Laserfiche WebLink
1 <br /> ' 05 January 2004 t <br /> • AGE-NC Project No 97-0333 <br /> ' Page 5 of 11 <br /> ' casing-water volumes per well)were evacuated(purged)from wells MW-1 through MW-5 utilizing <br /> disposable polyethylene bailers,well MW-6 was not monitored due to encountering approximately <br /> 0 05 foot of floating petroleum product Temperature, pH and conductivity were measured for <br /> ' stabilization at regular purge-volume Intervals from each well using an Oakton water analyzer Field <br /> data and logs are provided in Appendix E The purged ground water from wells MW-1 through <br /> MW-5 was transferred to the ground water remediation system holding tank for treatment and <br /> disposal <br /> The multi-level monitoring wells MW-7 through MW-13 were purged utilizing a WateraHydro-Lift <br /> ' U pump equipped with a mechanical arm by lowering and raising a 3/8-inch outer diameter, length- <br /> discrete polyethylene hose equipped with a ball-valve water tip through the top chambers Into the <br /> specific water-charged screened section Approximately 1/3 to 43/4 gallons of ground water (a <br /> ' minimum of three casing-water volumes per well) was purged from multi-level monitoring wells <br /> MW-7 through MW-13 Temperature,pH and conductivity were measured for stabilization at regular <br /> purge-volume intervals from each well using an Oakton water analyzer Field data and logs are <br /> ' provided in Appendix E Multi-level well purged ground water was transferred to the ground water <br /> remediation system holding tank for treatment and disposal <br /> f <br /> 10 <br /> 3 2 FLOATING PETROLEUM PRODUCT <br /> On 05 October 2004,approximately 1/2-inch of a dark orange-brown,floating petroleum product was <br /> encountered in well MW-6 (Appendix F), thereafter, a clear, disposable polyethylene bailer was <br /> ' utilized at the well to remove the floating petroleum product and bailing activities continued <br /> (approximately 2-gallons)until product could not be observed <br /> The floating petroleum product captured from balling activities was placed inside a Department of <br /> ' Transportation(D O T )-approved steel drum and stored at the southeast section ofthe site,in an area <br /> lacking public access <br /> 1 <br /> 3 3 GROUND WATER SAMPLING <br /> ' Ground water samples were collected from purged wells MW-1 through MW-5 utilizing new,2-inch <br /> diameter disposable polyethylene bailers, ground water samples were collected from purged wells <br /> ' MW-7 through MW-13 utilizing 3/a-inch diameter polyethylene tubing and the above referenced <br /> Watera Hydro-Lift H system Ground water samples were transferred into 40-m1 EPA-approved <br /> volatile organic analysis (VOA) vials containing 0 5 ml 18% hydrochloric acid as a sample <br /> tpreservative Care was taken to ensure that visible air bubbles were not present in the vials after <br /> • filling and capping Ground water sample containers were labeled with the well designation, date, <br /> Advanced GeoEnvironmental,Inc <br />