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MOM M = = r M M M M M TABLE 1 CUMULATIVE ANALYTICAL RESULTS -SOIL San Joaquin County Courthouse,222 E Weber Avenue, Stockton, California OXYGENATES SAMPLE DATE SAMPLE SAMPLE ETHYL- BE IOTA! LOCATION SAMPLED ID DEPTH TPH-G BENZENE TOLUENE BENZENE XYLENES MTBE RIPE ETTAME TBA 1,2-DCA LEAD TANK 1 09/04/96 TK1-N@13 13 72 08 59 is 85 ND<0 025 NA NA NA NA NA NA TK1-N@15 15 850 ND<2 5 22 22 110 N0<0 1 NA NA NA NA NA NA TKi-S@15 15 1,200 ND<25 42 26 140 ND<025 NA NA NA NA NA NA PIPING RUN 09104/96 P1@45 45 1,600 ND<1 53 96 78 02 1 NA NA NA NA NA NA P2(M4 4 ND<1 NNO 005 ND<D 005 ND<0 005 ND<0 005 ND<0 005 NA NA NA NA NA NA DISPENSER 09/04/96 DtSPENSER 25 ND<1 ND<0 005 ND<0 005 ND<D 005 ND<0 005 ND<0 005 NA NA NA NA NA NA I B-1 02/03/01 B1-5 5 N0<1 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 NA NA 81-10 10 ND<1 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 NA NA B1 15 15 ND<1 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<D 005 ND<d 005 NA NA B1-20 20 ND<1 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 NA NA B 2 02/03/01 62-15 15 400 03 69 11 43 0 065 ND<0 05 ND<0 05 ND<0 05 ND<0 5 NA 95 62-20 20 20 0 021 0 082 0 036 022 ND<0 005 ND<0 005 N0<0 005 N0<0 005 ND<0 005 NA NA B-3 02/03/01 63-15 15 58 ND<0 005 ND<0 005 ND<D 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 02 NA NA 63-20 20 11 0 019 N0<0 005 0 046 0 082 ND<0 005 ND<0 005 ND<0 005 ND<0 005 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<0 005 ND<0 005 0 026 0 012 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 NA MW1 25 25 N0<1 ND<D 005 NDc4 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<D 005 ND<0 005 N0<0 005 ND<0 005 NA MW-2 07/13/02 MW2-15 15 ND<1 ND<0 005 ND<0 005 ND<0 005 N0<0 005 N0<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 NA MW2-20 20 N0<1 N0<0 005 ND<0 005 ND<D 005 ND<0 005 ND<0 005 N0<0005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 NA MW2-25 25 ND<1 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<D 005 ND<0 005 NA MW-3 07/13/02 MW3-25 25 ND<1 ND<0 005 ND<0 005 ND<D 005 1 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 NA I MW3 30 30 ND<1 N0<0 005 ND<0 005 ND<0 005 1 ND<0 0051 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ND<0 005 NA MW3-35 35 ND<1 ND<0 005 ND<0 005 ND<0 005 ND<0 005 ILND<0005 ND<0 005ND<0 005 N0<0 005 ND<0 005 ND<D 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 ethylbenzerie xylenes(BTEX)analyzed by EPA Method 802016015M or 82606 Oxygenates methyl tertiary butyl ether(MTBE) di-isopropyl ether(DIPE) ethyl t-butyl ether(ETRE) tert-amyl methyl ether(TAME)and tert butanol(TBA)analyzed by EPA Method 82606 1 2-dichloroethane(1 2-DCA)analyzed by EPA method 82608 Total Lead analyzed by EPA Method 6010 ND<1 =Not Detected at reporting limit of 1 ppm NA =Not analyzed for indicated parameter