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 /> MW-2 (61) 2/15/1995 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) 5/12/1995 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) 8/29/1995 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) 12/4/1995 9.82 39.08 -29.26 E *<60 <0.5 <0.5 <0.5 <0.5 NA No FP, No S, No O
<br /> 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) .8/2911996 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 <05 <0.5 <0.5 <3 No FP, No S, No O
<br /> (61) 3/19/1997 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 /> 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 FP, 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 E-SE <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 <0.5 <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 E-NE <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 /> 1 21412 00 2 P 9.82 29.63 -19.81 NE <50 <0.5 1.6 <0.5 3.1 2.0 No FP, No S, No O
<br /> 3/3/2003 P 9.82 27.85 -18.03 SE <50 <0.5 <0.5 <0.5 <0.5 1.7[2] No FP, No S, No O
<br /> K:1Wprocess\J5 BP ARC0105481Quarter1y\1 QTR 0310548 GWMR 1003
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