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TAIN 1 • <br /> GROUNDWATER ELEVATION DATA AND ANALYTICAL SUMMARY <br /> Former Apache Plastics Facility <br /> Stockton, California <br /> Depth to Well Groundwater Ethyl- Total <br /> Date Water Elevation Elevation TPHG MTBE TBA 1,2-DCA Benzene Toluene benzene Xylenes <br /> WELL# Collected (ft b s) (ft ms]) (ft ms]) (mg/L) (pg/L) (µg/L) (pg/L) (µglL) (µg/L ) (u ) <br /> MW-1 U 5118/01 43 13 1803 -25 10 7 3 <4 0* <200* 290 660 160 110 660 <br /> MW-2 U 5/18/01 43 17 18 13 -25 04 <025* <1 0* <50* 180 <1 0* <1 0* <1 0* <1 0* <br /> MW-4 U 5/18101 41 70 1664 -2506 <0 05 <0 5 <10 <1 0 <0 5 093 <0 5 <0 5 <br /> MW-5 U 5118101 4397 18 94 -25 03 045 066 <10 40 3 0 066 16 3 15 <br /> MW-6 U 5118101 43 68 1856 -25 12 <0 05 <0 5 <10 9 1 <05 <0 5 <0 5 <0 5 <br /> MW-7 U 5118/01 4335 1846 -2489 <0 05 <0 5 <10 <1 0 <0 5 <0 5 <0 5 <0 5 <br /> MW-8 L 5118/01 4297 17 89 -2508 26 <10* <500* <25* 3,200 2,200 870 1,890 <br /> MW-9 L 5118101 4328 1827 -2501 210 <200* <10,000* <500* 20,000 44,000 3,100 17,500 <br /> MW-10 L 5/18/01 4340 1840 -25 00 <0 05 <0 5 70 39 090 <0 5 <0 5 <0 5 <br /> MW-1 I L 5118101 4267 1769 -2498 <0 05 <0 5 <10 <1 0 <0 5 <0 5 <0 5 <0 5 <br /> MW-12 L 5118/01 5038 1767 -3271 <0 05 <0 5 <10 <1 0 <0 5 17 <0 5 1 81 <br /> *=Reporting limits were increased due to high concentrations of target analytes <br /> TPHG=Total petroleum hydrocarbons as gasoline <br /> TBA=Tertiary butyl alcohol <br /> MTBE—Methyl tertiary butyl ether <br /> 1,2-DCA=1,2-13ichloroethane <br /> U=Screened in upper water bearing zone <br /> L=Screened in lower water bearing zone <br /> apache-table sod&gw 072001 As page 1 of 1 <br /> i <br />