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APPENDIX A SUMMARY OF METALS ANALYSIS Sample Depth 0-6" Soil Sample IA Sample 2A Sample 3A Sample 4A Sample Background Metal (0-6") (0-6") (0-6") (0-691) 5A(0-6") Range' (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) ND ND ND ND ND 0.151.95 Antimon ND ND 0.1-8.3 Silver ND NSD NSD ND ND 0.6-11 Arsenic ND 67 60 71 69 90 133-1400 Barium ND ND 0.25-2.7 Be Ilium ND ND ND Cadmium ND ND ND ND ND 0.05-1.7 Chromium 5.7 5.4 6.4 6.7 6.4 23-1579 Cobalt 5.0 4.5 4.9 4.6 4.7 2.7-46.9 Co er 7.5 9.5 10 11 12 9.1-96.4 22 12.4-97.1 Lead 3.2 5.2 4.6 5.3 ND ND ND D ND Mol bdenum 6.4 9-509 Nickel 6.2 5.3 7.1 6.9 ND ND ND ND ND 0.015-0.43 Selenium ND 5.3-36.2 Thallium ND ND ND ND 18 17 19 18 20 39-288 Vanadium 41 42 62 88-236 Zinc 34 46 Mercu ND ND ND ND ND 0.05-0.9 SUMMARY OF METALS ANALYSIS CONT. Sam le De th 24-30" Soil Sample Sample Sample Sample Sample Background Metal SIA 24 S2A24 S3A 24 S4A24 S5A24 Range (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) (mg/kg) Antimon ND ND ND ND ND 0.15-1.95 Silver ND ND ND ND ND 0.18.3 Arsenic ND ND ND ND ND 0.6-11 Barium 74 44 71 67 69 1331400 Be Ilium ND ND ND ND ND 0.25-2.7 Cadmium ND ND ND ND ND 0.05-1.7 Chromium 6.0 4.4 5.7 6.0 6.0 23-1579 Cobalt 5.1 3.1 4.6 4.1 4.5 2.7-46.9 Co er 7.5 4.0 7.6 10 11 9.1-96.4 Lead 3.3 ND ND 12 16 12.4-97.1 Mol bdenum ND ND ND ND ND 0.1-9.6 Nickel 6.3 4.3 6.2 5.6 5.9 9-509 Selenium ND ND ND ND ND 0.015-0.43 Thallium ND ND ND ND ND 5.3-36.2 Vanadium 19 14 17 15 17 39-288 Zinc 32 22 29 50 55 88-236 Mercury ND I ND ND ND ND 0.05 0.9 ' Background data from KEARNEY FOUNDATION SPECIAL REPORT-Background Concentrations of Trace and Major Elements in California Soils,Kearney Foundation of Soil Science,Division of Agriculture and Natural Resources,University of California,March 1996.