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TABLE 1
<br /> GROUNDWATER MONITORING DATA
<br /> Former ARCO Service Station No. 548
<br /> 1612 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 Xylenes MTBE [11 Observations
<br /> VW-1 (43) 09/29/98 [NP] NM 28.73 -- E 18,806 573 59.0 873 4,120 2,300 No FP,No S,Yes O
<br /> (43) 12/30/98 [NP] NM 26.50 SE 19,200 2,150 <50 691 3,310 785 No FP,No S,Yes O
<br /> 03/31/99 NM 24.97 -- E-SE Not scheduled for sampling No FP,No S,No O
<br /> 06/28/99 NM 25.99 -- SE Not scheduled for sampling No FP,No S,No O
<br /> 09/10/99 NM 28.33 -- E Not scheduled for sampling No FP,No S,No O
<br /> 12/13/99 NM 27.46 -- E Not scheduled for sampling No FP,No S,No O
<br /> 03/28/00 NM 24.23 -- SE Not scheduled for sampling No FP,No S,No O
<br /> 06/26/00 NM 25.11 -- E Not scheduled for sampling No FP,No S,No O
<br /> 09/28/00 NM 27.72 -- E-NE Not scheduled for sampling No FP,No S,No O
<br /> 12/18/00 NM 25.50 -- E Not scheduled for sampling No FP,No S,No O
<br /> 03/14/01 NM 24.33 -- E Not scheduled for sampling No FP,No S,No O
<br /> 06/19/01 NM 25.50 -- E Not scheduled for sampling No FP,No S,No O
<br /> VW-2 (41) 09/29/98 [NP] NM 29.01 -- E 13,200 822 <12.5 1,370 754 <125 No FP,No S,Yes O
<br /> (41) 12/30/98 [NP] NM 27.47 -- SE 81950 778 <20 1,180 339 <200 No FP,No S,Yes O
<br /> 03/31/99 NM 25.21 -- E-SE Not scheduled for sampling No FP,No S,No O
<br /> 06/28/99 NM 26.35 -- SE Not scheduled for sampling No FP,No S,No O
<br /> 09/10/99 NM 29.29 -- E Not scheduled for sampling No FP,No S,No O
<br /> 12/13/99 NM 28.43 -- E Not scheduled for sampling No FP,No S,No O
<br /> 03/28/00 NM 25.24 -- SE Not scheduled for sampling No FP,No S,No O
<br /> 06/26/00 NM 26.10 -- E Not scheduled for sampling No FP,No S,No O
<br /> 09/28/00 NM 28.69 -- E-NE Not scheduled for sampling No FP,No S,No O
<br /> 12/18/00 NM 26.51 -- E Not scheduled for sampling No FP,No S,No O
<br /> 03/14/01 NM 24.40 -- E Not scheduled for sampling No FP,No S,No O
<br /> 06/19/01 NM 25.15 -- E Not scheduled for sampling No FP,No S,No O
<br /> Arco 0548 Quarterly Dala.XLS Delta
<br /> 7 of 10 1i30/01
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