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K <br /> Table 1. Groundwater Well Water Levels, December 23, 2004 <br /> Date Depth to Well Casing Groundwater Comments <br /> Measured Water(ft) Depth(ft) Elevation(msl Elev.(ft) <br /> ft <br /> MW-1 12/23/04 8.62 20.97 45.09 36.47 None <br /> MW-2 12/23/04 8.15 25.05 45.41 37.26 None <br /> MW-3 12/23/04 8.50 24.81 46.01 37.51 None <br /> 2.0 Groundwater Conditions <br /> Groundwater occurred in wells at a depth of about 8.1 to 8.5 feet below the surface (see <br /> Table 1). A groundwater contour map was prepared; the historic groundwater flow <br /> direction is north northwesterly (see Figure 1). Water levels in the monitoring wells <br /> declined slightly since the previous measurements and the calculated flow gradient this <br /> quarter is 0.007. <br /> 3.0 Chemical Analysis <br /> One groundwater sample was analyzed at STUChromalab, Inc., a State certified analytical <br /> laboratory from the monitoring and domestic wells. The sample was tested for the <br /> following; Total Petroleum Hydrocarbons as Gasoline (TPHG) and Diesel (TPHD), <br /> Benzene (B), Toluene (T), Ethylbenzene (E) and Xylene (X), Methyl-tert-butyl-ether <br /> �. (MTBE) and fuel oxygenates, 1,2 Dichloroethane and Ethylene Dibromide using EPA <br /> Methods 3510/8015, 8020, 8240 and 8260. The analysis was run on a "normal" <br /> turnaround(five-to ten working days). The results are presented in Figure 2 and Table 2 <br /> and historic data in Tables 3 and 4 below. <br /> Table 2. Groundwater Monitoring Well Chemical Data, December 23, 2004 <br /> Sample TPHD TPHG Ben Tol Ethyl Xyl TBA MTBE DIPE ETBE TAME 12 IDB <br /> DCA <br /> ug/l ug/1 ug/l ug/l ug/l ug/l ug/l ug/l ug/1 Ug4 ug/1 ug/l ug/l <br /> MW-1 ND ND ND ND ND ND ND ND ND ND ND ND ND <br /> MW-2 ND ND ND ND ND ND ND ND ND ND ND I ND ND <br /> MW-3 130# ND ND ND ND ND ND ND ND ND ND ND ND <br /> Equipment ND ND ND ND ND ND ND ND ND ND ND ND ND <br /> Blank <br /> Lab Blank ND ND ND ND ND ND ND ND ND ND ND ND ND <br /> ND—None detected. NS—Not sampled. #-Laboratory reports that this does not match the diesel standard. See laboratory <br /> reports. <br /> Page 2 of 6 <br />