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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 III Observations
<br /> MW-6 (58) 2115/95 8.95 40.02 40..00 -31.07 E <50 <0.5 <0.5 <0.5 <0.5 NA No FP,No S,No O
<br /> (58) 5/12195 8.95 38.26 -29.31 E <50 <0.5 <0.5 <0.5 <0.5 NA No FP,No S,No O
<br /> (59) 8/29/95 8.95 39.91 -30.96 E *<52 <0.5 <0.5 <0.5 <0.5 NA No FP,No S,No O
<br /> (58) 12/4/95 8.95 38.38 -29.43 E *<70 <0.5 <0.5 <0.5 <0.5 NA No FP,No S,No O
<br /> 212/96 8.95 36.38 -27.43 E <50 <0.5 <0.5 <0.5 <0.5 NA No FP,No S,No O
<br /> (59) 5/10/96 8.95 33.88 -24.93 E <50 <0.5 <0.5 <0.5 <0.5 <3 No FP,No S,No O
<br /> (59) 8/29196 8.95 35.66 -26.71 E <50 <0.5 <0.5 <0.5 <0.5 <3 No FP,No S,No O
<br /> (59) 11/20/96 8.95 34.57 -25.62 E <50 <0.5 <0.5 <0.5 <0.5 <3 No FP,No S,No O
<br /> (57) 3/19/97 8.95 30.83 -21.88 E-SE <50 <0.5 <0.5 <0.5 <0.5 <3 No FP,No S,No O
<br /> 5/27/97 8.95 31.16 =22.21 E-SE <50 <0.5 <0.5 <0.5 <0.5 <3 No FP,No S,No O
<br /> (59) 8/12/97 8.95 32.55 -23.60 E <50 <0.5 <0.5 <0.5 <0.5 <5 No FP,No S,No O
<br /> (57) 11/18/97 8.95 32.19 -23.24 E 54 5.9 5.8 1.6 9.2 <5 No FP,No S,No O
<br /> (57) 2/16/98 8.95 28.83 -19.88 SE <50 <0.5 <0.5 <0.5 <0.5 <5 No FP,No S,No O
<br /> (57) 6123/98 [P] 8.95 26.36 -17.41 SE <50 <0.5 <0.5 <0.5 <0.5 <5 No FP,No S,No O
<br /> (57) 9/29/98 [P] 8.95 28.19 -19.24 E <50 <0.5 <0.5 <0.5 <0.5 <5 No FP,No S,No O
<br /> (59) 12/30/98 [P] 8.95 25.91 -16.96 SE <50 <0.5 <0.5 <0.5 <0.5 <5 No FP,No S,No O
<br /> (59) 3/31/99 [P] 8.95 24.37 -15.42 E-SE <50 0.623 <0.5 <0.5 <0.5 12.2 No FP,No S,No O
<br /> (59) 6/28/99 [P] 8.95 25.59 -16.64 SE <50 <0.5 <0.5 <0.5 <0.5 18.1 No FP,No S,No O
<br /> (59) 9/10/99 [P] 8.95 27.62 -18.67 E <50 <0.5 <0.5 <0.5 <0.5 17.8 No FP,No S,No O
<br /> (59) 12/13/99 [P] 8.95 26.62 -17.67 E <50 <0.5 <0.5 <0.5 <0.5 9.35 No FP,No S,No O
<br /> (59) 3/28/00 [P] 8.95 23.39 -14.44 SE <50 <0.5 <0.5 <0.5 <0.5 9.01 No FP,No S,No O
<br /> (57) 6126/00 [P] 8.95 24.41 45.46 E <50 <0.5 <0.5 <0.5 <0.5 14[2] No FP,No S,No O
<br /> 9128/00 [P] 8.95 27.00 -18.05 E-NE <50 <0.5 <0.5 <0.5 <0.5 5.31 No FP,No S,No O
<br /> 12/18/00 [P] 8.95 25.66 -16.71 E <50 <0.5 <0.5 <0.5 <0.5 <2[2] No FP,No S,No O
<br /> 3/14/01 [P] 8.95 24.17 -15.22 E <50 <0.5 <0.5 <0.5 <0.5 2.12 No FP,No S,No O
<br /> 6/19/01 [P] 8.95 25.16 -16.21 E <50 <0.5 <0.5 <0.5 <0.5 7.2[2] No FP,No S,No O
<br /> 9/11/01 [P] 8.95 27.69 -18.74 E <50 <0.5 <0.5 <0.5 <0.5 6.8[2] No FP,No S,No O
<br /> 12/13/01 [P] 8.95 26.95 -18.00 E-NE <50 <0.50 <0.50 <0.50 0.73 21[2] No FP,No S,No O
<br /> 3/12/02 [P] 8.95 25.13 -16.18 E <50 <0.50 <0.50 <0.50 <0.50 0.53[2] No FP,No S,No O
<br /> 6/17/02 [P] 8.95 26.22 -17.27 <50 <0.50 <0.50 <0.50 <0.50 7.7[2] No FP,No S,No O
<br /> Arca 6548_Quarterly_DataA S
<br /> 6of10
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