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TABLE 2 (Continued) CUMULATIVE ANALYTICAL RESULTS -GROUNDWATER San Joaquin Catholic Cemetery, Stockton OXYGENATES ID L DATE TPHG BENZENE TOLUENE ETHYL-I BENZENE XYLENES MTBE DIPE ETBE TAME TBA 1,2-DC VW-2D 09/20/96 11,000 1,300 690 510 740 NA NA NA NA NA NA 02/14/97 1,400 350 290 37 160 NA NA NA NA NA NA 05/15/97 12,000 1,000 2,400 500 1,900 NA NA NA NA NA NA 08/13/97 2,400 110 96 55 97 1,800 NA NA NA NA NA 11/14/97 5,700 370 1,300 230 1,000 1,700 NA NA NA NA NA 02/12/98 1,300 120 240 60 200 650 NA NA NA NA NA 05/01/98 2,200 300 420 150 380 600 NA NA NA NA NA 08/07/98 550 220 31 11 13 650 NA NA NA NA NA 111051981 4,200 1 470 360 320 780 1,000 NA NA NA NA NA 02/18/99 3,200 70 ND<5 140 32 870 1 NA NA I NA NA NA 05/20/99 1,200 16 ND<5 84 ND<5 950 NA NA NA NA NA 08126/991 440 ND<1 10 52 ND<1 530 NA NA NA NA NA 11/12/99 760 24 30 55 26 410 ND<O 5 ND<O 5 ND<O 5 64 37 02/17/00 980 ND<1 0 ND<1 0 16 ND<1 0 280 ND<1 0 ND<1 p I ND<1 0 21 32 05/19/00 150 ND<O 5 05 44 12 210 ND<0 5 ND<0 5 ND<O 5 13 26 08/24/00 90 ND<O 5 ND<O 5 13 ND<O 5 79 ND<0 5 ND<O 5 ND<O 5 85 13 11/09/00 73 ND<0 5 ND<O 5 ND<0 5 ND<O 5 130 ND<0 5 ND<O 5 ND<0 5 52 18 02/17/01 ND<50 ND<O 5 ND<O 5 14 ND<0 5 49 ND<0 5 ND<0 5 ND<0 5 ND<5 50 05/18/01 72ND<O 5 ND<O 5 ND<0 5 ND<O 5 55 ND<0 5 ND<0 5 ND<O 5 ND<5 8 5 07/30/01 ND<50 ND<0 5 ND<O 5 10 ND<O 5 71 ND<O 5 ND<O 5 ND<O 5 ND<5 JL7 2 ell#2 06/18/97 ND<100 ND<O 5 ND<1 ND<1 ND<2 NA NA NA NA NA NA 02/17/00 ND<50 ND<O 5 ND<O 5 ND<O 5 15 ND<0 5 ND<O 5 ND<O 5 ND<O 5 ND<5 ND<O 5 05/19/00 ND<50 ND<O 5 ND<O 5 ND<0 5 ND<O 5 ND<0 5 ND<O 5 ND<O 5 ND 08/24/00 ND<50 ND 11/09/00 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<0 5 ND<O 5 ND<0 5 ND<O 5 ND<5 ND<0 5 02/17/01 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<0 5 ND<0 5 ND<0 5 ND<O 5 ND<5 ND<O 5 05/18/07 ND<50 ND<D 5 ND<0 5 NQ<0 5 ND�5rND<o D<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 ND<D 5 07/30/01 ND<50 ND<O 5 ND<0 5 ND<0 5 ND 5 ND<O 5N13<0 5 ND<O 5 1 ND<5 Np<0 5 Notes All data are presented in parts per billion(ppb) Total Petroleum Hydrocarbons as Gasoline(TPHG)analyzed by EPA Methods 8015M or 8260B . Benzene toluene ethylbenzene and xylenes analyzed by EPA Methods 8020 or 8260B Oxygenates Methyt-t-butyl ether(MTBE) Dusopropyl ether(DIPS) Ethyl-t-butyl ether(ETRE) Tert-amyl methyl ether(TAME)and Tert-Butanol(TBA) analyzed by EPA Method 8260B 1 2-01chloroethane(1 2-DCA)analyzed by EPA Method 82608 ND<50=Not detected at laboratory reporting Amit of 50 ppb NA=Not analyzed for indicated parameter ' NS=Well not sampled on specified date