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TABLE 1
<br /> GROUNDWATER ELEVATION AND ANALYTICAL DATA
<br /> ARCO Service Station No. 548
<br /> 1612 Hammer Lane, Stockton, California
<br /> Well Top of Static Top Groundwater Ethyl- Total
<br /> Sample Sample Casing Water of Groundwater Flow TPHg Benzene Toluene benzene Xylenes MtBE[1]
<br /> Number Date Elevation Level Screen Elevation Direction m m m m m mqLL Observations
<br /> VW-1 (43) 9/29/1998 [NP] NM 28.73 25.00 E 18,800 573 59.0 873 4,120 2,300 No FP, No S,Yes O
<br /> (43) 12/30/1998 [NP] NM 26.50 -- SE 19,200 2,150 <50 691 3,310 785 No FP, No S, Yes O
<br /> 3/31/1999 NM 24.97 E-SE Not scheduled for sampling No FP, No S, No O
<br /> 6/28/1999 NM 25.99 SE Not scheduled for sampling No FP, No S, No O
<br /> 9/10/1999 NM 28.33 -- E Not scheduled for sampling No FP, No S, No O
<br /> 12/13/1999 NM 27.46 - E Not scheduled for sampling No FP, No S, No O
<br /> 3/28/2000 NM 24.23 -- SE Not scheduled for sampling No FP, No S, No O
<br /> 6/26/2000 NM 25.11 - E Not scheduled for sampling No FP, No S, No O
<br /> 9/28/2000 NM 27.72 - E-NE Not scheduled for sampling No FP, No S, No O
<br /> 12/18/2000 NM 25.50 -- E Not scheduled for sampling No FP, No S, No O
<br /> 3/14/2001 NM 24.33 E Not scheduled for sampling No FP, No S, No O
<br /> 6/19/2001 NM 25.50 - E Not scheduled for sampling No FP, No S, No O
<br /> 9/11/2001 NM 26.28 E Not scheduled for sampling No FP, No S, No O
<br /> 12/13/2001 [NP] NM 27.74 -- E-NE <50 2.5 <0.50 <0.50 <0.50 87[2] No FP, No S, No O
<br /> 3/12/2002 [NP] NM 25.20 -- E <50 <0.50 <0.50 <0.50 <0.50 0.68[2] No FP, No S, No O
<br /> 6/17/2002 [NP] NM 26.95 -- E <50 <0.50 <0.50 <0.50 <0.50 7.8[2] No FP, No S, No O
<br /> 9/9/2002 NP NM 29.54 -- NE <50 0.55 <0.5 <0.5 <0,5 60 No FP, No S, No O
<br /> 12/4/2002 NP NM 29.64 -- NE 310 14 0.59 1.1 6.1 97 No FP, No S, No O
<br /> 3/3/2003 NP NM 28.77 -- SE <100 <1.0 <1.0 <1.0 <1.0 30[2] No FP, No S, No O
<br /> 6/3/2003 NP NM 28.51 - <50 <0,50 <0.50 <0.50 <0.50 22[2] No FP, No S, No O
<br /> VW-2 (41) 9/29/1998 [NP] NM 29.01 25.00 -- E 13,200 822 <12.5 1,370 754 <125 No FP, No S, Yes O
<br /> (41) 12/30/1998 [NP] NM 27.47 -- SE 8,950 778 <20 1,180 339 <200 No FP, No S, Yes O
<br /> 3/31/1999 NM 25.21 -- E-SE Not scheduled for sampling No FP, No S, No O
<br /> 6/28/1999 NM 26.35 -- SE Not scheduled for sampling No FP, No S, No O
<br /> 9/10/1999 NM 29.29 E Not scheduled for sampling No FP, No S, No O
<br /> 12/13/1999 NM 28.43 -- E Not scheduled for sampling No FP, No S, No O
<br /> 3/28/2000 NM 25.24 - SE Not scheduled for sampling No FP, No S, No O
<br /> 6/26/2000 NM 26.10 -- E Not scheduled for sampling No FP, No S, No O
<br /> 9/2812000 NM 28.69 -- E-NE Not scheduled for sampling No FP, No S, No O
<br /> 12/18/2000 NM 26.51 - E Not scheduled for sampling No FP, No S, No O
<br /> 3/14/2001 NM 24.40 E Not scheduled for sampling No FP, No S, No O
<br /> 6/19/2001 NM 25.15 E Not scheduled for sampling No FP, No S, No O
<br /> 9/11/2001 NM 29.40 E Not scheduled for sampling No FP, No S, No O
<br /> 12/13/2001 [NP] NM 28.75 E-NE 180 [3] 2.6 <0.50 <0.50 <0.50 1.5[2] No FP, No S, No O
<br /> K.\WprocessW5 BP ARC01005481Quarterly10548 QMR 2003
<br /> 7of11
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