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<br /> TABLE 1
<br /> GROUNDWATER ELEVATION AND ANALYTICAL DATA
<br /> ARCO Service Station No. 548
<br /> 1612 Hammer Lane, Stockton, California
<br /> Well Efevatlon Static Top Elevation Groundwater Ethyl- Total
<br /> Sample of Top Water of of Flow TPHg Benzene Toluene benzene Xylenes MtBE 11]
<br /> Number Date of CasIng Level Screen Groundwater Direction y911- pg/L pg/L pg/L p /L p /L Observations
<br /> MW-6 (58) 2/15/1995 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) 5/12/1995 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) 8/29/1995 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) 12/4/1995 8.95 38.38 -29.43 E *<70 <0.5 <0.5 <0.5 <0.5 NA No FP, No S, No O
<br /> 2/2/1996 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) 5/10/1996 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) 8/29/1996 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) 11/20/1996 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) 3/19/1997 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 /> 5/27/1997 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) 8/12/1997 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) 11/18/1997 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) 2/16/1998 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) 6/23/1998 [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) 9/29/1998 [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) 12/30/1998 [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) 3/31/1999 [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) 6/28/1999 {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) 9/1011999 [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) 12/13/1999 [P] 8.95 26.62 -17.67 E <50 <0.5 <0.5 <0.5 <0.5 935 No FP, No S, No O
<br /> (59) 3/28/2000 [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) 6/26/2000 [P] 8.95 24.41 -15.46 E <50 <0.5 <0.5 <0.5 <0.5 14[2] No FP, No S, No O
<br /> 9/28/2000 [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 /> 12/18/2000 [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 /> 3/14/2001 [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 /> 6/19/2001 [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 /> 9/11/2001 [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 /> 12/13/2001 [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 /> 3/12/2002 [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 /> 6/17/2002 [P] 6.95 26.22 -17.27 E <50 <0.50 <0.50 <0.50 <0.50 7.7 [2] No FP, No S, No O
<br /> 9/9/2002 P 8.95 29.11 -20.16 NE <50 <0.5 <0.5 <0.5 <0.5 1.0 No FP, No S, No O
<br /> 12/4/2002 P 8.95 28.86 -19.91 NE <50 <0.5 <0.5 <0.5 <0.5 <0.5 No FP, No S, No O
<br /> 3/3/2003 P 8.95 29.04 -20.09 SE <50 <0.5 <0.5 <0.5 <0.5 <0.5 No FP, No S, No 0
<br /> KAWprocess\J5 BP ARC01o5481Quartedy\1 QTR 0310548 GWMR 1003
<br /> 6of10
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