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<br /> 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-g MTBE
<br /> RW 1 09/25/90 9 05 3237 -2332 000 7,100 16,000 2,000 9,200 72,000 --
<br /> 12/19/90 3229 -23 24 000 9,000 20,000 2,300 11,000 73,000 --
<br /> 01/30/91 3267 -23 62 000 4,400 13,000 1,700 8,400 57,000 --
<br /> 05/02/91 3263 -23 58 0 00 5,700 17,000 2,700 12,000 67,000
<br /> 07116-17/91 3359 -24 54 000 5,100 17,000 1,700 8,100 61,000
<br /> 10/15/91 3402 -2497 000 7,000 21,000 2,600 12,000 93,000 --
<br /> 01/28/92 3236 -2331 000 5,500 18,000 2,500 10,000 66,000 --
<br /> 04/30/92
<br /> 08/13/92 33 93 -2488 000 4,700 19,000 2,500 12,000 92,000 --
<br /> 10/08/92 3448 -2543 000 2,200 8,400 1,500 6,600 52,000 .-
<br /> 02/23/93 3169 -2264 000 1,800 4,100 1,000 3,900 26,000 --
<br /> 05/18/93 2974 -2069 000 1,900 7,800 1,300 5,000 36,000 --
<br /> 08/22/93 3003 -2098 000 1,800 7,600 1,500 5,800 39,000 --
<br /> 12/30/93 2938 -2033 000 1,600 2,400 1,300 3,700 20,000 --
<br /> 02/17/94 2897 -1992 000 1,000 4,000 1,100 3,600 26,000 --
<br /> 05/10/94 2853 -1948 000 1,200 5,300 1,400 5,000 34,000 --
<br /> 08/02/94 2995 -2090 000 1,300 4,700 1,400 4,800 28,000 --
<br /> 11/01/94 3034 -2129 000 1,100 4,600 1,300 4,600 28,000 --
<br /> 02/17/95 2782 -1877 000 820 3,600 1,200 3,900 24,000 --
<br /> 05/11/95 25 13 -1608 000 780 4,000 1,300 4,300 32,000 --
<br /> 08/24/95 2641 -1736 000 820 4,000 1,500 4,600 24,000 --
<br /> 10/19/95 2685 -1780 000 680 3,100 1,200 3,600 25,000 <250
<br /> 02/13/96 2270 -1365 0 00 590 2,900 920 2,700 21,000 --
<br /> 04/18/96 2229 -1324 000 510 2,500 980 2,700 23,000 <100
<br /> 08/08/96 2344 -1439 000 600 3,200 1,200 3,500 20,000 <250
<br /> 11/04/96 23 81 -1476 000 710 2,600 1,200 3,200 23,000 900
<br /> 02/03/97 1963 -10 58 000 390 1,900 680 2,000 16,000 440
<br /> 05/08/97 770 1976 -1206 000 430 2,000 860 2,300 18,000 620
<br /> 08/26/97 2051 -12 81 000 600 2,600 1,200 3,400 21,000 380
<br /> 11/11/97 21 11 -1341 000 410 1,500 750 1,800 13,000 520
<br /> 11(11197
<br /> <25*
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