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Table 1 <br /> Groundwater Elevation and Analytical Data <br /> -ARCO-Service-Station No. 2130 <br /> 7906 N. EL Dorado Street, 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) WL): (pg/L (pg1L) (pg1L),: (pg1L) (pg/L) (pg1L). (mg/L) Comments <br /> _ ,.. VW-5. .,..0310812004 P„ 150..:._.. - 1.0: _.: i3O.50._ <0.50 . <0.50.,-. .:.., ,.. <0.50[2]:... ..3.08.E <br /> 06/24/2004 NP m - 44.68 -- 110 - <2.5 <2.5 <2.5 <2.5 <2.5[2] 1.57 Water levels taken on <br /> 6/23/04 <br /> 09/20/2004 P - 48.68 -- 150 - <5.0 <5.0 <5.0 <5.0 <5.0[2] 1.10 <br /> 12/21/2004 P - 45.15 -- 380 - <2.5 <2.5 <2.5 <2.5 3.8[2] 0.70. Water Level Data 12/20/04 <br /> 03/27/2005 P -- 42.07 -- 150 -- <5.0 <5.0 <5.0 <5.0 <5.0[2] 2.10 . <br /> 106/19120051 P 1 42.34 - 130 J - 2.3 J <0.50 <0.50 <0.50 3.4[2]J 1.30 <br /> 09/1112005 P 1 46.93 -- <100 -- 2.0 <1.0 <1.0 <1.0 3.112] 2.0 <br /> VW-6 03/06/2003 -- -- - -- -- - - - - - - -- <br /> 12/10/2003 - lWell Dry <br /> 03/08/2004 -- iWell Dry <br /> 06/23/2004 NP - - - - - - - - - Well Dry,Not Sampled <br /> 09/20/2004 - - -- -- - - - -- -- -- _ -- - Well Dry,Not Sampled <br /> 12/20/2004 -- - -- - -- - - -- -- - Not Sampled,Well Dry <br /> 03/28/2005 - - - - -- - - - - - -- Well Dry,Not Sampled <br /> 06/19/2005 IWell Dry,Not Sampled <br /> 09/11/2005 -- 1 -- jWell Dry,Not Sampled <br /> VW-7 5/20/1997 - -- 45.05 - 56 - 0.6 <0.5 <0.5 0.8 4 No FP,No S <br /> 9/1/1998 -- -- 41.63 NA - NA NA NA NA NA -- <br /> 12/2/1998 -- - 38.95 - NA -- NA. NA NA NA NA -- <br /> 3/31/1999 - - 38.86 NA - NA NA NA NA NA - <br /> 6/4/1999 - - 36.63 -- NA - NA NA NA NA NA - <br /> 9/2/1999 - -- 41.22 - NA NA NA NA NA NA - <br /> 11/29/1999 -- -- - - -- -- -- - - -- -- Well inaccessible <br /> 3/16/2000 -- -- -- -- -- -- - - - - - - Well inaccessible <br /> 6/26/2000 - 36.82 - NA - NA NA NA NA NA - <br /> 9/28/2000 - 41.13 - NA - NA NA NA NA NA - <br /> 12/19/2002 -- -- 41.69 -- 160 -- <0.50 <0.50 1.3 "<0.50 11.0[2] - <br /> 03/06/2003 P 39.41 -- 440 - 0.59 <5.0 <5.0 <5.0 11[2] 1.10 <br /> 06/11/2003 P - 39.00 - <50 -- <0.50 <0.50 X0.50 <0.50 0.54[2] 4.12 <br /> 09/24/2003 P - 42.99 -- <50 <0.50 <0.50 <0.50 <0.50 <0.50[2] - <br /> 12/10/2003 P -- 41.73 - 210 - 3.0 <2.5 <2.5 4.8 9.1[21 -- <br /> Report Date:October 21,2005 Page 20 of 24 <br />