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TABLE 2 CUMULATIVE ANALYTICAL RESULTS -GROUNDWATER San Joaquin County Courthouse,222 E Weber Avenue Stockton, California • OXYGENATES SAMPLE DATE ETHYL LOCATION SAMPLED TPH-G BENZENE TOLUENE BENZENE XYLENES MTBE DIPE ETRE TAME TBA 11,2 OCA B 1 02103/01 120 24 NocO 5 52 Is 68 ND<0 5 ND<0 5 ND<0 5 ND<5 NA B2 02103!01 36,00 1,700 4,600 1,400 6,900 25 ND<5 No<5 ND<5 ND<50 NA B 3 02/0$101 ND<50 NocO 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND-05 ND<0 5 N0<5 NA MW 1 07/24/02 27,000 1 800 4,300 1,600 5,200 45 ND<5 ND-5 ND<5 NDc50 ND<5 11/25/02 211000 1 000 2,400 1,200 3,700 19 ND<0 5 ND<o 5 N0,05 ND<5 NA 02/19/03 18 000 1 200 1 300 1 000 3 200 ND<5 NO<5 ND<5 ND<5 ND<50 ND<5 45109/03 11 000 880 430 980 2,600 NO-5 ND<5 ND<5 ND<5 140<50 ND<5 09/12/03 21,000 1.200 79 1,300 4.400 15 ND<5 ND<5 ND<5 ND<5D ND<5 12/11103 15,000 1,900 170 1,800 4,600 20 ND<5 ND<5 ND<5 140<50 ND<5 03124104 29,000 1,900 280 2,000 6,800 13 ND<5 NO<$ ND<5 ND<50 ND<5 06118!04 11,000 710 35 940 2,600 10 ND<5 ND45 ND15 ND<50 ND<5 08119104 5,700 420 ND-20 570 1,200 77 ND<5 ND<5 ND<5 ND<50 ND<5 ' 12/30/05 4,700 1 370 10 480 680 ND<5 ND<$ ND<5 ND<5 ND<50 ND<5 03/23/05 6,100 640 57 880 1,400 6 5 ND<5 ND<5 ND<5 ND<50 ND<5 0612$105 1,480 129 294 190 218 ND<5 ND<5 ND<5 ND<5 ND150 ND<5 ' 09121105 919 102 ND<2 5 141 159 ND<5 NO<5— ND<5 NDc6 ND<50 ND<5 12/30/05 727 845 27 871 490 -71 2 7 ND<0 5 Nb<o 5 ND<O 5 ND<5 ND<0 5 O �L�y 03115106 407 474 29 441 137 2 2 ND<O 5 ND<D 5 ND<0 5 ND<5 1 6 D d' 1111 MW 2 07/24/02 ND<50 ND<0-5 NO—O.5_ ND<0 5 ND<1 ND<D 5 ND<0 5 1 ND<0 5 ND<D 5 ND<5 ND<0 5 ' 111251[12 NO-60 ND<0 5 ND<0 5 N0405 ND<1 1%10<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 NA 02/19/03 ND<50 1413<0 5 ND<0 5 ND<0 5 NDe1 ND<0 5 ND<0 5 ND<0 5 NO<0 5 ND<5 ND<0 5 051p9l03 ND<50 ND<0 5 ND<D 5 ND<0 5 NDN ND<0 5 ND<O 5 ND<0 5 14040 5 ND<5 ND<0 5 09/12/03 1413c50 ND<O 5 NDc0;7 D-O 5 ND<t ND<O 5 ND<0 5 ND<0 5 ND<D 5 ND<5 ND<0 5 12/11103 ND<50 ND<0 5 ND<0 5 ND<0 5 NDc1 11 NO<0 5 I ND<0 5 1 ND<O 5 1 ND<0 5 ND-5 1, ND<0 5 03124/D4 NOT SAMPLED DUMPSTER OVER WELL 06/18/04 ND<50 NO<D 5 ND<O 5 ND<0 5 NDc1 11 1 ND<0 5 ND<0 5 ND<0 5 ND<5 ND<0 5 08119/04 ND<50 ND<0 5 ND<O 5 ND<O 5 ND-1 17 ND<0 5 ND<0 5 ND<0 5 ND<5 ND<0 5 72130!05 ND<5D ND-0 5 ND<0 5 ND<0 5 NDc1 23 N0<0 5 ND<0 5 ND<0 6 NDc5 ND<0 5 03@3105 N0150 ND<0 5 ND<0 5 1`413<0 5 ND<l 29 ND<0 5 ND<o 5 ND<O 5 ND<5 ND<0 5 06129/05 ND<50 ND<0 5 ND<D 5 ND<0 5 NDc1 37 ND10 5 NOcO 5 ND<0 5 ND<5 ND<0 5 09121105 1413c50 ND<0 5 ND<0 5 ND<0 5 ND<l 42 ND<O 5 ND<0 5 14D<0 6 ND-5 NOcO 5 12/30/05 ND-50 ND<O 5 ND<O 5 ND<O 5 ND<7 41 ND<0 5 ND<D 5 11413<0 5 ND<5 ND<0 5 03115!06 ND<50 ND<0 5 ND<O 5 ND<O 5 ND<1 38 ND-0 5 ND<0 5 ND<O 5 ND<5 ND<0 5 MW-3 07124102 ND<60 ND<D 5 ND<0 5 ND<O 5 Nb 11125f02 N13<50 ND<0 6 N1<0 5 ND<O 5 ND<1 Niko 5 ND-0 5 ND<0 5 140<0 5 ND<5 NA 02/19/03 ND<50 ND<0 5 ND<D 5 ND<O 5 ND<1 ND<0 5 N040 5 ND<O 5 ND-06 ND<5 ND<5 ' 05/09103 ND<50 NDc0 5 ND-0 5 ND<0 5 ND<1 ND<0 5 ND<0 6 ND<O 5 ND<0 5 ND<5 NDcD 5 09/17/03 ND<50 ND<0 5 ND<O 5 ND<O 5 ND<1 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 ND<0 6 12/11/03 ND<50 ND<0 5 ND<0 5 NO<0 5 ND<1 ND<0 5 ND<O 5 NDc0 5 ND<0 5 ND<5 ND<0 5 ' 03124!04 ND<50 ND<0 5 No<5 ND<D 5 NDN 06 140<0 5 ND<0 5 ND-05 ND<5 ND<D 5 06!18104 ND<50 ND<0 5 ND<0 5 ND<O 5 ND<1 42 ND<0 5 ND<0 5 ND<0 5 NO<5 110<0 5 08/19/04 ND<50 ND<O 5 ND-0 5 1413<0 5 1%113c1 59 ND<0 5 ND<0 5 ND<0 5 ND<5 ND<0 5 12/30105 1413<50 ND<0 5 ND10 5 ND<O 5 ND11 67 ND<O 5 ND<0 5 ND<0 5 ND<5 ND<O 5 03/23105 ND<50 1413<0 5 ND<0 5 ND40 5 ND<1 60 NDcO 5 NO-05 ND<0 5 ND<5 NDcO 5 06129/05 ND<50 ND<0 5 ND<0 5 ND<0 5 ND<1 57 ND<0 5 ND<0 5 ND40 5 ND<5 ND<0 5 09f21105 ND<50 ND<0 5 N134 5 ND<O 5 ND<l 42 ND<O 5 ND<O 5 ND-05 ND<5 D<06 12/30/05 N13<50 NDcO 5 ND<0 5 ND<O 5 ND<1 28 ND<O 5 ND<0 5 N010 5 ND<5 ND<0 5 1 03/15106 11 ND<50 ND<0 6 ND<O 5 ND<D 5 NO<1 1 7 ND-0 5 ND40 5 ND<0 5 ND45 Nb<0 5 �� } ` J L • NOTES Ail results are reported in micrograms per liter(ugtl)which translates to parts per billion(ppb) M Total Petroleum Hydrocarbons as Gasoline(TPH-G)and benzene toluene ethylbenzene xylenes(BTEX)analyzed by EPA Method 8 02 018 0 1 5M or 82606 , I, �S Oxygenates methyl t butyl ether(MTBE) di isopropyl ether(DIPE) ethyl t butyl ether(ETRE) tart amyl methyl ether(TAME)and tort butanot(TBA) �( analyzed by EPA Method 82609 1 2<llchtoroothane(1 2 OCA)also analyzed by EPA Method 82606 ND<50=Not Detected at reporting limit of 50 ppb NA=Not analyzed for specified compound 7Df1