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I - 16 January 2001 ' AGE-NC Protect No 98-0505 Page 4 of 9 ' methyl tertiary-butyl ether (MTBE), tertiary-amyl methyl ether (TAME), tertiary butanol (TBA),andmethanol,ethanol,ethylene dibromrde(EDB)and 1,2-dichloroethane(1,2-DCA) m accordance with EPA Method 8260-Modified, respectively ' Additionally, one composite sample was analyzed for total lead for soil disposal purposes 3 5 WELL DEVELOPMENT On 03 November 2000, monitoring wells MW-6, MW-7 and MW-8 were developed utilizing a stainless steel hand bailer and a submersible pump Initially, a stainless steel hand bailer was utilized to remove sediment settled at the bottom of each well casing Following hand bailing activities, ground water was purged from each monitoring well utilizing a submersible pump until ground water was visually sediment free, approximately 25 to 45 gallons of water were removed from monitoring wells MW-6, MW-7 and MW-8 during development Purged ground water was containerized in properly labeled DOT-approved model 17H 55-gallon drums and was stored on-site in an area lacking public access Monitoring well field logs Ifor development activities are included in Appendix B I3 6 MONITORING WELL PURGE PROCEDURES Ground water sampling of the on-site wells was conducted on 10 November 2000 For the sampling event, a Solmst water level meter was used to measure the depth to ground water in the eight monitoring wells relative to the tops of the well casings The ground water elevations and gradient were determined from these data (Table 1) After depth toound water measurements a minimum of 3 standing casco water volumes was �' � g purged from each well to be sampled using a PVC submersible two-stage pump Approximately fifteen to twenty-one gallons of water were removed from wells MW-1 through MW-6 Approximately six gallons were removed from MW-7 and MW-8 Temperature,pH and conductivity of purged ground water were measured at 2-to 5-gallon intervals using a Hydac water analyzer The field data and field sheets are included in Appendix B Purged water was temporarily stored on-site in 55-gallon DOT-approved H-17 storage drums pending proper disposal Following purging, the depth to ground water was measured to ensure that a minimum of 80% well-volume recharge had been achieved prior to sampling I3 7 GROUND WATER SAMPLE COLLECTION • A water sample was collected from each well using a new, clean, disposable plastic bailer Advanced GeoEnvironmentai,Inc I