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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 /> RW4 02/17/94 923 3080 -2157 000 -- -- -- -- --
<br /> 05/10/94 3023 -2100 000 2,400 15,000 2,300 9,700 70,000 --
<br /> 08/02194 3179 -2256 000 4,100 26,000 4,000 18,000 100,000 --
<br /> 11/01/94 3227 -2304 000 2,700 17,000 2,300 11,000 69,000 --
<br /> 02/17/95 2970 -2047 000 1,000 9,100 1,900 7,600 45,000 --
<br /> 05/11/95 2696 -1773 000 1,400 11,000 1,600 7,400 59,000 --
<br /> 08/24/95 2800 -1877 000 590 4,500 970 3,700 17,000 --
<br /> 10/19/95 2839 -1916 000 510 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 -1568 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 -1217 000 1,700 6,500 1,900 7,200 42,000 1,300
<br /> 05/08/97 786 2005 -1219 000 540 1,500 720 2,200 16,000 56
<br /> 08/26/97 21.51 -1365 000 98 180 140 340 2,600 56
<br /> SWI 02/17/94 Not accessible since 02/17/94
<br /> 02/17/95 2801 Air spargmg well--samples not collected
<br /> 05/11/95 -- Air spargmg well--samples not collected
<br /> 08/24/95 -- Air spargmg well--samples not collected
<br /> 10/19/95 Air spargmg well--samples not collected
<br /> 02/13/96 -- Air spargmg well--samples not collected
<br /> 04/18/96 -- Air spargmg well--samples not collected
<br /> 08/08/96 Airs argmg samples well-- les not collected
<br /> P P
<br /> 11/04/96 2424 -- 000 2,400 3,100 290 2,800 25,000 <250
<br /> 02/03/97 -- -- -_
<br /> 05/08/97 -- -- -- -- -- -- --
<br /> XLS73942Q697 Tl 1
<br /> Page 21
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