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is <br /> s <br /> Chemical Analytical Methods and Results <br /> Eight groundwater samples were analyzed using EPA Methods 5030/8015, 602 and 8260 for Total Petroleum <br /> Hydrocarbons as Gasoline (TPHG), Benzene, Toluene, Ethylbenzene and Xylene (BTEX) and fuel oxygenates <br /> including Methyl-tert-butyl-ether(MTBE), Tert-Butyl Alcohol (TBA), Di-Isopropyl Ether(DIPE), Ethyl tent-butyl <br /> ether (ETRE), Tert-Amyl Methyl Ether TAME) The analytical results of the groundwater samples for this <br /> sampling event are attached and listed below in Table 1 (and Figures 2, 3 and 4) and historic data is presented in <br /> attached historic sampling data spreadsheet Table 2) <br /> Table 1. Current Quarter Groundwater Chemical Data(October 30,2003) <br /> Sample TPHG Ben Tol E i Xyl MTBE TBA DIPE ETBE TND <br /> u m u u u u u u u <br /> MW-1 ND ND ND ND ND ND ND ND ND <br /> MW-2 430 13 091 3 1 20 ND ND ND ND ND <br /> MW-3 43000• 180 210 1600 8900 SID ND ND ND ND <br /> • MW-4 ND ND ND ND ND ND ND ND ND ND <br /> MW-5 ND ND ND ND ND ND ND ND ND ND <br /> MW-6 1200 ND ND ND ND ND ND ND ND ND <br /> MW-7 ND ND 077 ND ND ND ND ND ND ND <br /> MW-8 ND ND ND 3 6 12 ND ND ND ND ND <br /> MW-9 690000# 550 ND 9800 34000 ND ND ND ND ND <br /> Equip ND ND ND ND ND ND ND ND ND ND <br /> Blank <br /> Lab I ND ND ND ND ND ND ND ND ND ND <br /> Blank <br /> ND-None detected ug/1-microgram v per liter Ben-Benzene To[-Toluene Xyl-Xylene NA—No analysis <br /> Fuel Ox.-Fuel Oxygenates by Method 8260 from Dec,1997 forward Ethyl-Ethylbenzene <br /> 12 Dichloroethane and Ethylene Dibromide ND is all wells,these analyses discontinued in 2000 <br /> "-0 26 feet of degraded product present on water in well at time of sampluig,sampler removed 150 milliliters. <br /> 4-0 51 feet of degraded product present on water in well at tm a of sampling;sampler removed 300 milliliters <br /> See htstonc data table for previous monitoring well sampling results <br /> Page 2 <br />