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Table 2
<br /> Groundwater Elevation and Analytical Data
<br /> ARCO Service Station No, 548
<br /> 1612 W. Hammer Lane, Stockton, CA
<br /> TOC Depth to Water Level Ethyl- Total
<br /> Well Date P/ Elevation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO
<br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) (pg/L) (pg/L) Uig/L) (pg/L) (pg/L) (pg/L) (fig/L) (mg/L) Comments
<br /> MW-1 06/03/2003 P 10.36 28.11 -17.75 <50 - 0.94 <0.50 <0.50 <0.50 320[2] 3.97
<br /> 09/18/2003 P 10.36 31 .63 -21 .27 j130 R - <25 <25 <25 <25 320[2] 1 .61
<br /> 12/08/2003 P 10.36 3156 -21 .20 R - <5.0 <5.0 <5.0 <5.0 250[2]03/11/2004 P 10.3629.96 -19.600 -- <5.0 <50 <5.0 <5.0 200[2] 1 .49
<br /> W-2 2/15/1995 -- 9.82 40.67 -30.85 0 -- <0.5 <0.5 0.5 <0.5 NA -- No FP, No S, No O, [615/12/1995 - 9.82 38.85 -29.03 0 -- <0.5 <0.5 <0.5 <05 NA -- No FP, No S, No 0, [61 ]8/29/1995 -- 9.82 40.44 -30.62 52 -- <0.5 <0.5 1 <05 NA -- No FP, No S, No O, [61 ]
<br /> 12/4/1995 - 9.82 39.08 -29.26 60 -- <0.5 <0.5 <0.5 <0.5 NA -- No FP, No S, No O, [61 ]
<br /> 2/2/1996 - 9.82 37.09 -27.27 <50 -- <0.5 <0.5 <0.5 <0.5 NA -- No FP, No. S, No O
<br /> 5/10/1996 - 9.82 34.55 -24.73 <50 -- <0.5 <0.5 <0.5 <0.5 <3 -- No FP, No S, No O, [61 ]
<br /> 8/29/1996 - 9.82 36.29 -26.47 ""<60 -- <0.5 <0.5 <0.5 <0.5 <3 -- No FP, No S, No O, 161 ]
<br /> 11/20/1996 - 9.82 35.25 -25.43 <50 -- 0.5 <0.5 <0.5 <0.5 <3 -- No FP, No S, No O, [61]
<br /> 3/19/1997 - 9.82 31 .52 -21 .70 <50 -- 0.6 <0.5 <0.5 <0.5 <3 -- No FP, No 5, No O, [61 ]
<br /> 5/27/1997 9.62 31 .79 1 -21 .97 <50 -- 1 .2 <0.5 <0.5 <0.5 <3 -- No FP, No S, No O
<br /> 8/12/1997 - 9.82 33.18 -23.36 52 -- <0.5 <0:5 <0.5 <0.5 <5 -- No FP, No S, No O, [60]
<br /> 11/18/1997 -- 9.82 32.88 -23.06 <50 1 -- 2.6 1 .4 0.65 1 -5 <5 -- No FP, No S, No O, [61 ]
<br /> 2/16/1998 - 9.82 29.48 -19.66 <50 -- <0.5 <0.5 <0.5 <0.5 <5 -- No FP, No S, No O, [60]
<br /> 6/23/1998 P9.82 26.98 -17.16 <50 -- <0.5 <0.5 <0.5 <0.5 <5 -- No FP, No S, No O, [60]
<br /> 9/29/1998 P 9.82 28.78 -18.96 <50 -- <0.5 <0.5 <0.5 <0.5 <5 -- No FP, No S, No O, [60]
<br /> 12/30/1998 P 9.82 26.53 -16.71 <50 - <0.5 <0.5 <0.5 <0.5 <5 -- No FP, No S. No O, [60]
<br /> 3/31/1999 P 9.82 25.11 -15.29 <50 -- <0.5 <0.5 <0.5 <0.5 <5 -- No FP, No S, No O, [60]
<br /> 6/28/1999 P 9.82 26.25 -16.43 <50 -- <0.5 <0.5 <0.5 <0.5 <5 -- No FP, No S, No O, [60]
<br /> .0
<br /> 9/10/1999 P 9.82 28.28 -18.46 c50 -- <0.5 <0.5 <0.5 <0.5 c5 -- No FP, No S, No O, [60]
<br /> 12/13/1999 P 9.82 27.35 -17.53 <50 -- <0.5 <0.5 <0.5 <0.5 3.48 -- No FP, No S, No O, [60]
<br /> 3/28/2000 P 9.82 24.07 -14.25 <50 -- <0.5 <0.5 <0.5 <0.5 <2.5 -- No FP, No S, No O, [60]
<br /> 6/26/2000 P 9.82 25.12 -15.30 <50 -- <0.5 <0.5 <0.5 <0.5 <2.0[2] -- No FP, No S, No O, [61 ]
<br /> 9/28/2000 P 9.82 27.68 -17.86 <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 <50 -- <0.5 <0.5 <0.5 <0.5 <2[21 -- No FP, No S, No O
<br /> 3/14/2001 P 9.82 25.00 -15. 18 <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 <50 -- <0.5 <0.5 <0.5 <-O 5 <2[2] -- No FP, No S, No O
<br /> 9/11/2001 P 9.82 28.41 -18.59 <50 -- <0.5 <0.5 <0.5 <0.5 <2[2] -- NoFP, No S, Yes O
<br /> 12/13/2001 P 9.82 27.70 -17.88 <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 <50 - <0.50 <0.50 <0.50 <0.50 1 .6[2] -- No FP, No S, Yes O
<br /> Report Date: May 13, 2004 Page 2 of 14 ,
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