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Pag*9 of 34 <br /> Table 1 <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 Ethylbenzens (total) MtBE DO <br /> Number Sampled (ft,MSL) (ft,TOC) (ft) (ft,MSL) Change(ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mg/L) <br /> E-11 1/22!92 2000 -1658 173 6,200 220 64 <14 120 -- <br /> (cont) 4122192 1908 -- -1566 092 14,000 570 57 150 510 -- -- <br /> 7/29/92 2064 -1722 -156 21,000 790 36 280 830 - <br /> 10/29/92 2100 -- -1758 -036 6,600 390 <20 68 150 -- — <br /> 1/27/93 1768 -1426 332 51,000 830 180 390 950 -- -- <br /> 4/29/93 1591 -- -1249 177 28,000 530 <100 156 730 -- -- <br /> 815/93 1753 -1411 -162 54,000 540 <130 200 550 -- -- <br /> 11/10/93 1756 - -1414 -003 30,000 290 120 95 280 -- <br /> 3/21194 1720 -1378 036 4,900 220 16 39 170 -- -- <br /> 6/27/94 1704 -- -1362 016 3,400 210 79 22 120 -- <br /> 9/29194 1812 -- -1470 -108 2,200 180 13 24 65 -- <br /> 12/8/94 1773 -- -1431 039 1,800 150 79 25 28 - -- <br /> 3/8/95 1525 -- -1183 248 8,600 85 <17 35 32 -- <br /> 6/1195 1375 - -1033 150 8,900 180 <17 50 71 -- -- <br /> 9/11195 1596 - -1254 -221 7,500 38 <20 32 49 -- - <br /> 1215/95 1634 -- -1292 -038 1,100 13 <8 6 5 -- <br /> 3/18/96 1100 -758 534 2,000 24 <0 5 43 65 -- <br /> 6/18/96 1205 -- -863 -105 620 11 9 32 32 <5 -- <br /> 9/25/96 1445 -- -1103 -240 400 4 <0 5 1 5 33 <5 -- <br /> 1214/96 1393 -- -1051 052 280 35 <0 5 1 4 2 <5 -- <br /> 3/19/97 NP 950 -608 443 <50 <0 5 <0 5 <0 5 <0 5 — 1 1 <br /> 6/5/97 NP 11 17 -775 -167 <50 <0 5 <0 5 <0 5 <0 5 <5 15 <br /> 8/19/97 NP 1264 -- -922 -147 <50 <0 5 <0 5 <0 5 <0 5 <5 17 <br /> 11/25/97 NP 1285 -- -943 -021 <50 <0 5 <0 5 <0 5 <0 5 <5 -- <br /> 3/19/98 NP 657 -315 628 <50 <0 5 <0 5 <0 5 <0 5 <5 32 <br /> 6124198 NP 866 - -524 -209 <50 <0 5 <0 5 <0 5 <0 5 <5 14 <br /> 9110198 NP 1030 - -688 -164 <50 <0 5 <0 5 <0 5 <0 5 <5 -- <br /> 12/17/98 NP 1036 -- -694 -006 <50 <0 5 <0 5 <0 5 <0 5 <5 -- <br /> 3/10199 NP 819 -- -477 217 <50 <0 5 <0 5 <0 5 <0 5 <5 39 <br /> 6122199 NP 1019 677 -200 <50 <0 5 <0 5 <0 5 <0 5 <5 36 <br /> 9/13199 NP 1184 - -842 -165 <50 <0 5 <0 5 <0 5 <0 5 <5 1 9 <br /> 12/16/99 NP 1182 840 002 <50 <0 5 <0 5 <0 5 <0 5 <2 5 63 <br /> 3/23100 NP 710 -- -368 472 <50 <0 5 <0 5 <0 5 <0 5 <2 5 19 <br /> 6121/00 NP 935 — .593 -225 <50 <0 5 <0 5 <0 5 <0 5 <2 5 1 5 <br /> 9113100 NP 11 11 - -769 -176 <50 <0 5 <0 5 <0 5 <0 5 <2 5 131 <br /> 12/15/00 P 1058 - -716 053 <50 0 <0 500 <0 500 <0 500 <0 500 <2 50 117 <br /> Projects/ARCO/2133/ReportslTabfes/gwtables2l33 As <br />