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• • • <br /> Table 1 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station No 2130 <br /> 7906 N Et_ Dorado Street, Stockton, CA <br /> :,�' <br /> Depth to Water Level Ethyl- Total <br /> Well Date P/ En Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP {# l) (feet bgs) (feet msl) (pg/L) (pg/L) (f,g1L) Urg/L) (/rg/L) ({ug/L} (�rglL) (mg/L) Comments <br /> MS 1A 12/19/2002 -- 4239 NA NA NA NA NA NA - <br /> 03/06/2003 P 3886 240 22 66 1 7 12 <0 50[2] 1 9 <br /> 06/11/2003 P 3812 110 16 64 1 6 10 0 55[2) 6 86 <br /> 09/24/2003 P 4215 <50 <0 50 <0 50 <0 50 <0 50 0 51[2] <br /> 12/10/2003 P 4243 120 16 18 37 24 0 58[2] - <br /> 03/09/2004 P 3894 170 22 <0 50 <0 50 <0 50 7 7[2] 211 <br /> 06/24/2004 P 4345 <50 2 8 22 <0 50 2 0 <0 50[2] 101 Water levels taken on <br /> 6/23/04 <br /> 09/20/2004 P 4758 <50 <0 50 <0 50 <0 50 <0 50 <0 50[2] 0 8 <br /> 12/20/2004 - - - -- -- - - Not Sampled <br /> 03/29/2005 P 4225 65 <0 50 <0 50 <0 50 <0 50 <0 50[2] 1 8 Water levels taken on <br /> 03/28/2005 <br /> 06/20/2005 P 41 58 200 J 1 5 J 1 2 <0 50 1 9 <0 50[2] 1 4 Water level taken 6/19/05 <br /> 09/12/2005 P 4599 200 - 22 0 89 063 27 <0 50[2] 1 8 Water levels taken on <br /> 9/11/05 <br /> 12/11/2005 P -- 4295 -- 130 -- 088 1 4 <0 50 21 <0 50[2] 20 <br /> MS 18 12/19/2002 41 96 82 10 <0 50 1 8 <0 50 <0 50[2] - <br /> 03/06/2003 P 3900 510 9 3 10 46 21 <0 50[2] 1 3 <br /> 06/11/2003 P 3833 130 27 1 6 J <0 50 069 J <0 50[2] 315 <br /> 09/24/2003 P 4230 <50 <0 50 <0 50 <0 50 <0 50 0 62[2] <br /> 12/10/2003 P 41 99 120 14 I 15 31 20 0 57[2] - <br /> 03/09/2004 P 3907 430 25 I <0 50 <0 50 <0 50 8 9[2] 2 96 <br /> 06/24/2004 P 4338 <50 UJ 2 6 22 <0 50 1 9 <0 50[2] 096 Water levels taken on <br /> 6/23104 <br /> 09/20/2004 P 4759 <50 39 J 056 J <0 50 <0 50 <0 50[2] 34 <br /> 12/20/2004 - - - - - Not Sampled <br /> 03/29/2005 P 41 25 <50 0 63 J <0 50 UJ <0 50 UJ <0 50 UJ <0 50[2] 34 Water levels taken on <br /> 03/28/2005 <br /> 06/20/2005 P 41 68 160 J 3 5 .1 41 1 0 1 55 <0 50[2] 1 5 Water level taken 6/19/05 <br /> 09/12/2005 P 4604 290 31 30 076 3 7 <0 50[2] 1 6 Water levels taken on <br /> 9/11/05 <br /> 12/11/2005 i P — 42 95 — 270 — 22 31 094 46 <0 50[2] 1 3 <br /> MS-2A 1 12/19/2002 41 38 <50 <0 50 <0 50 <0 50 <0 50 0 79[2] <br /> 03106120031 P 1 3920 62 - 1 4 059 1 2 55 0 61[2] 4 0 <br /> Report Date January 25,2006 Page f of 25 <br />