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TABLE 1 CUMULATIVE ANALYTICAL RESULTS -SOIL San Joaquin County Courthouse,222 E Weber Avenue, Stockton, California OXYGENATES SAMPLE DATE SAMPLE SAMPLE ETHYL- TOTAL LOCATION SAMPLED ID DEPTH TPH-G BENZENE TOLUENE BENZENE XYLENES MTBE DIPE ETBE TAME TBA 1,2-DCA LEAD TANK 1 09/04/96 TK1-N@13 13 72 08 69 15 85 ND<O 025 NA NA NA NA NA NA TK1-N@15 15 860 ND<2 5 22 22 110 ND<O 1 NA NA NA NA NA NA TK1-S@15 15 1,200 ND<25 42 26 140 ND<O 25 NA NA NA NA NA NA PIPING RUN 09/04/96 P1@45 45 1,600 ND<1 63 95 78 0 2 NA NA NA NA NA NA P2@4 4 ND<1 ND<O 005 ND<O 005 ND<O 005 ND<O 005 ND<O 005 NA NA NA NA NA NA DISPENSER 09/04/96 DISPENSER 25 ND<1 ND<0 905 ND<0 005 ND<0 005 ND<0 005 ND<O 005 NA NA NA NA NA NA 5-1 02/03/01 131-5 5 ND<1 ND<0 005 ND<O 005 ND<0 005 ND<0 005 ND<O 005 ND<O 005 ND<O 005 ND<O 005 ND<O 005 NA NA B1-10 10 ND<1 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<O 005 ND<O 005 ND<0 005 ND<O 005 ND<O 005 NA NA B1-15 15 ND<1 ND<0 005 ND<0 005 ND<0 005 ND<O 005 ND<O 005 ND<O 005 ND<O 005 ND<O 005 ND<O 005 NA NA B1-20 20 ND<1 ND<O 005 ND<O 005 ND<O 005 ND<O 005 ND<O 005 ND<O 005 ND<O 005 ND<O 005 ND<O 005 NA NA B-2 02/03/01 132-15 15 400 03 69 11 43 0 065 ND<O 05 ND<0 05 ND<O 05 ND<O 5 NA 96 82-20 20 20 0 021 0 082 0 038 0 22 ND<0 005 ND<0 005 ND<O 005 ND<O 005 ND<0 005 NA NA 2-:3 02/03/01 83-15 15 5$ NpcD 005 ND<0 005 ND<O 005 ND<O 005 ND<O 005 ND<O 005 ND<O 005 ND<O 005 ND<O 02 NA NA B3-20 24 11 0 019 ND10 005 0 046 0 Q52 ND<O 005 ND<O 005 ND-0 005 ND<0 005 ND10 05 NA NA MW-1 07/13/02 MW1-15 15 1,800 22 43 31 150 ND<2 5 ND<2 5 ND<2 5 ND<2 5 ND<2 5 ND<2 5 NA MW1-20 20 ND<1 ND<O 005 ND<0 005 0 026 0 012 ND<0 005 ND<0 005 ND<O 005 ND<O 005 ND<0 005 ND<0 005 NA MW1-25 25 ND<1 ND<O 005 ND<0 005 ND<O 005 ND<O 005 ND<0 005 ND<0 005 ND<O 005 ND<0 005 ND<O 005 ND<0 005 NA MW-2 07/13102 MW2-15 15 ND<1 ND<0 005 ND<O 005 ND-0 005 ND-0 005 ND<0 005 ND<O 005 ND<O 005 ND<0 005 ND<O 005 ND<0 005 NA MW2-20 20 ND<1 ND<0 005 ND<O 005 ND<O 005 ND<O 005 N0<0 005 ND<O 005 ND<0 005 ND<O 005 ND<O 005 ND<0 005 NA MW2-25 25 ND<1 ND<O 005 ND<O 005 ND<O 005 ND<0 005 ND<O 005 ND<O 005 ND<0 005 ND<O 005 ND<O 005 Np<0 005 NA MW-3 07/13/02 MW3-25 25 ND<1 ND<O 005 ND<O 005 ND<O OD5 ND<O 005 ND<O 005 ND<O 005 ND<O 005 ND<0 005 ND<O 005 ND<O 005 NA MW3-30 30 ND<1 ND<O 005 ND<O 005 ND<O 005 ND<0 005 ND<O 005 ND<O 005 ND<0 005 ND<0 005 ND<0 005 ND<O 005 NA MW3-35 35 ND<1 ND<O 005 ND<O 005 ND<O 005 ND<O 005 ND<O 005 ND<O 005 ND<O 005 ND<O 005 N0<0 005 ND<O 005 NA NOTES All results are reported in milligrams per kilogram(mg/kg),which translates to parts per million(ppm) Sample depths in feet below ground surface,MW-3 is only location at street grade all other locations are sub-street grade Total Petroleum Hydrocarbons as Gasoline(TPH-G),benzene,toluene,ethylbenzene,xylenes(BTEX)analyzed by EPA Method 802018015M or 82606 Oxygenates methyl tertiary butyl ether(MTBE) d4-isopropyl ether(DIPE),ethyl-t-butyl ether(ETRE),tert-amyl methyl ether(TAME)and tert-butanol(TRA)analyzed by EPA Method 82608 1 2-dichloroethane(1,2-DCA)analyzed by EPA method 8260B Total Lead analyzed by EPA Method 6010 ND<1 =Not Detected at reporting limit of 1 ppm NA =Not analyzed for indicated parameter