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TABLE 2 CUMULATIVE ANALYTICAL RESULTS -GROUNDWATER 10 1 San Joaquin County Courthouse,222 E Weber Avenue,Stockton,California �- OXYGENATES SAMPLE DATE ETHYL rot / LOCATION SAMPLED TPN G BENZENE TOLUENE BENZENE XYLENES MTBE DIPE ETRE TAME TBA 1.2 DCA 8 1 02!03101 120 24 ND<0 5 5 2 1 5 6 6 ND<0 6 ND<0 5 ND10 5 ND<5 NA e 2 42/03/01 36,000 1 700 4 600 1400 5 900 25 ND<5 ND<5 ND<6 ND<50 NA B3 02103/01 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<D 5 ND<0 5 ND<5 NA MW 1 07124/02 27,000 1,800 4.300 1 600 6,200 45 ND<5 ND<5 ND<5 ND<50 ND<5 11125/02 26.000 1.000 2,400 1,200 3,70D 19 ND<0 5 ND<O 5 —ND-0 5 ND<5 NA ' 02119103 18,000 1,200 1,300 1,000 3,200 ND45 ND<5 ND<5 ND<5 ND<50 ND<5 05109143 11'000 880 430 980 2.600 1,413<5 ND<5 ND<5 ND<5 ND<50 ND<5 09112103 21.000 1,200 79 1.300 4,400 15 ND<5 ND<5 ND<5 ND<SD ND<5 1211103 15,000 1,900 170 1.800 4,600 20 ND<5 ND<5 N0<5 ND<50 1410<5 03124/04 29,000 1,900 280 2,000 6,800 13 ND<5 ND<5 ND<5 ND<50 ND<5 06116/04 11 000 710 35 940 2 600 10 ND<5 ND<5 ND<5 ND150 ND<5 0819104 5,700 420 ND<20 57D 1,200 77 ND<5 ND<5 ND<5 ND<50 ND<5 12=105 4 700 370 10 480 680 ND<5 ND<5 ND<5 ND<5 ND<60 ND<5 03!23105 6 100 640 57 660 1,400 66 ND<5 ND<5 ND<5 ND<50 ND<5 06/29/05 1480 129 294 190 218 ND<5 ND<5 ND<5 ND<5 ND-50 ND45 09121/05 919 102 N0<25 141 159 N0<5 ND<5 ND<5 ND-5 N0<50 ND<5 12/30105 727 84 5 2 7 87 1 49 8 27 ND<0 5 ND-0 5 N0<0 5 ND<5 ND<0 5 03!15!06 407 474 29 441 137 22 ND<O 5 NO<0 S NDcD 5 ND<5 Is 00!21106 ass 22 ND<0 5 49 ND<1 0 31 ND<0 6 ND<0 5 ND<0 5 ND<5 ND<0 5 MW 2 07124/02 NO-50 ND<0 5 NO<0 5 ND<0 5 ND<t ND<0 5 ND<D 5 ND<0 5 ND<D 5 ND<5 ND<0 5 11125/02 ND<5D ND<0 5 ND<0 5 ND<0 5 ND<1 ND<0 5 ND<0 5 NO<0 5 ND<0 5 ND<5 NA 02119/03 ND<50 ND<0 5 ND<o 5 N0<0 5 ND<1 ND<0 5 ND<0 5 ND<0 5 ND<D 5 ND45 NO<0 5 05109!03 ND<50 NO<0 5 ND<0 5 ND<0 5 ND 09112T ND<50 ND40 6 No<0 5 NO<0 5 ND 12/11/03 ND<50 ND<0 5 ND<0 5 NDeo 5 N00 ND<0 5 ND<O 5 ND<0 5 NO-0 5 ND<5 ND<0 5 03/24/04 NOT SAMPLED DUMPSTER OVER WELL 06/18/04 NDc50 ND10 5 ND<D 5 ND<0 5 ND<t 11 ND<05- ND-GS ND<0 5 ND<5 ND<0 5 08/19104 ND<50 ND<()5 NO<0 5 ND<0 5 ND 12130105 ND-50 ND<0 5 ND<0 5 ND<0 5 ND<1 23 ND<0 5 ND<0 5 ND<0 5 ND<5 ND<0 5 03/23105 ND<50 NO<0 6 ND<o 5 ND<0 5 ND<1 29 ND<0 5 NDcG 5 ND10 6 N045 NO-0 5 06/23105 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<1 37 ND<0 5 ND<0 6 ND<0 5 ND<5 ND<0 5 09!21105 ND<50 N0<0 5 ND<0 5 ND<0 5 NO" 4 2 ND<0 5 ND<0 5 ND<0 5 ND<6 ND40 5 12130!05 ND<50 ND<0 5 ND<0 5 ND<0 6 ND<1 41 ND<0 5 ND<0 5 ND40 6 ND<5 ND<0 5 03/15/06 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<1 38 NO<0 5 ND<O 6 NO-05 ND<5 NO<0 6 06121106 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<7 30 ND<0 5 ND<o 5 ND<0 5 ND<5 MW 3 07/24/02 ND150 NDe0 6 ND<0 5 1 ND<0 5ND<1 ND<0 5 ND<0 5 ND<0 5 ND<0 6 ND<5 NO<0 5 11!25102 ND<50 ND<0 5 ND<0 6 ND<0 5 ND<1 ND<0 5 ND<0 5 ND<0 5 ND<0 6 ND45 NA 0219103 ND<50 ND<0 5 NO<0 5 ND<0 5 ND<t ND<0 5 NDc0 5 ND<0 5 ND-D 5 1413<5 ND<0 5 05/09/03 ND<60 N1)<0 5 ND<0 5 ND<0 5 ND<1 ND<0 5 ND<o 5 ND<0 5 ND<0 5 ND<5 ND<0 5 09112/03 ND<50 ND<0 5 ND<0 5 ND<0 6 ND<1 ND<0 5 1%1113<0 5 ND<0 5 NO<0 5 NO<5 ND<0 5 12111103 ND<50 No<0 5 ND<0 5 ND<0 5 ND<1 NO-05 1%10<0 5 ND<0 6 NO<0 5 ND<5 ND<0 6 03!24104 1 ND<50 ND<0 5 ND<0 5 N13<0 5 N0<1 05 ND<0 5 ND<0 5 ND<0 5 NDa5 ND<0 5 06118104 ND<SD ND<0 5 NO<0 5 ND<0 5 No<7 42 ND<O 5 ND<0 5 ND<0 5 ND<5 ND<0 5 06119104 ND<50 ND<O 5 ND<0 5 ND-0 5 ND<1 as ND-05 ND<0 5 ND<0 5 ND<5 ND<D 5 12/30/15 ND<50 ND<0 5 ND<0 5 ND<O 5 ND<t 67 ND<0 5 ND<0 5 ND<0 5 ND<5 ND<0 5 03/23/05 ND<50 ND<0 5 ND<0 5 ND<o 5 ND<1 so ND-05 ND<0 5 ND<0 5 ND<5 ND<0 5 06129/15 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<1 57 ND<0 5 ND<0 6 ND40 5 ND<5 ND<0 5 09121105 ND-50 ND<0 5 ND<0 5 ND<0 5 ND41 42 ND<0 5 ND<0 5 ND<0 5 ND<5 ND<0 5 12/30/05 ND-50 NO<0 5 ND<0 5 ND<0 5 ND 03/15M ND<50 ND<0 5 ND<0 5 ND<0 5 ND<1 17 ND<0 5 ND<o 5 ND<0 5 ND<5 ND<0 5 < 06/21/46 ND<50 NO<0 5 ND<0 5 ND<0 5 ND<t 1 5 ND<0 5 NO<o 5 ND<0 5 ND<5 ND<0 5 NOTES Al results are reported to micrograms per liter(ugA) which translates to parts per billion(ppb) Total Petroleum Hydrocarbons as Gasoline(TPH-G)and benzene toluene ethylbenzene xylenes(BTEX)analyzed by EPA Method 8020/8016M or 62608 Oxygenates methyl t-butyl ether(MTBE) dHsopropyt ether(DIPE) ethyl t-butyl ether(ETRE) tert amyl methyl ether(TAME)and tart butanol(TBA) analyzed by EPA Method 82608 1 2-dichlorcethane(1 2-13CA)also analyzed by EPA Method 8260B ND<50=Not Detected at reporting limit of 50 ppb NA=Not analyzed for specified compound t of 1