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TABLE 3 Concentrations of CAM 17 Metals in Soil February and March 1998 Sampling and Analyses Tracy Multimodal Station SEC Central Ave./Sixth St. Tracy,California Boring Identification(Sample No.) [Sample Date] HP-1/ HP-1/ HP-2/ HP-2/ HP-3/ HP-3/ HP-4/ HP-4/ HP-5/ HP-5/ HP-6/ HP-6/ Metal B1-5' B1-10' B2-5' B2-10' B3-5' B3-10' B4-5' B4-10' B5-5' B5-10' B6-5' B6-10' B7-15' (#11840) (#11839) (#11823) (#11836) (#56776) (#11833) (#11831) (#11830) (#11828) (#11827) (#11825) (#11822) (#13376) Analytes/Parameters Units [2/19/98] [2/19/98] [2/24/98] 12/24/981 [2/24/98] [2/24/98] [2/24/98] 12/24/981 [2/24/98] [2/24/98] 12/24/981 [2/24/98] [2/24/98] Antimony mg/kg ND(< 10) ND(< 10) ND(< 10) ND(< 10) ND(< 10) ND(< 10) ND(< 10) ND(< 10) ND(< 10) ND(< 10) ND(<25) ND(< 10) ND(< 10) Arsenic mg/kg ND(< 10) ND(< 10) ND(< ]0) ND(< 10) ND(< 10) ND(< 10) ND(< 10) ND(< 10) ND(< 10) ND(< 10) ND(<25) ND(< 10) ND(< 10) Barium mg/kg 150 240 140 130 170 250 140 150 130 91 180 180 140 Beryllium mg/kg ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(<2.5)ND(< 1.0)ND(< 1.0) Cadmium mg/kg ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(<2.5)ND(< 1.0)ND(< 1.0) Chromium mg/kg 27 30 27 21 30 24 24 20 21 26 33 31 19 Cobalt mg/kg 9.8 11 8.9 8.4 11 9 9.8 8.5 8.3 9.9 12 7.9 7.3 Copper mg/kg 22 24 42 17 26. 20 20 16 17 21 2.5 23 16 Lead mg/kg ND(< 10) ND(< 10) 50 ND(< 10) 11 ND(< 10) ND(< 10) ND(< 10) ND(< 10) ND(< 10) ND(<25) ND(< 10) ND(< 10) Mercury mg/kg 0.035 0.051 0.14 0.095 0.17 0.064 0.340 0.25 0.160 0.110 0.035 0.044 0.032 Molybdenum mg/kg ND(<4.0)ND(<4.0)ND(<4.0)ND(<4.0)ND(<4.0)ND(<4.0)ND(<4.0)ND(<4.0)ND(<4.0)ND(<4.0) ND(< 10) ND(<4.0) ND(<4.0) Nickel mg/kg 35 40 33 29 39 33 34 27 30 35 42 43 25 Selenium mg/kg ND(< 10) ND(< 10) ND(< 10) ND(< 10) ND(< 10) ND(< 10) ND(< 10) ND(< 10) ND(< 10) ND(< 10) ND(<25) ND(< 10) ND(< 10) Silver mg/kg ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(< 1.0)ND(<2.5)ND(< 1.0)ND(< 1.0) Thallium mg/kg ND(< 10) ND(< 10) ND(< 10) ND(< 10) ND(< 10) 11 ND(< 10) ND(< 10) ND(< 10) ND(< 10) ND(<25) ND(< 10) ND(< 10) Vanadium mg/kg 31 35 28 28 34 27 29 25 25 31 38 34 27 Zinc mg/kg 1 45 1 45 1 95 1 35 1 53 1 40 43 35 38 45 54 42 35 Notes: ND =None detected at the detection limits shown for the individual analytes shown on the attached laboratory reports. pg/L =micrograms/Liter(parts per million) mg/L =milligrams/Liter(parts per billion) [date] =This is the date the sample was obtained. ND** =None detected for all analytes except those specifically shown on this table. 204054-01.E01 12018e055.xis/sheet:Table 3-Metals in Soil Page T3-1 Copyright 1998,Kleinfelder,Inc. May 8,1998 hn KLEINFELDER