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<br /> TABLE 1
<br /> GROUNDWATER ELEVATION AND ANALYTICAL DATA
<br /> ARCO Service Station No. 548
<br /> 1612 Hammer Lane,Stockton,California
<br /> Well Elevation Static Top Elevation Groundwater Ethyl- TotaI
<br /> Sample of Top Water of of Flow TPHg Benzene Toluene benzene Xylenes MtBE[1]
<br /> Number Date of Casing Level Screen Groundwater Direction Aga µ9l1 µp/1 Aga 1494 994 Observations
<br /> VW-4 1214/02 NP NM 2751 •• NE 94 <0.5 1.8 0.53 23 39 No FP,No S,No O
<br /> (cont)
<br /> VW-5S 12/30/98 NM Well not located Inaccessible because of soil stockpiles
<br /> 3/31/99 NM NM -- -- Not scheduled for sampling No FP,Yes S,Yes O
<br /> 6/28/99 NM Dry -- - Not scheduled for sampling NM
<br /> 9/10/99 NM 14.63 -- -- Not scheduled for sampling No FP,No S,No O
<br /> I2/13/99 NM 14.64 -- Not scheduled for sampling No FP,No S,No O
<br /> 3/28100 NM 14,56 -- Not scheduled for sampling No FP,No S,No O
<br /> 6126/00 NM DRY -- Not scheduled for sampling No FP,No S,No O
<br /> 9128/00 NM DRY -- Not scheduled for sampling No FP,No S,No O
<br /> 12/18/00 NM 11.48 -- E Not scheduled for sampling No PP,No S,No O
<br /> 3114/01 NM 10.44 -- E Not scheduled for sampling No PP,No S,No O
<br /> 6119101 NM 14.23 -- E Not scheduled for sampling No FP,No S,No O
<br /> 9111101 NM 13.87 E Not scheduled for sampling No PP,No S,No O
<br /> 12/13/01 NM DRY - E-NE Not scheduled for sampling No FP,No S,No O
<br /> 3112102 [NP] NM 9.75 -- E <50 <0.50 <0.50 <0.50 <0.50 <0.50[2] No FP,No S,No O
<br /> 6/17102 [NP] NM 13.07 -- E 190[3] <0.50 <0.50 <0.50 6.3 0.53[2] No FP,No S,No O
<br /> 919/02 NP NM 12.73 -- NE <50 <0.5 <0.5 <0.5 <0.5 <0.5 No FP,No S,No O
<br /> 1214/02 NP NM 8.67 NE <50 <0.5 <0.5 <0.5 <0.5 <0.5 No FP,No S,No O
<br /> VW-51) 12/30/98 NM Well not located Inaccessible because of soil stockpiles
<br /> 3/31/99 NM 25.65 -- E-SE Not scheduled for sampling No FP,Yes S,Yes O
<br /> 6128199 NM 26.74 -- SE Not scheduled for sampling No FP,No S,No O
<br /> 9/10/99 NM 29.00 -- E Not scheduled for sampling No PP,No S,No O
<br /> 12/13/99 NM 28.20 -- E Not scheduled for sampling No FP,No S,No O
<br /> 3/28/00 NM 24.97 -- SE Not scheduled for sampling No FP,No S,No O
<br /> 6126/00 NM 29.81 -- E Not scheduled for sampling No FP,No S,No O
<br /> 9/28100 NM 28.31 -- E-NE Not scheduled for sampling No FP,No S,No O
<br /> 12/18/00 NM -- -- E Not scheduled for sampling Yes FP,Yes S,Yes O
<br /> 3/14/01 NM 25.00 E Not scheduled for sampling Yes FP
<br /> 6/19/01 NM 24.95 E Not scheduled for sampling No FP,No S,Yes O
<br /> 9/11/01 NM 28.00 -- E Not scheduled for sampling No FP,No S,Yes O
<br /> 12/13/01 NM 28.42 -- E-NE 54,000 840 2,300 1,100 17,000 67[2j No FP,No S,No O
<br /> 0549 QMR4Q02
<br /> 9 of 10
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