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0 <br /> Table 1 <br /> Groundwater Elevation and Analytical Data <br /> Former ARCO Service Station No 2168 <br /> 441 W Charter Way, Stockton CA <br /> Top of Depth to Water Level Ethyl- Total <br /> Well Date PI Casing Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled NP Elevation (feet bgs) (feet msl) (pg/L) (pg/L) (pg/L) (pg1L) (p91L) (pg1L) (pg1L) (mg/L) Comments <br /> MW-7 11/17/1997 — 888 2491 -1603 2,300 — 120 190 20 100 <50[l] NA (48) <br /> 2/9/1998 -- 888 2221 -1333 21,000 — 1 100 2,800 660 2 700 4,400[1] NA (47) <br /> 5/22/1998 -- 888 1836 -948 9,580 -- 593 919 282 942 <100 NA (47) <br /> 8/12/1998 -- 888 1857 -969 5,690 — 289 460 197 628 <2 NA (47) <br /> 11/9/1998 888 1968 -1080 4,970 — 406 612 119 520 <2 NA (47) <br /> 2/17/1999 -- 888 1890 -1002 42,300 -- 3,650 8,230 942 5,030 <2 NA (47) <br /> 5/25/1999 - 888 1831 -943 9,910 -- 944 1,910 287 1 550 <2 NA (35) <br /> 8/18/1999 — 888 1938 -1050 10,400 — 681 1,040 331 1,500 <2 NA (47) <br /> 12/17/1999 888 2030 -1142 1,790 -- 833 269 966 808 <2 NA (47),[2] <br /> 2/22/2000 -- 888 1936 -1048 2 240 — 159 98 149 399 <2 NA (47) <br /> 6/22/2000 -- 888 1799 F -911 33,900 — 6,560 1,130 1 090 4,610 <2 NA (41) <br /> 8/30/2000 -- 888 1926 -1038 1,590 - 222 195 49 102 <2 NA <br /> 11121/2000 — 888 1996 -11 08 2,260[6] -- 106 768 542 216 <2 NA <br /> 2/15/2001 -- 888 1997 -11 09 18,400[7] -- 1,400 2,530 656 2,420 <2 12 <br /> 5/17/2001 -- 888 1922 -1034 2,320[5] -- 207 119 407 991 <10 08 <br /> 8/16/2001 -- 888 2059 -1171 2,200 30 14 49 95 <2 06 <br /> 12/6/2001 — 888 2163 -1275 6 800 580 270 210 930 <5 0' 09 <br /> 2/14/2002 -- 888 2003 -11 15 62[8] -- <0 50 <0 50 053 <0 50 <0 50 24 <br /> 6/13/2002 — 888 2035 -1147 1 400[8] -- 29 4 12 13 <0 50 14 <br /> 8/22/2002 -- 888 2138 -1250 1,400 -- 11 <50 15 10 <0 50 09 <br /> 11/13/2002 -- 888 2233 -1345 1,400 — 40 <10 18 34 <10 — <br /> 02/12/2003 -- 888 2316 -1428 820 -- <50 <50 <5 0 <5 0 <5 0 — <br /> 05/29/2003 P 888 2080 -1192 380 -- <0 50 <0 50 19 1 3 <1 0 502 <br /> 08/04/2003 P 888 2141 -1253 620 <0 50 <0 50 <0 50 <0 50 <0 50 198 <br /> 11/03/2003 P 888 2250 -1362 320 J — <2 5 UJ <2 5 UJ <2 5 UJ <2 5 UJ <2 5 UJ 196 <br /> 02/09/2004 P 888 2234 -1346 290 — 55 <2 5 <2 5 68 <2 5 238 <br /> MW-8 8/30/2000 -- 935 1885 -950 115 — <2 <2 <2 <2 <2 NA <br /> 11/21/2000 — 935 1930 -995 <50 — <0 5 <0 5 <0 5 <0 5 <2 NA <br /> 2115/2001 -- 935 1883 -948 <50 -- <0 5 <0 5 <0 5 <0 5 <2 12 <br /> 5/17/2001 -- 935 1890 -955 <50 — <0 5 <0 5 <0 5 <0 5 <2 26 <br /> 8/16/2001 -- 935 2012 -1077 <50 -- <0 5 <0 5 <0 5 <0 5 <2 09 <br /> 12/6/2001 -- 935 1829 -894 <50 -- <0 50 <0 50 <0 50 <0 50 <0 50 16 <br /> 2114/2002 -- 935 1927 -992 <50 — <0 50 <0 50 <0 50 <0 50 <0 50 31 <br /> Report Date April 21,2004 Page 9 012 <br />