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• s � <br /> 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) (pg/L) (jugIL) {pglL) (ppg/L) (fag/L) (frg1L) (pg1L) (mg/L) Comments <br /> MW-10 3/31/1999 -- 1438 3471 -2033 217 - 641 0 948 0 763 269 748 - <br /> 6/4/1999 -- 1438 3586 -2148 288 - <05 <05 <0 5 <0 5 653 -- <br /> 9l211999 - 1438 4026 -2588 152 -- <05 <05 <0 5 <0 5 <5 - <br /> 11/29/1999 -- 1438 3858 -2420 198 -- 358 <05 <0 5 061 908 - <br /> 3/16/2000 - 1438 3469 -2031 270 - 0 741 <05 <0 5 <0 5 595 - <br /> 6/26/2000 - 1438 3705 -2267 389 -- <0 5 <05 <0 5 <0 5 <2[2] - <br /> 9/28/2000 - 1438 4128 -2690 <50 - 087 <05 <0 5 <0 5 <2[2] - <br /> 12/19/2000 - 1438 3720 -2282 <50 - <0 5 <05 <0 5 <0 5 <2 5 - <br /> 3/15/2001 - - - - -- -- - -- - -- - - Well Covered <br /> 6/20/2001 - - 3698 -- 11,000[5] -- <2[4] <2[4] <2[4] <2[4] <2[2] - <br /> 9/12/2001 - - - - - -- -- - - - - Well Covered <br /> 12/12/2001 - - - - -- -- - - -- - - - Well Covered <br /> 3/13/2002 - -- - - - - - - - - -- -- Well Covered <br /> 6/18/2002 -- -- - - - - - - - - - Well Covered <br /> 9/11/2002 - - -- -- - - - -- - - - -- Well Covered <br /> 12/18/2002 -- -- -- -- - - - - -- -- - -- Well Covered <br /> 06/11/2003 - - _ _ _ _ _ _ _ - lWeil Covered <br /> 09/25/2003 lWell Destroyed <br /> VW-1 5/20/1997 - - 4416 - 340,000 - 330 540 2,100 13,000 <1,200' - No FP,No S <br /> 9/1/1998 - - 4175 - NA - NA NA NA NA NA - NA <br /> 12/2/1998 - 3843 - NA - NA NA NA NA NA -- NA <br /> 3/31/1999 -- - 3891 -- NA - NA NA NA NA NA -- NA <br /> 6/4/1999 - - 3578 - NA - NA NA NA NA NA -- NA <br /> 9/2/1999 - 4030 -- NA - NA NA NA NA NA - NA <br /> 11/29/1999 - - 3849 - NA -- NA NA NA NA NA -- NA <br /> 3/16/2000 -- - 3452 -- NA - NA NA NA NA NA - NA <br /> 6/26/2000 - - 3708 - NA - NA NA NA NA NA -- NA <br /> 9/28/2000 - - 4134 - NA - NA NA NA NA NA - NA <br /> 12/19/2002 - - 4159 - 810 - <5 0 <50 59 130 6 4[2] -- <br /> 03/06/2003 P - 3869 -- 350 - 092 <0 50 21 68 25[2]06/11/2003 P - 3795 - <50 - <0 50 <0 50 <0 50 <0 50 8 4[2] 346 <br /> 09/24/2003 P - 4198 -- 51 -- <0 50 <0 50 <0 50 <0 50 8 7[2] - <br /> 12/10/2003 P - 4097 -- 170 -- 18 <0 50 68 1 5 13[2] - <br /> I <br /> Report Date January 31,2005 Page 16 of 22 <br />