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i • i <br /> Table I <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) (pg1L) (pg1L) (pg1L) 4191L) U4L) (pg/L) (pg1L) (mglL) Comments <br /> MS-IA 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] 19 <br /> 06/11/2003 P -- 3812 — 110 — 16 64 1 6 10 0 55[2] 686 <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 20 <0 50[2] 101 Water levels taken on <br /> 6123104 <br /> 09/20/2004 P — 4758 — <50 — <0 50 <0 50 <0 50 <0 50 <0 50[2] 0 fl <br /> 12!2012004 INot Sampled <br /> MS-1 B 12/19/2002 — -- 4196 — 82 -- 10 <0 50 18 <0 50 <0 50[2] -- <br /> 03/06/2003 P -- 3900 — 510 -- 9 3 10 46 21 <0 50[21 13 <br /> 06/11/2003 P — 3833 — 130 -- 27 16 J <0 50 069 J <0 50[2] 315 <br /> 09/24/2003 P — 4230 — <50 — <050 <0 50 <0 50 <0 50 0 62[2] -- <br /> 12/10/2003 P — 4199 -- 120 — 14 15 31 20 0 57[2] -- <br /> 03/09/2004 P — 3907 — 430 — 2 5 <0 50 <0 50 <0 50 8 9[2] 296 <br /> 06/24/2004 P -- 4338 — <50 UJ -- 2 6 22 <0 50 1 9 <0 50[2] 096 Water levels taken on <br /> 6123104 <br /> 09/20/2004 P — 4759 -- <50 -- kI 39 J 056 J <050 <0 50 <0 50[2] 34 <br /> 12120/2004 -- — I — — — I -- — — -- — — -- Not Sampled <br /> MS-2A 12/19/2002 — — 4138 -- <50 — <0 50 <0 50 <0 50 <0 50 0 79[2] — <br /> 03/06/2003 P - 3920 — 62 - 14 059 12 55 0 61[2] 40 <br /> 06/11/2003 P — 3880 — <50 - <0 50 <0 50 <0 50 <0 50 <0 50[2]UJ 312 <br /> 09/24/2003 P — 4281 — <50 -- <050 <0 50 <0 50 <0 50 0 62[2] -- <br /> 12/10/2003 P — 4141 — 150 -- 18 20 37 25 0 60[2] — <br /> 03/09/2004 P — 3926 — 1 000 -- 33 1 <0 50 71 <0 50 3 8[21 107 <br /> 06/23/2004 P -- 4404 -- <50 — 052 <050 <0 50 <050 <0 50[21 202 <br /> 09/20/2004 P - 4808 — <50 -- 0 70 <0 50 <0 50 <0 50 <0 50[21 27 <br /> 12/2012004 -- — — — — -- — — -- — — -- Not Sampled <br /> MS-213 12/19/2002 -- — 4142 — 170 -- 065 <0 50 <0 50 <0 50 <0 SOj2] -- <br /> 03/06/2003 P -- 3916 — 87 — 1 1 <0 50 099 46 <0 50[2] 31 <br /> 06/11/2003 NP — 3869 — <50 — <0 50 <0 50 <0 50 <0 50 <0 50[2]UJ 419 <br /> Report Date January 31,2005 Page 1 of 22 <br /> I <br />