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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( /L)
<br /> Well Elevation to Water Elevation Thickness Ethyl-
<br /> NuEnberDate (feet) (feet) (feet) (feet) Benzene Toluene benzene Xylenes TPH-g MTBE
<br /> RW2 05/02/91 8 13 3097 -2284 000 1,600 3,400 1,600 7,900 32,000 --
<br /> RW2 07116-17191 8 13 3195 -23 82 000 600 1,900 730 3,900 21,000 --
<br /> RW2 10/15/91 8 13 32 53 -2440 000 510 2,700 720 3,300 22,000 --
<br /> RW2 01/28/92 8 13 3076 -22 63 000 260 1,200 590 2,500 17,000 --
<br /> RW2 04/30/92 8 13 Not accessible -- -- __ __ __ _
<br /> RW2 08/13/92 8 13 3247 -2434 000 130 630 280 1,100 8,500 --
<br /> RW2 1M8/92 8 13 33 03 -2490 000 130 630 250 1,400 11,000 --
<br /> RW2 02/23/93 8 13 2971 -2158 000 130 580 1,000 2,000 9,700 --
<br /> RW2 05/18/93 8 13 2830 -20 17 000 420 1,400 750 2,400 16,000 --
<br /> RW2 08/22/93 8 13 2857 -2044 000 330 1,100 620 1,900 15,000 --
<br /> RW2 12/30/93 8 13 2788 -1975 000 620 870 690 2,600 26,000 --
<br /> RW2 02/17/94 8 13 2749 -1936 000 170 140 150 540 5,600 --
<br /> RW2 05/10/94 8 13 27 17 -1904 000 230 750 410 1,100 10,000 --
<br /> RW2 08/02/94 8 13 2865 -2052 000 -- -- -- -- --
<br /> RW2
<br /> -RW2 11/01/94 8 13 2899 -2086 000 -- -- -- -- -_
<br /> RW2 02/17/95 8 13 2644 -1831 000 220 680 460 1,400 11,000 --
<br /> RW2 05/11/95 8 13 23 83 -1570 000 350 670 560 1,500 12,000 --
<br /> RW2 08/24/95 8 13 25 19 -1706 000 200 420 430 1,000 12,000 --
<br /> RW2 10/19/95 8 13 25 66 -1753 000 240 360 430 1,200 9,500 <50
<br /> RW2 02/13/96 8 13 2342 -1529 000 170 370 400 1,100 11,000 --
<br /> RW2 04/18/96 8 13 21 10 -1297 000 180 280 350 880 9,600 74
<br /> RW2 08/08/96 8 13 22 28 -14 15 000 160 360 470 1,100 7,800 <50
<br /> RW2 11/04/96 8 13 22 68 -14 55 000 230 180 460 980 10,000 290
<br /> RW2 02/03/97 8 13 18 22 -1009 000 170 120 270 640 6,100 240
<br /> RW2 05/08/97 676 1775 -1099 000 160 130 330 540 7,400 260
<br /> RW2 08/26/97 676 1953 -1277 000 190 170 320 450 7,000 110
<br /> RW2 11/11/97 676 2007 -1331 000 200 170 370 610 7,200 350
<br /> RW2 03/03/98 676 1447 -771 000 92 160 300 590 6,000 260
<br /> RW2 03/03/98 676 <14*
<br /> RW2 05/20/98 676 14 35 -759 000 130 140 310 560 6,600 250
<br /> RW2 05/20/98 676 L <14*
<br /> RW2 08119198 676 15 86 -9 10 000 100 160 330 800 7,500 1,700
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