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M lo= 101 am" 40- 1 r go IM, Im so on W M4r M TABLE 2 (Continued) CUMULATIVE ANALYTICAL RESULTS - GROUNDWATER Former Stefano's Gas Station Site, 1419 East Charter Way, Stockton, California OXYGENATES DATE ETHYL- WELL ID SAMPLED TPH-G BENZENE TOLUENE BENZENE XYLENES MTBE DIPE ETRE TAME TBA 1,2-DCA MW-4 11/01/01 ND<50 ND<O 5 ND<D 5 ND<O 5 ND<0 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 ND<O 5 01/31/02 ND<50 ND<O 5 ND<O 5 ND-40 5 ND<0 5 ND<O 5 ND<O 5 N0<0 5 ND<0 5 N0<5 ND<O 5 05/06/02 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 ND<O 5 07/29/02 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 ND<O 5 MW-5 11101101 ND<50 ND<o 5 ND<0 5 ND<0 5 N0<0 5 ND<0 5 ND<O 5 ND<O 5 ND<O 5 ND<5 ND<O 5 01/31/02 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<0 5 ND<O 5 N0<5 ND<O 5 05/06/02 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 N0<0 5 ND<O 5 ND<5 ND<O 5 07/29/02 ji ND<50 N0<0 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<0 5 ND<O 5 ND<5 ND<o 5 MW-6 11/01/01 ND<50 ND<o 5 ND<0 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 ND<D 5 01/31/02 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<0 5 ND<O 5 ND<0 5 ND<D 5 ND<5 ND<O 5 05106/02 ND<50 ND<O 5 ND-4D 5 ND<0 5 ND<O 5 ND<O 5 ND<0 5 ND<O 5 ND<O 5 ND<5 ND<0 5 07!29102 ND<50 ND<0 5 ND<O 5 ND<D 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 ND<D 5 MW-7 11/01/01 N0<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<0 5 ND<0 5 ND<O 5 ND<O 5 ND<5 ND<O 5 01/31/02 ND<50 ND<O 5 ND<O 5 N0<0 5 ND<O 5 N0<0 5 ND<0 5 ND<0 5 ND<O 5 ND<5 ND<0 5 05/06/02 ND<50 ND<0 5 ND<0 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<5 ND<0 5 07/29/02 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<O 5 ND<0 5 ND<0 5 ND<O 5 ND<0 5 ND<5 1413<0 5 I Notes All results exoept are reported In microgramsAtter which translates to parts per billion(ppb) Total Petroleum Hydrocarbons as Gasoline(TPH-G)analysis by EPA Method 8260B Benzene,toluene,ethylbenzene and xylenes analysis by EPA Method 82605 Oxygenates Methyl-t-butyl ether(MTBE),Dnsopropyl ether(DIPS),Ethyl-t-butyl ether(ETRE) Tert-amyl methyl ether(TAME)and Tert-Butanol(TBA)by EPA 82608 1,2-Dlchloroethane(1,2-DCA)analyzed by EPA Method 8260B ND<50=Not Detected at reporting limit of 50 ppb NA =Not analyzed for specified compound