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TABLE 3 <br /> SUMMARY OF SOIL SAMPLE RESULTS FOR SELECTED METALS <br /> Sample Background S61-15 S62-15 S63-15 <br /> Industrial/ Concentrations `/ USEPA RSLs <br /> Date Collected Commercial ESL 1 California (Industrial) 08/06/21 08/06/21 08/06/21 <br /> Constituent -------------------------------------------------mg/kg---------------------------------------------------------------------- <br /> Antimony 160a 0.15-1.95 470 ND ND ND <br /> Silver NP 0.10-8.30 5,800 ND ND ND <br /> Arsenic 0.36 0.6-11.0 3.0 3.10 2.20 3.89 <br /> Barium NP 133-1,400 220,000 166 155 268 <br /> Beryllium 6,900 0.25-2.70 Z300 0.506 0.400 0.548 <br /> Cadmium 4,000 0.05-1.70 980 0.374 0.295 0.437 <br /> Chromium 1,800,0008/ 23-1,579 1,800,000 42.8 35.7 47.3 <br /> Cobalt NP 2.7-46.9 350 16.2 12.6 20.3 <br /> Copper NP 9.1-96.4 47,000 37.6 25.1 41.8 <br /> Lead 320 12.4-97.1 800 6.08 4.43 7.22 <br /> Molybdenum 5,8008/ 0.1-9.6 5,800 ND ND ND <br /> Mercury 1 0.3-0.9 46 0.0429 ND ND <br /> Nickel 820 9-509 64,000 36.4 27.8 46.3 <br /> Selenium 5,8008/ 0.015-0.430 5,800 1.18 1.86 ND <br /> Thallium 128/ 0.17-1.10 NP ND ND ND <br /> Vanadium NP 39-288 5,800 83.3 65.8 95.6 <br /> Zinc NP 88-236 350,000 78.4 54.3 86.5 <br /> Notes: <br /> Soil metals concentrations analyzed via EPA Methods 6010B and 7471A. <br /> 1 Unless otherwise specified,Screening Levels refer to HERO HHRA Note 3.Table 1.DTSC Recommended Screening Levels,June 2020 <br /> a/Refers to San Francisco Bay Regional Water Quality Control Board Environmental Screening Levels(ESL),January 2019. <br /> `/Background Source:Kearney Foundation Special Report,Background Concentrations of Trace and Major Elements in California Soils,1996 <br /> 2 Chromium as Chromium III <br /> NP=No relevant standard published <br /> ND=Constituent not detected <br /> NA=Constituent not analyzed <br /> 202107-8656 Phase II Report Tables <br /> 2546 Turnpike Road,Stockton,CA Page 4 of 10 <br />