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r r r r r r r r r r■ ■r it r� r� ■r� ri r s Pa gf Table 1: Historical Soil Sample Analytical Results Chevron Service Station#9-4275 2905 West Benjamin Holt Drive Stockton,California Depth of TPH as Total TPH as Sample Sample Gasoline Benzene Toluene Ethylbenzene Xylene MTBE Lead EDB Diesel Name/i D Date (feet) (TI&)(a) (mg/kg)(a) (mg/kg) (a) (mg/kg) (a) (mg/kg)(a) (m ) (a) (mg/kg) ( k ) (b) (m g) (a) SB-2 20-Jun-94 10 120 0 053 018 084 27 --- --- --- 15 2,600 11 90 67 360 --- --- --- --- 20 22 0 570 0180 0 330 0 650 --- --- --- -- SB-3 20-Jun-94 10 ND(<1) ND(<0 005) ND(<0 005) 0 014 0 026 --- -- --- -- 15 40 019 042 069 29 -__ 17 300 15 22 56 26 --- --- --- -- SB-4 20-Jun-94 10 ND(<i) ND(<0 005) ND(<0 005) ND(<0 005) ND(<0 005) --- -- -__ --- 15 ND(<1) ND(<0 005) ND(<0 005) ND(<0 005) ND(<0 005) --- --- --- 17 14 0 053 013 011 0 099 --- -- --- --- Piping Samples: P1 18-Nov-96 3 81 0 011 0 022 00091 0 030 0 029 69 --- 24 P2 18-Nov-96 35 39 ND(<0 005o) 0013 00052 0 034 Oil 73 --- 15 P3 18-Nov-96 3 ND(<10) ND(<0 0050) ND(<0 0050) ND(<o 0050) ND(<0 0050) ND(<0 025) 70 --- 12 P4 18-Nov-96 35 ND(<5 0) 029 ND(<o 025) ND(<o o25) 0 026 14 52 --- 15 P5 18-Nov-96 35 ND(<10) ND(<0 0050) ND(<o 0050) ND(<0 0050) ND(<o 0050) 35 51 --- ND(<1 0) P6 18-Nov-96 3 23 0 096 0 016 0 060 013 15 65 --- 10 P7 18-Nov-96 35 ND(<10) ND(<0 0050) ND(<0 0050) ND(<0 0050) ND(<0 0050) ND(<0 025) 72 --- ND(<10) P8 18-Nov-96 4 ND(<10) ND(<0 0050) ND(<o 0050) ND(<0 0050) ND(<0 0050) ND(<0 025) 5 1 --- 1 1 P9 18-Nov-96 4 ND(<10) ND(<0 0050) ND(<0 0050) ND(<0 0050) 00050 ND(<0 025) 51 --- ND(<10) P10 18-Nov-96 35 ND(<1 0) ND(<0 0050) 00073 ND(<0 0050) 0 025 ND(<0 025) 63 --- 40 P11 18-Nov-96 4 ND(<l 0) ND(<0 0050) ND(<0 0050) ND(<0 0050) ND(<0 0050) 0 089 83 --- 10 P12 18-Nov-96 4 20 ND(<o oo5o) 0 008 ND(<a 0050) 054 071 69 --- 10 Project No RC0309 010 n1so,i, I GERAGHTY&MILLER,INC �?