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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 ETRE TAME TBA 1,2-DCA LEAD TANK 1 09/04/96 TK1-N 13 13 72 08 69 16 85 ND<O 025 NA NA NA NA NA NA TKi-N@15 15 850 ND<2 5 22 22 110 ND<0 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 02 NA NA NA NA NA NA P204 4 N0<1 ND<O 005 ND<O 005 ND<0005 ND<O 005 ND<O 005 NA NA NA NA NA NA DISPENSER 09104/96 DISPENSER 25 ND<1 ND<G 005 ND40 005 ND<O 005 N0<0 005 ND<O 005 NA NA Na Na NA NA t3-1 02103/01 Bi-5 5 ND<1 ND<D 005 ND<O 005 ND<O 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<O 005 NA NA Bi-10 10 ND<1 ND<O 005 ND<O 005 ND<O 005 ND<O 005 ND<O 005 ND<0 005 ND<G 005 ND<O 005 ND<O 005 NA NA B1-15 15 ND<1 ND<O 005 ND<O 005 ND<O 005 ND<0 005 ND<O 005 ND<O 005 ND<O 005 ND<0 005 ND<0 005 NA NA BI-20 20 N0<1 ND<O 005 ND<O 005 ND<O 005 ND<O 005 1 ND<O 005 ND<0 005 ND<O 005 ND<G 005 ND<O 005 NA NA B-2 02/03/01 B2-15 15 400 03 59 11 43 0 065 ND<O 05 ND<O 05 ND<O 05 ND<O 5 NA 95 B2 20 20 20 0 021 0 082 0 038 .022 ND<O 005 ND<O 005 ND<O 005 ND<O 005 ND<0 005 NA NA B-3 02/03/01 B3-15 15 5 8 ND<O 005 ND<O 005 ND<0 005 ND<O 005 ND<O 005 N0<O 005 ND<O 005 ND<O 005 ND<O 02 NA NA 63'20 2D 11 0 019 ND<0 005 0 046 0 052 ND<0 005 ND<O 005 ND<0 005 ND<O 005 ND<0 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<O 005 0 026 0 012 ND<0 005 ND<O 005 ND<0 005 ND<0 005 ND<O 005 ND<O 005 NA MWI-25 25 ND<1 ND<G 005 ND<O 005 ND<0 005 ND<0 005 N0<0 005 ND<0 005 ND<O 005 ND<O 005 ND<O 005 ND<O 005 NA I MW-2 07113102 MW2-15 15 ND<1 ND<O 005 ND<O 005 ND<O D05 ND<0 005 ND<O 005 ND<O 005 ND-0 005 ND<0 005 ND<O 0 ND<0 005 NA MW2-20 20 ND<1 ND<0 005 ND<0 005 ND<O 005 ND<O 005 N0<O 005 ND<O 005 ND<O 005 ND<O 005 ND<G G05 ND<0 005 NA MW2-25 25 ND<1 ND<O 005 ND<O 005 ND<0 005 ND<O 005 ND<O 005 ND<0 005 NO<O 005 ND<O 005 ND<0 005 ND<0 005 NA MW-3 07/13/02 MW3-25 25 ND<1 ND<O 005 ND<0 005 ND<O 005 ND<0 005 NNO 005 ND<O 005 ND<O 005 ND<O 005 ND<O 005 ND<0 005 NA MW3-30 30 ND<1 ND<O 005 ND<0 005 ND<O 005 ND<O 005 [ND<O 005 ND<O 005 ND<0 005 ND<O 005 ND<0 005 ND<G 005 NA MW3-35 35 ND<1 ND<O 005 ND<O 005 ND<O 005 ND<O 005 ND<O 005 ND<0 005 ND<O 005 ND<O 005 ND<D 005 ND<O 005 NA NOTES All results are reported in milligrams per kilogram(mglkg),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 8020/8015M or 8260B Oxygenates methyl tertiary butyl ether(MTBE) di-isopropyl ether(DIPS) ethyl-t-butyl ether(ETBE),tent-amyl methyl ether(TAME)and tert-butanol(TBA)analyzed by EPA Method 82608 1,2-dichloroethane(1,2-RCA)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