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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 msl) (ft) Benzene Toluene benzene Xylenes TPH- <br /> V3 04/30/92 899 33 15 -24 16 0 00 390 15,000 2,800 15,000 62,000 <br /> 08/13/92 35 32 -26 33 0 00 620 17,000 4,800 23,000 110,000 <br /> 10/08/92 35 96 -26.97 0 OQ 430 11,000 3,200 17,000 100,000 <br /> 02/23/93 32.55 -23 56 0.0$ Ns Ns Ns Ns Ns <br /> V4 05/02/91 9 38 32 10 -22 68 0 05 31,000 58,000 5,700 29,000 200,000 <br /> 07/16-17191 33 06 -23 65 004 Not sampled - LPH <br /> 10/15/91 33 74 -2434 0 03 Not sampled - LPH <br /> 01/28/92 31 92 -22 54 Sheen 23,000 63,000 5,300 27,000 220,000 <br /> 04/30/92 31 48 -22 09 0 01 Not sampled - LPH <br /> 08/13/92 33 60 -24 17 007 <br /> Not sampled - LPH <br /> 10/08/92 34 20 -24 73 0 12 Not sampled - LPH <br /> 02/23/93 30.85 -21.47 0.00 15,000 35,000 4,300 23,000 150,000 <br /> Trip 02/23/93 <0.5 <0.5 <0.5 <0.5 <50 <br /> Blank <br /> Rinse 02/23/93 <0.5 <0.5 <0.5 <0.5 <50 <br /> Blank <br /> a Water in well may be residual water in end cap. <br /> NA Laboratory method was not performed. <br /> NS Well was not sampled. <br /> -- Measurement was not taken. <br /> Note Groundwater elevations adjusted for LPH, when present <br /> Data from 1/87 from HLA <br /> XCLn3942(2)IQ293lr1 i Page t l <br />