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Table D-1 - Soil/Groundwater Analytes and Screening Levels <br /> Supplemental Site Investigation Work Plan <br /> South Pointe Property <br /> Stockton, California <br /> USEPA Method 8082- Polychlorinated Biphenyls <br /> Analyte Soil Screening Level Groundwater Screening Level <br /> (Residential -mg/kg) (Residential - µg/1) <br /> PCB-1016 0.23 2.2E-01 <br /> PCB-1221 0.23 2 4.7E-03 <br /> PCB-1232 0.23 2 4.7E-03 <br /> PCB-1242 0.23 2 7.8E-03 <br /> PCB-1248 0.23 2 7.8E-03 <br /> PCB-1254 0.23 2 7.8E-03 <br /> PCB-1260 0.23" 7.8E-03 <br /> USEPA Method 8015- Carbon Chain <br /> Analyte Soil Screening Level Groundwater Screening Level <br /> (Residential -mg/kg) (Residential - µg/1) <br /> C6-12 (GRO) 430 1.0E+02 <br /> C13-C28 (DRO) 260 1.0E+02 <br /> C29-C40 MORD 1.2E+04 1.6E+03 <br /> USEPA Method 7196A- Hexavalent Chromium <br /> Analyte Soil Screening Level Groundwater Screening Level <br /> (Residential -mg/kg) (Residential - µg/1) <br /> Hexavalent chromium 0.30 3.5E-02 <br /> USEPA Method 8151 - Pentachlrorophenol <br /> Analyte Soil Screening Level ' <br /> (Residential -mg/kg) <br /> Pentachlorophenol 1.0 <br /> Notes and Abbreviations <br /> 1 -Screening levels are Department of Toxic Substances Control (DTSC) Screening Levels (SLs) -Human Health <br /> Risk Assessment (HHRA) Note 3,June 2020, Revised 2022,except as noted below: <br /> -Green shaded cells represent Regional Screening Levels (RSLs) established by USEPA (May 2022) <br /> -Blue shaded cells represent Environmental Screening Levels (ESLs) established by the San Francisco Bay <br /> Regional Water Quality Control Board (June 2020) <br /> 2-SLs for PCBs are for total PCBs <br /> NE-not established <br /> Stantec Page 4 of 4 1/13/2023 <br />