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<br /> TABLE 2 GROUNDWATER MONITORING DATA,FORMER EXXON RS 7-3942,4444 NORTH PERSHING AVENUE,STOCKTON,CALIFORNIA
<br /> Casing Depth Groundwater LPH _ Concentration(gg/L)
<br /> Well Elevation to Water Elevation Thickness Ethyl-
<br /> Number Date feet feet feet (feet)_ Benzene Toluene benzene Xylenes TPH-g MTBE
<br /> MW8 08/02/94 778 2729 -1951 000 290 1,900 1,900 7,500 28,000 --
<br /> MW8 11/01/94 778 2764 -1986 000 460 1,700 3,700 14,000 56,000 --
<br /> MW8 02/17/95 778 2500 -1722 000 500 3,900 4,000 15,000 72,000 --
<br /> MW8 05/11/95 778 2242 -14 64 000 680 5,900 4,700 19,000 80,000 --
<br /> MW8 08/24/95 778 2377 -1599 000 520 4,700 4,800 17,000 65,000 --
<br /> MW8 10/19/95 778 2437 -1659 000 150 1,400 2,400 8,600 52,000 <250
<br /> MW8 02/13/96 778 22 15 -1437 000 190 2,100 2,600 10,000 57,000 --
<br /> MW8 04/18/96 778 1980 -12 02 000 130 1,700 2,400 9,400 43,000 <125
<br /> MW8 08/08/96 778 21 11 -1333 000 200 2,700 3,300 13,000 46,000 <250
<br /> MW8 11/04/96 7 78 2155 -1377 000 160 1,700 2,700 9,600 48,000 <250
<br /> MW8 02/03/97 7 78 1678 -900 000 <100 1,400 2,500 9,900 42,000 <120
<br /> MW8 05/08/97 645 1666 -1021 000 110 880 2,100 7,800 41,000 120
<br /> MW8 08/26/97 645 1846 -1201 000 93 950 2,200 7,500 35,000 150
<br /> MW8 11/11/97 645 1898 -1253 000 <50 700 2,500 9,100 36,000 <250
<br /> MW8 11/11/97 645 69*
<br /> MW8 03/03/98 645 13 02 -657 000 <50 780 1,900 6,500 26,000 <250
<br /> MW8 03/03/98 645 <100*
<br /> MW8 05/20/98 645 1336 -691 000 71 200 2,000 4,600 31,000 <125
<br /> MW8 05/20/98 6 45 43*
<br /> MW8 08/19/98 6 45 1491 -846 000 77 1,300 2,300 7,800 31,000 310
<br /> MW8 08/19/98 645 <100*
<br /> MW8 11/18/98 645 15 15 -870 000 38 220 2,900 7,100 27,000 <125
<br /> MW8 03/30/99 645 1330 -6 85 000 -- -- -- -- -- --
<br /> MW8 05/05/99 645 1367 -722 000 188 78 9 1,580 3,000 19,100 46 1
<br /> MW8 08/20/99 645 15 15 -870 000 -- -- -- -- -- --
<br /> MW8 12/06/99 645 15 25 -880 000 -- -- -- -- -- --
<br /> MW8 02/29/00 645 1276 -631 000 31 110 1,100 2,330 10,000 42
<br /> MW8 05/16/00 645 1297 -652 000 -- -- -- -- -- --
<br /> MW8
<br /> -
<br /> MW8 09111/00 645 -- -- -- -- -- -- -- -- --
<br /> MW8 12/13/00 645 1520 -875 000 31 11 410 3675 4,200 37
<br /> MW8 12/13/00 645 22*
<br /> MW8 03/08/01 645 1431 -786 000 15 44 880 1,545 13,000 19
<br /> MW8 06/21/01 645 1567 -922 000 13 61 240 580 5,700 17
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