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TABLE 1 (continued)
<br /> Casing Depth Groundwater LPH Concentration(1ig/L)
<br /> Well Elevation to Water Elevation Thickness Ethyl-
<br /> No Date (ft msl) (ft) (ft ms1) (ft) Benzene Toluene benzene Xylenes TPH-g MTBE
<br /> RW4 01/30/91 923 3480 -25 57 000 30,000 41,000 4,500 27,000 170,000 --
<br /> 05/02/91 3479 -25 56 000 16,000 34,000 4,200 22,000 110,000 --
<br /> 07/16-17/91 3569 -2646 000 12,000 31,000 2,700 14,000 110,000 --
<br /> 10/15/91 3622 -2699 000 13,000 28,000 3,100 15,000 120,000 --
<br /> 01/28/92 3439 -25 16 000 13,000 30,000 3,600 18,000 110,000 --
<br /> 04/30/92 34 04 -2481 000 11,000 25,000 2,800 13,000 98,000 --
<br /> 08/13/92 36 18 -2695 000 8,500 24,000 2,500 13,000 120,000 --
<br /> 10/08/92 3678 -27 55 000 6,000 17,000 1,700 10,000 95,000 --
<br /> 02/23/93 3332 -24 09 000 7,000 16,000 3,000 14,000 88,000 --
<br /> 05/18/93 3184 -2261 000 5,700 18,000 2,600 4,100 57,000 --
<br /> 08/22/93 3220 -2297 000 -- -- -- -- --
<br /> 12/30/93 3133 -22 10 000 5,200 23,000 3,500 16,000 88,000 --
<br /> 02/17/94 3080 -2157 000 -- -- -- -- --
<br /> 05/10/94 3023 -2100 000 2,400 15,000 2,300 9,700 70,000 --
<br /> 08/02/94 3179 -2256 000 4,100 26,000 4,000 18,000 100,000 --
<br /> 11/01/94 3227 -23 04 0 00 2,700 17,000 2,300 11,000 69,000 --
<br /> 02/17/95 2970 -2047 0 00 1,000 9,100 1,900 7,600 45,000 --
<br /> 05/11/95 2696 -1773 0 00 1,400 11,000 1,600 7,400 59,000 --
<br /> 08/24/95 28 00 -1877 0 00 590 4,500 970 3,700 17,000 --
<br /> 10/19/95 2839 -19 16 0 00 510 3,100 950 2,700 17,000 310
<br /> 02/13/96 2623 -1700 000 2,200 13,000 2,200 9,700 78,000 --
<br /> 04/18/96 2376 -1453 000 1,900 9,200 2,100 8,400 62,000 <500
<br /> 08/08/96 2491 -15 68 000 730 2,500 970 2,900 15,000 <125
<br /> 11/04/96 2528 -1605 000 1,600 5,200 1,300 4,900 36,000 <250
<br /> 02/03/97 2140 -12 17 000 1,700 6,500 1,900 7,200 42,000 1,300
<br /> 05/08/97 7 86 2005 -12 19 000 540 1,500 720 2,200 16,000 56
<br /> 08/26/97 21 51 -13 65 000 98 180 140 340 2,600 56
<br /> 11/11/97 2212 -1426 000 260 350 320 570 4,100 98
<br /> 03/03/98 1685 -899 000 1,500 4,600 2,100 6,000 38,000 1,100
<br /> 03103198 <67*
<br /> 05/20/98 1611 -8 25 000 450 460 600 890 7,400 400
<br /> 73942 Q200 T]XIS Page 25
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