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I
<br /> TABLE I
<br /> r•
<br /> GROUNDWATER MONITORING DATA
<br /> Former ARCO Service Station No. 548
<br /> 1.612 Hammer Lane,Stockton, California
<br /> Well Elevation Static Top Elevation Groundwater
<br /> Sample of Top Water of of Flow Ethyl- Total
<br /> Number Date of Casing Level Screen Groundwater Direction TPHG Benzene Toluene benzene X lenes MTBE [1] Observations
<br /> VW-3 (40) 9/29/98 [NP] NM 29.45 22.00 -- E 39,300 2,360 391 1,540 9,790 <500 No FP,No S,Yes O
<br /> (40) 12/30/98 [NP] NM 27.28 -- SE 40,500 3,450 287 2,370 11,700 <500 No FP,No S,Yes O j
<br /> 3/31/99 NM 25.87 -- E-SE Not scheduled for sampling No FP,No S,No O
<br /> 6/28/99 NM 26.88 -- SE Not scheduled for sampling No FP,No S,No O
<br /> 9/10/99 NM 28.89 -- E Not scheduled for sampling No FP,No S,No O
<br /> 12/13/99 NM 28.06 -- E Not scheduled for sampling No FP,No S,No O
<br /> 3/28/00 NM 24.88 -- SE Not scheduled for sampling No FP,No S,No O
<br /> 6/26/00 NM 29.78 -- E Not scheduled for sampling No FP,No S,No O
<br /> 9/28/00 NM 28.30 -- E-NE Not scheduled for sampling No FP,No S,No O
<br /> 12/18/00 NM 26.08 -- E Not scheduled for sampling No FP,No S,No O
<br /> 3/14/01 NM 24.20 -- E Not scheduled for sampling No FP,No S,No O
<br /> 6/19101 NM 26.50 -- E Not scheduled for sampling No FP,No S,No O
<br /> 9/11/01 NM 29.02 -- E Not scheduled for sampling No FP,No S,No O
<br /> 12/13/01 [NP] NM 28.35 -- E-NE 1,100 150 <5.0 7.6 16 16[2] No FP,No S,No O
<br /> VW4 (42) 9/29/98 [NP] NM 29.35 24.00 -- E 328 1.71 <0.5 1.10 6.12 2,560 No FP,No S,Yes O
<br /> (42) 12/36/98 [NP] NM 27.20 -- SE 97.2 <0.5 0.562 <0.5 0.746 2,240 No FP,No S,No O
<br /> 3/31/99 NM 25.81 -- E-SE Not scheduled for sampling No FP,No S,No O
<br /> 6/28/99 NM 26.94 -- SE Not scheduled for sampling No FP,No S,No O
<br /> 9/10199 NM 29.00 -- E Not scheduled for sampling No FP,No S,No O
<br /> 12/13/99 NM 28.12 -- E Not scheduled for sampling No FP,No S,No O
<br /> 3/28/00 NM 24.89 -- SE Not scheduled for sampling No FP,No S,No O
<br /> 6/26/00 NM 29.88 -- E Not scheduled for sampling No FP,No S,No O
<br /> 9/28/00 NM 28.39 -- E-NE Not scheduled for sampling No FP,No S,No O
<br /> 12/18/00 NM 26.19 -- E Not scheduled for sampling No FP,No S,No O
<br /> 3/14/01 NM 24.87 -- E Not scheduled for sampling No FP,No S,No O
<br /> 6119/01 NM 26.28 -- E Not scheduled for sampling No FP,No S,No O
<br /> 9111/01 NM 29.13 -- E Not scheduled for sampling No FP,No S,No O
<br /> 12/13/01 [NP] NM 28.50 -- E-NE <50 <0.50 <0.50 <0.50 '<0.50 100[2] No FP,No S,No O
<br /> Arco fl548_Quarterly_Data.XLS
<br /> 8 of 10 Delta
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