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f <br /> TABLE 1 GROUNDWATER MONITORING DATA, FORMER EXXON RS 7-3942,4444 NORTH PERSHING AVENUE, STOCKTON, CALIFORNIA <br /> Casing Depth Groundwater LPH Concentration ( /L) <br /> Well Elevation to Water Elevation Thickness Ethyl- <br /> No Date (feet ms]) (feet) (feet ms]) (feet) Benzene Toluene benzene Xylenes TPH-g MTBE <br /> MW2 09/13/88 8 77 2432 -15 55 000 600 62 520 1,900 7,400 <br /> MW2 11/16/88 877 24 47 -15 70 000 840 140 650 1,600 10,000 -- <br /> MW2 02/09/89 877 2902 -2025 000 480 55 660 1,700 7,200 -- <br /> MW2 05/31/89 877 25 69 -1692 000 680 62 800 3,100 17,000 -- <br /> MW2 08/17/89 877 27 33 -1856 000 2,100 430 350 1,700 15,000 -- <br /> MW2 12/19/89 877 2768 -1891 000 -- -- -- -- -- <br /> MW2 877 Well dry since 03/21/90 <br /> MW2 05/11/95 877 2419 -1542 000 34 41 83 1,000 5,200 -- <br /> MW2 08/24/95 8 77 22 80 -1403 000 80 <5 0 150 130 2,800 -- <br /> MW2 10/19/95 8 77 2599 -1722 000 24 <5 0 48 13 1,300 <25 <br /> MW2 02/13/96 8 77 23 84 -1507 000 49 <2 5 65 17 1,300 -- <br /> MW2 04/18/96 8 77 2098 -1221 000 -- -- -- -- -- -- <br /> MW2 08/08/96 8 77 2275 -13 98 000 19 <0 5 41 11 490 6 8 <br /> MW2 11/04/96 877 22 77 -1400 000 25 <0 5 65 14 810 2I <br /> MW2 02/03/97 877 1861 -984 000 -- -- -- -- -- -- <br /> MW2 05/08/97 749 1825 -1076 000 12 <0 5 1 1 <0 5 73 <2 5 <br /> MW2 08/26/97 749 2003 -1254 000 -- -- -- -- -- -- <br /> MW2 11/11/97 749 2056 -1307 000 3 2 <0 5 3 4 0 71 160 5 2 <br /> MW2 03/03/98 749 1490 -741 000 14 <0 5 1 2 <0 5 110 3 3 <br /> MW2 03/03/98 749 <2 0* <br /> MW2 05/20/98 749 1486 -737 000 15 <0 5 1 1 <0 5 110e 4 1 <br /> MW2 05/20/98 749 <2 0* <br /> MW2 08/19/98 749 1636 -887 000 <0 5 2 1 12 <0 5 110 <2 5 <br /> MW2 08/19/98 749 <2 0* <br /> MW2 11/18/98 749 1673 -924 000 -- -- -- -- -- <br /> MW2 <br /> -MW2 03/30/99 749 -- -- -- -- -- -- -- -- <br /> MW2 05/05/99 749 1520 -771 000 -- -- -- -- -- - <br /> t <br /> 1JMOJLLts1739421111astLO"p�q%i0942gw xls Paae�of 47 <br />