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Tabl� • <br /> Groundwater Monitoring Data <br /> 1995 to Present <br /> ARCO Service Station No 548, 1612 Hammer sane, Stockton, California <br /> Well Elevation StAhe Top Elei ation Groundwater <br /> Sample of Top Water of of Flom Ethyl- Total <br /> Number Date of Casirig Level Screen Groundwater Dlreltlon TPHG Benzene Toluene benzene Xylenes MTBE III Observations <br /> VW-4 (42) 09/29/98 [NP] NM 2935 E 328 171 <0 5 1 10 6 12 2,560 No FP,No S,Yes O <br /> VW-4 (42) 12/30/98 [NP] NM 2720 -- SE 972 <0 5 0 562 <0 5 0 746 2,240 No FP,No S,No O <br /> VW-4 03/31/99 NM 25 81 -- E-SE Not scheduled for s►mplmg No FP,No S,No O <br /> VW-4 06/28/99 NM 2694 -- SE Not scheduled for sampling No FP,No S,O=NE <br /> VW-4 09/10/99 NM 2900 -- E Not scheduled for sampling No FP,No S,O=NE <br /> VW-4 12/13/99 NM 28 12 E Not scheduled for sampling No FP,No S,O=NE <br /> VW-4 03/28/00 NM 2489 SL Not scheduled for sampling No FP,No S,O=NE <br /> VW-4 06/26/00 NM 2988 F Not scheduled for sampling No FP,No S,O=NE <br /> VW-5S 12/30/98 NM Well not located -- hiaccessible because of soil stockpiles <br /> VW-5S 03/31/99 NM NM - -- Not scheduled for sampling No FP, Yes S, Yes O <br /> VW-5S 06/28/99 NM Dry -- Not scheduled for sampling NM <br /> VW-5S 09/10/99 NM 1463 -- Not scheduled for sampling No FP,No S,O=NE <br /> VW-5S 12/13/99 NM 1464 -- Not scheduled for sampling No FP,No S,O=NE <br /> VW-5S 03/28/00 NM 1456 -- Not scheduled for sampling No FP,No S,O=NE <br /> VW-58 06/26/00 NM DRY -- Not scheduled for sampling <br /> C 1ARCO\05481QTRLY10548y200 xis Delta <br /> Page 8 of 9 9/20100 <br />