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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 MSI) ft ft msl ft Benzene Toluene benzene Xylenes TPH- <br /> MW10 09/25/90 8 61 33 95 -25 34 000 13,000 9,900 2,700 8,900 71,000 <br /> 12/19/90 33 79 -25 18 000 16,000 16,000 3,300 11,000 81,000 <br /> 01/30/91 34 24 -25 63 000 18,000 15,000 2,600 9,900 62,000 <br /> 05/02/91 34 24 -25 63 000 6,900 5,700 2,100 5,900 27,000 <br /> 07/16-17/91 35 13 -26 52 a 000 NS NS NS NS NS <br /> 10/15/91 Dry NS NS NS NS NS <br /> 01/28/92 33 86 -25 25 000 NS NS NS NS NS <br /> 04/30/92 33 52 -2491 000 NS NS NS NS NS <br /> 08/13/92 35 00 -26 39 000 NS NS NS NS NS <br /> 10/08/92 Dry NS NS NS NS NS <br /> 02/23/93 32 85 -2424 000 1,100 17,000 3,300 15,000 91,000 <br /> 05/18/93 31 32 -2271 000 6,200 9,200 1,400 5,300 44,000 <br /> 08/22/93 3170 -23 09 000 7,800 15,000 1,700 7,900 66,000 <br /> 12/30/93 30.79 -22 18 0.00 NS NS NS NS NS <br /> MW11 05/02/91 1015 38 39 -2824 000 <0 3 <03 <0 3 <1 <50 <br /> 07116-17/91 39 38 -29 23 000 <05 <05 <0 5 <05 <50 <br /> 10/15/91 39 94 -29 79 000 <0 5 <0 5 <0 5 <05 <50 <br /> 01/28/92 38 08 -27 93 000 <0 5 <0 5 <0 5 <05 <50 <br /> 04/30/92 37 72 -27 57 000 <0 5 <0 5 <0 5 <0 5 <50 <br /> 08/13/92 39 94 -29 79 000 <05 <0 5 <0 5 <0 5 <50 <br /> 10/08/92 4070 -30 55 000 <0 5 <05 <0 5 <0 5 <50 <br /> 02/23/93 37 28 -27 13 000 <0 5 <0 5 <05 <0 5 <50 <br /> 05/18/93 -- -- -- NS NS NS NS NS <br /> 08/22/93 36 19 -2604 000 NS NS NS NS NS <br /> 12/30/93 Not accessible <br /> MW12 01/30/91 9 16 35 39 -26 23 000 <0 5 <0 5 <0 5 <05 <50 <br /> 05/02/91 35 45 -26 29 000 <03 <03 <0 3 <1 <50 <br /> 07/16-17/91 36 37 -2721 000 <05 <05 <0 5 <0 5 <50 <br /> 10/15/91 3695 -27 79 000 <0 5 <05 <0 5 <0 5 <50 <br /> 01/28/92 3521 -2605 000 <05 06 <0 5 07 <50 <br /> 04130192 34 83 -25 67 0 00 <0 5 <05 <05 <0 5 <50 <br /> XCL73942Q1293 1 Page 6 <br />