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TABLE 1 (continued) <br /> Casing Depth Groundwater LPH Concentration (pg/L) <br /> Well Elevation to Water Elevation Thickness Ethyl- <br /> No Date ft ms]) ft ft msl) (ft) Benzene Toluene benzene Xylenes TPH- <br /> i <br /> MWS 02/09/89 9 58 25 09 -1551 000 3 4 12 15 22 1,250 <br /> 05/31/89 2672 -1714 000 <0 5 14 24 46 790 <br /> 08/17/89 2844 -1886 000 10 29 13 12 1,200 <br /> 12/19/89 2945 -1987 000 Ns NS NS NS NS <br /> Well dry since 03/21/90 <br /> 12/30/93 2990 -2032 000 NS NS NS NS NS <br /> 02/I7/94 2954 -1996 000 NS NS NS NS NS <br /> 05/10/94 29 13 -1955 000 Ns NS NS NS NS <br /> 08/02/94 Well dry <br /> M W6 07/16/87 892 1935 -1043 000 3,100 4,300 1,200 6,600 12,000 <br /> 04/11/88 2304 -1367 062 Not sampled-LPH <br /> 09/13/88 25 12 -1620 000 19,000 17,000 2,300 12,000 65,000 <br /> 11/16/88 2551 -1658 001 19,000 19,000 3,000 12,000 83,000 <br /> 02/09/89 2485 -1593 Sheen Not sampled-LPH <br /> 05/31/89 2657 -1765 000 20,000 33,000 3,100 23,000 120,000 <br /> 08/17/89 2836 -1944 000 16,000 15,000 2,900 19,000 98,000 <br /> 12/19/89 28 80 -1988 000 NS NS NS NS NS <br /> Well dry since 03/21/90 <br /> MW7 07/16/87 835 18 11 -976 000 78 35 32 67 8 1,000 <br /> 04/11/88 2121 -1286 000 26 <2 0 10 <40 1,200 <br /> Well dry since 07/12/88 <br /> 12/30/93 Not accessible NS NS NS NS NS <br /> 02/17/94 Not accessible NS Ns NS NS NS <br /> 05/10/94 Not accessible NS NS NS NS NS <br /> 08/02/94 Not accessible NS NS NS NS N5 <br /> MW8 04/11/88 778 20 25 -1247 000 740 18,000 5,700 32,000 120,000 <br /> 09/13/88 2258 -1480 000 470 11,000 3,900 20,000 56,000 <br /> 11/16/88 2272 -1494 000 <500 9,300 3,600 16,000 63,000 <br /> 02/09/89 2228 -1450 000 650 13,000 3,900 21,000 62,500 <br /> XCL73942QS94T I 1 Page 4 <br />