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TABLE 2 CUMULATIVE ANALYTICAL RESULTS-GROUNDWATER San Joaquin County Courthouse 222 E Weber Avenue,Stockton California OXYGENATES SAMPLE DATE11 ETHYL- CDB LOCATION SAMPLED TPH-G BENZENE TOLUENE BENZENE XYLENES MTBE DIPS ETBE TAME TBA 1,2-DCA h ' B-1 02/03101 120 24 ND<O 5 52 1 5 68 ND<O 5 ND<O 5 ND<O 5 ND<5 NA B-2 02103!01 36,000 1,700 4,600 1,400 5,900 25 ND<5 ND<5 ND<5 ND<50 NA B-3 02!03!01 ND<50 ND<0 5 ND<O 5 ND<O 5 ND<0 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 NA MW-1 07/24102 27,000 1,800 4,300 1,600 5,200 45 ND<5 ND<5 ND<5 ND<50 ND<5 ADDS 11!25102 25,000 1,000 2,400 1,200 3,700 19 ND<O 5 ND<O 5 ND-0 5 ND<5 NA 02!19103 18,000 1,200 1,300 1,000 3200 ND<5 ND<5 ND<5 ND<5 ND<50 ND<5 05109/03 11,000 880 430 980 1 2,500 ND<5 I ND<5 ND<5 ND<5 ND<50 ND<5 09/12103 21,000 1,200 79 1,300 4,400 15 ND<5 ND<5 ND<5 ND<50 ND<5 ' 12/11103 15,000 1,900 170 1,800 4,600 20 ND<5 ND<5 ND<5 ND<50 ND<5 Nc�cS 03124104 29,000 1 1,900 280 2,000 1 6,800 13 ND<5 14D<5 ND<5 ND<50 ND<5 06!18!04 L11,000 710 35 940 2,600 10 ND<5 ND<5 ND<5 ND<50 ND<5 MW-2 07124!02 ND<50 ND<O 5 ND<O 5 ND<0 5 ND<l ND<O 5 ND<0 5 ND<O 5 ND<O 5 ND<5 N D-0 5 1fDra 5 11/25102 ND<50 ND-0 5 ND<O 5 ND<0 5 ND<1 ND<O 5 ND<O 5 ND<0 5 ND<0 5 ND<5NA 02!19103 N0<50 ND<O 5 ND<O 5 ND<O 5 ND<1 ND<0 5 ND<0 5 ND-0 5 ND<O 5 ND<5 D<0 5 05109103 ND<50 ND<0 5 ND<O 5 ND<O 5 ND<1 ND<0 5 NO<0 5 ND<O 5 ND<O 5 ND<5 5 09112!03 ND<50 ND-0 5 ND<O 5 ND<O 5 ND<1 ND<O 5 ND<0 5 N0<0 5 ND<O 5 ND<5 ND<O 5 12/11103 ND<50 ND<O 5 ND<O 5 1%113<0 5 ND<1 ND<O 5 i ND<0 5 ND<0 5 ND<0 5 ND<5 ND<O 5 N� <a S 03!24104 NOT SAMPLED-DUMPSTER OVER WELL 06118!04 ND<50 I ND<O 5 ND<O 5 1 ND<d 5 ND<1 1 1 ND<O 5 ND<0 5 ND<O 5 ND<5 ND-0 5 JV Q MW-3 07124!02 ND<50 ND<0 5 ND<0 5 ND<O 5 ND<1 ND<O 5 ND<O 5 ND<O 5 ND<0 5 ND-5 ND<0 5 1<0-5 11125102 ND<50 ND<O 5 ND<O 5 ND<0 5 ND<1 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 NA 02!19103 ND<50 ND<O 5 ND<O 5 ND<0 5 ND<1 ND<0 5 ND<O 5 ND<0 5 ND<O 5 ND<5 ND<0 5 05109!03 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<1 I ND<O 5 ND<O 5 ND<0 5 i ND<O 5 ND<5 ND<O 5 09/12103 ND<50 ND<O 5 ND<0 5 ND<O 5 ND<1 ND<0 5 ND<O 5 ND<O 5 NO<0 5 ND<5 ND<0 5 12!11/03 ND<50 ND<O 5 ND<05 ND<O 5 ND<1 ND<O 5 ND<0 5 ND<O 5 ND<0 5 ND<5 ND<0 5 fa,5- 03!24104 ND<50 ND<0 5 ND<O 5 ND<0 5 ND<1 or) ND<O 5 ND<0 5 ND<O 5 ND<5 1111<0 5 06118!04 ND<50 ND<O 5 ND<O 5 1 ND<0 5 ND<1 42 1 ND<0 5 ND<O 5 1 ND<0 5 ND<5 ND<0 5 NOTES All results are reported in micrograms per liter(ugn) which translates to parts per billion(ppb) Total Petroleum Hydrocarbons as Gasoline(TPM-G)and benzene toluene ethylbenzene xylenes(BTEX)analyzed by EPA Method 8020/8015M or 8260B Oxygenates methyl-t-butyl ether(MTBE) di-isopropyl ether(DIPS) ethyl-t-butyl ether(ETBE) tert-amyl methyl ether(TAME)and tent-butanol(TBA)analyzed by I 1 2-dichloroethane(1 2-DCA)analyzed by EPA Method 82608 v K ND<50=Not Detected at reporting limit of 50 ppb ' NA =Not analyzed for specified compound U i 1 0