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' TABLE 5 (Continued) CUMULATIVE ANALYTICAL RESULTS -GROUNDWATER San Joaquin Catholic Cemetery, Stockton OXYGENATES ELL DATE TPHG BENZENE TOLUENE ETHYL- XYLENES MTBE DIPE ETBE TAME TBA 1,2-DC ID BENZENE MAD 09/20/96 260 086 ND<D 5 ND<O 5 083 NA NA NA NA NA NA 02/14/97 140 072 ND<0 5 ND<0 5 ND<O 5 NA NA NA NA NA NA 05/15/97 170 ND<0 5 ND<1 ND<1 ND<2 NA NA NA NA NA NA 08/13/97 210 14 09 ND<O 5 10 90 NA NA NA NA NA 11114/97 200 57 76 14 50 60 NA NA NA NA NA 02112/98 110 09 ND<O 5 ND<0 5 ND<2 30 NA NA NA NA NA 05/01/98 90 ND<O 5 ND<O 5 ND<O 5 ND<2 7 NA NA NA NA NA �I 08/07/98 ND<50 ND<O 5 32 ND<O 5 ND<O 5 17 NA NA NA NA NA 11/05/98 ND<50 N13<0 5 ND<O 5 ND<0 5 ND<O 5 20 NA NA NA NA NA 02/18/99 41100 ND<0 5 ND<0 5 ND<O 5 ND<O 5 10 NA NA NA NA NA 05/20/99 260 ND<O 5 07 ND<O 5 ND<O 5 67 NA NA NA NA NA 08/26/991 200 ND<O 5 ND<O 5 ND<O 5 ND<O 5 75 NA NA NA NA NA 11/12/99 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<0 5 68 ND<O 5 ND<O 5 ND<O 5 ND<5 ND<O 5 02/17/00 ND<50 ND<0 5 ND10 5 ND<O 5 ND-0 5 18 ND<O 5 ND<Q 5 ND<0 5 ND<5 056 05/19/001 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<0 5 14 ND<O 5 ND<O 5 ND<O 5 ND<5 ND<O 5 08/24/00ND<50 ND<O 5 ND<O 5 ND<O 5 ND<0 5 087 ND<O 5 ND<O 5 ND<0 5 ND<5 ND<0 5 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 11/05/98 4,200 470 360 320 780 1,000 NA NA NA NA NA 02/18/99 3,200 70 ND<5 140 32 870 NA NA NA NA NA 05/20/99 1,200 16 ND<5 84 ND<5 950 NA NA NA NA NA 08/26/99 440 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<0 5 ND<O 5 64 37 02117/Q0 180 ND<10 ND<10 16 ND110 280 ND<10 ND<10 ND<10 21 32 05/19/00 150 ND<O 5 05 4-4 12 210 ND<0 5 N113<05 N13<0 5 13 26 08/24/00 90 ND<O 5 ND<O 5 13 ND<O 5 79 ND<O 5 N13<0 5 N13<0 5 85 13 WBII#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<0 5 ND<O 5 15 ND<0 5 ND<O 5 ND<0 5 ND<O 5 ND<5 ND<O 5 05/19/00 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<0 5 ND<0 5 ND<Q 5 ND<5 ND<O 5 08/24/00 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<0 5 ND<0 5 ND<O 5 ND<5 ND<O 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 82606 Oxygenates Methyl-t-butyl ether(MTBE) Dwsopropyl ether(DIPE) Ethyl-t-butyl ether(ETRE) Ted-amyl methyl ether(TAME)and Tert-Butanol(TBA) analyzed by EPA Method 8260B 1 2-Dichlomethane(i 2-DCA)analyzed by EPA Method 82606 ND<50=Not detected at laboratory reporting limit of 50 ppb NA=Not analyzed for indicated parameter NS=Well not sampled on specified date