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M = 4r in M M no we w fM- =- lir TABLE 1 Soil Sample Analytical Results 7-Eleven Store No 21756 853 E Yosemite Avenue Manteca, California Soil = _ Ethyl- MTBE Sample Date Benzene Toluene benzene Xylenes TPH-G TPH-D 8020 J-8260- TBA DIPS ETRE TAME Number (mg/kg) (mglkg) (mg/kg) (mglkg) (mglkg) (mg/kg) (mg/kg) (mg/kg) (mglkg) (mglkg) (mg/kg) (mglkg) UST Pit Soil Samples TIE-N-14' 12/09/98 <0 005 <0 005 _<0 00_5 <0 005 <1 0 <1 0 <0 05 00084 <0 020 <0 005 <0 005 <0 005 T1 E-S-14' 12_1091_98 <0 005 <0 005 _<0 005 <0 005 <1 0 <1 0 <0 05 <0 0050 <0 020 <0 005 <0 005 <0 005 T2C-N-14' 12109_198 <0 005 <0 005 <0 005 <0 005 <1 0 <10 <0 05 00052 <0 020 <0 005 <0 005 <0 005 T2C-S-13' 12109/98 <0 005 <0 005 <0 005 <0 005 <1 0 <1 0 <0 05 <0 0050 <0 020 <0 005 <0 005 <0 005 T3W-N-14' 1210919_8 <0 005 <0 005 <0 005 <0 005 <1 0 <1 0 014 018 <0 020 <0 005 <0 005 I <0 005 T3W-S-14' 12/09/98 _<0 005 <0 0_05 <0_005 <0 005 <1 0 <1 0 <0_0_5 <0 0050 <0 020 <0 005 <0 0_05 j <0 005 PN-4' 121_09198 <0 005 <0 005 <0 00_5 <0 005 <1 0 <1 0 <0 05 <0 0050 <0 020 <0 005 <0 005 I <0 005 PS-4' 12109!98 <0 005 <0 005 <0 005 <0 005 <1 0 <1 0 <0 05 <0 0050 <0 020 <0 005 <0 005 I <0 005 Geoprobe Samples _ GP-1 (15'16) 06/17/99 <0 001 <0 00i <0 001 <0 001 <0 1 -- <0 01 <0 01 <02 <0 01 <0 01 <D 01 GP-2(15'-16') 06117199 <0 001 <0 001 <0 001 <0 001 j <0 1 -- <0 01 <0 01 <0 2 <0 01 <0 01 <0 01 GP-3(15'-16') 06/17/99 <0 001 <0 001 <0 001 <0 001 <0 1 - <0 01 <0 01 <02 <0 01 <0 01 <0 01 GP-4(15'-16') 06/17/99 <0 001 <0 001 <0 001 00032 <0 1 -- 0 175 0 167 <0 2 <0 01 <0 01 <0 01 GP-5(1516') 06117199 <0 001 <0001 <0 001 <0 001 <0 1 -- <0 01 <0 01 <0 2 <0 01 <0 01 <0 01 Monitoring Well Samples I �MW-1@15' � 12/20/99 <0 001 <0 001 <0 001 j <0 001 <0 1 I =- <0 01 <0 01 <02 <0 01 <0 01 <0 01 MW-1@20' 112120/99 I <0 001 1 <0 001 <0 001 <0 001 <0 1 1 <0 01 1 76 <02 <0 01 <0 01 <0 01 �MW-1 @25' � 12/20/99 <0 001 <0 001 <0 001 <0 001 0 136 -- 0 366 1 525 531 <0 01 <0 01 308 �MW-2@15' 112/20199 <0 001 <0 001 <0 001 <0 001 <0 1 -- <0 01 <0 01 <0 2 1001 <0 01 <0 01 I IMW-2@20' 112/20199 ! <0 001 <0 001 I <0 001 4 <0 001 <01 -- 0 0108 135 <0 2 <0 01 <0 01 <0 01 I MW-2@25' 12/20/99 <0 001 <0 001 <0 001 <0 001 <01 -- <0 01 i 308 <02 <0 D1 <0 01 <0 01 MW-3@15' 112/20/99 <0 001 <0 001 I <0 001 <0 001 <0 1 -- ; <0 01 <0 01 <02 <0 01 <0 01 <0( kMW-3@20' 112/20199 < <0 001 <0 001 <0 001 I <0 001 <0 1 -- j <0 01 286 <0 2 <0 01 <0 01 <0 01 ! IMW-3@25 12/20/99 <0 001 <0 001 ' <0 001 <0 001 <0 1 - <0 01 1 78 <02 I <0 01 <0 01 <D 01 Explanation mg/kg=milligrams per kilogram(parts per million) RIPE=Dnsopropyl ether MTBE=Methyl Leri butyl ether ETBE=Ethyl tert butyl ether TAH G=total petroleum hydrocarbons as gasoline TAME=ter/Amyl methyl ether I TPH 0=total petroleum hydrocarbons as diesel TBA=tert Butanol ! I 21756STB WK4