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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- Total
<br /> Sample of Top Water of of Flow TPHg Benzene Toluene benzene Xylenes MtBE[1]
<br /> Number Date of Casing Level Screen Groundwater Direction p /L pg/L pg/L pg/L pg/L pg/L Observations
<br /> VW-4 9/28/2000 NM 28.39 E-NE Not scheduled for sampling No FP, No S, No O
<br /> (cont) 12/18/2000 NM 26.19 -- E Not scheduled for sampling No FP, No S, No O
<br /> 3/14/2001 NM 24.87 -- E Not scheduled for sampling No FP, No S, No O
<br /> 6/19/2001 NM 26.28 - E Not scheduled for sampling No FP, No S, No O
<br /> 9/11/2001 NM 29.13 E Not scheduled for sampling No FP, No S, No O
<br /> 12/13/2001 [NP) NM 28.50 -- E-NE <50 <0.50 <0.50 <0.50 <0.50 100[2] No FP, No S, No O
<br /> 3/12/2002 [NP] NM 26.10 - E <50 <0.50 <0.50 <0.50 <0.50 32[2] No FP, No S, No O
<br /> 6/17/2002 [NP] NM 27.74 - E 59(3] <0.50 <0.50 <0.50 <0.50 98[2] No FP, No S, No O
<br /> 9/9/2002 NP NM 30.28 -- NE 73 <0.5 <0.5 <0,5 <0.5 110 No FP, No 5, No O
<br /> 12/4/2002 NP NM 27.51 -- NE 94 <0.5 1.8 0.53 23 39 No FP, No S, No O
<br /> 3/3/2003 NP NM 26.25 -- SE <50 <0.5 <0.5 <0.5 <0.5 0.88 No FP, No S, No O
<br /> VW-5S 12/30/1998 NM Well not located inaccessible because of soil stockpiles
<br /> 3/31/1999 NM NM -- - Not scheduled for sampling No FP, Yes S, Yes O
<br /> 6/28/1999 NM Dry -- Not scheduled for sampling NM
<br /> 9/10/1999 NM 14.63 -- -- Not scheduled for sampling No FP, No S, No O
<br /> 12/13/1999 NM 14.64 -- -- Not scheduled for sampling No FP, No S, No O
<br /> 3/28/2000 NM 14.56 - -- Not scheduled for sampling No FP, No S, No O
<br /> 6/26/2000 NM DRY -- -- Not scheduled for sampling No FP, No S, No O
<br /> 9/28/2000 NM DRY -- Not scheduled for sampling No FP, No S, No O
<br /> 12/18/2000 NM 11.48 - E Not scheduled for sampling No FP, No S, No O
<br /> 3/14/2001 NM 10.44 -- E Not scheduled for sampling No FP, No S, No O
<br /> 6/19/2001 NM 14.23 -- E Not scheduled for sampling No FP, No S, No O
<br /> 9/11/2001 NM 13.87 - E Not scheduled for sampling No FP, No S, No O
<br /> 12113/2001 NM DRY -- E-NE Not scheduled for sampling No FP, No S, No O
<br /> 3/12/2002 [NP] NM 9.75 E <50 <0.50 <0.50 <0.50 <0.50 <0.50[2) No FP, No S, No O
<br /> 6/17/2002 [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 /> 9/9/2002 NP NM 12.73 NE <50 <0.5 <0.5 <0.5 <0.5 <0.5 No FP, No S, No O
<br /> 12/4/2002 NP NM 8,67 - NE <50 <0.5 <0.5 <0.5 <0.5 <0.5 No FP, No S, No O
<br /> 3/3/2003 NP NM 11.04 -- SE <50 <0.5 <0.5 <0.5 <0.5 <0.5[21 No FP, No 5, No O
<br /> VW-5D 12/30/1998 NM Well not located Inaccessible because of soil stockpiles
<br /> 3/31/1999 NM 25.65 -- E-SE Not scheduled for sampling No FP, Yes S, Yes O
<br /> 6/28/1999 NM 26.74 - SE Not scheduled for sampling No FP, No S, No O
<br /> KAWprocessW5 BP ARC010548\Quarterly\1 QTR 0310548 GWMR 1003
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