ARCHIVED REPORTS_XR0006737 CASE 1

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TABLE 2 ANALYTICAL RESULTS -GROUNDWATER WELLS Former RINO Service Station, 1001 East Yosemite Avenue, Manteca, California OXYGENATES SAMPLE DATE ETHYL- LOCATION SAMPLEDLH-G BENZENE TOLUENE BENZENE XYLENES MTBE DIPE ETBE TAME TBA 1,2-DCA MW4 09!25100 ND<50 09 NO<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<O 5 ND<O 5 ND<5 ND<0 5 12120!00 ND<50 ND<0 5 ND<O 5 ND<0 5 ND<0 5 ND<O 5 ND<0 5 ND<0 5 ND<0 5 ND<5 ND<0 5 03/20/01 ND<50 ND<0 5 NO<0 5 ND<0 5 ND<O 5 ND<O 5 NO<0 5 ND<O 5 ND<0 5 NO<5 ND<0 5 06/08/01 ND<50 NO<0 5 ND<O 5 ND<0 5 ND<0 5 ND<0 5 ND<O 5 ND<O 5 ND<O 5 ND<5 ND<0 5 09/18101 ND<50 ND<O 5 ND<O 5 ND<O 5 ND<0 5 ND<O 5 ND<O 5 ND<0 5 ND<O 5 ND<5 ND<0 5 MW-2 091251DO 330 084 06.6 13 28 160 NO<0 5 ND<0 5 ND<D 5 19 N13<0 5 12/20/00 1,200 26 -15 49 27 160 ND<0 5 ND<O 5 ND<0 5 21 ND<O 5 03!20101 930 49 33 1$ 89 120 ND<O 5 ND<0 5 ND<0 5 17 ND<0 5 06108101 1,100 37 ND<0 5 17 092 56 ND<0 5 ND<0 5 ND<0 5 77 ND<0 5 09/18/01 770 10 ND<O 5 69 ND<0 5 16 ND<O 5 ND<0 5 ND<0 5 ND<5 ND<0 5 MW-3 09/25/00 ND<50 ND<0 5 ND<0 5 ND<O 5 ND<0 5 38 ND<0 5 NO<0 5 ND<O 5 ND<5 ND<0 5 12/20100 ND<50 ND<0 5 ND<O 5 NO<0 5 ND<O 5 09 ND<0 5 ND<0 5 ND<0 5 ND<5 ND<0 5 03/20101 N0<50 ND<0 5 ND<0 5 NO<0 5 ND<0.5.. ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 ND<O 5 06108101 ND<50 ND<0 5 ND<O 5 ND<O 5 NO<0 5 N0<0 5 ND<0 5 ND<O 5 ND<O 5 ND<5 ND<O 5 09118!01 ND<50 ND<O 5 N13<05 ND<0 5 ND<0 5 ND<O 5 ND<0 5 ND<0 5 ND<0 5 ND<5 ND<0 5 MW-0 09/25/00 ND<200 ND<2 ND<2 ND<2 ND<2 2,800 ND<2 NO<2 32 ND<20 ND<2 12/20/00 NO<50 ND<0 5 ND<0 5 ND<O 5 NO<0 5 300 ND<O 5 ND<0 5 ND<0 5 56 ND<0 5 03120101 ND<50 ND<O 5 ND<0 5 ND<0 5 ND<0 5 300 ND<O 5 ND<0 5 058 ND<5 ND<O 5 06/08/01 N0<50 ND<0 5 ND<0 5 NO<0 5 ND<O 5 74 NO<0 5 ND<O 5 ND<0 5 ND<5 ND<0 5 09118!01 ND<50 ND<0 5 ND<0 5 ND<O 5 052 15 1 ND<0 5 ND<0 5 NDaO 5 N0<5 I ND<O 5 ONSITE DW 09/02/99 ND<50 ND<O 5 ND<O 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<0 5 ND<5 NA 09/12/00 NO<50 ND<O 5 NO<0 5 ND<0 5 ND<O 5 ND<0 5 ND<0 5 ND<O 5 ND<0 5 ND<5 ND<0 5 12/20/00 ND-c50 ND<O 5 ND<D 5 ND<O 5 NO<0 5 ND<O 5 ND<O 5 ND<O 5 ND<0 5 ND<5 ND<O 5 03!20!01 ND<50 ND<0 5 ND<0 5 NO<0 5 ND<0 5 ND<O 5 ND<0 5 NO<0 5 ND<0 5 ND<S ND<O 5 06108!01—it ND<50 ND<0 5 1 ND<O 5 1 ND<O 5 ND<O 5 NO<0 5 I NO<0 5 NO<0 5 NO<0 5 ND<5 ND<0 5 09118101 Np<50 ND<0 5 ND<0 5 I NO<0 5 N0<0 5 ND10 5 1 ND<0 5 ND<O 5 ND<0 5 N0<5 ND<0 5 NOTES All results are reported in micrograms per after(ugA)which translates to parts per billion(ppb) Total Petroleum Hydrocarbons as Gasoline(rPH-G) benzene toluene ethylbenzene xylenes by EPA 82606 Oxygenates Methyl t-butyl ether(MTBE) Di-isopropyi ether(DIPS) Ethyl t butyl ether(ETBE),Tert-amyl methyl ether(TAME),and Tert-Butanol(TBA)by EPA 82606 1 2-drehloroethans(1 2 DCA)by EPA Method 82608 ND<50=Not Detected at reporting limit of 50 ppb NA =Not Analyzed for specified compound