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Tat Pagglot 30 Y <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station#2133 <br /> 2908 Benjamin Holt Dr,Stockton,CA <br /> Well Depth Product Groundwater Groundwater Xylenes <br /> Well Date Elevation to Water Thickness Elevation Elevation TPI-Ig Benzene Toluene Ethylbenzene (total) MtBE DO <br /> Number Sampled (ft,MSL) ft,TOC ft ft,MSL) Change(ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg/L) <br /> 10/8/91 1850 -- -17 92 -0 50 3,000 220 <4 0 210 15 <br /> BHD-1 1/22192 1712 -- -1654 138 4,600 200 240 <10 260 <br /> (cont) 4122192 1639 -1581 073 3,000 130 6 7 200 120 - <br /> 7129192 1793 -- -1735 -1 54 8,100 260 21 600 510 <br /> 10/29/92 1835 -- -17 77 -042 1,800 80 <2 5 110 17 <br /> 1127/93 15 27 -1469 308 6,700 270 19 790 300 <br /> 4/29/93 1336 -1278 1 91 7,000 340 <20 610 460 <br /> 8/5/93 1485 — -1427 -149 10,000 280 31 930 950 <br /> 11/10/93 1523 -- -1465 -038 10,000 220 11 570 420 <br /> 3/21/94 1436 -- -1378 087 8,600 83 14 480 360 <br /> 6/27/94 1430 — -1372 006 9,600 110 32 490 420 - <br /> 9/29/94 1546 -- -1488 -1 16 7,200 170 12 460 340 <br /> 12/8/94 1499 -- -1441 047 8,200 160 14 560 640 <br /> 3/8/95 1281 -1223 218 6,000 84 62 300 97 <br /> 6/1/95 1129 -- -1071 1 52 7,100 97 <5 370 250 <br /> 9/11/95 1321 -- -1263 -1 92 5,600 110 6 340 270 <br /> 12/5/95 1370 -- -1312 -049 9,200 74 <10 470 410 - <br /> 3/18196 938 -880 432 4,200 99 28 360 320 - <br /> 6/18/96 950 -- -892 -012 5,500 82 <10 430 300 <100 <br /> 9/25/96 1180 -- -1122 -230 4,600 75 5 5 280 160 <50 <br /> 12/4196 1150 -- -1092 0 30 4,500 83 11 350 220 <50 -- <br /> 3/19197 P 702 -- -644 448 2,300 54 <10 190 100 - 01 <br /> 6/5/97 NP 838 -- -780 -136 3,500 39 3 76 12 170 0 2 <br /> 8/19197 NP 9 98 -- -940 -160 440 7 9 0 94 <0 5 <0 5 360 0 2 <br /> 11/25197 NP 1042 -- -984 -044 1,300 2 8 0 85 7 9 2 8 220 - <br /> 3/20/98 P 445 -- -387 597 490 34 3 37 24 210 5 4 <br /> 6124/98 P 692 -- -534 -147 5,500 37 <10 170 46 580 30 <br /> 9/10198 NP 812 -- -754 -220 349 319 <0 500 0 542 <0 500 567 <br /> 12/17/98 P 7 70 -- -712 042 1,000 25 2 <1 0 109 368 627 -- <br /> 3/10/99 P 655 -- -597 1 15 432 102 <0 500 1 59 173 263 2 3 <br /> 6122199 NP 813 -7 55 .158 162 <0 5 <0 5 <0 5 <0 5 728 0 8 <br /> 9/13199 NP 928 -- .870 -1 15 420 <0 5 <0 5 0 956 <0 5 1,410 1 2 <br /> 12/16/99 Well box inaccessible <br /> 3/23/00 P 465 -- -407 -- 559 <0 5 <0 5 1 37 0 627 <2 5 0 9 <br /> 6/21/00 P 642 -- -5 84 -177 895 1 33 <0 5 <0 5 <0 5 175 0 1 <br /> 9/13/00 NP 837 -- -779 -195 176 498 0 806 110 1 17 1,010 2 0 <br /> 12/15/00 P 7 93 -- -735 044 <50 0 <0 500 <0 500 <0 500 <0 500 505 073 <br /> 3/2/01 Well inaccessible <br /> 5110/01 P 5 83 — -525 — 101 0 788 <0 500 133 125 639 14 <br />