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TABLE 1 (continued) <br /> Casing Depth Groundwater LPH Concentration( /L) <br /> Well Elevation to Water Elevation Thickness Ethyl- <br /> No Date (ft msl) (ft) (ft ms]) (ft) Benzene Toluene benzene X tenes TPH-g MTBE <br /> RW2 02/23/93 8 13 2971 -2158 000 130 580 1,000 2,000 9,700 -- <br /> 05/18/93 2830 -20 17 000 420 1,400 750 2,400 16,000 -- <br /> 08/22/93 2857 -2044 000 330 1,100 620 1,900 15,000 -- <br /> 12/30/93 2788 -1975 000 620 870 690 2,600 26,000 - <br /> 02/17/94 2749 -1936 000 170 140 150 540 5,600 -- <br /> 05/10/94 2717 -1904 000 230 750 410 1,100 10,000 -- <br /> 08/02/94 2865 -2052 000 -- -- -- -- -- <br /> 11/01/94 2899 -2086 000 -- -- -- -- -- <br /> 02/17/95 2644 -1831 000 220 680 460 1,400 11,000 -- <br /> 05/11/95 2383 -1570 000 350 670 560 1,500 12,000 -- <br /> 08/24/95 25 19 -1706 000 200 420 430 1,000 12,000 -- <br /> 10/19/95 2566 -1753 000 240 360 430 1,200 9,500 <50 <br /> 02/13/96 2342 -1529 000 170 370 400 1,100 11,000 -- <br /> 04/18/96 21 10 -1297 000 180 280 350 880 9,600 74 <br /> 08/08/96 2228 -1415 000 160 360 470 1,100 7,800 <50 <br /> 11/04/96 2268 -1455 000 230 I80 460 980 10,000 290 <br /> 02/03/97 1822 -1009 000 170 120 270 640 6,100 240 <br /> 05/08/97 676 1775 -1099 000 160 130 330 540 7,400 260 <br /> 08/26/97 1953 -1277 000 190 170 320 450 7,000 110 <br /> 11/11/97 2007 -13 31 000 200 170 370 610 7,200 350 <br /> 03/03/98 1447 -771 000 92 160 300 590 6,000 260 <br /> 03/03/98 <14* <br /> RW3 05/22/90 889 3095 -2206 000 16,000 41,000 5,500 31,000 160,000 -- <br /> 12/19/90 3302 -2368 061 Not sampled-LPH <br /> 01/30/91 3373 -2412 098 Not sampled-LPH <br /> 05/02/91 3275 -2347 054 Not sampled-LPH <br /> 07/16-17/91 3372 -2449 047 Not sampled-LPH <br /> 10/15/91 3527 -2558 1 10 Not sampled-LPH <br /> 01/28/92 3269 -2370 014 Not sampled-LPH <br /> XLST3942 Q39B TI I Page l9 <br />