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! ! ! <br /> Table 9 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station No 5469 <br /> 130 S Wilson Way, Stockton, CA <br /> TOC Depth to Water Level Ethyl- Total <br /> Well Date P! Elevation Water Elevation GRO DRQ Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP ' (feet msl) (feet bgs) (feetms]) (pg/L) (pg1L) (pg1L) (Ng/L) (Ng1L) (pg1L) (pg/L) (mg/L) Comments <br /> MW-1 0311612005 P 1628 4445 -28 17 <50 -- <0 50 <0 50 1 <0 50 <0 50 60 13 <br /> MW-2 0311612005 P 15 88 43 95 T -28 07 <50-7--- _ <D 50 <0 50 i <0 50 <0 50 <050 21 <br /> MW-3 03/1612005 P 15 93 44 00 �� -28 D7 <50 -- <050 <0 5D <0 50 L <0 50 J_ 21 _1__ 1 2 <br /> MW-4 03/1612005, P ' 1622 4442 -28 20 3,900 -- 160 <10 <10 <10 4,600 _07 <br /> MW5 03116/2005 P 1601 4422 -2821 28D -- I <2 5 <25 <2 5 <2 5 18D 20 <br /> MW-6 03116/2005 P 1589 4404 -2815 1,800 -- <10 I <10 i <10 j <10 1 1,500 1 11 <br /> MW-7 0311612D05, P 1649 4473 j -2824 <50 -- <D50 <0 50 <0 50 <0 50 <0 50 67 <br /> i <br /> MW-8 03116/2005 P 1646 4467 -2821 27,000 -- 600 <100 <14D <100 23,000 08 <br /> MW-9 03/16/2005 P 1621 j 44 65 -28 44 <50 -- <0 50 <0 50 <0 50 <0 50 r 054 64 <br /> MW-10 03/16/2005 P 1640 4460 j -2820 90 -- 11 <0 5D <0 50 <050 64 42 <br /> Notes <br /> GRO=Gasoline range organics <br /> DRO=Diesel range organics <br /> MtBE=Methyl tert-butyl ether <br /> DO=Dissolved oxygen <br /> ft=feet <br /> bgs=below ground surface <br /> msl=mean sea level <br /> TOC=top of casing <br /> ug/L=micrograms per liter <br /> mglL=millograms per liter <br /> P/NP=purged/not purged <br /> <=below given laboratory detection limit <br /> --=not measured or analyzed <br /> Note Histoncal groundwater monitonng and chemical analytical data back to 2000 are included in Appendix D <br /> Report Date April 29,2005 Pagel of 1 <br />