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i <br /> Table 1 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station 42133 <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 TPI-Ig Benzene Toluene benzene (total) MtBE 00 <br /> Number Sampled (ft,MSL) (ft,TOC) (ft) ft,MSL) Change(ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg/L) <br /> E-2 8/5/1993 1710 -- -1424 -167 2,300 45 <5 12 5 <br /> (cont) 11/10/1993 -- -- -- -- - __ - - - <br /> 3/21/1994 1680 — -1394 -- 1,000 13 8 7 6 <br /> 6/27/1994 1658 -- -1372 022 1,200 94 95 92 7 6 <br /> 9129/94 -- .. _ -- _ <br /> 12/8/1994 1720 — -1434 -- 600 12 38 47 4 <br /> 3/8/1995 1485 -- -1199 235 1,300 75 4 17 73 <br /> 6/1/1995 1321 -- -1035 164 1,800 25 26 40 52 <br /> 9/11/1995 1549 -- -1263 -228 1,500 9 <3 22 5 <br /> 12/5/1995 1582 -- -1296 -033 660 3 <4 4 1 <br /> 3/18/1996 1068 - -782 514 730 5 6 27 15 13 -- <br /> 6/18/1996 1155 - -869 -087 550 54 1 2 11 10 10 <br /> 9/25/1996 1410 -1124 -255 1,200 13 <05 23 24 10 <br /> 12/4/1996 1350 -1064 060 680 64 <05 24 27 8 7 <br /> 3/19/1997 NP 897 -- -611 453 <50 <05 <0 5 <0 5 <0 5 <5 0 4 <br /> 6/5/1997 NP 1065 -779 -168 82 <05 <0 5 <0 5 <0 5 <5 0 5 <br /> 8/19/1997 NP 1211 -925 -146 240 <0 5 <0 5 <0 5 <0 5 <5 04 <br /> 11/25/1997 NP 1225 -- -939 -014 280 <0 5 <0 5 085 <0 5 <5 - <br /> 3/19/1998 NP 603 -- -317 622 <50 <0 5 <0 5 <0 5 <0 5 27 1 6 <br /> 6/24/1998 NP 806 -- -520 -203 <50 <0 5 <0 5 <0 5 <0 5 <5 1 5 <br /> 9/10/1998 NP 978 -- -692 -172 <50 <0 5 <05 <0 5 <0 5 <5 <br /> 12/17/1998 NP 985 -- -699 -007 <50 <0 5 <0 5 <0 5 <0 5 <5 - <br /> 3/10/1999 NP 762 - -476 223 <50 <0 5 <05 <0 5 <0 5 <5 28 <br /> 6/22/1999 NP 963 -- -677 -201 <50 <0 5 <0 5 <0 5 <0 5 <5 3 8 <br /> 9/13/1999 NP 1129 -- -843 -166 <50 <0 5 <05 <0 5 <0 5 <5 21 <br /> 12/1611999 NP 1121 -- -835 008 <50 <0 5 <0 5 <0 5 <0 5 259 - <br /> 3/23/2000 NP 652 - -366 469 <50 <0 5 <0 5 <0 5 <0 5 <2 5 35 <br /> 6/21/2000 NP 877 -591 -225 <50 <0 5 <0 5 <0 5 <0 5 <2 5 2 0 <br /> 9/13/2000 NP 1064 -- -778 -187 <50 <0 5 <0 5 <0 5 <0 5 286 1 20 <br /> 12/15/2000 P 1001 -- -715 063 520 <0 500 <D 500 1 27 1 37 <2 50 082 <br /> 3/2/2001 P 796 - -510 205 667 <0 500 <0 500 1 39 202 <2 50 38 <br /> 5/10/2001 Well inaccessible <br /> 8/20/2001 1080 -- -794 - <50 <0 50 <050 <0 50 <0 50 <2 5 - <br /> 12/5/2001 P 992 -- -706 088 61 <0 50 <0 50 1 2 1 1 41 082 <br /> Projects/ARCO/2133/Reports/Tables/gwtables2133 xls 2 <br />