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Table 3 Historical Soil Analytical Data Arco Service Station No.2186 3212 North Califomia Street,Stockton,Callfomia Sample TPH as MTBE MTBE Sample Depth Date Gasoline Benzene Toluene Ethylbenzene Xylenes 8020 8200 TBA DIPE ETRE TAME 1,2-DCA Ethanol Lead Name (feet) Sampled ( ) ) m k ) fkg) (mglkg) (m k ( 1k ) ( ) ) An le Boreholes J L� B-2 16 6128195 <4.0 -0.0050 <0.0050 -0.0050 <0.0050 - - - - - - - 25 6/28/95 <1-0� -0.0050 40.0050 40.0050 50.0050 - - B-6 16 9!6195 <1-0 <0.0050 40.0050 x0.0050 -0.0050 - -. 25 9!6!95 <J'C <0.0050 -0.0050 -0.0050 X0.0050 - - Monitoring Wells MW11B-1 27 8128195 11.OA► <O.OD50 <0.D050 0.011 0.06 - - 37 8128195 2.61 <D.DD50 0.01 0.027 0.19 - - - - - - - - 0 47 8!28199 0.0d <D.DD50 <0.D050 0.048 0.12 - - - - - - - - - 57 8128195 1.1/ 0.02 8 0.01 0.041 0.15 - - - - - - MW-216 22 8129195 41. -0.0050 kO.DO50 <0.0050 <0.D050 - - - - - 37 6129195 <1.0 <0.0050 <O.IOS0 40.0050 50.0050 - - -- - - 57 8129195 <1.0 <D.00SO 40.0050 40.0050 50.0050 - _ MW-3/8-5 22 916195 -1.0 -0.0050 -0.0050 -0.0050 -0.0050 - - - - - - - - 37 9!6/95 <1- <D.DOSD -0.0050 <0.0050 -0.0050 - - - - - - - - - 57 916/95 <1. -0.0050 -0.0050 -0.0050 40.0050 - - - - MW-4 41 10/30197 <1-0 59.0050 <0.0050 40.0050 -0.0050 - 51 10130P97 1t.0 10.0050 <0.0050 <0.0050 <0.D050 - - MW-5 35 8113/01 <5.0 <0.025 <0.025 -0.025 -0.025 - <0.10 O<0.10 -0-10 <0.10 x.10 - - 41 8113/01 <5.0 <0.025 <0.025 <0.025 <0.025 - -0.10XOO -0.10 -0.10 <0.10 <0.10 - - 61 8114/01 <5.0 <0.025 40.025 <0.025 -0.025 - <0.t0 <0.10 <D.10 40.10 -0.10 - - 81 8114101 45.0 -0.025 -0.025 -0.025 -0.025 <0.10 -0.10 <0.10 <0.10 <0.10 - MW$ 36 8114101 45.0 <0.025 <0.025 <0.025 <0.025 - <0.10 <10 40.14 -0.10 -0.10 50.10 - - / 46 8/14101 45.0 <0.025 <0.025 <0.025 <0.025 - <0.10 4 0 40.10 10.10 <0.10 -0.10 - - 61 8114101 -5.0 -0.025 -0.025 -0.025 -0.025 - -0.10 < .D 10.10 <D.10 <0.10 <0.10 - - 81 8114101 45.0 <0.025 <0.025 <0.025 <0.025 - 10.10 .4 40.10 -0.10 -0.10 -0.10 - MW-7 41 8/13101 45.0 <0.025 <0.025 <0.025 0.03 - -0.10D -0.10 -0.10 <0.10 <0.10 - - 46 8113101 <5.0 40.025 <0.025 <0.025 <0.025 - -0.10 D <0.10 <0.10 <0.10 40.10 - - 66 8113/01 45.0 40.025 <0.025 40.025 <0.025 <0.10 .0 <0.10 <0.10 <0.10 <0.10 - - 81 8113101 45.0 -0.025 -0.025 10.025 0.03 - <0.10 .0 <0.10 <0.10 <0.10 <0.10 - - ''ii { fl MW$1BH-3 50 4114!04 41.4 :0.0050 -0.0050 -0.0050- -0.0050- - 0.63 0.18 - 50.0050+-0.0050* 0.01 ! 10.0050} <0.20- - !'n e. l-f 97 4114/04 <1. -0.0050 -0.0050 <0.0050 <0.0050 - - <0.0050 - 40.10. 40.0050- <0.DD50^<0.0050< <0-0050 <0.20 Remedla60n Wells VW-118-3 22 8128195 -1A -0.0050 10.0050 -0.0050 -0.0050 - - - - - - - -- - 32 8128/95 -1R -0.0050 <0.0050 -0.0050 0.024 - 42 8128195 3.31 <O.D050 0.02 0.03 0.206 - - - - - •• - - - 57 888195 1.1 0.02 0.00 0.02 0.18 VW-21B-7 12 917195 41.0 W.0050 <0.0050 <0.0050 0.010 - 37 917195 1.41 40.0050 -0.0050 0.01 0.052 - 47 917195 41.0 -0.0050 10.0050 <0.0050 0.0067 - - - - - - - - - 57 W7416 <1.0 -O.DO50 0.01 <0.0050 0.014 I Remedlallon Walls 1 VW-3A3-8 27 917M1, `1-O.D050 0,01 -0.0054 0.01 - 42 917195 -1.0 -0.0050 <0.0050 -0.0050 <0.0050 - - -- -- - - - - - 57 917!95 <1. <0.0050 <0.0050 -0.0050 10.0050 - - - - - -VW-4/BM-1 40 4113104 <0.5. <0.0054- <0.0050- <0.0050 . <0.0050 ► - <OMSO <0.10 r <0.0050 <0.0050,:0.0050.<O.0050 <0.20" fYJA O AW-11BH-2 50 4113104 0.73 ' <O.OD50 <0.0050 <0.0050- <0.0050 - 0.86. 0.26- -0.0050 10.0050 0.073 40.0050 40x0 - m4o N {i,U - 2186 Historical Soil Table.xls Page 2 of 3 SECOR