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i � • <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 TPI-Ig TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP (feet msl) (feet bgs) (feet msl) (pg/L) (pg/L) (pg/L) (pg/L) W/L) (pg/L) (pg/L) (mg/L) Comments <br /> VW-12 9/28/2000 — — 4094 — NA -- NA NA NA NA NA -- <br /> 12/19/2002 — — 4050 — <200 — 120 <050 <0 50 <0 50 2 6[2] — <br /> 03/06/2003 P -- 3827 — 440 R — <0 50 <0 50 <0 50 <0 50 0 98[2] — <br /> 06/11/2003 P -- 3761 — <50 — <0 50 <0 50 <0 50 <0 50 <0 50[2] — <br /> 09/24/2003 P -- 4171 -- <50 — <0 50 <0 50 <0 50 <0 50 <0 50[2] — <br /> 12/10/2003 P -- 4131 — 210 — <25 <2 5 <25 <2 5 9 5[2] — <br /> 03/08/2004 P -- 3834 — <50 -- <050 <0 50 <0 50 <050 <0 50[2] 201 <br /> 06/24/2004 P -- 4322 — <50 — <0 50 <0 50 <0 50 <0 50 <0 50[2] 222 Water levels taken on <br /> 6/23104 <br /> 09/20/20041 P -- 4738 — 230 — <2 5 <2 5 1 <2 5 <2 5 <2 5[2] 1 0 <br /> 112/20120041 P — 4457 — 330 J — <0 50 <0 50 <0 50 <0 50 0 82[2] 2 35 <br /> Report Date January 31,2005 Page 21 of 22 <br /> I <br />