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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 msl ft ft MSI) ft Benzene Toluene benzene X lenes TPH- <br /> MW4 07/16/87 8 13 18 15 -1002 000 1,100 <50 850 1,750 4,900 <br /> 04/1I/88 2123 -1310 000 510 <25 490 1,100 8,500 <br /> 09/13/88 2366 -1553 000 860 40 670 2,400 5,600 <br /> 11/16/88 2381 -1568 000 860 340 810 1,000 8,000 <br /> 02/09/89 2355 -1542 000 630 20 530 650 4,800 <br /> 05/31/89 2501 -1688 000 790 35 720 1,300 6,000 <br /> 08/17/89 2650 -1837 000 1,000 45 940 1,100 8,100 <br /> 12/19/89 27 57 -1944 000 190 2,800 1,100 380 7,900 <br /> 03/21/90 28 06 -1993 000 400 6 8 340 160 3,200 <br /> 05/17/90 28 87 -2074 000 300 40 150 93 3,500 <br /> 01/28/92 Dry NS NS NS NS NS <br /> 04/30/92 2953 -2140 000 NS NS NS NS NS <br /> 08/13/92 Dry NS NS NS NS NS <br /> 10/08/92 Dry NS NS NS NS NS <br /> 02/23/93 29 12 -2099 000 NS NS NS NS NS <br /> 05/18/93 -- -- -- NS NS NS NS NS <br /> 08/22/93 2804 -1991 000 NS NS NS NS NS <br /> 12/30/93 27 85 -1972 000 NS NS NS NS NS <br /> 02/17/94 27.49 -19.36 0.10 NS NS NS NS NS <br /> MW5 07/16/87 958 1669 -711 000 <10 480 280 1,390 2,200 <br /> 04/11/88 2286 -1328 000 <2 0 25 25 85 500 <br /> 09/13/88 25 33 -1575 000 44 650 50 110 1,400 <br /> 11/16/88 25 31 -1573 000 <1 3 19 25 24 910 <br /> 02/09/89 2509 -1551 000 3 4 12 15 22 1,250 <br /> 05/31/89 2672 -17 14 000 <0 5 14 24 46 790 <br /> 08/17/89 28 44 -1886 000 10 29 13 12 I,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 /> 02/17/94 29.54 -19.96 0.00 NS NS NS NS NS <br /> XC1.73942Q294 1 Page 3 <br />