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�■s ■rr� � r■i r�r r w� � r■s � � � ar � arr 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 ETBE TAME TBA 1,2-DCA �08 8-1 02/03/01 120 24 ND<O 5 52 15 68 N0<0 5 ND<O 5 ND<O 5 ND<5 NA B-2 02/03/01 36,000 1,700 4,600 1,400 5,900 25 ND<S ND<5 ND<5 ND<50 NA B-3 02/03/01 ND<50 ND<0 5 ND<0 5 ND<O 5 N0<0 5 ND<O 5 N0<0 5 ND<O 5 ND<O 5 ND<5 NA MW-1 07124/02 27,000 1,800 4,300 1,600 5,200 45 ND<5 ND<5 N0<5 ND<50 N0<5 NAGS 11125/02 25,000 1,000 2,400 1,200 3,700 19 ND<O 5 ND<O 5 ND<O 5 ND<5 NA 02/19/03 18,000 1,200 1,300 1,000 3,200 ND<5 ND<5 ND<5 ND<5 ND<50 ND<5 i 05/09/03 11,000 880 430 980 2,600 ND<5 ND<5 ND<5 ND<5 ND<50 ND<5 09/12/03 21,000 1,200 79 1,300 4,400 15 ND<5 ND<5 ND<5 N0<50 ND<5 1L 12/11/03 15,000 1,900 170 1,800 4,600 20 ND<s ND<5 ND<5 ND<50 ND<5 11111P<5 MW-2 07/24/02 ND<50 ND<O 5 ND<O 5 ND<o 5 ND<1 ND<O 5 ND<O 5 ND<0 5 ND<O 5 ND<5 ND<0 5 uDSO. 11125/02 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<O 5 ND<1 ND<O 5 ND<0 5 ND<O 5 ND<O 5 ND<5 ND<0 5 05/09/03 ND<50 ND<O 5 ND<0 5 ND<O 5 ND<1 ND<0 5 ND<0 5 ND<O 5 ND<O 5 ND<5 ND<0 5 09/12/03 ND<50 ND<0 5 ND<0 5 ND<O 5 ND<1 ND<0 5 ND<0 5 ND<o 5 ND<O 5 N0<5 N0<0 5 12/11103 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<1 N0<05 ND<O 5 ND<O 5 ND<O 5 ND<5 ND<0 5 O,S MW-3 07/24/02 ND<50 ND<O 5 ND<0 5 ND<O 5 ND<1 ND<0 5 ND<O 5 ND<O 5 ND<O 5 ND<5 ND<O 5 A00S 11/25/02 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<1 ND<0 5 ND<O 5 ND<O 5 ND<O 5 ND<5 NA 02/19/03 140<50 ND<O 5 ND<0 5 ND<O 5 ND<t ND<0 5 ND<0 5 ND<O 5 ND<0 5 ND<5 ND<O 5 05/09/03 ND<50 ND<0 5 ND<O 5 ND<O 5 ND<1 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 ND<O 5 09112103 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<1 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 ND<O 5 12/11/03 ND<50 N0<0 5 ND<O 5 ND<O 5 ND<1 ND<O 5 ND<O 5 ND<0 5 ND<O 5 ND<5 ND<0 5 L 0•S NOTES All results are reported in micrograms per liter(ugll),which translates to parts per billion(ppb) V�.'}► Total Petroleum Hydrocarbons as Gasoline(TPH-G)and benzene,toluene,ethylbenzene,xylenes(BTEX)analyzed by EPA Method 8020/8015M or 8260E �L Oxygenates methyl-t-butyl ether(MTBE),di-isopropyl ether(DIPE),ethyl-t-butyl ether(ETRE) tert-amyl methyl ether(TAME)and tent-butanol(TBA)analyzed by EPA Method 8260B 1 2-dichloroethane(1,2-DCA)analyzed by EPA Method 8260E ND<50=Not Detected at reporting limit of 50 ppb NA =Not analyzed for specified compound