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TABLE 1
<br /> GROUNDWATER ELEVATION AND ANALYTICAL DATA
<br /> ARCO Service Station No. 548
<br /> 1612 Hammes Lane,Stockton,California
<br /> Well Elevation Static Top Elevation Groundwater
<br /> Sample of Top Water of of Flow Ethyl- Total
<br /> Number pate of Casing Level Screen Groundwater Direction TPHg Benzene Toluene benzene Xylenes MtBE[1] Observations
<br /> MW-2 (61) 12/4/1995 9.82 39.08 -29.26 E *<60 <0.5 <0.5 <0.5 <0.5 NA No FP,No S,No O
<br /> (cont.) 2/2/1996 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) 5/10/1996 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) 8/29/1996 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) 11/20/1996 9.82 35.25 -25.43 E <50 0.5 <0.5 <0.5 <0.5 <3 No FP,No S,No O
<br /> (6I) 3/19/1997 9.82 31.52 -21.70 USE <50 0.6 <0.5 <0.5 <0.5 <3 No FP,No S,No O
<br /> 5/27/1997 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) 8/12/1997 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) 11/18/1997 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) 2/16/1998 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) 6/23/1998 [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) 9/29/1998 [P] 9.82 28.78 -18.96 E <50 <0.5 <0.5 <0.5 <0.5 <5 No PP,No S,No O
<br /> (60) 12/30/1998 [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) 3/31/1999 [P] 9.82 25,11 -15.29 USE <50 <0,5 <0.5 <0.5 <0.5 <5 No FP,No S,No O
<br /> (60) 6/28/1999 [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) 9/10/1999 [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) 12/13/1999 [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) 3/28/2000 [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) 6/26/2000 [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 /> 9/28/2000 [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 /> 12/18/2000 [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 /> 3/14/2001 [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 /> 6/19/2001 [P] 9.82 25.88 -16.06 E <50 <05 <0.5 <0.5 <0.5 <2[2] No FP,No S,No O
<br /> 9/11/2001 [P] 9.82 28.41 -18.59 E <50 <0.5 <0.5 <0.5 <0.5 <2[2] No FP,No S,Yes O
<br /> 12/13/2001 [P] 9.82 27.70 -17.88 UNE <50 <0.50 <0.50 <0.50 <0.50 1.3[2] No FP,No S,Yes O
<br /> 3/12/2002 [P] 9,82 26,01 -16,19 E <50 <0.50 <0.50 <0.50 <0.50 1.6[2] No FP,No S,Yes O
<br /> 6/17/2002 [P] 9.82 26.98 -17.16 E <50 <0.50 <0.50 <0.50 <0.50 1.4(2] No FP,No S,No O
<br /> 9/9/2002 P 9.82 29,84 -20.02 NE <50 <0.5 <0.5 <0.5 <0.5 1.6 No FP,No S,No O
<br /> MW-3 (62) 2/15/1995 9.95 40.69 43.00 -30.74 E **84 <0.5 <0.5 <0.5 <0.5 NA No FP,No S,No O
<br /> (62) 5/12/1995 9.95 38.80 -28.85 E *' 100 <0.5 <0.5 <0.5 <0.5 NA No FP,No S,No O
<br /> (62) 8/29/1995 9.95 40.27 -30.32 E *470 <0.5 <0.5 <0.5 <0.5 NA No FP,No S,No O
<br /> (62) 12/4/1995 9.95 39.06 -29.11 E *<150 <0.5 <0.5 <0.5 <0.5 NA No FP,No S,No O
<br /> 2/2/1996 9.95 37.10 -27.15 E *<100 <0.5 <0.5 <0.5 <0.5 NA No FP,No S,No O
<br /> (62) 5/10/1996 9.95 34.53 -24.58 E **<100 <0.5 <0.5 <0.5 <0.5 <3 No FP,No S,No O
<br /> 0548 QMR3Q02
<br /> 2 of 10
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