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I <br /> Table 1 <br /> Groundwater Elevation and Analytical Data <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 TPH9 Benzene Toluene benzene (total) MtBE DO <br /> Number Sampled (ft,MSL) (ft,TQC) (ft) (ft,MSL) Change(ft) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (mglL) <br /> E 3 4/22/922 dry -- <br /> (cont) 7129192 dry -- <br /> 10/29/92 dry -- -- -- - <br /> 1127193 1669 -1440 -- 57,000 2,700 180 660 1,900 <br /> 4129193 1493 -1264 176 32,000 3,400 140 930 2,500 <br /> 815/93 1670 -- 1441 177 27,000 1,800 69 670 1,400 - - <br /> 11/10/93 1714 -1485 044 47,000 1,700 <50 740 2,000 <br /> 3121194 1660 -1431 0 54 24,000 1,500 86 620 1,500 <br /> 6/27/94 1625 -1396 035 19,000 1 500 36 670 1,400 <br /> 9/29/94 1704 -1475 079 24,000 1,600 77 630 1,300 - <br /> 12/8/94 1668 1439 036 21,000 2,700 58 890 1,900 <br /> 3/8/95 1420 - -1191 248 94,000 1,600 130 640 2,600 <br /> 611/95 1268 -1039 152 58,000 1,900 24 590 2,500 <br /> 9111/95 1501 -1272 233 29,000 1,900 <50 640 1,900 <br /> 12/5/95 1522 -1293 021 - -- -- -- -- <br /> 3/18/96 1040 -811 482 15,000 480 12 390 660 -- - <br /> 6/18/96 1105 -876 065 -- -- -- -- -- -- <br /> 9/25196 1352 -1123 -247 7,600 160 <5 160 300 <50 <br /> 1214/96 1293 -1064 059 - -- -- -- -- -- - <br /> 3/19/97 P 837 -608 456 4,400 46 6 46 99 02 <br /> 6/5197 P 1006 -777 1 69 -- -- -- - -- -- 0 2 <br /> 8119197 P 1153 -924 147 3,900 50 10 41 28 <50 01 <br /> 11/25/97 P 1170 - -941 -017 -- - - -- -- -- -- <br /> 3/20198 P 540 -311 630 <50 <0 50 <0 50 <0 50 <0 50 <50 20 <br /> 6/24/98 742 -513 202 -- -- -- - - -- -- <br /> 9/10/98 P 919 -690 177 1,440 146 391 127 531 651 -- <br /> 12/17/98 928 -699 009 -- -- -- - -- -- -- <br /> 3/10/99 P 701 -472 227 900 454 1 68 7 63 245 <50 33 <br /> 6/22199 877 -648 -1 76 -- - -- - -- -- 3 6 <br /> 9/13/99 P 1078 - -849 -201 481 1 85 <0 50 244 0 635 <5 0 1 8 <br /> 12/15/99 1064 - -835 014 -- - -- -- -- -- 84 <br /> 3123100 P 595 -366 469 889 609 0 987 536 305 <2 50 1 5 <br /> 6121100 820 - -591 -225 -- -- - -- -- -- 03 <br /> 9/13/00 P 998 769 -1 78 977 416 0 882 542 1 50 336 137 <br /> Prolects/ARCO/2133/Reports/Tables/gwtables2133 As 4 <br />