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TABLE 1 <br />ANALYTICAL RESULTS OF SOIL SAMPLES <br />Global Materials Management <br />1640 Broadway Avenue, Stockton, California <br />(mg/kg) <br />Notes: <br />mg/kg: <br />21 * : Peaks in diesel range but chromatogram does not match that of diesel standard (chromatograms attached in lab reports) <br />43 J : Trace concentration between method detection limits and practical quantitation limit (ie - below detection limits) <br />DTSC-SL: Department of Toxic Substance Control Modified Screening Level (June 2018) <br />EPA -RSL: USEPA Region 9 Regional Screening Levels (November 2017) <br />SFBRWQCB ESL: San Francisco Bay Area Regional Water Quality Control Board Environmental Screening Levels (Feb 2016) <br />Sb: Antimony Pb: Lead <br />As: Arsenic Hg: Mercury <br />Ba: Barium Mo: Molybdenum <br />Be: Beryllium Ni: Nickle <br />Cd: Cadmium Be: Selenium <br />Cr: Chromium Ag: Silver <br />Co: Cobalt TI: Thallium <br />Cu: Copper V: Vanadium <br />Zn: Zinc <br />TTLC California Hazardous Waste Limit for Cr is 2,500 mg/kg and for Pb is 1,000 mg/kg <br />STLC California Hazardous Waste Limit for Cr and Pb is 5.0 mg/I <br />SJCEHD: San Joaquin County Environmental Health Department <br />AGE: Advanced GeoEnvironmental <br />com: commercial/industrial land use <br />res: residential land use <br />Depth <br />6020/6020A <br />TPH-d <br />TPH-mo Sb <br />As <br />Ba <br />Be <br />Cd <br />Cr <br />Co <br />Cul <br />Pb <br />Mo <br />Ni <br />Se <br />Ag <br />V <br />Zn <br />Hg <br />Sample ID <br />Location <br />(ft) <br />Date <br />S6B-2 <br />Floor (bottom) - <br />2' <br />08/15/18 <br />- <br />- - <br />- <br />- <br />- <br />- <br />0.155 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />S6 excavation <br />SP -1 <br />Main Excavation <br />_ <br />08/15/18 <br />- <br />- - <br />- <br />- <br />- <br />- <br />0.239 <br />- <br />- <br />2.2 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />stockpile <br />SP-2/SP-3 <br />SW excavation stockpile <br />- <br />08/15/18 <br />- <br />- - <br />- <br />- <br />- <br />- <br />0.217 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />SP -4 <br />Client generated <br />_ <br />08/15/18 <br />- <br />- - <br />- <br />- <br />- <br />- <br />0.997 <br />- <br />- <br />2.83 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />stockpile <br />512-2 <br />sample point west of S5 <br />2' <br />08/31/18 <br />- <br />- - <br />- <br />- <br />- <br />- <br />0.260 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />Environmental Screening Levels - All Levels in miligram per kilogram (mg/kg) <br />DTSC-SL(com) <br />0.36 <br />170,000 <br />320 <br />64,000 <br />1,500 <br />1,000 <br />23 <br />DTSC-SL (res) <br />- <br />0.11 <br />36,000 <br />80 <br />490 <br />390 <br />390 <br />4.5 <br />EPA-RSL(com) <br />470 <br />3.0 <br />220,000 <br />2,300 <br />980 <br />1.8+6 <br />350 <br />47,000 <br />800 <br />5,800 <br />22,000 <br />5,800 <br />5,800 <br />5,800 <br />35,000 <br />46 <br />EPA-RSL(res) <br />31 <br />0.7 <br />15,000 <br />160 <br />71 <br />120,000 <br />23 <br />3,100 <br />400 <br />390 <br />1,500 <br />390 <br />390 <br />390 <br />23,000 <br />5.1 <br />California Hazardous Waste Limits (mg/1) <br />- <br />- <br />- <br />- <br />- <br />5.0 <br />- <br />- <br />5.0 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />SFBRWQCB ESL (Com) <br />- <br />140,000 <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />- <br />Notes: <br />mg/kg: <br />21 * : Peaks in diesel range but chromatogram does not match that of diesel standard (chromatograms attached in lab reports) <br />43 J : Trace concentration between method detection limits and practical quantitation limit (ie - below detection limits) <br />DTSC-SL: Department of Toxic Substance Control Modified Screening Level (June 2018) <br />EPA -RSL: USEPA Region 9 Regional Screening Levels (November 2017) <br />SFBRWQCB ESL: San Francisco Bay Area Regional Water Quality Control Board Environmental Screening Levels (Feb 2016) <br />Sb: Antimony Pb: Lead <br />As: Arsenic Hg: Mercury <br />Ba: Barium Mo: Molybdenum <br />Be: Beryllium Ni: Nickle <br />Cd: Cadmium Be: Selenium <br />Cr: Chromium Ag: Silver <br />Co: Cobalt TI: Thallium <br />Cu: Copper V: Vanadium <br />Zn: Zinc <br />TTLC California Hazardous Waste Limit for Cr is 2,500 mg/kg and for Pb is 1,000 mg/kg <br />STLC California Hazardous Waste Limit for Cr and Pb is 5.0 mg/I <br />SJCEHD: San Joaquin County Environmental Health Department <br />AGE: Advanced GeoEnvironmental <br />com: commercial/industrial land use <br />res: residential land use <br />