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TABLE 1
<br /> GROUNDWATER MONITORING DATA
<br /> ARCO Service Station No. 548
<br /> 1612 Harnmer 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 E1] Observations
<br /> MW-2 (61) 02/15/95 9.82 40.67 47.00 -30.85 E <50 <0.5 <0.5 0.50 <0.5 NA No FP,No S,No O
<br /> (61) 05/12/95 9.82 38.85 -29.03 E <50 <0.5 <0.5 <0.5 <0.5 NA No FP,No S,No O
<br /> (61) 08/29/95 9.82 40.44 -30.62 E *<52 <0.5 <0.5 1.0 <0.5 NA No FP,No S,No O
<br /> (61) 12/04/95 9.82 39.08 -29.26 E *<60 <0.5 <0.5 <0.5 <0.5 NA No FP,No S,No O
<br /> 02/02/96 9.82 37.09 -27.27 E <50 <0.5 <0.5 <0.5 <0.5 NA No FP,No S,No O
<br /> (61) 05/10/96 9.82 34.55 -24.73 E <50 <0.5 <0.5 <0.5 <0.5 <3 No FP,No S,No O
<br /> (61) 08/29/96 9.82 36.29 -26.47 E **<60 <0.5 <0.5 <0.5 <0.5 <3 No FP,No S,No O
<br /> (61) 11/20/96 9.82 35.25 -25.43 E <50 0.5 <0.5 <0.5 <0.5 <3 No FP,No S,No O
<br /> (61) 03/19/97 9.82 31.52 -21.70 E-SE <50 0.6 <0.5 <0.5 <0.5 <3 No FP,No S,No O
<br /> 05/27/97 9.82 31.79 -21.97 E-SE <50 1.2 <0.5 <0.5 <0.5 <3 No FP,No S,No O
<br /> (60). 08/12/97 9.82 33.18 -23.36 E 52 <0.5 <0.5 <0.5 <0.5 <5 No FP,No S,No O
<br /> (61) 11/18/97 9.82 32.88 -23.06 E <50 2.6 1.4 0.65 1.5 <5 No FP,No S,No O
<br /> (60) 02/16/98 9.82 29.48 -19.66 SE <50 <0.5 <0.5 <0.5 <0.5 <5 No FP,No S,No O
<br /> (60) 06/23/98 [P] 9.82 26.98 -17.16 SE <50 <0.5 <0.5 <0.5 <0.5 <5 No FP,No S,No O
<br /> (60) 09/29/98 [P] 9.82 28.78 -18.96 E <50 <0.5 <0.5 <0.5 <0.5 <5 No FP,No S,No O
<br /> (60) 12/30/98 [P] 9.82 26.53 -16.71 SE <50 <0.5 <0.5 <0.5 <0.5 <5 No FP,No S,No O
<br /> (60) 03/31/99 [P] 9.82 25.11 -15.29 E-SE <50 <0.5 <0.5 <0.5 <0.5 <5 No FP,No S,No O
<br /> (60) 06/28/99 [P] 9.82 26.25 -16.43 SE <50 <0.5 <0.5 <0.5 <0.5 <5 No FP,No S,No O
<br /> (60) 09/10/99 [P] 9.82 28.28 -18.46 E <50 <0.5 <0.5 <0.5 <0.5 <5 No FP,No S,No O
<br /> (60) 12/13/99 [P] 9.82 27.35 -17.53 E <50 <0.5 <0.5 <0.5 <0.5 3.48 No FP,No S,No O
<br /> (60) 03/28/00 [P] 9.82 24.07 -14.25 SE <50 <0.5 <0.5 <0.5 <0.5 <2.5 No FP,No S,No O
<br /> (61) 06/26/00 [P] 9.82 25.12 -15.30 E <50 <0.5 <0.5 <0.5 <0.5 <2.0[2] No FP,No S,No O
<br /> 09/28/00 [P] 9.82 27.68 -17.86 E-NE <50 <0.5 <0.5 <0.5 <0.5 <2.5 No FP,No S,No O
<br /> 12/18/00 [P] 9.82 26.29 -16.47 E <50 <0.5 <0.5 <0.5 <0.5 <2[2] No FP,No S,No O
<br /> 03/14/01 [P] 9.82 25.00 -15.18 E <50 <0.5 <0.5 <0.5 <0.5 <5.0 No FP,No S,No O
<br /> CAARC0\05481QTRLY1200010548 Quarterly Data.XLS Delta
<br /> 2 of 10 1130/01
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