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Table 2 <br /> Groundwater Elevation and Analytical Data(ARCO) <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) (t%MSL) Change(ft) (ugA) (ugA) (ugA) (ugA) (ugA) (ug/1) (mg/L) <br /> 3121/94 1436 1378 087 8 600 83 14 480 360 <br /> 6127194 1430 1372 0 06 9,600 110 32 490 420 <br /> BHO 1 9129194 1546 1488 1 16 7200 170 12 460 340 <br /> (cant) 1218194 1499 1441 047 8 200 160 14 560 640 <br /> 318195 12 81 1223 218 6 000 84 62 300 97 <br /> 6/1/95 1129 1071 152 7 100 97 <5 370 250 <br /> 9/11195 1321 1263 192 5 600 110 6 340 270 <br /> 12/5/95 1370 1312 049 9200 74 <10 470 410 <br /> 3/18/96 938 880 432 4200 99 28 360 320 <br /> 6118/96 950 8 92 012 5,500 82 <10 430 300 <100 <br /> 9125/96 1180 1122 230 4 600 75 55 280 160 <50 <br /> 1214/96 1150 1092 030 4,500 83 11 350 220 <50 <br /> 3/19/97 P 702 644 448 2 300 54 <10 190 100 01 <br /> 6/5197 NP 8 38 — 780 1 36 3 500 39 3 76 12 170 02 <br /> 8/19197 NP 998 — 940 160 440 79 094 <05 <05 360 02 <br /> 11/25197 NP 1042 — 984 -044 1 300 28 085 79 28 220 <br /> 3!20198 P 445 — 387 597 490 34 3 37 24 210 54 <br /> 6124/98 P 592 5 34 1 47 5 500 37 <10 170 46 580 so <br /> 9110198 NP 812 754 220 349 319 <0 500 0 542 <0 500 567 <br /> 12117198 P 770 -712 042 1,000 252 <1 0 109 368 627 — <br /> 3110/99 P 655 597 1 15 432 102 <0 500 159 173 263 23 <br /> 6122!99 NP 813 -755 1 58 162 <0 5 <0 5 <0 5 <0 5 728 08 <br /> 9113199 NP 928 870 1 15 420 <0 5 <0 5 09-56 <0 5 1 410 1 2 <br /> 12/16/99 Well box Inacoessible <br /> 3123100 P 465 407 — 559 <0 5 <0 5 1 37 0 627 <2 5 0 9 <br /> 6/21100 P 642 584 177 895 1 33 <0 5 <0 6 <0 5 175 01 <br /> 9/13100 NP 837 779 195 176 498 0 806 1 10 1 17 1,010 20 <br /> 12/15/00 P 793 735 044 <50 0 <0 500 <0 500 <0 500 <0 500 505 073 <br /> 312101 Well Inaccessible <br /> 5/10/01 P 583 -525 101 0 788 <0 500 133 125 639 14 <br /> 6/22101 P 863 805 280 <500 <5 0 <5 0 <50 <50 850 <br /> 1215/01 P 8 08 -750 055 <500 <5 0 <50 <50 <5 0 470 1 84 <br /> 3112/02 P 605 547 2 03 <500 <50 <50 <5 0 <5 0 430 093 <br /> 6/6/02 P 703 645 09S 95' <0 50 <0 50 <0 50 <050 170 022 <br /> 9/24/02 P 892 8 34 189 500' 37 089 64 090 290 029 <br /> 12/17/02 P 786 728 106 72 <0 50 <0 50 <0 50 <0 50 78 <br /> 311 am P 708 — 650 078 69 <0 50 <050 <0 50 <050 97 102 <br /> 6117103 P 733 675 025 <100 <1 0 <1 0 <1 0 <10 250 060 <br /> 9124103 a P 908 850 175 <500 <5 0 <50 <50 <5 0 430 031 <br /> i <br /> I <br /> I 1ProjectstiARC0121331Tableslpwtables2133 Pape 28 of 36 <br />