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v Groundwater Contour Map and Flow Gradient A groundwater contour map to a known datum was prepared for the data listed in Table 1 above (see Figure 1) The groundwater flow direction was to the northerly under a calculated gradient of 0 0028 The flow direction is consistent with historic observed trends, and remains relatively flat Overall groundwater levels appear to have declined slightly from the previous quarter A small groundwater depression was Present at Well MW-9 Historically, small groundwater mounds have been observed around MW-9, so a depression appears somewhat anomalous Chemical Analytical Methods and Results Nine groundwater samples were analyzed using EPA Methods 503018015, 602 and 8260 for Total Petroleum Hydrocarbons as Gasoline (TPHG), Benzene, Toluene, Ethylbenzene and Xylene (BTEX) and fuel oxygenates including Methyl-tert-butyl-ether (MTBE), Tert-Butyl Alcohol (TBA), DI-Isopropyl Ether (DIPE), Ethyl tert-butyl ether (ETBE), Tert-Amyl Methyl Ether TAME), 1,2-Dlchloroethane (1,2-DCA) and Ethylene Dibromide (EDB) The analytical results of the groundwater samples for this sampling event are attached and listed below in Table 1(historic data is presented in attached spreadsheet Table 2), Table 1. Current Quarter Groundwater Chemical Data (October 17, 2000) Sample TPHG Ben Tol Ethyl Xyl MTBE TBA DIPS ETBE TAME ug/1 ug/1 ug/l ugll ugll ugll ug/1 ug/l ugll ugll MW-1 140 082 12 56 26 ND ND NO ND ND MW-2 930 45 ND 32 42 NO NO ND NO ND MW-3 24000 460 320 920 4000 NO NO ND NO ND MW-4 NO ND ND ND ND NO NO NO ND NO MW-5 NO ND ND NO ND NO NO ND NO NO MW-6 350 NID NO ND ND ND NO NO ND NO MW-7 NO ND NO ND NO NO NO ND ND NO MW-8 NO ND NO ND NO ND NO ND NO ND MW-9 66000 3100 850 4800 19000 ND NO ND NO ND Blank NO ND NO NO NO ND ND NO NO hip NO-None detected ug1l-micrograms per liter Ben-Benzene Tol-Toluene Xyl-Xylene Fuel Ox -Fuel Oxygenates by Method 8260 from Dec, 1997 forward Ethyl-Ethylbenzene 1,2 Dichloreethane and Ethylene Dibromide ND in all wells Discussion Groundwater flow direction is northerly at a low flow gradient which is consistent with historically observed trends A small groundwater depression at MW-9 is anomalous based upon historic data, it may be the result of a measurement error since there is no groundwater withdrawal occurring at MW-9 It is possible that a water level measurement error may have occurred • Page 2