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Hexachlorobutadiene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Naphthalene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2,3-Trichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ cis-1,4-Dichloro-2-butene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ trans-1,4-Dichloro-2-butene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Xylene (total)ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Surrogates Limits Dibromofluoromethane 103%%REC 70-145 1 335661 03/19/24 03/19/24 LYZ 1,2-Dichloroethane-d4 102%%REC 70-145 1 335661 03/19/24 03/19/24 LYZ Toluene-d8 95%%REC 70-145 1 335661 03/19/24 03/19/24 LYZ Bromofluorobenzene 109%%REC 70-145 1 335661 03/19/24 03/19/24 LYZ Method: EPA 8270C Prep Method: EPA 3546 Carbazole ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 1-Methylnaphthalene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Pyridine ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN N-Nitrosodimethylamine ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Phenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Aniline ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN bis(2-Chloroethyl)ether ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 HQN 2-Chlorophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 1,3-Dichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 1,4-Dichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Benzyl alcohol ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 1,2-Dichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 2-Methylphenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN bis(2-Chloroisopropyl) ether ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 3-,4-Methylphenol ND ug/Kg 400 1 335567 03/17/24 03/18/24 HQN N-Nitroso-di-n-propylamine ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Hexachloroethane ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Nitrobenzene ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 HQN 504105-007 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 26 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 31 of 54 Isophorone ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 2-Nitrophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 2,4-Dimethylphenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Benzoic acid ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 HQN bis(2-Chloroethoxy)methane ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 2,4-Dichlorophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 1,2,4-Trichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Naphthalene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 4-Chloroaniline ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Hexachlorobutadiene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 4-Chloro-3-methylphenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 2-Methylnaphthalene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Hexachlorocyclopentadiene ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 HQN 2,4,6-Trichlorophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 2,4,5-Trichlorophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 2-Chloronaphthalene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 2-Nitroaniline ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Dimethylphthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Acenaphthylene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 2,6-Dinitrotoluene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 3-Nitroaniline ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Acenaphthene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 2,4-Dinitrophenol ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 HQN 4-Nitrophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Dibenzofuran ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 2,4-Dinitrotoluene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Diethylphthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Fluorene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 4-Chlorophenyl-phenylether ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 4-Nitroaniline ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 4,6-Dinitro-2-methylphenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN N-Nitrosodiphenylamine ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 1,2-diphenylhydrazine (as azobenzene)ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 4-Bromophenyl-phenylether ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Hexachlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Pentachlorophenol ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 HQN Phenanthrene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Anthracene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Di-n-butylphthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Fluoranthene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Benzidine ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 HQN Pyrene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Butylbenzylphthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 3,3'-Dichlorobenzidine ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 HQN Benzo(a)anthracene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Chrysene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN bis(2-Ethylhexyl)phthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Di-n-octylphthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Benzo(b)fluoranthene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Benzo(k)fluoranthene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Benzo(a)pyrene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 504105-007 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 27 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 32 of 54 Indeno(1,2,3-cd)pyrene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Dibenz(a,h)anthracene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Benzo(g,h,i)perylene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Surrogates Limits 2-Fluorophenol 55%%REC 29-120 1 335567 03/17/24 03/18/24 HQN Phenol-d6 60%%REC 30-120 1 335567 03/17/24 03/18/24 HQN 2,4,6-Tribromophenol 71%%REC 32-120 1 335567 03/17/24 03/18/24 HQN Nitrobenzene-d5 56%%REC 33-120 1 335567 03/17/24 03/18/24 HQN 2-Fluorobiphenyl 64%%REC 39-120 1 335567 03/17/24 03/18/24 HQN Terphenyl-d14 89%%REC 44-125 1 335567 03/17/24 03/18/24 HQN 504105-007 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 28 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 33 of 54 Sample ID:PS-1@5 Lab ID:504105-008 Collected:03/05/24 14:30 Matrix:Soil 504105-008 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist Method: EPA 6010B Prep Method: EPA 3050B Arsenic 2.8 mg/Kg 0.95 0.95 335085 03/11/24 03/11/24 SBW Lead 2.8 mg/Kg 0.95 0.95 335085 03/11/24 03/11/24 SBW Method: EPA 8260B Prep Method: EPA 5030B 3-Chloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Freon 12 ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Chloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Vinyl Chloride ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromomethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Chloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Trichlorofluoromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Acetone ND ug/Kg 100 1 335661 03/19/24 03/19/24 LYZ Freon 113 ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1-Dichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Methylene Chloride ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ MTBE ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ trans-1,2-Dichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1-Dichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 2-Butanone ND ug/Kg 100 1 335661 03/19/24 03/19/24 LYZ cis-1,2-Dichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 2,2-Dichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Chloroform ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromochloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1,1-Trichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1-Dichloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Carbon Tetrachloride ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Benzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Trichloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromodichloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Dibromomethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 4-Methyl-2-Pentanone ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ cis-1,3-Dichloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Toluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ trans-1,3-Dichloropropene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1,2-Trichloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,3-Dichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Tetrachloroethene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Dibromochloromethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dibromoethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Chlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1,1,2-Tetrachloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Ethylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ m,p-Xylenes ND ug/Kg 10 1 335661 03/19/24 03/19/24 LYZ 29 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 34 of 54 o-Xylene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Styrene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromoform ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Isopropylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,1,2,2-Tetrachloroethane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2,3-Trichloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Propylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Bromobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,3,5-Trimethylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 2-Chlorotoluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 4-Chlorotoluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ tert-Butylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2,4-Trimethylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ sec-Butylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ para-Isopropyl Toluene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,3-Dichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,4-Dichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ n-Butylbenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2-Dibromo-3-Chloropropane ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2,4-Trichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Hexachlorobutadiene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Naphthalene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ 1,2,3-Trichlorobenzene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ cis-1,4-Dichloro-2-butene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ trans-1,4-Dichloro-2-butene ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Xylene (total)ND ug/Kg 5.0 1 335661 03/19/24 03/19/24 LYZ Surrogates Limits Dibromofluoromethane 105%%REC 70-145 1 335661 03/19/24 03/19/24 LYZ 1,2-Dichloroethane-d4 110%%REC 70-145 1 335661 03/19/24 03/19/24 LYZ Toluene-d8 93%%REC 70-145 1 335661 03/19/24 03/19/24 LYZ Bromofluorobenzene 107%%REC 70-145 1 335661 03/19/24 03/19/24 LYZ Method: EPA 8270C Prep Method: EPA 3546 Carbazole ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 1-Methylnaphthalene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Pyridine ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN N-Nitrosodimethylamine ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Phenol 260 ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Aniline ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN bis(2-Chloroethyl)ether ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 HQN 2-Chlorophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 1,3-Dichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 1,4-Dichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Benzyl alcohol ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 1,2-Dichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 2-Methylphenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN bis(2-Chloroisopropyl) ether ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 3-,4-Methylphenol ND ug/Kg 400 1 335567 03/17/24 03/18/24 HQN N-Nitroso-di-n-propylamine ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Hexachloroethane ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Nitrobenzene ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 HQN 504105-008 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 30 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 35 of 54 Isophorone ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 2-Nitrophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 2,4-Dimethylphenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Benzoic acid ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 HQN bis(2-Chloroethoxy)methane ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 2,4-Dichlorophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 1,2,4-Trichlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Naphthalene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 4-Chloroaniline ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Hexachlorobutadiene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 4-Chloro-3-methylphenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 2-Methylnaphthalene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Hexachlorocyclopentadiene ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 HQN 2,4,6-Trichlorophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 2,4,5-Trichlorophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 2-Chloronaphthalene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 2-Nitroaniline ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Dimethylphthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Acenaphthylene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 2,6-Dinitrotoluene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 3-Nitroaniline ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Acenaphthene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 2,4-Dinitrophenol ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 HQN 4-Nitrophenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Dibenzofuran ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 2,4-Dinitrotoluene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Diethylphthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Fluorene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 4-Chlorophenyl-phenylether ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 4-Nitroaniline ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 4,6-Dinitro-2-methylphenol ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN N-Nitrosodiphenylamine ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 1,2-diphenylhydrazine (as azobenzene)ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 4-Bromophenyl-phenylether ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Hexachlorobenzene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Pentachlorophenol ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 HQN Phenanthrene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Anthracene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Di-n-butylphthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Fluoranthene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Benzidine ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 HQN Pyrene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Butylbenzylphthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 3,3'-Dichlorobenzidine ND ug/Kg 1,200 1 335567 03/17/24 03/18/24 HQN Benzo(a)anthracene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Chrysene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN bis(2-Ethylhexyl)phthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Di-n-octylphthalate ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Benzo(b)fluoranthene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Benzo(k)fluoranthene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Benzo(a)pyrene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN 504105-008 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist 31 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 36 of 54 Indeno(1,2,3-cd)pyrene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Dibenz(a,h)anthracene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Benzo(g,h,i)perylene ND ug/Kg 250 1 335567 03/17/24 03/18/24 HQN Surrogates Limits 2-Fluorophenol 55%%REC 29-120 1 335567 03/17/24 03/18/24 HQN Phenol-d6 57%%REC 30-120 1 335567 03/17/24 03/18/24 HQN 2,4,6-Tribromophenol 70%%REC 32-120 1 335567 03/17/24 03/18/24 HQN Nitrobenzene-d5 55%%REC 33-120 1 335567 03/17/24 03/18/24 HQN 2-Fluorobiphenyl 65%%REC 39-120 1 335567 03/17/24 03/18/24 HQN Terphenyl-d14 83%%REC 44-125 1 335567 03/17/24 03/18/24 HQN 504105-008 Analyte Result Qual Units RL DF Batch Prepared Analyzed Chemist *Value is outside QC limits ND Not Detected 32 of 32 Analysis Results for 504105 Results for any subcontracted analyses are not included in this section. 37 of 54 Type:Blank Lab ID:QC1135504 Batch:335085 Matrix:Soil Method:EPA 6010B Prep Method:EPA 3050B QC1135504 Analyte Result Qual Units RL Prepared Analyzed Arsenic ND mg/Kg 1.0 03/11/24 03/11/24 Lead ND mg/Kg 1.0 03/11/24 03/11/24 Type:Lab Control Sample Lab ID:QC1135505 Batch:335085 Matrix:Soil Method:EPA 6010B Prep Method:EPA 3050B QC1135505 Analyte Result Spiked Units Recovery Qual Limits Arsenic 101.9 100.0 mg/Kg 102%80-120 Lead 106.4 100.0 mg/Kg 106%80-120 Type:Matrix Spike Lab ID:QC1135506 Batch:335085 Matrix (Source ID):Soil (504122-001)Method:EPA 6010B Prep Method:EPA 3050B QC1135506 Analyte Result Source Sample Result Spiked Units Recovery Qual Limits DF Arsenic 141.8 45.18 95.24 mg/Kg 101%75-125 0.95 Lead 124.0 25.77 95.24 mg/Kg 103%75-125 0.95 Type:Matrix Spike Duplicate Lab ID:QC1135507 Batch:335085 Matrix (Source ID):Soil (504122-001)Method:EPA 6010B Prep Method:EPA 3050B QC1135507 Analyte Result Source Sample Result Spiked Units Recovery Qual Limits RPD RPD Lim DF Arsenic 147.6 45.18 99.01 mg/Kg 103%75-125 1 35 0.99 Lead 132.1 25.77 99.01 mg/Kg 107%75-125 3 20 0.99 Type:Post Digest Spike Lab ID:QC1135508 Batch:335085 Matrix (Source ID):Soil (504122-001)Method:EPA 6010B Prep Method:EPA 3050B QC1135508 Analyte Result Source Sample Result Spiked Units Recovery Qual Limits DF Arsenic 146.0 45.18 97.09 mg/Kg 104%75-125 0.97 Lead 127.0 25.77 97.09 mg/Kg 104%75-125 0.97 1 of 17 Batch QC 38 of 54 Type:Lab Control Sample Lab ID:QC1137060 Batch:335569 Matrix:Soil Method:EPA 8260B Prep Method:EPA 5030B QC1137060 Analyte Result Spiked Units Recovery Qual Limits 1,1-Dichloroethene 49.90 50.00 ug/Kg 100%70-131 MTBE 41.18 50.00 ug/Kg 82%69-130 Benzene 49.10 50.00 ug/Kg 98%70-130 Trichloroethene 50.76 50.00 ug/Kg 102%70-130 Toluene 46.82 50.00 ug/Kg 94%70-130 Chlorobenzene 49.70 50.00 ug/Kg 99%70-130 Surrogates Dibromofluoromethane 55.40 50.00 ug/Kg 111%70-130 1,2-Dichloroethane-d4 55.25 50.00 ug/Kg 111%70-145 Toluene-d8 48.22 50.00 ug/Kg 96%70-145 Bromofluorobenzene 54.87 50.00 ug/Kg 110%70-145 Type:Lab Control Sample Duplicate Lab ID:QC1137061 Batch:335569 Matrix:Soil Method:EPA 8260B Prep Method:EPA 5030B QC1137061 Analyte Result Spiked Units Recovery Qual Limits RPD RPD Lim 1,1-Dichloroethene 46.95 50.00 ug/Kg 94%70-131 6 33 MTBE 40.81 50.00 ug/Kg 82%69-130 1 30 Benzene 47.14 50.00 ug/Kg 94%70-130 4 30 Trichloroethene 49.86 50.00 ug/Kg 100%70-130 2 30 Toluene 44.74 50.00 ug/Kg 89%70-130 5 30 Chlorobenzene 47.80 50.00 ug/Kg 96%70-130 4 30 Surrogates Dibromofluoromethane 55.66 50.00 ug/Kg 111%70-130 1,2-Dichloroethane-d4 55.24 50.00 ug/Kg 110%70-145 Toluene-d8 48.22 50.00 ug/Kg 96%70-145 Bromofluorobenzene 53.60 50.00 ug/Kg 107%70-145 2 of 17 Batch QC 39 of 54 Type:Blank Lab ID:QC1137064 Batch:335569 Matrix:Soil Method:EPA 8260B Prep Method:EPA 5030B QC1137064 Analyte Result Qual Units RL Prepared Analyzed 3-Chloropropene ND ug/Kg 5.0 03/18/24 03/18/24 Freon 12 ND ug/Kg 5.0 03/18/24 03/18/24 Chloromethane ND ug/Kg 5.0 03/18/24 03/18/24 Vinyl Chloride ND ug/Kg 5.0 03/18/24 03/18/24 Bromomethane ND ug/Kg 5.0 03/18/24 03/18/24 Chloroethane ND ug/Kg 5.0 03/18/24 03/18/24 Trichlorofluoromethane ND ug/Kg 5.0 03/18/24 03/18/24 Acetone ND ug/Kg 100 03/18/24 03/18/24 Freon 113 ND ug/Kg 5.0 03/18/24 03/18/24 1,1-Dichloroethene ND ug/Kg 5.0 03/18/24 03/18/24 Methylene Chloride ND ug/Kg 5.0 03/18/24 03/18/24 MTBE ND ug/Kg 5.0 03/18/24 03/18/24 trans-1,2-Dichloroethene ND ug/Kg 5.0 03/18/24 03/18/24 1,1-Dichloroethane ND ug/Kg 5.0 03/18/24 03/18/24 2-Butanone ND ug/Kg 100 03/18/24 03/18/24 cis-1,2-Dichloroethene ND ug/Kg 5.0 03/18/24 03/18/24 2,2-Dichloropropane ND ug/Kg 5.0 03/18/24 03/18/24 Chloroform ND ug/Kg 5.0 03/18/24 03/18/24 Bromochloromethane ND ug/Kg 5.0 03/18/24 03/18/24 1,1,1-Trichloroethane ND ug/Kg 5.0 03/18/24 03/18/24 1,1-Dichloropropene ND ug/Kg 5.0 03/18/24 03/18/24 Carbon Tetrachloride ND ug/Kg 5.0 03/18/24 03/18/24 1,2-Dichloroethane ND ug/Kg 5.0 03/18/24 03/18/24 Benzene ND ug/Kg 5.0 03/18/24 03/18/24 Trichloroethene ND ug/Kg 5.0 03/18/24 03/18/24 1,2-Dichloropropane ND ug/Kg 5.0 03/18/24 03/18/24 Bromodichloromethane ND ug/Kg 5.0 03/18/24 03/18/24 Dibromomethane ND ug/Kg 5.0 03/18/24 03/18/24 4-Methyl-2-Pentanone ND ug/Kg 5.0 03/18/24 03/18/24 cis-1,3-Dichloropropene ND ug/Kg 5.0 03/18/24 03/18/24 Toluene ND ug/Kg 5.0 03/18/24 03/18/24 trans-1,3-Dichloropropene ND ug/Kg 5.0 03/18/24 03/18/24 1,1,2-Trichloroethane ND ug/Kg 5.0 03/18/24 03/18/24 1,3-Dichloropropane ND ug/Kg 5.0 03/18/24 03/18/24 Tetrachloroethene ND ug/Kg 5.0 03/18/24 03/18/24 Dibromochloromethane ND ug/Kg 5.0 03/18/24 03/18/24 1,2-Dibromoethane ND ug/Kg 5.0 03/18/24 03/18/24 Chlorobenzene ND ug/Kg 5.0 03/18/24 03/18/24 1,1,1,2-Tetrachloroethane ND ug/Kg 5.0 03/18/24 03/18/24 Ethylbenzene ND ug/Kg 5.0 03/18/24 03/18/24 m,p-Xylenes ND ug/Kg 10 03/18/24 03/18/24 o-Xylene ND ug/Kg 5.0 03/18/24 03/18/24 Styrene ND ug/Kg 5.0 03/18/24 03/18/24 Bromoform ND ug/Kg 5.0 03/18/24 03/18/24 Isopropylbenzene ND ug/Kg 5.0 03/18/24 03/18/24 1,1,2,2-Tetrachloroethane ND ug/Kg 5.0 03/18/24 03/18/24 1,2,3-Trichloropropane ND ug/Kg 5.0 03/18/24 03/18/24 3 of 17 Batch QC 40 of 54 Propylbenzene ND ug/Kg 5.0 03/18/24 03/18/24 Bromobenzene ND ug/Kg 5.0 03/18/24 03/18/24 1,3,5-Trimethylbenzene ND ug/Kg 5.0 03/18/24 03/18/24 2-Chlorotoluene ND ug/Kg 5.0 03/18/24 03/18/24 4-Chlorotoluene ND ug/Kg 5.0 03/18/24 03/18/24 tert-Butylbenzene ND ug/Kg 5.0 03/18/24 03/18/24 1,2,4-Trimethylbenzene ND ug/Kg 5.0 03/18/24 03/18/24 sec-Butylbenzene ND ug/Kg 5.0 03/18/24 03/18/24 para-Isopropyl Toluene ND ug/Kg 5.0 03/18/24 03/18/24 1,3-Dichlorobenzene ND ug/Kg 5.0 03/18/24 03/18/24 1,4-Dichlorobenzene ND ug/Kg 5.0 03/18/24 03/18/24 n-Butylbenzene ND ug/Kg 5.0 03/18/24 03/18/24 1,2-Dichlorobenzene ND ug/Kg 5.0 03/18/24 03/18/24 1,2-Dibromo-3-Chloropropane ND ug/Kg 5.0 03/18/24 03/18/24 1,2,4-Trichlorobenzene ND ug/Kg 5.0 03/18/24 03/18/24 Hexachlorobutadiene ND ug/Kg 5.0 03/18/24 03/18/24 Naphthalene ND ug/Kg 5.0 03/18/24 03/18/24 1,2,3-Trichlorobenzene ND ug/Kg 5.0 03/18/24 03/18/24 cis-1,4-Dichloro-2-butene ND ug/Kg 5.0 03/18/24 03/18/24 trans-1,4-Dichloro-2-butene ND ug/Kg 5.0 03/18/24 03/18/24 Xylene (total)ND ug/Kg 5.0 03/18/24 03/18/24 Surrogates Limits Dibromofluoromethane 105%%REC 70-130 03/18/24 03/18/24 1,2-Dichloroethane-d4 102%%REC 70-145 03/18/24 03/18/24 Toluene-d8 94%%REC 70-145 03/18/24 03/18/24 Bromofluorobenzene 109%%REC 70-145 03/18/24 03/18/24 QC1137064 Analyte Result Qual Units RL Prepared Analyzed 4 of 17 Batch QC 41 of 54 Type:Blank Lab ID:QC1137065 Batch:335569 Matrix:Soil Method:EPA 8260B Prep Method:EPA 5030B QC1137065 Analyte Result Qual Units RL Prepared Analyzed 3-Chloropropene ND ug/Kg 250 03/18/24 03/18/24 Freon 12 ND ug/Kg 250 03/18/24 03/18/24 Chloromethane ND ug/Kg 250 03/18/24 03/18/24 Vinyl Chloride ND ug/Kg 250 03/18/24 03/18/24 Bromomethane ND ug/Kg 250 03/18/24 03/18/24 Chloroethane ND ug/Kg 250 03/18/24 03/18/24 Trichlorofluoromethane ND ug/Kg 250 03/18/24 03/18/24 Acetone ND ug/Kg 5,000 03/18/24 03/18/24 Freon 113 ND ug/Kg 250 03/18/24 03/18/24 1,1-Dichloroethene ND ug/Kg 250 03/18/24 03/18/24 Methylene Chloride ND ug/Kg 400 03/18/24 03/18/24 MTBE ND ug/Kg 250 03/18/24 03/18/24 trans-1,2-Dichloroethene ND ug/Kg 250 03/18/24 03/18/24 1,1-Dichloroethane ND ug/Kg 250 03/18/24 03/18/24 2-Butanone ND ug/Kg 5,000 03/18/24 03/18/24 cis-1,2-Dichloroethene ND ug/Kg 250 03/18/24 03/18/24 2,2-Dichloropropane ND ug/Kg 250 03/18/24 03/18/24 Chloroform ND ug/Kg 250 03/18/24 03/18/24 Bromochloromethane ND ug/Kg 250 03/18/24 03/18/24 1,1,1-Trichloroethane ND ug/Kg 250 03/18/24 03/18/24 1,1-Dichloropropene ND ug/Kg 250 03/18/24 03/18/24 Carbon Tetrachloride ND ug/Kg 250 03/18/24 03/18/24 1,2-Dichloroethane ND ug/Kg 250 03/18/24 03/18/24 Benzene ND ug/Kg 250 03/18/24 03/18/24 Trichloroethene ND ug/Kg 250 03/18/24 03/18/24 1,2-Dichloropropane ND ug/Kg 250 03/18/24 03/18/24 Bromodichloromethane ND ug/Kg 250 03/18/24 03/18/24 Dibromomethane ND ug/Kg 250 03/18/24 03/18/24 4-Methyl-2-Pentanone ND ug/Kg 250 03/18/24 03/18/24 cis-1,3-Dichloropropene ND ug/Kg 250 03/18/24 03/18/24 Toluene ND ug/Kg 250 03/18/24 03/18/24 trans-1,3-Dichloropropene ND ug/Kg 250 03/18/24 03/18/24 1,1,2-Trichloroethane ND ug/Kg 250 03/18/24 03/18/24 1,3-Dichloropropane ND ug/Kg 250 03/18/24 03/18/24 Tetrachloroethene ND ug/Kg 250 03/18/24 03/18/24 Dibromochloromethane ND ug/Kg 250 03/18/24 03/18/24 1,2-Dibromoethane ND ug/Kg 250 03/18/24 03/18/24 Chlorobenzene ND ug/Kg 250 03/18/24 03/18/24 1,1,1,2-Tetrachloroethane ND ug/Kg 250 03/18/24 03/18/24 Ethylbenzene ND ug/Kg 250 03/18/24 03/18/24 m,p-Xylenes ND ug/Kg 500 03/18/24 03/18/24 o-Xylene ND ug/Kg 250 03/18/24 03/18/24 Styrene ND ug/Kg 250 03/18/24 03/18/24 Bromoform ND ug/Kg 250 03/18/24 03/18/24 Isopropylbenzene ND ug/Kg 250 03/18/24 03/18/24 1,1,2,2-Tetrachloroethane ND ug/Kg 250 03/18/24 03/18/24 1,2,3-Trichloropropane ND ug/Kg 250 03/18/24 03/18/24 5 of 17 Batch QC 42 of 54 Propylbenzene ND ug/Kg 250 03/18/24 03/18/24 Bromobenzene ND ug/Kg 250 03/18/24 03/18/24 1,3,5-Trimethylbenzene ND ug/Kg 250 03/18/24 03/18/24 2-Chlorotoluene ND ug/Kg 250 03/18/24 03/18/24 4-Chlorotoluene ND ug/Kg 250 03/18/24 03/18/24 tert-Butylbenzene ND ug/Kg 250 03/18/24 03/18/24 1,2,4-Trimethylbenzene ND ug/Kg 250 03/18/24 03/18/24 sec-Butylbenzene ND ug/Kg 250 03/18/24 03/18/24 para-Isopropyl Toluene ND ug/Kg 250 03/18/24 03/18/24 1,3-Dichlorobenzene ND ug/Kg 250 03/18/24 03/18/24 1,4-Dichlorobenzene ND ug/Kg 250 03/18/24 03/18/24 n-Butylbenzene ND ug/Kg 250 03/18/24 03/18/24 1,2-Dichlorobenzene ND ug/Kg 250 03/18/24 03/18/24 1,2-Dibromo-3-Chloropropane ND ug/Kg 250 03/18/24 03/18/24 1,2,4-Trichlorobenzene ND ug/Kg 250 03/18/24 03/18/24 Hexachlorobutadiene ND ug/Kg 250 03/18/24 03/18/24 Naphthalene ND ug/Kg 250 03/18/24 03/18/24 1,2,3-Trichlorobenzene ND ug/Kg 250 03/18/24 03/18/24 cis-1,4-Dichloro-2-butene ND ug/Kg 250 03/18/24 03/18/24 trans-1,4-Dichloro-2-butene ND ug/Kg 250 03/18/24 03/18/24 Xylene (total)ND ug/Kg 250 03/18/24 03/18/24 Surrogates Limits Dibromofluoromethane 106%%REC 70-130 03/18/24 03/18/24 1,2-Dichloroethane-d4 110%%REC 70-145 03/18/24 03/18/24 Toluene-d8 92%%REC 70-145 03/18/24 03/18/24 Bromofluorobenzene 106%%REC 70-145 03/18/24 03/18/24 QC1137065 Analyte Result Qual Units RL Prepared Analyzed Type:Matrix Spike Lab ID:QC1137170 Batch:335569 Matrix (Source ID):Soil (504429-001)Method:EPA 8260B Prep Method:EPA 5030B QC1137170 Analyte Result Source Sample Result Spiked Units Recovery Qual Limits DF 1,1-Dichloroethene 43.32 ND 50.00 ug/Kg 87%70-141 1 MTBE 39.67 ND 50.00 ug/Kg 79%59-130 1 Benzene 43.89 ND 50.00 ug/Kg 88%70-130 1 Trichloroethene 43.02 ND 50.00 ug/Kg 86%69-130 1 Toluene 40.54 ND 50.00 ug/Kg 81%70-130 1 Chlorobenzene 42.64 ND 50.00 ug/Kg 85%70-130 1 Surrogates Dibromofluoromethane 55.97 50.00 ug/Kg 112%70-145 1 1,2-Dichloroethane-d4 55.01 50.00 ug/Kg 110%70-145 1 Toluene-d8 47.91 50.00 ug/Kg 96%70-145 1 Bromofluorobenzene 54.11 50.00 ug/Kg 108%70-145 1 6 of 17 Batch QC 43 of 54 Type:Matrix Spike Duplicate Lab ID:QC1137171 Batch:335569 Matrix (Source ID):Soil (504429-001)Method:EPA 8260B Prep Method:EPA 5030B QC1137171 Analyte Result Source Sample Result Spiked Units Recovery Qual Limits RPD RPD Lim DF 1,1-Dichloroethene 44.51 ND 50.00 ug/Kg 89%70-141 3 43 1 MTBE 40.63 ND 50.00 ug/Kg 81%59-130 2 30 1 Benzene 44.99 ND 50.00 ug/Kg 90%70-130 2 30 1 Trichloroethene 45.10 ND 50.00 ug/Kg 90%69-130 5 30 1 Toluene 42.25 ND 50.00 ug/Kg 84%70-130 4 30 1 Chlorobenzene 44.35 ND 50.00 ug/Kg 89%70-130 4 30 1 Surrogates Dibromofluoromethane 55.86 50.00 ug/Kg 112%70-145 1 1,2-Dichloroethane-d4 56.16 50.00 ug/Kg 112%70-145 1 Toluene-d8 48.28 50.00 ug/Kg 97%70-145 1 Bromofluorobenzene 53.97 50.00 ug/Kg 108%70-145 1 7 of 17 Batch QC 44 of 54 Type:Blank Lab ID:QC1137378 Batch:335661 Matrix:Soil Method:EPA 8260B Prep Method:EPA 5030B QC1137378 Analyte Result Qual Units RL Prepared Analyzed 3-Chloropropene ND ug/Kg 5.0 03/19/24 03/19/24 Freon 12 ND ug/Kg 5.0 03/19/24 03/19/24 Chloromethane ND ug/Kg 5.0 03/19/24 03/19/24 Vinyl Chloride ND ug/Kg 5.0 03/19/24 03/19/24 Bromomethane ND ug/Kg 5.0 03/19/24 03/19/24 Chloroethane ND ug/Kg 5.0 03/19/24 03/19/24 Trichlorofluoromethane ND ug/Kg 5.0 03/19/24 03/19/24 Acetone ND ug/Kg 100 03/19/24 03/19/24 Freon 113 ND ug/Kg 5.0 03/19/24 03/19/24 1,1-Dichloroethene ND ug/Kg 5.0 03/19/24 03/19/24 Methylene Chloride ND ug/Kg 5.0 03/19/24 03/19/24 MTBE ND ug/Kg 5.0 03/19/24 03/19/24 trans-1,2-Dichloroethene ND ug/Kg 5.0 03/19/24 03/19/24 1,1-Dichloroethane ND ug/Kg 5.0 03/19/24 03/19/24 2-Butanone ND ug/Kg 100 03/19/24 03/19/24 cis-1,2-Dichloroethene ND ug/Kg 5.0 03/19/24 03/19/24 2,2-Dichloropropane ND ug/Kg 5.0 03/19/24 03/19/24 Chloroform ND ug/Kg 5.0 03/19/24 03/19/24 Bromochloromethane ND ug/Kg 5.0 03/19/24 03/19/24 1,1,1-Trichloroethane ND ug/Kg 5.0 03/19/24 03/19/24 1,1-Dichloropropene ND ug/Kg 5.0 03/19/24 03/19/24 Carbon Tetrachloride ND ug/Kg 5.0 03/19/24 03/19/24 1,2-Dichloroethane ND ug/Kg 5.0 03/19/24 03/19/24 Benzene ND ug/Kg 5.0 03/19/24 03/19/24 Trichloroethene ND ug/Kg 5.0 03/19/24 03/19/24 1,2-Dichloropropane ND ug/Kg 5.0 03/19/24 03/19/24 Bromodichloromethane ND ug/Kg 5.0 03/19/24 03/19/24 Dibromomethane ND ug/Kg 5.0 03/19/24 03/19/24 4-Methyl-2-Pentanone ND ug/Kg 5.0 03/19/24 03/19/24 cis-1,3-Dichloropropene ND ug/Kg 5.0 03/19/24 03/19/24 Toluene ND ug/Kg 5.0 03/19/24 03/19/24 trans-1,3-Dichloropropene ND ug/Kg 5.0 03/19/24 03/19/24 1,1,2-Trichloroethane ND ug/Kg 5.0 03/19/24 03/19/24 1,3-Dichloropropane ND ug/Kg 5.0 03/19/24 03/19/24 Tetrachloroethene ND ug/Kg 5.0 03/19/24 03/19/24 Dibromochloromethane ND ug/Kg 5.0 03/19/24 03/19/24 1,2-Dibromoethane ND ug/Kg 5.0 03/19/24 03/19/24 Chlorobenzene ND ug/Kg 5.0 03/19/24 03/19/24 1,1,1,2-Tetrachloroethane ND ug/Kg 5.0 03/19/24 03/19/24 Ethylbenzene ND ug/Kg 5.0 03/19/24 03/19/24 m,p-Xylenes ND ug/Kg 10 03/19/24 03/19/24 o-Xylene ND ug/Kg 5.0 03/19/24 03/19/24 Styrene ND ug/Kg 5.0 03/19/24 03/19/24 Bromoform ND ug/Kg 5.0 03/19/24 03/19/24 Isopropylbenzene ND ug/Kg 5.0 03/19/24 03/19/24 1,1,2,2-Tetrachloroethane ND ug/Kg 5.0 03/19/24 03/19/24 1,2,3-Trichloropropane ND ug/Kg 5.0 03/19/24 03/19/24 8 of 17 Batch QC 45 of 54 Propylbenzene ND ug/Kg 5.0 03/19/24 03/19/24 Bromobenzene ND ug/Kg 5.0 03/19/24 03/19/24 1,3,5-Trimethylbenzene ND ug/Kg 5.0 03/19/24 03/19/24 2-Chlorotoluene ND ug/Kg 5.0 03/19/24 03/19/24 4-Chlorotoluene ND ug/Kg 5.0 03/19/24 03/19/24 tert-Butylbenzene ND ug/Kg 5.0 03/19/24 03/19/24 1,2,4-Trimethylbenzene ND ug/Kg 5.0 03/19/24 03/19/24 sec-Butylbenzene ND ug/Kg 5.0 03/19/24 03/19/24 para-Isopropyl Toluene ND ug/Kg 5.0 03/19/24 03/19/24 1,3-Dichlorobenzene ND ug/Kg 5.0 03/19/24 03/19/24 1,4-Dichlorobenzene ND ug/Kg 5.0 03/19/24 03/19/24 n-Butylbenzene ND ug/Kg 5.0 03/19/24 03/19/24 1,2-Dichlorobenzene ND ug/Kg 5.0 03/19/24 03/19/24 1,2-Dibromo-3-Chloropropane ND ug/Kg 5.0 03/19/24 03/19/24 1,2,4-Trichlorobenzene ND ug/Kg 5.0 03/19/24 03/19/24 Hexachlorobutadiene ND ug/Kg 5.0 03/19/24 03/19/24 Naphthalene ND ug/Kg 5.0 03/19/24 03/19/24 1,2,3-Trichlorobenzene ND ug/Kg 5.0 03/19/24 03/19/24 cis-1,4-Dichloro-2-butene ND ug/Kg 5.0 03/19/24 03/19/24 trans-1,4-Dichloro-2-butene ND ug/Kg 5.0 03/19/24 03/19/24 Xylene (total)ND ug/Kg 5.0 03/19/24 03/19/24 Surrogates Limits Dibromofluoromethane 105%%REC 70-130 03/19/24 03/19/24 1,2-Dichloroethane-d4 106%%REC 70-145 03/19/24 03/19/24 Toluene-d8 94%%REC 70-145 03/19/24 03/19/24 Bromofluorobenzene 109%%REC 70-145 03/19/24 03/19/24 QC1137378 Analyte Result Qual Units RL Prepared Analyzed 9 of 17 Batch QC 46 of 54 Type:Blank Lab ID:QC1137379 Batch:335661 Matrix:Soil Method:EPA 8260B Prep Method:EPA 5030B QC1137379 Analyte Result Qual Units RL Prepared Analyzed 3-Chloropropene ND ug/Kg 250 03/19/24 03/19/24 Freon 12 ND ug/Kg 250 03/19/24 03/19/24 Chloromethane ND ug/Kg 250 03/19/24 03/19/24 Vinyl Chloride ND ug/Kg 250 03/19/24 03/19/24 Bromomethane ND ug/Kg 250 03/19/24 03/19/24 Chloroethane ND ug/Kg 250 03/19/24 03/19/24 Trichlorofluoromethane ND ug/Kg 250 03/19/24 03/19/24 Acetone ND ug/Kg 5,000 03/19/24 03/19/24 Freon 113 ND ug/Kg 250 03/19/24 03/19/24 1,1-Dichloroethene ND ug/Kg 250 03/19/24 03/19/24 Methylene Chloride ND ug/Kg 400 03/19/24 03/19/24 MTBE ND ug/Kg 250 03/19/24 03/19/24 trans-1,2-Dichloroethene ND ug/Kg 250 03/19/24 03/19/24 1,1-Dichloroethane ND ug/Kg 250 03/19/24 03/19/24 2-Butanone ND ug/Kg 5,000 03/19/24 03/19/24 cis-1,2-Dichloroethene ND ug/Kg 250 03/19/24 03/19/24 2,2-Dichloropropane ND ug/Kg 250 03/19/24 03/19/24 Chloroform ND ug/Kg 250 03/19/24 03/19/24 Bromochloromethane ND ug/Kg 250 03/19/24 03/19/24 1,1,1-Trichloroethane ND ug/Kg 250 03/19/24 03/19/24 1,1-Dichloropropene ND ug/Kg 250 03/19/24 03/19/24 Carbon Tetrachloride ND ug/Kg 250 03/19/24 03/19/24 1,2-Dichloroethane ND ug/Kg 250 03/19/24 03/19/24 Benzene ND ug/Kg 250 03/19/24 03/19/24 Trichloroethene ND ug/Kg 250 03/19/24 03/19/24 1,2-Dichloropropane ND ug/Kg 250 03/19/24 03/19/24 Bromodichloromethane ND ug/Kg 250 03/19/24 03/19/24 Dibromomethane ND ug/Kg 250 03/19/24 03/19/24 4-Methyl-2-Pentanone ND ug/Kg 250 03/19/24 03/19/24 cis-1,3-Dichloropropene ND ug/Kg 250 03/19/24 03/19/24 Toluene ND ug/Kg 250 03/19/24 03/19/24 trans-1,3-Dichloropropene ND ug/Kg 250 03/19/24 03/19/24 1,1,2-Trichloroethane ND ug/Kg 250 03/19/24 03/19/24 1,3-Dichloropropane ND ug/Kg 250 03/19/24 03/19/24 Tetrachloroethene ND ug/Kg 250 03/19/24 03/19/24 Dibromochloromethane ND ug/Kg 250 03/19/24 03/19/24 1,2-Dibromoethane ND ug/Kg 250 03/19/24 03/19/24 Chlorobenzene ND ug/Kg 250 03/19/24 03/19/24 1,1,1,2-Tetrachloroethane ND ug/Kg 250 03/19/24 03/19/24 Ethylbenzene ND ug/Kg 250 03/19/24 03/19/24 m,p-Xylenes ND ug/Kg 500 03/19/24 03/19/24 o-Xylene ND ug/Kg 250 03/19/24 03/19/24 Styrene ND ug/Kg 250 03/19/24 03/19/24 Bromoform ND ug/Kg 250 03/19/24 03/19/24 Isopropylbenzene ND ug/Kg 250 03/19/24 03/19/24 1,1,2,2-Tetrachloroethane ND ug/Kg 250 03/19/24 03/19/24 1,2,3-Trichloropropane ND ug/Kg 250 03/19/24 03/19/24 10 of 17 Batch QC 47 of 54 Propylbenzene ND ug/Kg 250 03/19/24 03/19/24 Bromobenzene ND ug/Kg 250 03/19/24 03/19/24 1,3,5-Trimethylbenzene ND ug/Kg 250 03/19/24 03/19/24 2-Chlorotoluene ND ug/Kg 250 03/19/24 03/19/24 4-Chlorotoluene ND ug/Kg 250 03/19/24 03/19/24 tert-Butylbenzene ND ug/Kg 250 03/19/24 03/19/24 1,2,4-Trimethylbenzene ND ug/Kg 250 03/19/24 03/19/24 sec-Butylbenzene ND ug/Kg 250 03/19/24 03/19/24 para-Isopropyl Toluene ND ug/Kg 250 03/19/24 03/19/24 1,3-Dichlorobenzene ND ug/Kg 250 03/19/24 03/19/24 1,4-Dichlorobenzene ND ug/Kg 250 03/19/24 03/19/24 n-Butylbenzene ND ug/Kg 250 03/19/24 03/19/24 1,2-Dichlorobenzene ND ug/Kg 250 03/19/24 03/19/24 1,2-Dibromo-3-Chloropropane ND ug/Kg 250 03/19/24 03/19/24 1,2,4-Trichlorobenzene ND ug/Kg 250 03/19/24 03/19/24 Hexachlorobutadiene ND ug/Kg 250 03/19/24 03/19/24 Naphthalene ND ug/Kg 250 03/19/24 03/19/24 1,2,3-Trichlorobenzene ND ug/Kg 250 03/19/24 03/19/24 cis-1,4-Dichloro-2-butene ND ug/Kg 250 03/19/24 03/19/24 trans-1,4-Dichloro-2-butene ND ug/Kg 250 03/19/24 03/19/24 Xylene (total)ND ug/Kg 250 03/19/24 03/19/24 Surrogates Limits Dibromofluoromethane 100%%REC 70-130 03/19/24 03/19/24 1,2-Dichloroethane-d4 108%%REC 70-145 03/19/24 03/19/24 Toluene-d8 94%%REC 70-145 03/19/24 03/19/24 Bromofluorobenzene 105%%REC 70-145 03/19/24 03/19/24 QC1137379 Analyte Result Qual Units RL Prepared Analyzed Type:Matrix Spike Lab ID:QC1137442 Batch:335661 Matrix (Source ID):Soil (504543-010)Method:EPA 8260B Prep Method:EPA 5030B QC1137442 Analyte Result Source Sample Result Spiked Units Recovery Qual Limits DF 1,1-Dichloroethene 21.03 ND 50.00 ug/Kg 42%*70-141 1 MTBE 13.57 ND 50.00 ug/Kg 27%*59-130 1 Benzene 19.29 ND 50.00 ug/Kg 39%*70-130 1 Trichloroethene 19.92 ND 50.00 ug/Kg 40%*69-130 1 Toluene 18.02 ND 50.00 ug/Kg 36%*70-130 1 Chlorobenzene 19.08 ND 50.00 ug/Kg 38%*70-130 1 Surrogates Dibromofluoromethane 55.11 50.00 ug/Kg 110%70-145 1 1,2-Dichloroethane-d4 58.98 50.00 ug/Kg 118%70-145 1 Toluene-d8 47.21 50.00 ug/Kg 94%70-145 1 Bromofluorobenzene 54.17 50.00 ug/Kg 108%70-145 1 11 of 17 Batch QC 48 of 54 Type:Matrix Spike Duplicate Lab ID:QC1137443 Batch:335661 Matrix (Source ID):Soil (504543-010)Method:EPA 8260B Prep Method:EPA 5030B QC1137443 Analyte Result Source Sample Result Spiked Units Recovery Qual Limits RPD RPD Lim DF 1,1-Dichloroethene 37.16 ND 50.00 ug/Kg 74%70-141 55*43 1 MTBE 14.88 ND 50.00 ug/Kg 30%*59-130 9 30 1 Benzene 30.72 ND 50.00 ug/Kg 61%*70-130 46*30 1 Trichloroethene 31.40 ND 50.00 ug/Kg 63%*69-130 45*30 1 Toluene 28.05 ND 50.00 ug/Kg 56%*70-130 44*30 1 Chlorobenzene 26.99 ND 50.00 ug/Kg 54%*70-130 34*30 1 Surrogates Dibromofluoromethane 57.61 50.00 ug/Kg 115%70-145 1 1,2-Dichloroethane-d4 61.37 50.00 ug/Kg 123%70-145 1 Toluene-d8 46.67 50.00 ug/Kg 93%70-145 1 Bromofluorobenzene 53.95 50.00 ug/Kg 108%70-145 1 Type:Lab Control Sample Lab ID:QC1137470 Batch:335661 Matrix:Soil Method:EPA 8260B Prep Method:EPA 5030B QC1137470 Analyte Result Spiked Units Recovery Qual Limits 1,1-Dichloroethene 42.21 50.00 ug/Kg 84%70-131 MTBE 35.06 50.00 ug/Kg 70%69-130 Benzene 41.44 50.00 ug/Kg 83%70-130 Trichloroethene 45.96 50.00 ug/Kg 92%70-130 Toluene 39.95 50.00 ug/Kg 80%70-130 Chlorobenzene 42.46 50.00 ug/Kg 85%70-130 Surrogates Dibromofluoromethane 55.59 50.00 ug/Kg 111%70-130 1,2-Dichloroethane-d4 53.29 50.00 ug/Kg 107%70-145 Toluene-d8 47.99 50.00 ug/Kg 96%70-145 Bromofluorobenzene 54.27 50.00 ug/Kg 109%70-145 Type:Lab Control Sample Duplicate Lab ID:QC1137471 Batch:335661 Matrix:Soil Method:EPA 8260B Prep Method:EPA 5030B QC1137471 Analyte Result Spiked Units Recovery Qual Limits RPD RPD Lim 1,1-Dichloroethene 43.48 50.00 ug/Kg 87%70-131 3 33 MTBE 36.60 50.00 ug/Kg 73%69-130 4 30 Benzene 43.23 50.00 ug/Kg 86%70-130 4 30 Trichloroethene 45.49 50.00 ug/Kg 91%70-130 1 30 Toluene 41.17 50.00 ug/Kg 82%70-130 3 30 Chlorobenzene 43.67 50.00 ug/Kg 87%70-130 3 30 Surrogates Dibromofluoromethane 55.43 50.00 ug/Kg 111%70-130 1,2-Dichloroethane-d4 52.31 50.00 ug/Kg 105%70-145 Toluene-d8 48.25 50.00 ug/Kg 96%70-145 Bromofluorobenzene 53.37 50.00 ug/Kg 107%70-145 12 of 17 Batch QC 49 of 54 Type:Blank Lab ID:QC1137045 Batch:335567 Matrix:Soil Method:EPA 8270C Prep Method:EPA 3546 QC1137045 Analyte Result Qual Units RL Prepared Analyzed Carbazole ND ug/Kg 250 03/17/24 03/17/24 1-Methylnaphthalene ND ug/Kg 250 03/17/24 03/17/24 Pyridine ND ug/Kg 250 03/17/24 03/17/24 N-Nitrosodimethylamine ND ug/Kg 250 03/17/24 03/17/24 Phenol ND ug/Kg 250 03/17/24 03/17/24 Aniline ND ug/Kg 250 03/17/24 03/17/24 bis(2-Chloroethyl)ether ND ug/Kg 1,200 03/17/24 03/17/24 2-Chlorophenol ND ug/Kg 250 03/17/24 03/17/24 1,3-Dichlorobenzene ND ug/Kg 250 03/17/24 03/17/24 1,4-Dichlorobenzene ND ug/Kg 250 03/17/24 03/17/24 Benzyl alcohol ND ug/Kg 250 03/17/24 03/17/24 1,2-Dichlorobenzene ND ug/Kg 250 03/17/24 03/17/24 2-Methylphenol ND ug/Kg 250 03/17/24 03/17/24 bis(2-Chloroisopropyl) ether ND ug/Kg 250 03/17/24 03/17/24 3-,4-Methylphenol ND ug/Kg 400 03/17/24 03/17/24 N-Nitroso-di-n-propylamine ND ug/Kg 250 03/17/24 03/17/24 Hexachloroethane ND ug/Kg 250 03/17/24 03/17/24 Nitrobenzene ND ug/Kg 1,200 03/17/24 03/17/24 Isophorone ND ug/Kg 250 03/17/24 03/17/24 2-Nitrophenol ND ug/Kg 250 03/17/24 03/17/24 2,4-Dimethylphenol ND ug/Kg 250 03/17/24 03/17/24 Benzoic acid ND ug/Kg 1,200 03/17/24 03/17/24 bis(2-Chloroethoxy)methane ND ug/Kg 250 03/17/24 03/17/24 2,4-Dichlorophenol ND ug/Kg 250 03/17/24 03/17/24 1,2,4-Trichlorobenzene ND ug/Kg 250 03/17/24 03/17/24 Naphthalene ND ug/Kg 250 03/17/24 03/17/24 4-Chloroaniline ND ug/Kg 250 03/17/24 03/17/24 Hexachlorobutadiene ND ug/Kg 250 03/17/24 03/17/24 4-Chloro-3-methylphenol ND ug/Kg 250 03/17/24 03/17/24 2-Methylnaphthalene ND ug/Kg 250 03/17/24 03/17/24 Hexachlorocyclopentadiene ND ug/Kg 1,200 03/17/24 03/17/24 2,4,6-Trichlorophenol ND ug/Kg 250 03/17/24 03/17/24 2,4,5-Trichlorophenol ND ug/Kg 250 03/17/24 03/17/24 2-Chloronaphthalene ND ug/Kg 250 03/17/24 03/17/24 2-Nitroaniline ND ug/Kg 250 03/17/24 03/17/24 Dimethylphthalate ND ug/Kg 250 03/17/24 03/17/24 Acenaphthylene ND ug/Kg 250 03/17/24 03/17/24 2,6-Dinitrotoluene ND ug/Kg 250 03/17/24 03/17/24 3-Nitroaniline ND ug/Kg 250 03/17/24 03/17/24 Acenaphthene ND ug/Kg 250 03/17/24 03/17/24 2,4-Dinitrophenol ND ug/Kg 1,200 03/17/24 03/17/24 4-Nitrophenol ND ug/Kg 250 03/17/24 03/17/24 Dibenzofuran ND ug/Kg 250 03/17/24 03/17/24 2,4-Dinitrotoluene ND ug/Kg 250 03/17/24 03/17/24 Diethylphthalate ND ug/Kg 250 03/17/24 03/17/24 Fluorene ND ug/Kg 250 03/17/24 03/17/24 4-Chlorophenyl-phenylether ND ug/Kg 250 03/17/24 03/17/24 13 of 17 Batch QC 50 of 54 4-Nitroaniline ND ug/Kg 250 03/17/24 03/17/24 4,6-Dinitro-2-methylphenol ND ug/Kg 250 03/17/24 03/17/24 N-Nitrosodiphenylamine ND ug/Kg 250 03/17/24 03/17/24 1,2-diphenylhydrazine (as azobenzene)ND ug/Kg 250 03/17/24 03/17/24 4-Bromophenyl-phenylether ND ug/Kg 250 03/17/24 03/17/24 Hexachlorobenzene ND ug/Kg 250 03/17/24 03/17/24 Pentachlorophenol ND ug/Kg 1,200 03/17/24 03/17/24 Phenanthrene ND ug/Kg 250 03/17/24 03/17/24 Anthracene ND ug/Kg 250 03/17/24 03/17/24 Di-n-butylphthalate ND ug/Kg 250 03/17/24 03/17/24 Fluoranthene ND ug/Kg 250 03/17/24 03/17/24 Benzidine ND ug/Kg 1,200 03/17/24 03/17/24 Pyrene ND ug/Kg 250 03/17/24 03/17/24 Butylbenzylphthalate ND ug/Kg 250 03/17/24 03/17/24 3,3'-Dichlorobenzidine ND ug/Kg 1,200 03/17/24 03/17/24 Benzo(a)anthracene ND ug/Kg 250 03/17/24 03/17/24 Chrysene ND ug/Kg 250 03/17/24 03/17/24 bis(2-Ethylhexyl)phthalate ND ug/Kg 250 03/17/24 03/17/24 Di-n-octylphthalate ND ug/Kg 250 03/17/24 03/17/24 Benzo(b)fluoranthene ND ug/Kg 250 03/17/24 03/17/24 Benzo(k)fluoranthene ND ug/Kg 250 03/17/24 03/17/24 Benzo(a)pyrene ND ug/Kg 250 03/17/24 03/17/24 Indeno(1,2,3-cd)pyrene ND ug/Kg 250 03/17/24 03/17/24 Dibenz(a,h)anthracene ND ug/Kg 250 03/17/24 03/17/24 Benzo(g,h,i)perylene ND ug/Kg 250 03/17/24 03/17/24 Surrogates Limits 2-Fluorophenol 77%%REC 29-120 03/17/24 03/17/24 Phenol-d6 80%%REC 30-120 03/17/24 03/17/24 2,4,6-Tribromophenol 79%%REC 32-120 03/17/24 03/17/24 Nitrobenzene-d5 77%%REC 33-120 03/17/24 03/17/24 2-Fluorobiphenyl 77%%REC 39-120 03/17/24 03/17/24 Terphenyl-d14 86%%REC 44-125 03/17/24 03/17/24 QC1137045 Analyte Result Qual Units RL Prepared Analyzed 14 of 17 Batch QC 51 of 54 Type:Lab Control Sample Lab ID:QC1137046 Batch:335567 Matrix:Soil Method:EPA 8270C Prep Method:EPA 3546 QC1137046 Analyte Result Spiked Units Recovery Qual Limits Phenol 3,412 3769 ug/Kg 91%42-120 2-Chlorophenol 3,132 3769 ug/Kg 83%41-120 1,4-Dichlorobenzene 3,216 3769 ug/Kg 85%36-120 3-,4-Methylphenol 3,423 3769 ug/Kg 91%42-120 N-Nitroso-di-n-propylamine 3,643 3769 ug/Kg 97%43-121 2,4-Dimethylphenol 2,807 3769 ug/Kg 74%25-120 1,2,4-Trichlorobenzene 3,304 3769 ug/Kg 88%38-120 4-Chloro-3-methylphenol 3,607 3769 ug/Kg 96%40-125 2,4,5-Trichlorophenol 3,693 3769 ug/Kg 98%40-124 Acenaphthene 3,391 3769 ug/Kg 90%35-126 4-Nitrophenol 3,786 3769 ug/Kg 100%24-128 2,4-Dinitrotoluene 3,886 3769 ug/Kg 103%40-131 Pentachlorophenol 2,390 3769 ug/Kg 63%35-120 Pyrene 3,683 3769 ug/Kg 98%37-135 Chrysene 3,408 3769 ug/Kg 90%38-132 Benzo(b)fluoranthene 3,733 3769 ug/Kg 99%38-135 Surrogates 2-Fluorophenol 1,636 2010 ug/Kg 81%29-120 Phenol-d6 1,748 2010 ug/Kg 87%30-120 2,4,6-Tribromophenol 1,880 2010 ug/Kg 94%32-120 Nitrobenzene-d5 1,700 2010 ug/Kg 85%33-120 2-Fluorobiphenyl 1,682 2010 ug/Kg 84%39-120 Terphenyl-d14 1,824 2010 ug/Kg 91%44-125 15 of 17 Batch QC 52 of 54 Type:Matrix Spike Lab ID:QC1137047 Batch:335567 Matrix (Source ID):Soil (504435-002)Method:EPA 8270C Prep Method:EPA 3546 QC1137047 Analyte Result Source Sample Result Spiked Units Recovery Qual Limits DF Phenol 3,218 ND 3769 ug/Kg 85%37-120 1 2-Chlorophenol 3,078 ND 3769 ug/Kg 82%33-120 1 1,4-Dichlorobenzene 3,111 ND 3769 ug/Kg 83%32-120 1 3-,4-Methylphenol 3,344 ND 3769 ug/Kg 89%37-120 1 N-Nitroso-di-n-propylamine 3,619 ND 3769 ug/Kg 96%32-120 1 2,4-Dimethylphenol 2,684 ND 3769 ug/Kg 71%32-120 1 1,2,4-Trichlorobenzene 3,176 ND 3769 ug/Kg 84%33-120 1 4-Chloro-3-methylphenol 3,735 ND 3769 ug/Kg 99%41-121 1 2,4,5-Trichlorophenol 3,872 ND 3769 ug/Kg 103%40-120 1 Acenaphthene 3,385 ND 3769 ug/Kg 90%37-120 1 4-Nitrophenol 3,757 ND 3769 ug/Kg 100%20-141 1 2,4-Dinitrotoluene 3,959 ND 3769 ug/Kg 105%33-128 1 Pentachlorophenol 2,500 ND 3769 ug/Kg 66%28-132 1 Pyrene 3,768 ND 3769 ug/Kg 100%39-135 1 Chrysene 3,480 ND 3769 ug/Kg 92%37-135 1 Benzo(b)fluoranthene 3,850 ND 3769 ug/Kg 102%34-139 1 Surrogates 2-Fluorophenol 1,538 2010 ug/Kg 77%29-120 1 Phenol-d6 1,649 2010 ug/Kg 82%30-120 1 2,4,6-Tribromophenol 1,918 2010 ug/Kg 95%32-120 1 Nitrobenzene-d5 1,677 2010 ug/Kg 83%33-120 1 2-Fluorobiphenyl 1,699 2010 ug/Kg 85%39-120 1 Terphenyl-d14 1,796 2010 ug/Kg 89%44-125 1 16 of 17 Batch QC 53 of 54 Type:Matrix Spike Duplicate Lab ID:QC1137048 Batch:335567 Matrix (Source ID):Soil (504435-002)Method:EPA 8270C Prep Method:EPA 3546 QC1137048 Analyte Result Source Sample Result Spiked Units Recovery Qual Limits RPD RPD Lim DF Phenol 3,094 ND 3750 ug/Kg 83%37-120 3 49 1 2-Chlorophenol 2,974 ND 3750 ug/Kg 79%33-120 3 52 1 1,4-Dichlorobenzene 3,058 ND 3750 ug/Kg 82%32-120 1 50 1 3-,4-Methylphenol 3,190 ND 3750 ug/Kg 85%37-120 4 54 1 N-Nitroso-di-n-propylamine 3,465 ND 3750 ug/Kg 92%32-120 4 50 1 2,4-Dimethylphenol 2,595 ND 3750 ug/Kg 69%32-120 3 50 1 1,2,4-Trichlorobenzene 3,096 ND 3750 ug/Kg 83%33-120 2 50 1 4-Chloro-3-methylphenol 3,485 ND 3750 ug/Kg 93%41-121 6 43 1 2,4,5-Trichlorophenol 3,673 ND 3750 ug/Kg 98%40-120 5 47 1 Acenaphthene 3,259 ND 3750 ug/Kg 87%37-120 3 48 1 4-Nitrophenol 3,392 ND 3750 ug/Kg 90%20-141 10 30 1 2,4-Dinitrotoluene 3,698 ND 3750 ug/Kg 99%33-128 6 50 1 Pentachlorophenol 2,334 ND 3750 ug/Kg 62%28-132 6 30 1 Pyrene 3,564 ND 3750 ug/Kg 95%39-135 5 41 1 Chrysene 3,379 ND 3750 ug/Kg 90%37-135 2 46 1 Benzo(b)fluoranthene 3,742 ND 3750 ug/Kg 100%34-139 2 47 1 Surrogates 2-Fluorophenol 1,569 2000 ug/Kg 78%29-120 1 Phenol-d6 1,604 2000 ug/Kg 80%30-120 1 2,4,6-Tribromophenol 1,807 2000 ug/Kg 90%32-120 1 Nitrobenzene-d5 1,615 2000 ug/Kg 81%33-120 1 2-Fluorobiphenyl 1,639 2000 ug/Kg 82%39-120 1 Terphenyl-d14 1,742 2000 ug/Kg 87%44-125 1 *Value is outside QC limits ND Not Detected 17 of 17 Batch QC 54 of 54 Project Number 2162RV43 April 5, 2024 E2C Remediation Appendix E APPENDIX E RWQCB Vapor and Soil ESLs For full ESL Spectrum visit: https://www.waterboards.ca.gov/sanfranciscobay/water_issues/programs/sitecleanu pprogram.html#screeninglevelsandguidance Cancer Risk Non- cancer Hazard Cancer Risk Non- cancer Hazard Cancer Risk Non- cancer Hazard Cancer Risk Non- cancer Hazard Acenaphthene [PAH]83-32-9 --------1.7E+04 1.7E+04 Odor/Nuis --------5.1E+02 5.1E+02 Nuis/Odor Acenaphthylene [PAH]208-96-8 ---------------------------- Acetone 67-64-1 --1.1E+06 --4.5E+06 1.0E+06 1.0E+06 Odor/Nuis --3.2E+04 --1.4E+05 3.1E+04 3.1E+04 Nuis/Odor Aldrin 309-00-2 1.9E-02 --8.3E-02 --8.8E+03 1.9E-02 Canc-Risk 5.7E-04 --2.5E-03 --2.6E+02 5.7E-04 Canc-Risk Anthracene [PAH]120-12-7 ---------------------------- Antimony 7440-36-0 ---------------------------- Arsenic 7440-38-2 ---------------------------- Barium 7440-39-3 ---------------------------- Benzene 71-43-2 3.2E+00 1.0E+02 1.4E+01 4.4E+02 1.6E+05 3.2E+00 Canc-Risk 9.7E-02 3.1E+00 4.2E-01 1.3E+01 4.9E+03 9.7E-02 Canc-Risk Benzo[a]anthracene [PAH]56-55-3 3.1E-01 --3.7E+00 ----3.1E-01 Canc-Risk 9.2E-03 --1.1E-01 ----9.2E-03 Canc-Risk Benzo[a]pyrene [PAH]50-32-8 ---------------------------- Benzo[b]fluoranthene [PAH]205-99-2 ---------------------------- Benzo[g,h,i]perylene [PAH]191-24-2 ---------------------------- Benzo[k]fluoranthene [PAH]207-08-9 ---------------------------- Beryllium 7440-41-7 ---------------------------- 1,1-Biphenyl 92-52-4 --1.4E+01 --5.8E+01 2.0E+03 1.4E+01 NC-Hazard --4.2E-01 --1.8E+00 6.0E+01 4.2E-01 NC-Hazard Bis(2-chloroethyl) ether 111-44-4 1.3E-01 --5.8E-01 --9.6E+03 1.3E-01 Canc-Risk 4.0E-03 --1.7E-02 --2.9E+02 4.0E-03 Canc-Risk Bis(2-chloro-1-methylethyl) ether 108-60-1 9.4E+00 --4.1E+01 --7.5E+04 9.4E+00 Canc-Risk 2.8E-01 --1.2E+00 --2.2E+03 2.8E-01 Canc-Risk Bis(2-ethylhexyl) phthalate 117-81-7 ---------------------------- Boron 7440-42-8 ---------------------------- Bromodichloromethane 75-27-4 2.5E+00 --1.1E+01 --3.7E+08 2.5E+00 Canc-Risk 7.6E-02 --3.3E-01 --1.1E+07 7.6E-02 Canc-Risk Bromoform (Tribromomethane)75-25-2 8.5E+01 --3.7E+02 --4.5E+05 8.5E+01 Canc-Risk 2.6E+00 --1.1E+01 --1.3E+04 2.6E+00 Canc-Risk Bromomethane 74-83-9 --1.7E+02 --7.3E+02 2.7E+06 1.7E+02 NC-Hazard --5.2E+00 --2.2E+01 8.0E+04 5.2E+00 NC-Hazard Cadmium (soil)7440-43-9 ---------------------------- Cadmium (water)7440-43-9 ---------------------------- Carbon tetrachloride 56-23-5 1.6E+01 1.4E+03 6.8E+01 5.8E+03 2.1E+06 1.6E+01 Canc-Risk 4.7E-01 4.2E+01 2.0E+00 1.8E+02 6.3E+04 4.7E-01 Canc-Risk Chlordane 12789-03-6 2.8E-01 2.4E+01 1.2E+00 1.0E+02 2.8E+02 2.8E-01 Canc-Risk 8.3E-03 7.3E-01 3.6E-02 3.1E+00 8.4E+00 8.3E-03 Canc-Risk p-Chloroaniline 106-47-8 ---------------------------- Chlorobenzene 108-90-7 --1.7E+03 --7.3E+03 3.3E+04 1.7E+03 NC-Hazard --5.2E+01 --2.2E+02 1.0E+03 5.2E+01 NC-Hazard Chloroethane 75-00-3 --3.5E+05 --1.5E+06 1.3E+07 3.5E+05 NC-Hazard --1.0E+04 --4.4E+04 3.8E+05 1.0E+04 NC-Hazard Chloroform 67-66-3 4.1E+00 3.4E+03 1.8E+01 1.4E+04 1.4E+07 4.1E+00 Canc-Risk 1.2E-01 1.0E+02 5.3E-01 4.3E+02 4.2E+05 1.2E-01 Canc-Risk Chloromethane 74-87-3 --3.1E+03 --1.3E+04 --3.1E+03 NC-Hazard --9.4E+01 --3.9E+02 --9.4E+01 NC-Hazard 2-Chlorophenol 95-57-8 --------6.3E+02 6.3E+02 Odor/Nuis --------1.9E+01 1.9E+01 Nuis/Odor Chromium (total)7440-47-3 ---------------------------- Subslab/Soil Gas Vapor Intrusion: Human Health Risk Levels (Table SG-1) Residential Commercial/ Industrial Residential Commercial/ Industrial 2019 (Rev. 2) Chemicals CAS No. Summary of Vapor ESLs Subslab/ Soil Gas (µg/m3)Indoor Air (µg/m3) Tier 1 ESL Basis Tier 1 ESL Basis Odor Nuisance Levels (Table IA-2) Direct Exposure Human Health Risk Levels (Table IA-1) Subslab/ Soil Gas Vapor Intrusion: Odor Nuisance Levels (Table SG-2) 1 of 4 Vapor Summary Cancer Risk Non- cancer Hazard Cancer Risk Non- cancer Hazard Cancer Risk Non- cancer Hazard Cancer Risk Non- cancer Hazard Subslab/Soil Gas Vapor Intrusion: Human Health Risk Levels (Table SG-1) Residential Commercial/ Industrial Residential Commercial/ Industrial 2019 (Rev. 2) Chemicals CAS No. Summary of Vapor ESLs Subslab/ Soil Gas (µg/m3)Indoor Air (µg/m3) Tier 1 ESL Basis Tier 1 ESL Basis Odor Nuisance Levels (Table IA-2) Direct Exposure Human Health Risk Levels (Table IA-1) Subslab/ Soil Gas Vapor Intrusion: Odor Nuisance Levels (Table SG-2) Chromium III 16065-83-1 ---------------------------- Chromium VI 18540-29-9 ---------------------------- Chrysene [PAH]218-01-9 ---------------------------- Cobalt 7440-48-4 ---------------------------- Copper 7440-50-8 ---------------------------- Cyanide 57-12-5 --2.8E+01 --1.2E+02 2.2E+04 2.8E+01 NC-Hazard --8.3E-01 --3.5E+00 6.5E+02 8.3E-01 NC-Hazard Dibenz[a,h]anthracene [PAH]53-70-3 ---------------------------- Dibromochloromethane 124-48-1 ---------------------------- 1,2-dibromo-3-chloropropane 96-12-8 5.6E-03 7.0E+00 6.8E-02 2.9E+01 --5.6E-03 Canc-Risk 1.7E-04 2.1E-01 2.0E-03 8.8E-01 --1.7E-04 Canc-Risk 1,2-Dibromoethane 106-93-4 1.6E-01 2.8E+01 6.8E-01 1.2E+02 6.7E+06 1.6E-01 Canc-Risk 4.7E-03 8.3E-01 2.0E-02 3.5E+00 2.0E+05 4.7E-03 Canc-Risk 1,2-Dichlorobenzene 95-50-1 --7.0E+03 --2.9E+04 1.0E+07 7.0E+03 NC-Hazard --2.1E+02 --8.8E+02 3.1E+05 2.1E+02 NC-Hazard 1,3-Dichlorobenzene 541-73-1 ---------------------------- 1,4-Dichlorobenzene 106-46-7 8.5E+00 2.8E+04 3.7E+01 1.2E+05 3.7E+04 8.5E+00 Canc-Risk 2.6E-01 8.3E+02 1.1E+00 3.5E+03 1.1E+03 2.6E-01 Canc-Risk 3,3-Dichlorobenzidine 91-94-1 ---------------------------- DDD 72-54-8 ---------------------------- DDE 72-55-9 9.6E-01 --4.2E+00 ----9.6E-01 Canc-Risk 2.9E-02 --1.3E-01 ----2.9E-02 Canc-Risk DDT 50-29-3 ---------------------------- 1,1-Dichloroethane 75-34-3 5.8E+01 --2.6E+02 --4.2E+06 5.8E+01 Canc-Risk 1.8E+00 --7.7E+00 --1.3E+05 1.8E+00 Canc-Risk 1,2-Dichloroethane 107-06-2 3.6E+00 2.4E+02 1.6E+01 1.0E+03 8.1E+04 3.6E+00 Canc-Risk 1.1E-01 7.3E+00 4.7E-01 3.1E+01 2.4E+03 1.1E-01 Canc-Risk 1,1-Dichloroethene 75-35-4 --2.4E+03 --1.0E+04 6.7E+07 2.4E+03 NC-Hazard --7.3E+01 --3.1E+02 2.0E+06 7.3E+01 NC-Hazard cis-1,2-Dichloroethene 156-59-2 --2.8E+02 --1.2E+03 --2.8E+02 NC-Hazard --8.3E+00 --3.5E+01 --8.3E+00 NC-Hazard trans-1,2-Dichloroethene 156-60-5 --2.8E+03 --1.2E+04 2.2E+06 2.8E+03 NC-Hazard --8.3E+01 --3.5E+02 6.7E+04 8.3E+01 NC-Hazard 2,4-Dichlorophenol 120-83-2 --------4.7E+04 4.7E+04 Odor/Nuis --------1.4E+03 1.4E+03 Nuis/Odor 1,2-Dichloropropane 78-87-5 9.4E+00 1.4E+02 4.1E+01 5.8E+02 4.0E+04 9.4E+00 Canc-Risk 2.8E-01 4.2E+00 1.2E+00 1.8E+01 1.2E+03 2.8E-01 Canc-Risk 1,3-Dichloropropene 542-75-6 5.8E+00 7.0E+02 2.6E+01 2.9E+03 1.4E+05 5.8E+00 Canc-Risk 1.8E-01 2.1E+01 7.7E-01 8.8E+01 4.2E+03 1.8E-01 Canc-Risk Dieldrin 60-57-1 2.0E-02 --8.9E-02 ----2.0E-02 Canc-Risk 6.1E-04 --2.7E-03 ----6.1E-04 Canc-Risk Diethyl phthalate 84-66-2 ---------------------------- Dimethyl phthalate 131-11-3 ---------------------------- 2,4-Dimethylphenol 105-67-9 --------3.3E+01 3.3E+01 Odor/Nuis --------1.0E+00 1.0E+00 Nuis/Odor 2,4-Dinitrophenol 51-28-5 ---------------------------- 2,4-Dinitrotoluene 121-14-2 ---------------------------- 1,4-Dioxane 123-91-1 1.2E+01 1.0E+03 5.3E+01 4.4E+03 2.0E+07 1.2E+01 Canc-Risk 3.6E-01 3.1E+01 1.6E+00 1.3E+02 6.1E+05 3.6E-01 Canc-Risk Dioxin (2,3,7,8-TCDD)1746-01-6 2.5E-06 1.4E-03 1.1E-05 5.8E-03 --2.5E-06 Canc-Risk 7.4E-08 4.2E-05 3.2E-07 1.8E-04 --7.4E-08 Canc-Risk Endosulfan 115-29-7 ---------------------------- 2 of 4 Vapor Summary Cancer Risk Non- cancer Hazard Cancer Risk Non- cancer Hazard Cancer Risk Non- cancer Hazard Cancer Risk Non- cancer Hazard Subslab/Soil Gas Vapor Intrusion: Human Health Risk Levels (Table SG-1) Residential Commercial/ Industrial Residential Commercial/ Industrial 2019 (Rev. 2) Chemicals CAS No. Summary of Vapor ESLs Subslab/ Soil Gas (µg/m3)Indoor Air (µg/m3) Tier 1 ESL Basis Tier 1 ESL Basis Odor Nuisance Levels (Table IA-2) Direct Exposure Human Health Risk Levels (Table IA-1) Subslab/ Soil Gas Vapor Intrusion: Odor Nuisance Levels (Table SG-2) Endrin 72-20-8 ---------------------------- Ethylbenzene 100-41-4 3.7E+01 3.5E+04 1.6E+02 1.5E+05 6.7E+04 3.7E+01 Canc-Risk 1.1E+00 1.0E+03 4.9E+00 4.4E+03 2.0E+03 1.1E+00 Canc-Risk Fluoranthene [PAH]206-44-0 ---------------------------- Fluorene [PAH]86-73-7 ---------------------------- Heptachlor 76-44-8 7.2E-02 --3.1E-01 --1.0E+04 7.2E-02 Canc-Risk 2.2E-03 --9.4E-03 --3.0E+02 2.2E-03 Canc-Risk Heptachlor epoxide 1024-57-3 3.6E-02 --1.6E-01 --1.0E+04 3.6E-02 Canc-Risk 1.1E-03 --4.7E-03 --3.0E+02 1.1E-03 Canc-Risk Hexachlorobenzene 118-74-1 1.8E-01 --8.0E-01 ----1.8E-01 Canc-Risk 5.5E-03 --2.4E-02 ----5.5E-03 Canc-Risk Hexachlorobutadiene 87-68-3 4.3E+00 --1.9E+01 --4.0E+05 4.3E+00 Canc-Risk 1.3E-01 --5.6E-01 --1.2E+04 1.3E-01 Canc-Risk g-Hexachlorocyclohexane (Lindane)58-89-9 ---------------------------- Hexachloroethane 67-72-1 8.5E+00 1.0E+03 3.7E+01 4.4E+03 --8.5E+00 Canc-Risk 2.6E-01 3.1E+01 1.1E+00 1.3E+02 --2.6E-01 Canc-Risk Indeno[1,2,3-c,d]pyrene [PAH]193-39-5 ---------------------------- Lead 7439-92-1 ---------------------------- Mercury (elemental)7439-97-6 --1.0E+00 --4.4E+00 --1.0E+00 NC-Hazard --3.1E-02 --1.3E-01 --3.1E-02 NC-Hazard Methoxychlor 72-43-5 ---------------------------- Methylene chloride 75-09-2 3.4E+01 1.4E+04 4.1E+02 5.8E+04 1.9E+07 3.4E+01 Canc-Risk 1.0E+00 4.2E+02 1.2E+01 1.8E+03 5.6E+05 1.0E+00 Canc-Risk Methyl ethyl ketone 78-93-3 --1.7E+05 --7.3E+05 1.1E+06 1.7E+05 NC-Hazard --5.2E+03 --2.2E+04 3.2E+04 5.2E+03 NC-Hazard Methyl isobutyl ketone 108-10-1 --1.0E+05 --4.4E+05 1.4E+04 1.4E+04 Odor/Nuis --3.1E+03 --1.3E+04 4.2E+02 4.2E+02 Nuis/Odor Methyl mercury 22967-92-6 ---------------------------- 2-Methylnaphthalene 91-57-6 --------2.3E+03 2.3E+03 Odor/Nuis --------6.8E+01 6.8E+01 Nuis/Odor Methyl tertiary butyl ether (MTBE)1634-04-4 3.6E+02 1.0E+05 1.6E+03 4.4E+05 1.8E+04 3.6E+02 Canc-Risk 1.1E+01 3.1E+03 4.7E+01 1.3E+04 5.3E+02 1.1E+01 Canc-Risk Molybdenum 7439-98-7 ---------------------------- Naphthalene [PAH]91-20-3 2.8E+00 1.0E+02 1.2E+01 4.4E+02 1.5E+04 2.8E+00 Canc-Risk 8.3E-02 3.1E+00 3.6E-01 1.3E+01 4.4E+02 8.3E-02 Canc-Risk Nickel 7440-02-0 ---------------------------- Pentachlorophenol 87-86-5 ---------------------------- Perchlorate 7790-98-9 ---------------------------- Petroleum - Gasoline ----2.0E+04 --8.3E+04 3.3E+03 3.3E+03 Odor/Nuis --6.0E+02 --2.5E+03 1.0E+02 1.0E+02 Nuis/Odor Petroleum - Stoddard Solvent ----1.1E+04 --4.6E+04 3.3E+04 1.1E+04 NC-Hazard --3.3E+02 --1.4E+03 1.0E+03 3.3E+02 NC-Hazard Petroleum - Jet Fuel ----1.1E+04 --4.6E+04 3.3E+04 1.1E+04 NC-Hazard --3.3E+02 --1.4E+03 1.0E+03 3.3E+02 NC-Hazard Petroleum - Diesel ----8.9E+03 --3.7E+04 3.3E+04 8.9E+03 NC-Hazard --2.7E+02 --1.1E+03 1.0E+03 2.7E+02 NC-Hazard Petroleum - HOPs ------------------------------ Petroleum - Motor Oil ------------------------------ Phenanthrene [PAH]85-01-8 --------1.8E+03 1.8E+03 Odor/Nuis --------5.5E+01 5.5E+01 Nuis/Odor Phenol 108-95-2 --------5.2E+03 5.2E+03 Odor/Nuis --------1.6E+02 1.6E+02 Nuis/Odor Polychlorinated biphenyls (PCBs)1336-36-3 1.6E-01 --7.2E-01 ----1.6E-01 Canc-Risk 4.9E-03 --2.2E-02 ----4.9E-03 Canc-Risk 3 of 4 Vapor Summary Cancer Risk Non- cancer Hazard Cancer Risk Non- cancer Hazard Cancer Risk Non- cancer Hazard Cancer Risk Non- cancer Hazard Subslab/Soil Gas Vapor Intrusion: Human Health Risk Levels (Table SG-1) Residential Commercial/ Industrial Residential Commercial/ Industrial 2019 (Rev. 2) Chemicals CAS No. Summary of Vapor ESLs Subslab/ Soil Gas (µg/m3)Indoor Air (µg/m3) Tier 1 ESL Basis Tier 1 ESL Basis Odor Nuisance Levels (Table IA-2) Direct Exposure Human Health Risk Levels (Table IA-1) Subslab/ Soil Gas Vapor Intrusion: Odor Nuisance Levels (Table SG-2) Pyrene [PAH]129-00-0 ---------------------------- Selenium 7782-49-2 ---------------------------- Silver 7440-22-4 ---------------------------- Styrene 100-42-5 --3.1E+04 --1.3E+05 4.5E+04 3.1E+04 NC-Hazard --9.4E+02 --3.9E+03 1.4E+03 9.4E+02 NC-Hazard tert-Butyl alcohol 75-65-0 ---------------------------- 1,1,1,2-Tetrachloroethane 630-20-6 1.3E+01 --5.5E+01 ----1.3E+01 Canc-Risk 3.8E-01 --1.7E+00 ----3.8E-01 Canc-Risk 1,1,2,2-Tetrachloroethane 79-34-5 1.6E+00 --7.0E+00 --3.5E+05 1.6E+00 Canc-Risk 4.8E-02 --2.1E-01 --1.0E+04 4.8E-02 Canc-Risk Tetrachloroethene 127-18-4 1.5E+01 1.4E+03 6.7E+01 5.8E+03 1.1E+06 1.5E+01 Canc-Risk 4.6E-01 4.2E+01 2.0E+00 1.8E+02 3.2E+04 4.6E-01 Canc-Risk Thallium 7440-28-0 ---------------------------- Toluene 108-88-3 --1.0E+04 --4.4E+04 1.0E+06 1.0E+04 NC-Hazard --3.1E+02 --1.3E+03 3.0E+04 3.1E+02 NC-Hazard Toxaphene 8001-35-2 ---------------------------- 1,2,4-Trichlorobenzene 120-82-1 --7.0E+01 --2.9E+02 7.3E+05 7.0E+01 NC-Hazard --2.1E+00 --8.8E+00 2.2E+04 2.1E+00 NC-Hazard 1,1,1-Trichloroethane 71-55-6 --3.5E+04 --1.5E+05 2.2E+06 3.5E+04 NC-Hazard --1.0E+03 --4.4E+03 6.5E+04 1.0E+03 NC-Hazard 1,1,2-Trichloroethane 79-00-5 5.8E+00 7.0E+00 2.6E+01 2.9E+01 --5.8E+00 Canc-Risk 1.8E-01 2.1E-01 7.7E-01 8.8E-01 --1.8E-01 Canc-Risk Trichloroethene 79-01-6 1.6E+01 7.0E+01 1.0E+02 2.9E+02 4.5E+07 1.6E+01 Canc-Risk 4.8E-01 2.1E+00 3.0E+00 8.8E+00 1.4E+06 4.8E-01 Canc-Risk 2,4,5-Trichlorophenol 95-95-4 ---------------------------- 2,4,6-Trichlorophenol 88-06-2 --------1.0E+01 1.0E+01 Odor/Nuis --------3.0E-01 3.0E-01 Nuis/Odor 1,2,3-Trichloropropane 96-18-4 --1.0E+01 --4.4E+01 --1.0E+01 NC-Hazard --3.1E-01 --1.3E+00 --3.1E-01 NC-Hazard Vanadium 7440-62-2 ---------------------------- Vinyl chloride 75-01-4 3.2E-01 3.5E+03 5.2E+00 1.5E+04 2.6E+07 3.2E-01 Canc-Risk 9.5E-03 1.0E+02 1.6E-01 4.4E+02 7.7E+05 9.5E-03 Canc-Risk Xylenes 1330-20-7 --3.5E+03 --1.5E+04 1.5E+04 3.5E+03 NC-Hazard --1.0E+02 --4.4E+02 4.4E+02 1.0E+02 NC-Hazard Zinc 7440-66-6 ---------------------------- Abbreviations: Canc-Risk - Cancer DDD - Dichlorodiphenyldichloroethane DDE - Dichlorodiphenyldichloroethene DDT - Dichlorodiphenyltrichloroethane HOPs - Hydrocarbon Oxidation Products (biodegradation metabolites and photo-oxidation products of petroleum hydrocarbons). See User's Guide Chapter 4 for further information. NC - Noncancer Odor/Nuis - Odor Nuisance PAH - Polycyclic aromatic hydrocarbon TCDD - Tetrachlorodibenzodioxin 4 of 4 Vapor Summary Significantly Vegetated Area Minimally Vegetated Area Cancer Risk Non- cancer Hazard Cancer Risk Non- cancer Hazard Cancer Risk Non- cancer Hazard Examples: Parkland or single family homes with yards Examples: High density residential or commercial/ industrial areas Acenaphthene [PAH]83-32-9 --3.6E+03 --4.5E+04 --1.0E+04 6.6E+03 4.6E+04 1.2E+01 1.2E+01 1.2E+02 1.0E+03 2.5E+03 2.5E+03 1.2E+01 Leaching Acenaphthylene [PAH]208-96-8 ----------------6.4E+00 6.4E+00 5.9E+01 5.0E+02 1.0E+03 1.0E+03 6.4E+00 Leaching Acetone 67-64-1 --6.1E+04 --6.7E+05 --2.7E+05 5.6E+01 5.6E+01 9.2E-01 9.2E-01 1.1E+05 5.0E+02 1.0E+03 1.0E+03 9.2E-01 Leaching Aldrin 309-00-2 3.5E-02 2.1E+00 1.5E-01 2.9E+01 1.0E+00 7.4E+00 2.4E-03 1.0E-01 8.4E+00 8.4E+00 8.4E+00 1.0E+03 2.5E+03 2.5E+03 2.4E-03 Terr Habitat Anthracene [PAH]120-12-7 --1.8E+04 --2.3E+05 --5.0E+04 3.1E+00 4.0E+01 1.9E+00 1.9E+00 4.1E+00 5.0E+02 1.0E+03 1.0E+03 1.9E+00 Leaching Antimony 7440-36-0 --1.1E+01 --1.6E+02 --5.0E+01 2.5E+01 5.0E+01 ------------1.1E+01 NC-Hazard Arsenic 7440-38-2 6.7E-02 2.6E-01 3.1E-01 3.6E+00 2.0E+00 9.8E-01 2.5E+01 5.0E+01 ------------6.7E-02 Canc-Risk Barium 7440-39-3 --1.5E+04 --2.2E+05 --3.0E+03 3.9E+02 6.7E+02 ------------3.9E+02 Terr Habitat Benzene 71-43-2 3.3E-01 1.1E+01 1.4E+00 4.7E+01 3.3E+01 4.5E+01 6.0E+01 3.1E+02 2.5E-02 2.5E-02 1.9E+03 5.0E+02 1.0E+03 1.0E+03 2.5E-02 Leaching Benzo[a]anthracene [PAH]56-55-3 1.1E+00 --2.0E+01 --1.1E+02 --6.3E-01 1.3E+00 1.0E+01 1.0E+01 1.0E+01 5.0E+02 1.0E+03 1.0E+03 6.3E-01 Terr Habitat Benzo[a]pyrene [PAH]50-32-8 1.1E-01 1.8E+01 2.1E+00 2.2E+02 1.1E+01 1.0E+01 2.5E+01 9.0E+01 5.7E+00 5.7E+00 5.7E+00 5.0E+02 1.0E+03 1.0E+03 1.1E-01 Canc-Risk Benzo[b]fluoranthene [PAH]205-99-2 1.1E+00 --2.1E+01 --1.1E+02 ------5.4E+00 7.5E+01 5.4E+00 5.0E+02 1.0E+03 1.0E+03 1.1E+00 Canc-Risk Benzo[g,h,i]perylene [PAH]191-24-2 ------------8.3E+00 1.7E+01 2.7E+01 2.7E+01 2.5E+00 5.0E+02 1.0E+03 1.0E+03 2.5E+00 Gross Contam Benzo[k]fluoranthene [PAH]207-08-9 1.1E+01 --2.1E+02 --9.1E+02 --9.5E+00 1.9E+01 4.8E+00 3.9E+01 2.8E+00 5.0E+02 1.0E+03 1.0E+03 2.8E+00 Gross Contam Beryllium 7440-41-7 1.6E+03 1.6E+01 6.9E+03 2.3E+02 1.8E+02 2.7E+01 5.0E+00 1.0E+01 ------------5.0E+00 Terr Habitat 1,1-Biphenyl 92-52-4 6.8E+01 4.7E+01 2.9E+02 2.0E+02 1.7E+03 1.8E+02 ----4.2E-01 4.2E+00 2.3E+02 5.0E+02 1.0E+03 1.0E+03 4.2E-01 Leaching Bis(2-chloroethyl) ether 111-44-4 1.0E-01 --4.7E-01 --6.4E+00 ------3.4E-05 3.1E-02 5.0E+03 5.0E+02 1.0E+03 1.0E+03 3.4E-05 Leaching Bis(2-chloro-1-methylethyl) ether 108-60-1 5.0E+00 3.1E+03 2.3E+01 4.7E+04 2.7E+02 1.4E+04 ----5.1E-03 8.7E-01 1.0E+03 5.0E+02 1.0E+03 1.0E+03 5.1E-03 Leaching Bis(2-ethylhexyl) phthalate 117-81-7 3.9E+01 1.3E+03 1.6E+02 1.6E+04 9.5E+02 3.8E+03 8.0E-01 3.5E+01 1.9E+02 6.4E+02 1.9E+02 5.0E+02 1.0E+03 1.0E+03 8.0E-01 Terr Habitat Boron 7440-42-8 --1.6E+04 --2.3E+05 --4.5E+04 1.2E+02 1.2E+02 ------------1.2E+02 Terr Habitat Bromodichloromethane 75-27-4 2.9E-01 1.6E+03 1.3E+00 2.3E+04 2.8E+01 7.1E+03 ----1.6E-02 1.6E-02 9.3E+02 1.0E+03 2.5E+03 2.5E+03 1.6E-02 Leaching Bromoform (Tribromomethane)75-25-2 1.8E+01 1.6E+03 8.0E+01 2.3E+04 1.2E+03 7.1E+03 ----6.9E-01 1.0E+00 9.2E+02 5.0E+02 1.0E+03 1.0E+03 6.9E-01 Leaching Bromomethane 74-83-9 --6.9E+00 --3.0E+01 --2.9E+01 ----3.6E-01 8.3E-01 3.5E+03 5.0E+02 1.0E+03 1.0E+03 3.6E-01 Leaching Cadmium (soil)7440-43-9 9.1E+02 7.8E+01 4.0E+03 1.1E+03 1.1E+02 5.1E+01 1.9E+00 1.9E+00 ------------1.9E+00 Terr Habitat Cadmium (water)7440-43-9 -------------------------------- Carbon tetrachloride 56-23-5 6.2E-01 5.3E+01 2.7E+00 2.5E+02 5.3E+01 2.2E+02 7.3E+00 1.5E+01 7.6E-02 7.6E-02 4.5E+02 5.0E+02 1.0E+03 1.0E+03 7.6E-02 Leaching Chlordane 12789-03-6 4.8E-01 3.6E+01 2.2E+00 5.0E+02 1.4E+01 1.3E+02 8.5E-03 8.5E-03 2.3E+01 2.3E+01 2.3E+01 1.0E+03 2.5E+03 2.5E+03 8.5E-03 Terr Habitat p-Chloroaniline 106-47-8 3.5E+00 3.1E+02 1.6E+01 4.7E+03 1.2E+02 1.4E+03 2.5E+01 5.0E+01 6.7E-03 9.1E-02 3.0E+03 5.0E+02 1.0E+03 1.0E+03 6.7E-03 Leaching Chlorobenzene 108-90-7 --2.7E+02 --1.3E+03 --1.2E+03 7.5E+00 1.5E+01 1.4E+00 1.4E+00 7.5E+02 5.0E+02 1.0E+03 1.0E+03 1.4E+00 Leaching Chloroethane 75-00-3 --1.4E+04 --5.9E+04 --5.9E+04 ----1.2E+00 1.2E+01 2.1E+03 5.0E+02 1.0E+03 1.0E+03 1.2E+00 Leaching Chloroform 67-66-3 3.2E-01 2.0E+02 1.4E+00 1.0E+03 3.4E+01 8.6E+02 4.3E+01 8.5E+01 2.3E-02 2.3E-02 2.6E+03 5.0E+02 1.0E+03 1.0E+03 2.3E-02 Leaching Chloromethane 74-87-3 --1.1E+02 --4.7E+02 --4.7E+02 ----1.1E+01 1.5E+01 1.3E+03 1.0E+02 5.0E+02 5.0E+02 1.1E+01 Leaching 2-Chlorophenol 95-57-8 --3.9E+02 --5.8E+03 --1.8E+03 2.0E+00 3.9E+00 1.2E-02 1.2E-01 2.7E+04 1.0E+02 5.0E+02 5.0E+02 1.2E-02 Leaching Chromium (total)7440-47-3 ------------1.6E+02 1.6E+02 ------------1.6E+02 Terr Habitat Chromium III 16065-83-1 --1.2E+05 --1.8E+06 --5.3E+05 ----------------1.2E+05 NC-Hazard Chromium VI 18540-29-9 3.0E-01 2.3E+02 6.2E+00 3.5E+03 2.8E+00 4.0E+02 1.0E+01 1.0E+01 ------------3.0E-01 Canc-Risk Chrysene [PAH]218-01-9 1.1E+02 --2.1E+03 --9.1E+03 --8.8E+00 1.8E+01 2.2E+00 1.0E+01 2.2E+00 5.0E+02 1.0E+03 1.0E+03 2.2E+00 Leaching Cobalt 7440-48-4 4.2E+02 2.3E+01 1.9E+03 3.5E+02 4.9E+01 2.8E+01 5.0E+01 1.0E+02 ------------2.3E+01 NC-Hazard Copper 7440-50-8 --3.1E+03 --4.7E+04 --1.4E+04 1.8E+02 3.0E+02 ------------1.8E+02 Terr Habitat Cyanide 57-12-5 --5.5E+00 --2.5E+01 --2.2E+01 1.1E-01 1.1E-01 3.4E-03 3.4E-03 1.9E+04 1.0E+02 5.0E+02 5.0E+02 3.4E-03 Leaching Dibenz[a,h]anthracene [PAH]53-70-3 1.1E-01 --2.1E+00 --1.1E+01 ------2.9E+01 3.9E+02 2.9E+01 5.0E+02 1.0E+03 1.0E+03 1.1E-01 Canc-Risk Dibromochloromethane 124-48-1 8.3E+00 1.6E+03 3.9E+01 2.3E+04 2.9E+02 7.1E+03 ----3.5E-01 1.1E+01 8.0E+02 1.0E+02 5.0E+02 5.0E+02 3.5E-01 Leaching 1,2-dibromo-3-chloropropane 96-12-8 4.4E-03 4.8E+00 5.9E-02 2.6E+01 1.1E+00 2.0E+01 ----5.9E-04 5.9E-04 9.9E+02 5.0E+02 1.0E+03 1.0E+03 5.9E-04 Leaching 1,2-Dibromoethane 106-93-4 3.6E-02 7.2E+00 1.6E-01 3.0E+01 3.3E+00 3.0E+01 ----5.3E-04 1.9E-03 1.3E+03 5.0E+02 1.0E+03 1.0E+03 5.3E-04 Leaching 1,2-Dichlorobenzene 95-50-1 --1.8E+03 --9.4E+03 --7.8E+03 4.3E+00 8.5E+00 1.0E+00 1.0E+00 3.8E+02 1.0E+03 2.5E+03 2.5E+03 1.0E+00 Leaching 1,3-Dichlorobenzene 541-73-1 ------------6.0E+00 1.2E+01 7.4E+00 7.4E+00 6.1E+02 1.0E+02 5.0E+02 5.0E+02 6.0E+00 Terr Habitat 1,4-Dichlorobenzene 106-46-7 2.6E+00 3.4E+03 1.2E+01 2.6E+04 2.8E+02 1.5E+04 4.5E+00 9.0E+00 2.0E-01 2.0E-01 1.9E+02 5.0E+02 1.0E+03 1.0E+03 2.0E-01 Leaching 2019 (Rev. 2) Chemicals CAS No. Odor Nuisance Levels (Table S-5) Summary of Soil ESLs (mg/kg) Leaching to Groundwater Levels (Table S-3) Soil Tier 1 ESL Basis Gross Contamin- ation Levels (Table S-4) Residential: Shallow Soil Exposure Commerical/ Industrial: Shallow Soil Exposure Construction Worker: Any Land Use/ Any Depth Soil Exposure Terrestrial Habitat Levels (Table S-2) Direct Exposure Human Health Risk Levels (Table S-1) Drinking Water Non- drinking Water Res: Shallow Soil Exposure Com/Ind: Shallow Soil Exposure Any Land Use: Any Soil Exposure (CW) 1 of 3 Soil Summary Significantly Vegetated Area Minimally Vegetated Area Cancer Risk Non- cancer Hazard Cancer Risk Non- cancer Hazard Cancer Risk Non- cancer Hazard Examples: Parkland or single family homes with yards Examples: High density residential or commercial/ industrial areas 2019 (Rev. 2) Chemicals CAS No. Odor Nuisance Levels (Table S-5) Summary of Soil ESLs (mg/kg) Leaching to Groundwater Levels (Table S-3) Soil Tier 1 ESL Basis Gross Contamin- ation Levels (Table S-4) Residential: Shallow Soil Exposure Commerical/ Industrial: Shallow Soil Exposure Construction Worker: Any Land Use/ Any Depth Soil Exposure Terrestrial Habitat Levels (Table S-2) Direct Exposure Human Health Risk Levels (Table S-1) Drinking Water Non- drinking Water Res: Shallow Soil Exposure Com/Ind: Shallow Soil Exposure Any Land Use: Any Soil Exposure (CW) 3,3-Dichlorobenzidine 91-94-1 5.8E-01 --2.7E+00 --2.0E+01 ------2.5E-02 1.3E+02 6.0E+01 5.0E+02 1.0E+03 1.0E+03 2.5E-02 Leaching DDD 72-54-8 2.7E+00 --1.2E+01 --8.1E+01 --8.5E+00 1.7E+01 6.5E+01 6.5E+01 6.5E+01 5.0E+02 1.0E+03 1.0E+03 2.7E+00 Canc-Risk DDE 72-55-9 1.8E+00 --8.3E+00 --5.7E+01 --3.3E-01 6.5E-01 2.9E+01 2.9E+01 2.9E+01 5.0E+02 1.0E+03 1.0E+03 3.3E-01 Terr Habitat DDT 50-29-3 1.9E+00 3.7E+01 8.5E+00 5.2E+02 5.7E+01 1.4E+02 1.1E-03 7.8E+00 5.6E+00 5.6E+00 5.6E+00 5.0E+02 1.0E+03 1.0E+03 1.1E-03 Terr Habitat 1,1-Dichloroethane 75-34-3 3.6E+00 1.6E+04 1.6E+01 2.3E+05 3.7E+02 7.1E+04 1.1E+01 2.1E+01 2.0E-01 3.1E-01 1.7E+03 5.0E+02 1.0E+03 1.0E+03 2.0E-01 Leaching 1,2-Dichloroethane 107-06-2 4.7E-01 3.2E+01 2.1E+00 1.4E+02 4.5E+01 1.3E+02 2.9E+01 2.9E+01 7.0E-03 3.1E-02 3.0E+03 1.0E+02 5.0E+02 5.0E+02 7.0E-03 Leaching 1,1-Dichloroethene 75-35-4 --8.3E+01 --3.5E+02 --3.5E+02 4.3E+01 1.3E+02 5.4E-01 4.2E+00 1.2E+03 5.0E+02 1.0E+03 1.0E+03 5.4E-01 Leaching cis-1,2-Dichloroethene 156-59-2 --1.9E+01 --8.5E+01 --7.8E+01 8.4E+01 9.4E+02 1.9E-01 1.6E+00 2.4E+03 1.0E+02 5.0E+02 5.0E+02 1.9E-01 Leaching trans-1,2-Dichloroethene 156-60-5 --1.3E+02 --6.0E+02 --5.7E+02 8.4E+01 9.4E+02 6.5E-01 1.4E+01 1.9E+03 5.0E+02 1.0E+03 1.0E+03 6.5E-01 Leaching 2,4-Dichlorophenol 120-83-2 --2.3E+02 --3.5E+03 --1.1E+03 2.1E+00 --7.5E-03 7.5E-02 5.6E+03 5.0E+02 1.0E+03 1.0E+03 7.5E-03 Leaching 1,2-Dichloropropane 78-87-5 1.0E+00 1.6E+01 4.4E+00 6.6E+01 9.9E+01 6.6E+01 3.1E+01 6.3E+01 6.5E-02 6.5E-02 1.4E+03 1.0E+02 5.0E+02 5.0E+02 6.5E-02 Leaching 1,3-Dichloropropene 542-75-6 5.7E-01 7.2E+01 2.5E+00 3.1E+02 5.3E+01 3.0E+02 3.1E+01 6.3E+01 1.7E-02 4.0E-02 1.6E+03 5.0E+02 1.0E+03 1.0E+03 1.7E-02 Leaching Dieldrin 60-57-1 3.7E-02 3.5E+00 1.6E-01 4.8E+01 1.1E+00 1.2E+01 9.6E-04 1.1E-01 4.6E-04 6.3E-03 2.4E+01 5.0E+02 1.0E+03 1.0E+03 4.6E-04 Leaching Diethyl phthalate 84-66-2 --5.1E+04 --6.6E+05 --1.5E+05 1.3E+01 2.7E+01 2.5E-02 2.5E-02 7.7E+02 5.0E+02 1.0E+03 1.0E+03 2.5E-02 Leaching Dimethyl phthalate 131-11-3 ------------2.1E+01 4.2E+01 3.5E-02 3.5E-02 4.7E+03 5.0E+02 1.0E+03 1.0E+03 3.5E-02 Leaching 2,4-Dimethylphenol 105-67-9 --1.6E+03 --2.3E+04 --7.1E+03 ----8.1E+00 8.9E+00 2.4E+04 1.0E+02 5.0E+02 5.0E+02 8.1E+00 Leaching 2,4-Dinitrophenol 51-28-5 --1.6E+02 --2.3E+03 --7.1E+02 ----3.0E+00 5.7E+00 8.0E+03 5.0E+02 1.0E+03 1.0E+03 3.0E+00 Leaching 2,4-Dinitrotoluene 121-14-2 2.2E+00 1.6E+02 1.1E+01 2.3E+03 7.9E+01 7.1E+02 ----2.3E-02 1.1E+01 7.2E+02 5.0E+02 1.0E+03 1.0E+03 2.3E-02 Leaching 1,4-Dioxane 123-91-1 4.7E+00 8.1E+02 2.2E+01 4.5E+03 2.1E+02 3.4E+03 1.8E+00 1.8E+00 1.7E-04 8.4E-01 1.2E+05 5.0E+02 1.0E+03 1.0E+03 1.7E-04 Leaching Dioxin (2,3,7,8-TCDD)1746-01-6 4.8E-06 5.1E-05 2.2E-05 7.2E-04 1.5E-04 2.0E-04 1.3E-05 9.9E-05 3.0E-01 3.0E-01 3.0E-01 5.0E+02 1.0E+03 1.0E+03 4.8E-06 Canc-Risk Endosulfan 115-29-7 --4.2E+02 --5.8E+03 --1.5E+03 2.3E-02 3.8E-01 9.8E-03 9.8E-03 1.3E+01 5.0E+02 1.0E+03 1.0E+03 9.8E-03 Leaching Endrin 72-20-8 --2.1E+01 --2.9E+02 --7.4E+01 1.1E-03 1.1E-03 7.6E-03 7.6E-03 3.0E+01 5.0E+02 1.0E+03 1.0E+03 1.1E-03 Terr Habitat Ethylbenzene 100-41-4 5.9E+00 3.4E+03 2.6E+01 2.1E+04 5.4E+02 1.5E+04 9.0E+01 4.3E+02 4.3E-01 4.3E-01 4.9E+02 5.0E+02 1.0E+03 1.0E+03 4.3E-01 Leaching Fluoranthene [PAH]206-44-0 --2.4E+03 --3.0E+04 --6.7E+03 6.9E-01 1.2E+05 8.6E+01 8.6E+01 8.6E+01 5.0E+02 1.0E+03 1.0E+03 6.9E-01 Terr Habitat Fluorene [PAH]86-73-7 --2.4E+03 --3.0E+04 --6.7E+03 ----6.0E+00 6.0E+00 9.4E+01 5.0E+02 1.0E+03 1.0E+03 6.0E+00 Leaching Heptachlor 76-44-8 1.2E-01 3.5E+01 5.3E-01 4.8E+02 3.7E+00 1.2E+02 2.5E-01 5.0E-01 4.4E+01 4.4E+01 4.4E+01 1.0E+03 2.5E+03 2.5E+03 1.2E-01 Canc-Risk Heptachlor epoxide 1024-57-3 6.2E-02 9.1E-01 2.8E-01 1.3E+01 1.9E+00 3.2E+00 ----1.8E-04 6.0E-03 1.2E+01 1.0E+03 2.5E+03 2.5E+03 1.8E-04 Leaching Hexachlorobenzene 118-74-1 1.8E-01 5.6E+01 7.8E-01 7.7E+02 7.7E+00 2.0E+02 1.3E+02 2.5E+02 8.0E-04 8.2E-02 2.3E-01 5.0E+02 1.0E+03 1.0E+03 8.0E-04 Leaching Hexachlorobutadiene 87-68-3 1.2E+00 7.8E+01 5.3E+00 1.2E+03 1.0E+02 3.5E+02 ----2.8E-02 6.2E-02 1.7E+01 5.0E+02 1.0E+03 1.0E+03 2.8E-02 Leaching g-Hexachlorocyclohexane (Lindane)58-89-9 5.5E-01 2.1E+01 2.5E+00 2.9E+02 1.6E+01 7.4E+01 7.4E+00 1.5E+01 7.4E-03 7.4E-03 1.2E+02 5.0E+02 1.0E+03 1.0E+03 7.4E-03 Leaching Hexachloroethane 67-72-1 1.8E+00 3.8E+01 7.8E+00 3.7E+02 1.3E+02 1.2E+02 ----1.9E-02 9.2E-02 6.7E+01 5.0E+02 1.0E+03 1.0E+03 1.9E-02 Leaching Indeno[1,2,3-c,d]pyrene [PAH]193-39-5 1.1E+00 --2.1E+01 --1.1E+02 --4.8E-01 9.5E-01 1.6E+01 3.2E+01 2.3E+00 5.0E+02 1.0E+03 1.0E+03 4.8E-01 Terr Habitat Lead 7439-92-1 8.2E+01 8.0E+01 3.8E+02 3.2E+02 2.7E+03 1.6E+02 3.2E+01 3.2E+01 ------------3.2E+01 Terr Habitat Mercury (elemental)7439-97-6 --1.3E+01 --1.9E+02 --4.4E+01 1.5E+01 2.0E+01 ------5.0E+02 1.0E+03 1.0E+03 1.3E+01 NC-Hazard Methoxychlor 72-43-5 --3.5E+02 --4.8E+03 --1.2E+03 1.3E-01 4.1E+03 1.3E-02 1.3E-02 1.6E+01 5.0E+02 1.0E+03 1.0E+03 1.3E-02 Leaching Methylene chloride 75-09-2 1.9E+00 3.1E+02 2.5E+01 2.5E+03 4.9E+02 1.4E+03 9.8E-01 2.0E+00 1.2E-01 1.9E-01 3.3E+03 5.0E+02 1.0E+03 1.0E+03 1.2E-01 Leaching Methyl ethyl ketone 78-93-3 --2.7E+04 --2.0E+05 --1.2E+05 4.4E+01 8.8E+01 6.1E+00 1.5E+01 2.8E+04 5.0E+02 1.0E+03 1.0E+03 6.1E+00 Leaching Methyl isobutyl ketone 108-10-1 --3.4E+04 --1.4E+05 --1.4E+05 ----3.6E-01 5.1E-01 3.4E+03 1.0E+02 5.0E+02 5.0E+02 3.6E-01 Leaching Methyl mercury 22967-92-6 --6.3E+00 --8.2E+01 --1.9E+01 3.4E-02 3.4E-02 ------1.0E+02 5.0E+02 5.0E+02 3.4E-02 Terr Habitat 2-Methylnaphthalene 91-57-6 --2.4E+02 --3.0E+03 --6.7E+02 ----8.8E-01 8.8E-01 3.8E+02 5.0E+02 1.0E+03 1.0E+03 8.8E-01 Leaching Methyl tertiary butyl ether (MTBE)1634-04-4 4.7E+01 1.6E+04 2.1E+02 6.6E+04 4.1E+03 6.5E+04 3.1E+01 6.3E+01 2.8E-02 2.5E+00 9.0E+03 1.0E+02 5.0E+02 5.0E+02 2.8E-02 Leaching Molybdenum 7439-98-7 --3.9E+02 --5.8E+03 --1.8E+03 6.9E+00 4.0E+01 ------------6.9E+00 Terr Habitat Naphthalene [PAH]91-20-3 3.8E+00 1.3E+02 1.7E+01 5.8E+02 4.0E+02 5.0E+02 7.5E-01 2.8E+01 4.2E-02 1.2E+00 2.8E+02 5.0E+02 1.0E+03 1.0E+03 4.2E-02 Leaching Nickel 7440-02-0 1.5E+04 8.2E+02 6.4E+04 1.1E+04 1.7E+03 8.6E+01 1.3E+02 3.4E+02 ------------8.6E+01 NC-Hazard Pentachlorophenol 87-86-5 1.0E+00 2.5E+02 4.0E+00 2.8E+03 2.0E+01 5.6E+02 1.3E-02 3.9E+01 9.8E-02 7.7E-01 5.1E+01 5.0E+02 1.0E+03 1.0E+03 1.3E-02 Terr Habitat Perchlorate 7790-98-9 --5.5E+01 --8.2E+02 --2.5E+02 ----------------5.5E+01 NC-Hazard Petroleum - Gasoline ----4.3E+02 --2.0E+03 --1.8E+03 1.2E+02 1.2E+02 1.1E+03 4.9E+03 1.0E+03 1.0E+02 5.0E+02 5.0E+02 1.0E+02 Odor/Nuis 2 of 3 Soil Summary Significantly Vegetated Area Minimally Vegetated Area Cancer Risk Non- cancer Hazard Cancer Risk Non- cancer Hazard Cancer Risk Non- cancer Hazard Examples: Parkland or single family homes with yards Examples: High density residential or commercial/ industrial areas 2019 (Rev. 2) Chemicals CAS No. Odor Nuisance Levels (Table S-5) Summary of Soil ESLs (mg/kg) Leaching to Groundwater Levels (Table S-3) Soil Tier 1 ESL Basis Gross Contamin- ation Levels (Table S-4) Residential: Shallow Soil Exposure Commerical/ Industrial: Shallow Soil Exposure Construction Worker: Any Land Use/ Any Depth Soil Exposure Terrestrial Habitat Levels (Table S-2) Direct Exposure Human Health Risk Levels (Table S-1) Drinking Water Non- drinking Water Res: Shallow Soil Exposure Com/Ind: Shallow Soil Exposure Any Land Use: Any Soil Exposure (CW) Petroleum - Stoddard Solvent ----2.6E+02 --1.4E+03 --1.1E+03 2.6E+02 2.6E+02 1.3E+03 8.0E+03 2.3E+03 1.0E+02 5.0E+02 5.0E+02 1.0E+02 Odor/Nuis Petroleum - Jet Fuel ----2.7E+02 --1.4E+03 --1.1E+03 2.6E+02 2.6E+02 1.3E+03 8.0E+03 2.3E+03 1.0E+02 5.0E+02 5.0E+02 1.0E+02 Odor/Nuis Petroleum - Diesel ----2.6E+02 --1.2E+03 --1.1E+03 2.6E+02 2.6E+02 1.1E+03 7.3E+03 2.3E+03 5.0E+02 1.0E+03 1.0E+03 2.6E+02 NC-Hazard Petroleum - HOPs ---------------------------------- Petroleum - Motor Oil ----1.2E+04 --1.8E+05 --5.4E+04 1.6E+03 1.6E+03 ----5.1E+03 ------1.6E+03 Terr Habitat Phenanthrene [PAH]85-01-8 ------------7.8E+00 1.6E+01 1.1E+01 1.1E+01 6.9E+01 5.0E+02 1.0E+03 1.0E+03 7.8E+00 Terr Habitat Phenol 108-95-2 --2.3E+04 --3.5E+05 --9.8E+04 9.4E+00 9.4E+00 1.6E-01 1.8E+01 1.0E+05 5.0E+02 1.0E+03 1.0E+03 1.6E-01 Leaching Polychlorinated biphenyls (PCBs)1336-36-3 2.3E-01 --9.4E-01 --5.5E+00 --1.1E+00 1.1E+00 3.3E+02 3.3E+02 3.3E+02 5.0E+02 1.0E+03 1.0E+03 2.3E-01 Canc-Risk Pyrene [PAH]129-00-0 --1.8E+03 --2.3E+04 --5.0E+03 4.7E+03 9.9E+04 4.5E+01 4.5E+01 4.5E+01 5.0E+02 1.0E+03 1.0E+03 4.5E+01 Leaching Selenium 7782-49-2 --3.9E+02 --5.8E+03 --1.7E+03 2.4E+00 5.5E+00 ------------2.4E+00 Terr Habitat Silver 7440-22-4 --3.9E+02 --5.8E+03 --1.8E+03 2.5E+01 5.0E+01 ------------2.5E+01 Terr Habitat Styrene 100-42-5 --5.7E+03 --3.3E+04 --2.5E+04 2.2E+01 4.3E+01 9.2E-01 1.0E+01 8.7E+02 5.0E+02 1.0E+03 1.0E+03 9.2E-01 Leaching tert-Butyl alcohol 75-65-0 ----------------7.5E-02 1.1E+02 3.2E+05 1.0E+02 5.0E+02 5.0E+02 7.5E-02 Leaching 1,1,1,2-Tetrachloroethane 630-20-6 2.0E+00 2.3E+03 8.9E+00 3.5E+04 1.9E+02 1.1E+04 ----1.7E-02 1.1E-01 7.0E+02 1.0E+02 5.0E+02 5.0E+02 1.7E-02 Leaching 1,1,2,2-Tetrachloroethane 79-34-5 6.1E-01 1.6E+03 2.7E+00 2.3E+04 4.9E+01 7.1E+03 ----1.8E-02 5.8E-02 1.9E+03 5.0E+02 1.0E+03 1.0E+03 1.8E-02 Leaching Tetrachloroethene 127-18-4 5.9E-01 8.2E+01 2.7E+00 3.9E+02 3.3E+01 3.5E+02 4.5E+00 4.3E+01 8.0E-02 8.0E-02 1.7E+02 5.0E+02 1.0E+03 1.0E+03 8.0E-02 Leaching Thallium 7440-28-0 --7.8E-01 --1.2E+01 --3.5E+00 1.8E+00 4.5E+00 ------------7.8E-01 NC-Hazard Toluene 108-88-3 --1.1E+03 --5.3E+03 --4.7E+03 1.4E+02 6.6E+02 3.2E+00 1.0E+01 8.1E+02 5.0E+02 1.0E+03 1.0E+03 3.2E+00 Leaching Toxaphene 8001-35-2 5.1E-01 --2.2E+00 --1.4E+01 ------2.5E+02 2.5E+02 2.5E+02 5.0E+02 1.0E+03 1.0E+03 5.1E-01 Canc-Risk 1,2,4-Trichlorobenzene 120-82-1 2.4E+01 5.9E+01 1.1E+02 2.6E+02 8.5E+02 2.4E+02 1.6E+01 3.0E+01 1.2E+00 6.0E+00 4.2E+02 5.0E+02 1.0E+03 1.0E+03 1.2E+00 Leaching 1,1,1-Trichloroethane 71-55-6 --1.7E+03 --7.3E+03 --7.2E+03 2.2E+01 4.4E+01 7.0E+00 7.0E+00 6.5E+02 5.0E+02 1.0E+03 1.0E+03 7.0E+00 Leaching 1,1,2-Trichloroethane 79-00-5 1.2E+00 1.5E+00 5.1E+00 6.4E+00 1.1E+02 6.3E+00 1.0E+02 2.0E+02 7.6E-02 7.9E-02 2.2E+03 1.0E+02 5.0E+02 5.0E+02 7.6E-02 Leaching Trichloroethene 79-01-6 9.5E-01 4.2E+00 6.1E+00 1.9E+01 1.3E+02 1.8E+01 8.1E+00 2.5E+02 8.5E-02 8.5E-02 7.0E+02 5.0E+02 1.0E+03 1.0E+03 8.5E-02 Leaching 2,4,5-Trichlorophenol 95-95-4 --7.8E+03 --1.2E+05 --3.5E+04 5.5E+00 1.0E+01 2.9E+00 2.9E+00 1.2E+04 5.0E+02 1.0E+03 1.0E+03 2.9E+00 Leaching 2,4,6-Trichlorophenol 88-06-2 9.9E+00 7.8E+01 4.7E+01 1.2E+03 3.5E+02 3.5E+02 5.5E+00 1.0E+01 4.0E-02 3.1E+01 1.9E+03 1.0E+02 5.0E+02 5.0E+02 4.0E-02 Leaching 1,2,3-Trichloropropane 96-18-4 2.3E-02 4.9E+00 1.1E-01 2.1E+01 8.3E-01 2.0E+01 ----1.1E-04 1.3E-04 1.4E+03 1.0E+02 5.0E+02 5.0E+02 1.1E-04 Leaching Vanadium 7440-62-2 --3.9E+02 --5.8E+03 --4.7E+02 1.8E+01 1.8E+01 ------------1.8E+01 Terr Habitat Vinyl chloride 75-01-4 8.3E-03 7.0E+01 1.5E-01 3.8E+02 3.4E+00 3.0E+02 4.3E+00 8.5E+00 1.5E-03 1.5E-03 3.9E+03 5.0E+02 1.0E+03 1.0E+03 1.5E-03 Leaching Xylenes 1330-20-7 --5.8E+02 --2.5E+03 --2.4E+03 5.5E+01 2.1E+02 2.1E+00 1.0E+01 2.7E+02 5.0E+02 1.0E+03 1.0E+03 2.1E+00 Leaching Zinc 7440-66-6 --2.3E+04 --3.5E+05 --1.1E+05 3.4E+02 3.4E+02 ------------3.4E+02 Terr Habitat Notes: Abbreviations: Canc - Cancer Com/Ind - Commercial/Industrial Contam - Contamination CW - Construction Worker DDD - Dichlorodiphenyldichloroethane DDE - Dichlorodiphenyldichloroethene DDT - Dichlorodiphenyltrichloroethane Exp - Exposure HOPs - Hydrocarbon Oxidation Products (biodegradation metabolites and photo-oxidation products of petroleum hydrocarbons). See User's Guide Chapter 4 for further information. NC - Noncancer Odor/Nuis - Odor Nuisance PAH - Polycyclic aromatic hydrocarbon Res - Residential TCDD - Tetrachlorodibenzodioxin Terr - Terrestrial - Petroleum - HOPs: Soil ESLs have not been developed at this time. - Cadmium (Water): Groundwater levels do not apply to cadmium in soil so no soil level are listed. 3 of 3 Soil Summary Project Number 2162RV43 April 5, 2024 E2C Remediation Appendix F APPENDIX F PROVEN TECHNOLOGIES AND REMEDIES GUIDANCE – REMEDIATION OF METALS IN SOIL, DTSC, 2007 - Arsenic Strategies, Determination of Arsenic Remediation, Development of Arsenic Cleanup Goals for Proposed and Existing Schools Sites. March. www.dtsc.ca.gov/Schools/upload/Arsenic-Cleanup-Strategies-March-2007.pdf PROVEN TECHNOLOGIES AND REMEDIES GUIDANCE – REMEDIATION OF METALS IN SOIL Background Estimates of Metals in Soil August 2008 APPENDIX B STRATEGIES FOR ESTABLISHING AND USING BACKGROUND ESTIMATES OF METALS IN SOIL PROVEN TECHNOLOGIES AND REMEDIES GUIDANCE – REMEDIATION OF METALS IN SOIL Background Estimates of Metals in Soil B-1 TABLE OF CONTENTS Page PREFACE ....................................................................................................................B-3 1.0 INTRODUCTION...............................................................................................B-3 2.0 RATIONALE FOR SITE-SPECIFIC BACKGROUND ESTIMATES...................B-3 3.0 ESTIMATING BACKGROUND CONCENTRATIONS .......................................B-5 3.1 Defining the Target Population ...............................................................B-5 3.2 Developing an Appropriate Background Data Set ..................................B-6 3.2.1 Using Existing Background Data..................................................B-6 3.2.2 Generating New Background Data...............................................B-7 3.2.3 Pooling Background Data Sets ....................................................B-7 3.3 Exploratory Data Analysis.......................................................................B-8 3.3.1 Descriptive Statistics....................................................................B-8 3.3.2 Graphical Representations...........................................................B-8 3.3.3 Tests of Data Set Distribution ......................................................B-9 3.3.4 Outlier Identification and Removal .............................................B-11 3.3.5 Treatment of Censored Data......................................................B-12 3.4 Documenting Background Estimates....................................................B-13 4.0 IDENTIFYING METALS AS CHEMICALS OF POTENTIAL CONCERN.........B-14 5.0 DEVELOPING BACKGROUND-BASED CLEANUP GOALS..........................B-17 FOR METALS 6.0 REFERENCES................................................................................................B-17 LIST OF FIGURES Figure B-1 Example of Graphical Representations.................................................B-10 LIST OF TABLES Table 1 Selected Quantitative Tests for Normality.............................................B-11 Table 2 Selected Outlier Screening Methods ....................................................B-12 Table 3 General Guidelines for Addressing Censored Data..............................B-13 Table 4 Common Data Set Comparison Methods .............................................B-16 ATTACHMENT A: Arsenic Strategies, Determination of Arsenic Remediation, Development of Arsenic Cleanup Goals for Proposed and Existing School Sites (DTSC, 2007) PROVEN TECHNOLOGIES AND REMEDIES GUIDANCE – REMEDIATION OF METALS IN SOIL Background Estimates of Metals in Soil B-2 ABBREVIATIONS AND ACRONYMS bgs below ground surface COPC chemical of potential concern DF detection frequency DQO data quality objective DTSC Department of Toxic Substances Control EDA exploratory data analysis EPA U.S. Environmental Protection Agency fs fourth spread IQR interquartile range Max maximum concentration in data set Min minimum concentration in data set n sample size Q1 first quartile Q3 third quartile St. Dev. standard deviation PROVEN TECHNOLOGIES AND REMEDIES GUIDANCE – REMEDIATION OF METALS IN SOIL Background Estimates of Metals in Soil B-3 PREFACE This appendix provides a suggested strategy for establishing and applying background concentrations of metals in soil, if determined to be necessary to support characterization and cleanup activities at a site. The strategy is presented as a progression of steps beginning with considerations for establishing background concentrations, use of the background concentrations to identify constituents of potential concern (COPCs), and use of the background concentrations to establish appropriate cleanup goals. Because it is not possible to provide a single approach that would apply to all sites, this appendix does not prescribe or mandate a particular methodology. The project team should develop and apply background concentrations using an approach that is appropriate for the conditions and objectives at a given site. This appendix is for guidance only, and is applicable on a case-by-case basis. 1.0 INTRODUCTION The amount of metals present in soils at a site may represent contributions from several sources, including metals present under pristine conditions (natural conditions without any impacts from humans), metals contributed by releases from site activities, and metals attributable of other off-site sources (e.g., lead historically emitted from car exhaust). Metals concentrations that represent only pristine or natural conditions often are referred to as “background” concentrations. Metals concentrations that represent a combination of natural levels and non-specific off-site sources are referred to as “ambient concentrations.” More detailed discussions of the terms “background” and “ambient” can be found in EPA (1989, 1995, 2002a). For the purposes of this appendix, the general term “background” will be used to refer to soil that has not been affected by site-related releases. An assessment of background concentrations of metals in soil may be needed during the site cleanup process to: • assist with characterizing the nature and extent of metals contamination that was caused by site activities, • evaluate whether a metal should be identified as a chemical of potential concern (COPC) for the risk assessment, and • assist with establishing an appropriate cleanup goal for the metal. 2.0 RATIONALE FOR SITE-SPECIFIC BACKGROUND ESTIMATES The ultimate objective of developing background estimates is to enable an “apples to apples” comparison that eliminates unnecessary variability in the comparison between PROVEN TECHNOLOGIES AND REMEDIES GUIDANCE – REMEDIATION OF METALS IN SOIL Background Estimates of Metals in Soil B-4 metals concentrations in potentially-impacted site soils and unimpacted soils. With this in mind, the ideal approach for establishing site-specific background concentrations is to identify unimpacted areas: • that are located as close as possible to the potentially impacted areas, and • with soil characteristics similar to soils that potentially have been impacted by site activities. (See Section 3.0 for further discussion.) The role of proximity in the background determination is based on the concept that soils located closer to the site will be more representative of site conditions than soils located further away. The range of metals concentrations measured in these nearby soils will more closely reflect the range of metals concentrations in site soils prior to site activities. Soils located further away may have been influenced by different natural processes or other anthropogenic activities than have occurred at the site. Several common constraints may necessitate deviation from the ideal approach to site- specific background estimates. At some sites, it may not be possible to find a nearby area that has not been affected by site activities. Extensive fill placement (e.g., such as in coastal areas) may require an alternate approach. Options to consider when it is not possible to use the ideal approach for a site-specific background determination include: • Using background estimates that have been developed for a nearby site; • Using regional estimates for background concentrations; • Pooling site data and using statistical techniques to identify a range of background concentrations; • For sites (and their surrounding areas) that are thought only to have potential impacts to surface soil (e.g., former agricultural sites), using soil data collected at depth (e.g., 5 feet bgs); and/or • Using geochemical methods to identify a range of background concentrations.1 Each of these options requires careful assessment as to whether the background estimates are appropriate for use at the subject site. A decision to use background estimates from nearby sites or from regional studies should be made after a thorough review of the data set (e.g., data quality, soil types) and statistical protocols used to derive these estimates. Use of regional estimates is arguably the least preferred option because it has the greatest potential to be least representative of site conditions (e.g., range of metals concentrations, unaccounted for variables). Experience has shown that the approach of using pooled site data requires a meticulous review of the data set to 1 Discussion of geochemical methods for identifying a range of background concentrations is beyond the scope of this appendix. NAVFAC (2002) provides further discussion of the use of geochemical methods in background screening. PROVEN TECHNOLOGIES AND REMEDIES GUIDANCE – REMEDIATION OF METALS IN SOIL Background Estimates of Metals in Soil B-5 identify (1) data with elevated detection limits, (2) disparities in data quality, (3) variability introduced by differences in represented soil types, (4) sample results that do not represent soil (e.g., concrete rubble), and (5) data reflecting obvious site impacts. Hence, the use of pooled data sets is not a simple undertaking and requires careful evaluation. Whether using the ideal approach or one of the alternative options to establish a site- specific background value, professional judgment must be used to ensure that the background estimates are reasonably conservative to define the nature and extent of contamination, identify metal COPCs, and derive background-based cleanup goals. At the same time, professional judgment is needed to ensure that the background estimates are not set too high or too low. Studies that have compiled typical ranges of metals concentrations in regional soil types can be a useful check that the site-specific background estimates are realistic. 3.0 ESTIMATING BACKGROUND CONCENTRATIONS Estimating background concentrations is a multi-step process that begins with careful definition of the target population. The next step is developing and screening the background data set. Finally, statistical techniques are used to characterize the background population. 3.1 DEFINING THE TARGET POPULATION In the most general terms, the target population for the background determination is soil with characteristics similar to those occurring on the cleanup site. Characteristics to consider when matching soils from unimpacted areas to site soils include: • Soil type − Lithology (e.g., sand, silt, clay) − Soil series − Soil horizons (e.g., zones where metals are accumulating/leaching, zones with differences in clay content) − Mineralogy − Geochemical conditions − Vegetation types, • Topography and landform (e.g., marshy areas versus upland areas), • Conceptual site model for fate and transport pathways of site contaminants, • Location and source of fill materials, and • Similar historical use (prior to site activities subject to cleanup effort). Depending on the variability in site conditions, one or more target populations may be identified, each requiring its own background estimates. For example, a site consisting of upland and marshy areas likely will require at least two target background populations, one for upland soil and one marshy soil. In contrast, if the site consists of PROVEN TECHNOLOGIES AND REMEDIES GUIDANCE – REMEDIATION OF METALS IN SOIL Background Estimates of Metals in Soil B-6 sandy, undisturbed soils, the background estimates may be based on a single target background population of sandy, undisturbed soils from nearby unimpacted areas. 3.2 DEVELOPING AN APPROPRIATE BACKGROUND DATA SET The background data set may consist of existing data collected in previous investigations, new data collected to address the data quality objectives (DQOs) for the background determination, and/or a combination of the new and existing data. All data used to support the background estimates must represent the target population. The background estimates should be based on a data set generated using probability- based sampling designs (e.g., systematic sampling, random sampling). The number of samples in the data set should be sufficient to support the statistical comparisons (EPA, 2002b) and the desired statistical power. In general, larger sample sizes will provide a better estimate of the background population characteristics and will provide greater power for the statistical tests. Data considered for inclusion in the background data set should be posted on a map to allow for identification of any clustered high or low concentrations. Clustered or spatially-related concentrations may suggest that data are not appropriate (e.g., potential contamination) or that the data are not from the same background population (e.g., different soil types). 3.2.1 Using Existing Background Data Previous site investigations may have generated background data for the site. The data set development process should include a review of the existing data to ensure that it is appropriate or adequate to support the background estimate. This review should address whether (EPA, 2002a): • The data represent the appropriate target population(s). (Note: This assessment may require review of the boring logs for each sample to ensure that the sample results represent the target population.) • There are a sufficient number of samples to support the intended statistical comparisons with the desired level of statistical power. • The sampling design (e.g., random versus judgmental) and spatial distribution (e.g., no correlated or clustered samples) will support the assumptions of the statistical tests. • The conceptual site model of contaminant distribution has remained unchanged since the background sampling (i.e., the background samples were not collected from an area that is now considered to be impacted). • The data are of known and acceptable quality. PROVEN TECHNOLOGIES AND REMEDIES GUIDANCE – REMEDIATION OF METALS IN SOIL Background Estimates of Metals in Soil B-7 3.2.2 Generating New Background Data Generating new background data should follow the DQO process and should have a sampling design that will support the intended statistical analyses. Suggested resources for the DQO process and sampling design include: • Guidance for Data Quality Assessment (EPA, 2006ab), • Guidance for Choosing a Sampling Design for Environmental Data Collection (EPA, 2002b). • Guidance for Comparing Background and Chemical Concentrations in Soil for CERCLA Sites (EPA, 2002a), and • Visual Sampling Plan (PNNL, 2007). Sampling and analysis activities should be conducted under an approved sampling and analysis plan and quality assurance project plan. An annotated outline that could be used for a workplan to evaluate background concentrations of metals is provided in Appendix A2. 3.2.3 Pooling Background Data Sets The data set used for the background estimates may include data generated by various investigation phases. In this instance, the data sources should be compared to ensure that: • the data were collected using similar sampling and analytical methods (EPA, 1992), • the data are of comparable quality, • the data have similar detection limits (this is particularly applicable when the pooled data set contains a significant number of censored values (also known as “non-detects”)), • one data set does not consistently show a higher or lower bias relative to the other data (For example, data generated using one analytical method may be biased higher than data generated using another analytical method.), • one portion of the reference area is not overrepresented, • the data sets have similar concentration ranges, measures of central tendency, and variability, and • the combined data set fulfills the DQOs for the background estimates (e.g., probability-based sampling strategy, samples distributed throughout the selected reference area). Graphical and statistical methods should be used to ensure that it is appropriate to pool the data sets. Graphical methods such as histograms, boxplots, and probability plots PROVEN TECHNOLOGIES AND REMEDIES GUIDANCE – REMEDIATION OF METALS IN SOIL Background Estimates of Metals in Soil B-8 (see Section 3.3.2) can be used to assess similarity between data sets. Statistical tests can be used to test differences between measures of central tendency and variability of the data sets (see Section 5; see Gilbert, 1987; EPA, 2006b; Helsel and Hirsch, 2002). 3.3 EXPLORATORY DATA ANALYSIS Exploratory data analysis (EDA) is an iterative process that uses several tools to evaluate data characteristics, make appropriate adjustments to the data set (e.g., adjust for censored values), and refine the data set (e.g., remove outliers). Prior to beginning EDA, all data should have been reviewed to ensure that it represents the target population (Section 3.1) and that it is appropriate to include the data in the analysis (Section 3.2). 3.3.1 Descriptive Statistics Descriptive statistics can be used as the starting point for EDA to provide an initial assessment of the data set characteristics as well as to evaluate the effects of any data set adjustments. These statistics include the number of samples, the detection frequency2, the maximum and minimum concentrations (range of the data), calculated measures of central tendency (mean, median), and calculated measures of dispersion (standard deviation, variance). The statistics may also include measures of relative standing (e.g., concentration corresponding to a certain percentile of the sample). Definitions for these parameters can be found in general statistical texts, EPA (2006b) and Helsel and Hirsch (2002). Descriptive statistics are updated during EDA, particularly after adjusting for censored values or removing outlier values. 3.3.2 Graphical Representations Graphical representations can be used as a starting point for EDA to obtain an initial assessment of the data set characteristics as well as to evaluate the effects of any data set adjustments. Various graphical methods are used to represent the background data set during EDA. Three particularly useful graphical methods are highlighted below and illustrated in Figure B-1. It is beyond the scope of this appendix to provide detailed discussions of possible graphical methods that may be useful during EDA. However, general statistical texts typically discuss the various graph styles. EPA (2006b) and Helsel and Hirsch (2002) also provide useful discussions of graphical methods. Histogram As shown on Figure B-1, histograms divide the concentration range into bins and count the number of samples that fall into each bin. Histograms are useful for assessing whether the data are symmetric around the mean or median, or whether the data are 2 Ratio of the number of detected values and the total number of values in the data set. The detection frequency can be expressed as the percentage of detected values by multiplying the ratio by a factor of 100. PROVEN TECHNOLOGIES AND REMEDIES GUIDANCE – REMEDIATION OF METALS IN SOIL Background Estimates of Metals in Soil B-9 skewed toward higher or lower concentrations. The distance between the mean and median provides an indication of the skewness in the data. Histograms may also be useful in recognizing whether multiple populations are present in the data set. Box-and-Whisker Plot Box-and-whisker plots are useful tools for summarizing and visualizing the range, mean, median, and skewness of the background data set (Figure B-1). The plots are constructed by ranking the data set from lowest to highest concentrations and presenting the data in four segments (quartiles), each representing 25 percent of the data set. The first quartile represents the lowest 25 percent of the concentrations and is represented by the lower tail. The fourth quartile represents the highest 25 percent of the concentrations and is shown as the upper tail. The data between the first and third quartiles (Q1 and Q3) is represented as the box that is bisected by the median value (midpoint of the ranked data). Outlier values typically are shown as individual data points located outside of the box-and-whisker diagram (asterisks on Figure B-1). Probability Plot Probability plots are useful for evaluating how well the data set distribution is modeled by an assumed distribution. Common types include a normal probability plot which compares the data to a normal distribution and a log-normal probability plot which compares the data to a log-normal distribution. Departures from linearity provide information about how the data distribution deviates from the assumed distribution. EPA (2006b) and Helsel and Hirsch (2002) provide detailed descriptions of how to construct a probability plot. 3.3.3 Tests of the Data Set Distribution An understanding of the distribution underlying a data set is needed to ensure selection of appropriate statistical tests3, such as for flagging outliers or for comparing background and site data sets. Multiple lines of evidence should be used to determine the data set distribution. Evaluation of the data set distribution should use a combination of graphical techniques (i.e., histograms, probability plots) and quantitative methods (see Table 1). Details regarding the distributional tests can be found in EPA (2006b) and Gilbert (1987). Distributional tests should be repeated after removing outliers and adjusting for censored values. If the revised tests indicate changes in the data set distribution or if the data set distribution is unclear, one option is to use both parametric and non- parametric techniques to conduct the statistical comparisons. The most conservative approach could be selected if there are any differences in the outcome of the statistical tests that would affect the cleanup decisions at the site 3 Parametric statistical methods should be used if a data set has a normal or log-normal distribution. Non- parametric statistical methods can be used if a data set has neither a normal or log-normal distribution. PROVEN TECHNOLOGIES AND REMEDIES GUIDANCE – REMEDIATION OF METALS IN SOIL Background Estimates of Metals in Soil B-10 Lead (mg/Kg)100 80 60 40 20 0 Boxplot Lead (mg/Kg)Frequency907560453015 80 70 60 50 40 30 20 10 0 Histogram Lead (mg/Kg)Percent4.54.03.53.02.52.0 99.9 99 95 90 80 70 60 50 40 30 20 10 5 1 0.1 Log-Normal Probability Plot Descriptive Statistics n 321 DF 100% Min 6.63 Max 94.7 Mean 27.0 Median 19.6 St. Dev. 20.1 Q1 13.0 Q3 33.4 IQR 20.4 Q3+1.5IQR 64.0 Figure B-1. Example Graphical Representations. Q1 Q3 IQR Outlier cutoff Outlier Mean Median + Mean * + MedianLead (mg/Kg)100 80 60 40 20 0 Boxplot Lead (mg/Kg)Frequency907560453015 80 70 60 50 40 30 20 10 0 Histogram Lead (mg/Kg)Percent4.54.03.53.02.52.0 99.9 99 95 90 80 70 60 50 40 30 20 10 5 1 0.1 Log-Normal Probability Plot Descriptive Statistics n 321 DF 100% Min 6.63 Max 94.7 Mean 27.0 Median 19.6 St. Dev. 20.1 Q1 13.0 Q3 33.4 IQR 20.4 Q3+1.5IQR 64.0 Figure B-1. Example Graphical Representations. Q1 Q3 IQR Outlier cutoff Outlier Mean Median + Mean * + Median PROVEN TECHNOLOGIES AND REMEDIES GUIDANCE – REMEDIATION OF METALS IN SOIL Background Estimates of Metals in Soil B-11 Table 1. Selected Quantitative Tests for Normality. TEST SAMPLE SIZE RECOMMENDED USE None recommended < 8 Not applicable. Tests Recommended by EPA (2006b) Shapiro Wilk W Test < 5000 Highly recommended by EPA (2006b). Filliben’s Statistic < 100 Highly recommended by EPA (2006b), especially in conjunction with a normal probability plot. Skewness and Kurtosis Tests > 50 Useful for large sample sizes (EPA, 2006b). Geary’s Test > 50 Useful when tables for other tests are not available (EPA, 2006b). Studentized Range Test < 1000 Highly recommended, except for asymmetric data with large tails (EPA, 2006b) Chi-Square Test Large Useful for grouped data and when the comparison distribution is known (EPA, 2006b) Lilliefors Kolmogorov-Smirnoff Test > 50 Useful when tables for other tests are not available (EPA, 2006b). Other Tests Coefficient of Variation Test Any Only use to quickly discard an assumption of normality D’Agostino Test 50 < n <1000 Data sets with 100% detection frequency (NAVFAC, 2002). Note: Table not intended to be inclusive for all possible tests for normality. 3.3.4 Outlier Identification and Removal Outliers are measurements that are extremely large or small relative to the rest of the data and are thought to misrepresent the population from which they are intended to be collected (EPA, 2006b). These values may be a result of errors associated with the sample collection, laboratory analysis, transcription, or data entry. The values could also be a true reflection of the population being sampled (e.g., heterogeneous geologic conditions, evidence of contamination). A conservative approach should be taken to identify outliers in the background data set because inclusion of these values may bias the population estimates derived from the data set. For example, mean values are particularly sensitive to outliers. Also, the maximum value in the background data set may be set too high and thus affect the COPC identification process. The background data set should be screened for outliers using multiple approaches (described below and summarized in Table 2), evaluating the reason for any extreme values, and using professional judgment to remove data points that are interpreted as outliers. PROVEN TECHNOLOGIES AND REMEDIES GUIDANCE – REMEDIATION OF METALS IN SOIL Background Estimates of Metals in Soil B-12 Table 2. Selected Outlier Screening Methods. APPROACH METHOD ASSUMES NORMAL DISTRIBUTION? SAMPLE SIZE ABLE TO ADDRESS MULTIPLE OUTLIERS? Graphical Identification of Unusual Data Points 1 Graphs of Data No n > 6 Yes Quantitative Tests Recommended by EPA (2006b) 2 Extreme Value Test Yes n < 25 Only if apply test to least extreme value first (EPA, 2006b). Discordance Test Yes 3 < n < 50 No Rosner’s Test Yes n > 25 Yes, up to 10 outliers (EPA, 2006b) Walsh’s Test No n > 50 Yes Outlier Cutoff Value 3 Quartile-Based Outlier Cutoff No n > 6 Yes Note: Table not intended to be inclusive for all possible outlier screening methods. The simplest approach consists of evaluating graphs of the data (e.g., box plots, scatter plots) for unusual data points. Another approach is to use an appropriate quantitative statistical method to screen for outliers. Detailed descriptions of outlier screening methods are provided in EPA (2006b) and Gilbert (1987). A third approach for identifying outliers is based on the values used to construct a box-and-whisker plot of the data set (see Section 3.3.2). The approach ranks the data, and determines the largest measurement corresponding to the first quartile (Q1) and third quartile (Q3). The outliers are then identified as values that fall above or below the following: Lower Outlier Cutoff: Q1 - 1.5 (Q3-Q1)4 Upper Outlier Cutoff: Q3 + 1.5 (Q3-Q1) This approach is an iterative process in which Q1, Q3, and the cutoffs are recalculated each time outliers are removed from the data set. The process continues until no data points fall outside of the outlier cutoffs. Without additional data collection, this approach may be the only option available for data sets with small sample sizes. This approach may also be useful for identifying outliers in data sets with neither normal nor log-normal distribution. 3.3.5 Treatment of Censored Data Some measurements in the data set may be reported as less than a reporting limit (i.e., the concentration falls between “0” and the reporting limit). These censored values 4 The difference between Q3 and Q1 is referred to as the interquartile range (IQR) or fourth spread (fs). PROVEN TECHNOLOGIES AND REMEDIES GUIDANCE – REMEDIATION OF METALS IN SOIL Background Estimates of Metals in Soil B-13 (also known as non-detects) are still part of the background data set, but will need to be addressed before performing some quantitative analyses. The number of censored values in a data set is often discussed in terms of the detection frequency5, which is simply the ratio of the number of detected values and the total number of values in the data set. Some statistical procedures require a certain detection frequency. The approach used to deal with censored values should be selected based on the data set characteristics and the intended use of the data. EPA (2006b) and Helsel and Hirsch (2002) provide some general guidelines for addressing censored data. These guidelines are summarized in Table 3. Discussions regarding these methods can be found in EPA (2006b) and NAVFAC (2002). Table 3. General Guidelines for Addressing Censored Data. PERCENTAGE OF CENSORED VALUES STRATEGY COMMENT < 15% Aitchison’s Method or Cohen’s Method Cohen’s method can be used if n > 20 (EPA, 2006b). < 15% Replace censored values with the RL, one-half the RL, or replace with a very small number.1 • For some sample sizes, replacement of censored values may affect estimate of parameter variability. • Check to make sure that replacement value does not overly-influence the calculated population parameters. 15 to 50% Replace censored values with the RL, one-half the RL, or a very small number. 1 • Consider using non-parametric methods or test of proportions to analyze data. Alternatively, consider using Cohen’s or Aitchison’s Method. • Check to make sure that replacement value does not overly-influence the calculated population parameters. 15 to 50% Aitchison’s Method or Cohen’s Method See EPA (2006b) for distributional assumptions and for recommended criteria for selecting which method to use. 15 to 50% Trimmed mean Discards tails of data for unbiased estimated of the population mean. 15 to 50% Winsorized mean and standard deviation Replaces data in tails of data set with next most extreme data value. >50 to 90% Tests for proportions. For data sets having this range of detection frequency, descriptive statistics do not provide much insight into the underlying distribution of measurements. >90% None Consult with a statistician. Notes: RL is reporting limit. 1 The ProUCL User Guide (EPA, 2007) notes that substitution methods may not perform well even for detection frequencies as low as 5 to 10 percent. Further, the ProUCL User Guide suggests avoidance of substitution methods for some estimation and hypothesis testing approaches. 3.4 DOCUMENTING BACKGROUND ESTIMATES At a minimum, documentation of the process used to develop the background estimates should include: 5 Detection frequency can be expressed as either a ratio or as a percentage (ratio multiplied by 100). PROVEN TECHNOLOGIES AND REMEDIES GUIDANCE – REMEDIATION OF METALS IN SOIL Background Estimates of Metals in Soil B-14 • Description of site history and setting, • Summary of major soil types at the site, • Description of background data set (e.g., sample numbers, map of locations, data posted on maps, reports that present the results of data included in the data set), • Demonstration that background data set is adequate, • Description of steps used to evaluate the data set and rationale for any data set adjustments, • Descriptive statistics for background population before and after any adjustments to the data set, and • Appropriate figures, graphics, and tables. 4.0 IDENTIFYING METALS AS CHEMICALS OF POTENTIAL CONCERN As discussed in Chapter 5, the background data set is used to screen on-site data to determine which metals should be identified as COPCs. If multiple soil types are present, this comparison should compare background and on-site data from the same soil types. The steps that should be followed for this comparison are: Step 1 For each metal, compare the highest site concentration with the highest background concentration. If the site concentration is equal to or less than the highest background concentration, the metal may be eliminated as a COPC. If the onsite maximum concentration is greater than the background maximum concentration and the detection frequency is greater than 50 percent, go to Step 2. If the detection frequency is less than 50 percent and the onsite maximum is greater than the background maximum, retain the metal as a COPC. Step 2 For each metal, compare the site and background arithmetic mean concentrations. If the means are comparable, and if the highest site concentration is below the concentration associated with unacceptable risk or hazard, the metal may be eliminated as a COPC. If the metal is not eliminated by this screening, go to Step 3. Step 3 Statistically compare the site and background concentrations. Select the statistical approach depending on the sample size. Option 1. If the data set is of sufficient size, statistically evaluate the overlap of the background and on-site distributions to determine if the data sets come from the same population and have the same distribution. If so, and if the highest site concentration is below the concentration associated with unacceptable risk or hazard, the metal may be eliminated as a COPC. If not, include the metal as a COPC in the risk evaluation. Table 4 summarizes some options for making this statistical comparison. The statistical PROVEN TECHNOLOGIES AND REMEDIES GUIDANCE – REMEDIATION OF METALS IN SOIL Background Estimates of Metals in Soil B-15 comparison method should be selected based on site-specific considerations, desired statistical power, and the data set characteristics. Option 2. If the background data set is limited (i.e., small sample size), the site data can be evaluated using probability plots to determine if one or more populations are present. If only one population is present, and if the highest on-site concentration is below the concentration associated with unacceptable risk or hazard, the metal may be eliminated as a COPC. If two or more populations are present, include the metal as a COPC. Note that this option should be applied cautiously because using probability plots to screen for multiple populations is subjective and requires professional judgment. Cook (1998) states that use of probability plots for this purpose requires careful consideration of the “actual site conditions, sample descriptions, spatial distribution, and the degree to which different soil types, sample types, or qualified data affect the appearance of the plot.” If using this option, it is important to keep the following points in mind: A. Inflection points on probability plots do not always indicate multiple populations or a break in population. Instead, an inflection point may only indicate that the data distribution assumed for construction of the probability plot is incorrect. Inflection points in the probability plot should be carefully evaluated to determine if the point is a true separation of statistical populations (e.g., can the point be explained by site operation history, geological features, and analytical problems) (Cook, 1998). B. A lack of an inflection point does not necessarily indicate one population. Populations may overlap such that they are indistinguishable on a probability plot. Given that each population will have its own characteristics, supplemental EDA is needed to assist in defining discrete populations (Cook, 1998). C. If a wide range of concentrations are present on-site, including the higher concentrations in the probability plot may hinder the ability to discern the break between populations characterized by lower concentrations. In this instance, excluding data with known impacts may facilitate recognition of multiple populations. Additional information on eliminating metals as COPCs is provided in Selecting Inorganic Constituents are Chemicals of Potential Concern at Risk Assessments at Hazardous Waste Sites and Permitted Facilities – Final Policy (DTSC, 1997). PROVEN TECHNOLOGIES AND REMEDIES GUIDANCE – REMEDIATION OF METALS IN SOIL Background Estimates of Metals in Soil B-16 Table 4. Common Data Set Comparison Methods. TEST TESTS FOR DIFFERENCES IN REQUIREMENTS COMMENT Wilcoxon Rank Sum Test (WRS Test) Medians of the site and background populations. • Only one reporting limit for censored values and all detected values greater than reporting limit. • Data sets comprised of independent, random samples. • Underlying populations have same shape and dispersion. • Detection frequency >60%. • Recommended by DTSC (1997). • May produce misleading results if many tied values (EPA, 2006b). Two-Sample t-Test (Equal Variances) Means of the site and background populations. • Both data sets have a normal distribution, or n>30 for both data sets (EPA, 2006b). • Both data sets have equal variances. • Treatment of censored values has no significant impact on computed mean. • Independent populations. • Outliers may affect test results. • Not well suited to data sets with censored values. Generally use with data sets having detection frequency >85%. Satterthwaite Two-Sample t-Test (Unequal Variances) Means of site and background populations. • Both data sets have a normal distribution, or n>30 for both data sets (EPA, 2006b). • Detection frequency of 100%. • Site and background data sets do not have equal variances. • Independent populations. • Outliers may affect test results. Gehan Test Medians of the site and background populations. • Censoring mechanism for censored values is the same for both populations. Slippage Test Largest values of the site and background populations. • At least one detected background value is present and is larger than the largest censored value. • Independent, random sampling design. • May require large sample size for adequate power. • High outliers may bias test results. • Use in combination Quantile Test Largest values of the site and background populations. • Independent, random or systematic sampling design for both data sets. • Both data sets have similar variances. with t-test or WRS test (EPA, 2006b). Two-Sample Test of Proportions Proportions of the site and background populations above a given cutoff level. • Detection frequency >50%. • Random sampling design for both data sets. • Approximate normal distribution. • Verify that normal approximation may be used (EPA, 2006b). Note: This table summarizes information presented in EPA (2006b) and NAVFAC (2002). Additional details regarding these data set comparison methods can be found in EPA (2006b), NAVFAC (2002), and Helsel and Hirsch (2002). PROVEN TECHNOLOGIES AND REMEDIES GUIDANCE – REMEDIATION OF METALS IN SOIL Background Estimates of Metals in Soil B-17 5.0 DEVELOPING BACKGROUND-BASED CLEANUP GOALS FOR METALS As discussed in Chapter 5, it is anticipated that cleanup goals for certain metals (e.g., arsenic) may need to be developed using background values because the risk-based cleanup goal would be below the concentration that occurs in nature. In general, two options are available for developing background-based cleanup goals for metals (DTSC, 2007). Option 1. Use an upper limit of the background data set (e.g., 95th percentile concentration, maximum concentration) as the cleanup goal. Option 2. Select a cleanup goal based on a graphical and statistical evaluation of the background and site data sets. - The graphical evaluation consists of using probability plots of the combined site and background data sets to interpret an inflection point as an approximation of the cleanup goal. When making this approximation, please refer to the caveats for interpreting inflection points on probability plots that are discussed on page B-15. - The statistical evaluation consists of calculating the upper 95 percent Limit for the 0.99 Quartile (UL0.95(X0.99)) as described by Gilbert (1987). The DTSC document entitled, Arsenic Strategies, Determination of Arsenic Remediation, Development of Arsenic Cleanup Goals for Proposed and Existing Schools Sites (DTSC, 2007), provides examples of how to derive a cleanup goal using these two options. Please note that these examples may not be applicable to, or feasible for, all sites. The document is included as Attachment A of this appendix. 6.0 REFERENCES Cook, P.D. 1998. Estimating Background Concentrations of Inorganic Analytes from On-Site Soil Sample Data. Superfund Risk Assessment in Soil Contamination Studies: Third Volume, ASTM STP 1338. K.B. Hoddinott, Ed. American Society for Testing and Materials. DTSC. 1997. Selecting Inorganic Constituents are Chemicals of Potential Concern at Risk Assessments at Hazardous Waste Sites and Permitted Facilities – Final Policy. Human and Ecological Risk Division. February. www.dtsc.ca.gov/AssessingRisk/upload/backgrnd.pdf DTSC. 2007. Arsenic Strategies, Determination of Arsenic Remediation, Development of Arsenic Cleanup Goals for Proposed and Existing Schools Sites. March. www.dtsc.ca.gov/Schools/upload/Arsenic-Cleanup-Strategies-March-2007.pdf Gilbert, R.O. 1987. Statistical Methods for Environmental Pollution Monitoring. Van Nostrand Reinhold, New York. PROVEN TECHNOLOGIES AND REMEDIES GUIDANCE – REMEDIATION OF METALS IN SOIL Background Estimates of Metals in Soil B-18 Helsel, D.R. and R.M. Hirsch. 2002. Chapter A3, Statistical Methods in Water Resources. Book 4, Hydrologic Analysis and Interpretation. Techniques of Water- Resources Investigations of the United States Geological Survey. September. pubs.usgs.gov/twri/twri4a3. Naval Facilities Engineering Command (NAVFAC). 2002. Guidance for Environmental Background Analysis, Volume I: Soil. NFESC User’s Guide UG-2049-ENV. April. https://portal.navfac.navy.mil/portal/page?_pageid=181,5386718&_dad=portal&_schema=PORTAL Pacific Northwest National Laboratory (PNNL). 2007. Visual Sample Plan, Version 5.0, Users Guide. PNNL-16939 September. dqo.pnl.gov/vsp/pnnl16939.pdf U.S. Environmental Protection Agency (EPA). 1989. Risk Assessment Guidance for Superfund, Volume I: Human Health Evaluation Manual (Part A). EPA/540/1- 89/002. www.epa.gov/oswer/riskassessment/ EPA. 1992. Statistical Methods for Evaluating Attainment of Cleanup Standards, Volume 3: Reference-Based Standards for Soils and Solid Media. EPA 230-R-94-004. December. www.clu-in.org/download/stats/vol3-refbased.pdf EPA. 1995. Engineering Forum Issue: Determination of Background Concentrations of Inorganics in Soils and Sediments at Hazardous Waste Sites. EPA/540/S-96/500. December. www.epa.gov/esd/tsc/images/engin.pdf EPA. 2002a. Guidance for Comparing Background and Chemical Concentrations in Soil for CERCLA Sites. EPA 540-R-01-003. September. www.epa.gov/oswer/riskassessment/pdf/background.pdf EPA. 2002b. Guidance for Choosing a Sampling Design for Environmental Data Collection. EPA/240/R-02/005. December. www.epa.gov//quality1/qs-docs/g5s-final.pdf EPA. 2006a. Data Quality Assessment: A Reviewer’s Guide, EPA QA/G-9R. EPA/240/B-06/002. February. www.epa.gov/quality/qa_docs.html EPA. 2006b. Data Quality Assessment: Statistical Methods for Practitioners, EPA QA/G-9S. EPA/240/B-06/003. 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