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Table 2 <br /> Groundwater Elevation and Analytical Data(ARCO) <br /> ARCD Sennco Station#2133 <br /> 2908 Benjamin Hatt Dnve <br /> Stockton California <br /> i <br /> well Depth Product Groundwater Groundwater Ethyl Xylenes <br /> Weil Date Elevation to water Thickness Elevation Elevation TPHg Benzene Toluene benzene (total) MTBE 00 <br /> Number Sampled ft,MSL %TOC ftft,MSL Change(ft) (ugA) (ug/1) (ugA) (ugll) (ug11) (ugA) (-9/1.) <br /> BHD 1 7!2911992 1793 1735 154 8 100 260 21 600 510 <br /> (cont) 10/2911992 1835 — 1777 042 1 800 80 <2 5 110 17 <br /> 1!27!1993 1527 — 1469 308 6 700 270 19 790 300 <br /> 4/2911993 1336 — 12 78 191 7 000 340 <20 610 460 <br /> 815/1993 14 85 — 1427 149 10 000 280 31 930 950 <br /> 11110/1993 1523 — 14 65 038 10 000 220 11 570 420 <br /> 3121/1994 14 36 — 1378 087 8 600 83 14 480 350 <br /> 6127/1994 1430 — 1372 0 06 9 600 110 32 490 420 <br /> 9!2911994 1546 — 1488 t16 7200 170 12 460 340 <br /> 121811994 1499 — 1441 047 8200 160 14 560 640 <br /> 31811895 1281 — 1223 218 6 000 84 62 300 97 <br /> 611/1995 1129 — 1071 152 7100 97 <5 370 250 <br /> 9111/1995 1321 — 1263 1 92 5 600 110 6 340 270 <br /> 12/5/1995 1370 -- 1312 -049 9200 74 <10 470 410 <br /> 911811996 9 38 — -880 432 4200 99 28 360 320 <br /> 6/1811996 950 — 892 -012 5 500 82 <10 430 300 <100 <br /> 9/251/996 11 80 -- 11 22 230 4 600 75 5 5 280 160 <50 <br /> 1514/1996 11 50 — 1092 030 4 500 83 11 350 220 <50 <br /> 3119/1997 P 702 — -644 448 2 300 54 <10 190 100 01 <br /> 6/5/1997 NP 838 — 780 1 36 3 500 39 3 76 12 170 0 2 <br /> 8/1911997 NP 998 -- 940 160 440 79 094 4 5 <0 5 360 0 2 <br /> 11125/1997 NP 1042 — 9 84 -044 1 300 2 8 085 7 9 2 8 220 <br /> 3/20/1998 P 445 — 387 597 490 34 3 37 24 210 5 4 <br /> 6124/1998 P 592 — 534 147 5 500 37 <10 170 46 580 3 0 <br /> 9/10/1998 NP 812 — 754 220 349 319 <0 500 0 542 <0 500 567 <br /> 1211711998 P 770 712 042 ION 25 2 <1 0 109 36 8 627 <br /> 3/1011999 P 6 55 — 597 1 15 432 102 4 500 1 59 173 263 2 3 <br /> 6/22/1999 NP 8 13 -- 755 1 58 162 <0 5 4 5 4 5 <0 5 728 08 <br /> 9113/1999 NP 928 — 870 1 15 420 <05 <0 5 0 956 <0 5 t 410 1 2 <br /> 1211611999 Well box inaccessible <br /> 3/23/2000 P 465 — -407 559 <0 5 <0 5 1 37 0 627 c2 5 09 <br /> 612112000 P 642 — 584 1 77 895 1 33 <0 5 <0 5 <0 5 175 01 <br /> 911312000 NP 837 — 779 195 176 4 98 0 806 1 10 1 17 1 010 2 0 <br /> 12115!2000 P 793 -- 735 044 -500 <0 500 <0 500 <0 500 <0 500 505 073 <br /> 31212001 Well inaccessible <br /> 511012001 P 5 83 — 525 101 0 788 <0 500 1 33 1 25 639 1 4 <br /> 8122!2001 P 8 63 — 805 280 <500 <50 <5 0 <5 0 <50 850 <br /> 1215/2001 p 8 08 — 750 055 <500 <5 0 <5 0 <5 0 <5 0 470 1 84 <br /> 3112J2002 p 605 -- 547 203 <500 <50 <50 <50 <5 0 430 093 <br /> 51512002 P 703 .- -645 -098 95 4 50 <0 50 <0 50 <0 50 170 022 <br /> 9/24/2002 P 892 — 8 34 189 500 37 089 64 0 90 290 029 <br /> 12117/2002 P 786 — 728 1 06 72 <0 50 <0 50 <0 50 <050 78 <br /> 3111312003 p 7 08 650 0 78 69 <0 50 <0 50 4 50 4 50 97 1 02 <br /> 6/172063 P 733 — -675 -025 <100 <1 0 <1 0 <1 0 <1 0 250 060 <br /> Page 23 of 29 <br /> 1 IProject$lARCOT1331Tableslgwtables2t33 xIs <br />