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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 00 <br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) W/L) W/L) (#9/L) (pg/L) (ug/L) (,ug1L) (Erg/L) (mg1L) Comments <br /> VW-7 03/06/2003 P - 3941 - 440 059 <5 0 <50 <50 11(2] 1 1 <br /> 06/11/2003 P -- 3900 - <50 - <0 50 <0 50 <0 50 <0 50 0 54[2] 412 <br /> 09/24/2003 P - 4299 - <50 - <0 50 <0 50 <0 50 <0 50 <0 50[2] - <br /> 12/10/2003 P - 4173 - 210 - 30 <2 5 <2 5 48 9 1[2) - <br /> 03/08/2004 P - 3945 - 59 - <2 5 <25 <2 5 <2 5 6 3[2) 155 <br /> 06/24/2004 P - 4439 - <50 - <0 50 <0 50 <0 50 <0 50 1 1[2) 306 Water levels taken on <br /> 6123/04 <br /> 09/20/2004 P - 4856 - <50 - <0 50 <0 50 <0 50 <0 50 1 2[2] - <br /> 12/2012004 P I -- 4548 - 300 J -- <0 50 <0 50 <0 50 <0 50 13(2] 187 <br /> VW-8 5/20/1997 - - 4481 - 25,000 -- 480 290 260 3,900 <120' - No FP,No S <br /> 9/1/1998 - -- 4023 - NA - NA NA NA NA NA - <br /> 12/2/1998 - - 3869 - NA - NA NA NA NA NA - <br /> 3/31/1999 - - 3750 -- NA -- NA NA NA NA NA - <br /> 6/4/1999 -- - 3656 - NA -- NA NA NA NA NA - <br /> 9/2/1999 - - 4099 NA -- NA NA NA NA NA - <br /> 11/29/1999 - - 3914 - NA - NA NA NA NA NA -- <br /> 3/16/2000 - - 3524 - NA - NA NA NA NA NA - <br /> 6/26/2000 -- - 3780 -- NA -- NA NA NA NA NA - <br /> 9/28/2000 - 4203 - NA - NA NA NA NA NA - <br /> 12J19/2002 - - 4157 - 290 - 46 14 12 31 <10 - <br /> 03/06/2003 P - 3927 - 930 - 150 1 1 6 68 14 1 0[2] 12 <br /> 06/11/2003 P - 3817 - 530 - 81 19 J 23 13 <2 5[2] 297 <br /> 09/24/2003 P - 4221 - 1,900 - 140 <50 200 270 <5 0[2] - <br /> 12/1012003 P - 4160 - 81 - 11 <0 50 <0 50 <0 50 4 9[2] - <br /> 03/08/2004 P - 3936 - 1,500 - 120 <25 64 <2 5 <2 5[2] 106 <br /> 06/24/2004 NP - 4411 - 130 - 26 <25 <2 5 <2 5 2 8[2] 217 Water levels taken on <br /> 6/23/04 <br /> 09/20/2004 P - 4840 - 51,000 1 - 2 400 110 340 200 <50[2] 04 <br /> 12/21/2004 P -- 4490 15,000 - 1,200 J 64 440 450 <5 0[2] 05 Water Level Data <br /> 12!20104 <br /> VW-9 03/06/2003 - - -- - -- -- - -- -- - -- <br /> 12/10/2003 - -- - -- - _ _ _ _ _ - - Well Dry <br /> 03/08/2004 - - - -- - - - - - -- - Well Dry <br /> Report Date January 31,2005 Page 19 of 22 <br />