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1 ' 23 December 2003 f,v , AGE-NC Project No 97-0333 I' ' Page 5"of 11 Primary Aquifer Zone hydrogeologic flow units as defined in AGE's Cone Penetrometer Testing Site Investigation -Fourth Quarter'2000, dated 07 February 2001 (Figures 4 through 7) tr I , , On 19 and 20 August`2003, approximately 3 to 4%2 gallons of ground water (a immmum of three casing-I watervolumes perwell)were evacuated(purged)from wells MW-1 through MW-5 utilizing disposable polyethylene bailers Temperature,pH and conductivity were measured for stabilization ` at regularpurge-volume intervals from each well using an Oakton water analyzer Field data and logs are provided in Appendix D The purged ground water was transferred to the ground water remediation system holding tank for treatment and disposal r „ The single,-completed well MW-6 and the multi-level monitoring wells MW-7 through MW-13 were purged utilizing a Watera Hydro-Lift 11 pump equipped with a mechanical arm by lowering and ' 1 raising a 3/e-inch outer diameter,length-discrete polyethylene hose equipped with a ball-valve water tip through the top chambers into the specific water-charged screened section Approximately%2 to 10 gallons of ground water(a minimum of three casing-water volumes per well)were purged from I ' the multi-level monitoring wells'Temperature,pH and conductivity were measured for stabilization ` at regular purge-volume intervals from each well using an Oakton water analyzer Field data and logs are provided in Appendix D Multi-level well purged ground water was transferred to the ground i water remediation system holding tank for treatment and disposal 7 'I 't V „ 32 {FLOATING PETROLEUM PRODUCT On 19 August 2003,approximately V2-inch of a dark orange-brown, floating petroleum product was I, encountered in well MW-2 (Ap} endlx D), thereafter, a clear, disposable polyethylene bailer,was utiIized at the well to remove the ,floating petroleum product, bailing activities continued (approximately 4 gallons)until product could not be observed , The floating petroleum product captured from bailing activities was'placed Inside a Department'of f Transportation(D O T )-approved steel drum and stored at the southeast section at the site in an area , lacking'pubIic access 3 3 GROUND WATER SAMPLING Ground water samples were collected from the purged wells MW-1 through MW-5 utilizing new, k 2-inch diameter disposable polyethylene bailers, ground water 'samples were collected from the purged)wells MW;6 through MW-1'3 utilizing%-inch diameter polyethylene tubing Ground water samples,were transferred into one-liter amber bottles without a preservative and into 40-ml EPA- approved PAapproved volatile organic analysis(VOA)vials containing 0 5 ml 18%hydrochlonc acid as a sample, I I d tal,Inc .advanceGeoEnv�ronmen