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Table 1 9Paof 26 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station#2133 <br /> 2908 Benjamin Holt Dr,Stockton,California <br /> Well Depth Product Groundwater Groundwater Total <br /> Date Elevation to Water thickness, Elevation Elevation change TPH G Benzene Toluene Ethylbenzene Xylenes MTBE DO <br /> Sampled (feet,MSL) (feet,TOC) in feet (feet,MSL) (feet) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) mgll <br /> E-11 10111/90 2003 - -1661 -009 - - — - — <br /> (cont) 1216190 1897 — -15 55 1 06 -- -- -- -- -- <br /> 2/12191 1953 -1611 -0 56 1,400 120 13 21 300 -- <br /> 2125191 1940 -1598 013 -- -- — -- — <br /> 4123191 1856 — -1514 0 84 400 22 <0 5 1 7 11 - <br /> 7116191 22 19 -1877 -363 4,100 420 35 40 360 -- <br /> 1018/91 21 73 -1831 046 5,700 410 19 62 380 - <br /> 1122192 20 00 -1658 1 73 6,200 220 64 <14 120 - <br /> 4122192 1908 -1566 092 14 000 570 57 150 510 -- <br /> 7129192 20 64 -1722 156 21 000 790 36 280 830 - <br /> 10129192 21 00 -1758 -036 6 600 390 <20 68 150 <br /> 1127193 1768 -1426 332 51 000 830 180 390 950 - <br /> 4l29l93 1591 -1249 1 77 28 000 530 <100 156 730 <br /> 815193 1753 14 11 162 54 000 540 <130 200 550 11/10193 17 56 -- 1414 -003 30 000 290 120 95 280 <br /> 3121194 1720 - -1378 036 4,900 220 16 39 170 — <br /> 6127194 1704 -1362 016 3 400 210 79 22 120 - <br /> 9129194 1812 -1470 108 2200 180 13 24 65 - <br /> 1218/94 1773 — -1431 0 39 1,800 150 7 9 25 28 -- — <br /> 318195 1525 -11 83 2 48 8,600 85 <17 35 32 -- — <br /> 611195 13 75 — -1033 1 50 8 900 180 <17 50 71 - <br /> 9111/95 1596 -- -1254 -221 7,500 38 <20 32 49 — <br /> 1215195 1634 -- -1292 -038 1,100 13 <8 6 5 — -- <br /> 3118196 11 00 -- -7 58 534 2000 24 <05 43 6 5 — <br /> 6118196 1205 — -863 -105 620 11 9 32 3 2 <5 <br /> 9125196 1445 — -11 03 -2 40 400 4 <0 5 15 3 3 <5 — <br /> 1214196 1393 -1051 052 280 3 5 <0 5 14 2 <5 -- <br /> 3/19197 NP 950 -6 08 4 43 <50 <0 5 <0 5 <0 5 <0 5 — 105 <br /> 615197 NP 11 17 -7 75 -167 <50 <05 <05 <05 <05 <5 1 46 <br /> 8119197 NP 1264 - -922 -1 47 <50 <0 5 <05 <05 <0 5 <5 1 67 <br /> 11/25/97 NP 1285 — -943 -0 21 <50 <0 5 <0 5 <05 <0 5 <5 -- <br /> 3119l98 NP 657 -- -315 628 <50 <05 <0 5 <05 <0 5 <5 32 <br /> 6124/98 NP 866 -- -524 -2 09 <50 <0 5 <0 5 <05 <05 <5 1 4 <br /> 9110198 NP 1030 — -688 -164 <50 <0 5 <05 <05 <0 5 <5 ND <br /> 12117198 NP 1036 -- -6 94 -006 <50 <0 5 <0 5 <0 5 <0 5 <5 <br /> 7G600-019-01/GW Tables <br />