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s � � � W � � � � � � �Ilc � <br /> TABLE 2 GAUGING DATA AND ANALYTICAL RESULTS, FORMER EXXON RS 7-3942, STOCKTON, CALIFORNIA, 1987-1993 <br /> Casing Depth Groundwater LPH Concentration ( IL) <br /> Well Elevation to Water Elevation Thickness Ethyl- <br /> No Date (ft msl) (ft) (ft msl) (ft) Benzene Toluene benzene Xylenes TPH- <br /> IW1 01/30/91 7 80 30 22 -22 42 000 240 44 350 820 3,500 <br /> 05/02/91 30 11 -22 31 0 00 150 25 230 520 2,500 <br /> 07116-17/91 3107 -23 27 0 00 NS NS NS NS NS <br /> 10/15/91 31 65 -23 85 0 00 120 36 280 390 3,400 <br /> 01/28/92 29 91 -22 11 000 130 25 330 500 3,600 <br /> 04/30/92 29 49 -21 69 000 NS NS NS NS NS <br /> 08/13/92 31 53 -23 73 000 19 3 7 50 70 650 <br /> 10/08/92 32 13 -24 33 0 00 NS NS NS NS NS <br /> 02/23/93 2878 -20 98 000 NS NS NS NS NS <br /> 05/18/93 NS NS NS NS NS <br /> MWl 01187 7 76 -- -- -- < 1 < 1 NA < 1 <50 <br /> 07/16/87 17 44 -9 68 1 32 <0 5 1 5 <0 5 <0 50 <100 <br /> 04/11/88 2051 -1275 000 <05 <05 <05 <05 < 100 <br /> 09/13/88 2218 -1442 000 19 25 <05 <05 70 <br /> 11/16/88 2307 -15,31 000 <05 95 <05 <05 130 <br /> 02/09/89 22 64 -14 88 000 17 0 2 02 0 6 <250 <br /> 05/31/89 2926 -21 50 0 00 <05 <05 <0 5 0 8 <250 <br /> 08/17/89 25.87 -18 11 0 00 <0 5 <0 5 <0 5 <05 <250 <br /> 12/19/89 29 22 -21 46 0 00 <0 5 1 9 <05 <0 5 <250 <br /> 03/21/90 2746 -1970 000 <05 <05 08 29 80 <br /> 05/17/90 28 24 -20 48 0 00 <05 4 5 <0 5 <0 5 120 <br /> 09/25/90 29 59 -21 83 000 <0 5 7 0 1 0 4 7 170 <br /> 12/19/90 Dry NS NS NS NS NS <br /> 01/30/91 Dry NS NS NS NS NS <br /> 05/02/91 Dry NS NS NS NS NS <br /> 07/16-17/91 Dry NS NS NS NS NS <br /> XCLn3942(2)/ROI693fM I Page 1 <br />