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Table Pagef 30 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station#2133 <br /> 2906 Benjamin Holt Dr,Stockton,California <br /> Well Depth Product Groundwater Groundwater Total <br /> Date Elevation to Water thickness, Elevation Elevation change TPN-G Benzene Toluene Ethylbenzene Xylenes MTBE DO <br /> Sampled (feet,MSL) (feet,TOC) in feet (feet,MSL) (feet) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) mg/l <br /> 12/4/1996 1293 -- -1064 059 -- - - - <br /> E 3 3/19/1997 P 837 -- -608 4 56 4,400 46 6 46 99 0 2 <br /> (cont) 6/5/1997 P 1006777 1 69 - - 0 2 <br /> 8/19/1997 P 1153 - 924 147 3,900 50 10 41 28 <50 01 <br /> 11/25/1997 P 11 70 <br /> -9 41 017 - - - <br /> 3/20/1998 P 540 -311 6 30 <50 <0 50 <0 50 <0 50 <0 50 <5 0 2 0 <br /> 6/24/1998 742 -- -513 202 - - <br /> 9/10/1998 P 919 - -690 -1 77 1,440 146 3 91 127 5 31 6 51 <br /> 12/17/1998 928 -699 -009 - <br /> 3/10/1999 P 701 472 227 900 4 54 1 68 763 2 45 <5 0 3 3 <br /> 6/22/1999 - 877 - 6 48 -1 75 3 6 <br /> 9/13/1999 P 1078 849 -201 481 1 85 <0 50 244 0 635 <5 0 1 8 <br /> 12/15/1999 1064 835 014 - 8 4 <br /> 3/23/2000 P 595 366 4 69 889 609 0 987 536 305 <2 50 1 5 <br /> 6/21/2000 - 820 5 91 -225 -- 0 3 <br /> 9/13/2000 P 998 - 7 69 -1 78 977 416 0 882 542 1 50 336 1 37 <br /> 12/15/2000 946 — -717 052 - 1 47 <br /> E 4 8/26/1988 233 -- <br /> 11/28/1988 <br /> -11/28/1988 - - - <br /> 2/27/1989 753 29 123 324 <br /> 5/30/1989 - - <br /> 8/22/1989 - 570 <25 44 64 <br /> 12/4/1989 - - <br /> 1/4/1990 1738 - 1505 -- <br /> 2/1/1990 1716 1483 022 - <br /> 2/15/1990 1714 - -1481 002 - <br /> 2/22/1990 1798 - -1565 -0 84 <br /> 3/8/1990 1690 -1457 108 244 182 101 193 <br /> 4/5/1990 1720 - -1487 -030 - <br /> 4/19/1990 1721 - -1488 001 - <br /> 5/10/1990 1754 -1521 033 <br /> 5/24/1990 1749 -- -1516 005 <br /> 6/5/1990 1742 -1509 007 <br /> 6/18/1990 1829 -- 1596 087 <br /> 7/12/1990 1825 -1592 004 <br /> 8/16/1990 1855 - -1622 030 <br />