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i ! ! <br /> Table 1 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station #2133 <br /> 2908 Benjamin Holt Drive <br /> Stockton, California <br /> Well Depth Product Groundwater Groundwater Ethyl- Xylenes <br /> Well Date Elevation to Water Thickness Elevation Elevation TPHg Benzene Toluene benzene (total) MtBE DO <br /> Number Sampled (ft,MSL) (ft,TQC) ft ft,MSL) Change(ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg/L) <br /> E-9 1/22/1992 1824 -- -1668 - - _ - <br /> (cont) 4/22/1992 1745 -- -1589 079 3 600 170 10 5o 120 <br /> 7/29/1992 dry _ ._ _ - -- - <br /> 10/29/1992 1719 -- -1563 8,900 480 32 440 1 100 <br /> 1/27/1993 1610 -1454 109 12,000 390 25 310 730 <br /> 4/29/1993 1419 -- -1263 191 12,000 270 <98 150 380 <br /> 8/5/1993 15 83 -1427 -164 16,000 370 22 220 460 <br /> 11/10/1993 1618 -- -1462 -035 12,000 210 21 200 390 <br /> 3/21/1994 1551 -- -1395 067 6,300 170 24 200 320 <br /> 6/27/1994 1534 -1378 017 10,000 780 18 660 980 <br /> 9/29/1994 1636 - -1480 -102 8,800 430 14 470 630 <br /> 12/8/1994 1597 -- -1441 039 7,800 450 20 610 810 <br /> 3/8/1995 1354 -- -1198 243 8,600 100 <20 230 260 <br /> 6/1/1995 1202 -- -1046 152 24,000 550 38 870 2,000 <br /> 9/11/1995 1422 -- -1266 -220 150,000 1,700 7,600 3,000 14,000 <br /> 12/5/1995 1458 -1302 -036 45,000 960 1,500 1,000 3,200 <br /> 3/18/1996 962 -- 806 496 8,800 290 130 240 490 <br /> 6/18/1996 1035 - -879 -073 1,600 110 32 69 91 110 <br /> 9/25/1996 1282 -1126 -247 2,800 130 <5 180 46 83 <br /> 12/4/1996 1220 -- -1064 062 2,800 290 32 250 80 560 <br /> 3/19/1997 NP 772 -- -616 448 <50 <0 5 <0 5 <0 5 <0 5 <5 01 <br /> 6/5/1997 NP 939 -- .783 -167 <50 <0 5 <0 5 <0 5 <0 5 85 02 <br /> 8/19/1997 NP 1084 -- -928 -1 45 <50 <0 5 <0 5 <0 5 <0 5 <5 02 <br /> 11/25/1997 NP 11 10 -- -954 -026 <50 <0 5 <0 5 <0 5 <0 5 <5 <br /> 3/19/1998 P 480 - -324 630 <50 <0 5 <0 5 <0 5 <0 5 320 0 9 <br /> 6/24/1998 NP 676 -- -520 -196 <50 <0 5 <0 5 <0 5 <0 5 <5 22 <br /> 9/10/1998 NP 859 -- -703 -183 <50 <0 5 <0 5 <0 5 <0 5 <5 <br /> 12/17/1998 NP 861 705 -002 <50 <05 <0 5 <0 5 <0 5 ISO <br /> 3/10/1999 NP 647 - -491 214 <50 <05 <0 5 <0 5 <0 5 <5 3 7 <br /> 6/22/1999 NP 839 -683 -1 92 <50 <0 5 <0 5 <0 5 <0 5 <5 2 9 <br /> 9/1311999 NP 1007 -- -851 -168 <50 <0 5 <0 5 <0 5 <0 5 127 1 9 <br /> 12/16/1999 NP 999 -- -843 008 <50 <0 5 <0 5 <0 5 <0 5 <2 5 37 <br /> 3/23/2000 NP 531 -375 468 <50 <0 5 <0 5 <0 5 <0 5 <2 5 4 5 <br /> 6/21/2000 NP 749 -593 -218 <50 <0 5 <0 5 <0 5 <0 5 <2 5 01 <br /> Projects/ARCO/2133/Reports/Tables/gwtables2133 As 17 <br />