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Ms.Lori Duncan <br /> f October 27,2010 <br /> Page 3 of 4 <br /> Groundwater monitoring wells MW3, EW1, EW3 and VWI were destroyed by overdrilling <br /> between October 5 and 7, 2010, by V&W using a drill rig equipped with 8-inch and 10-inch <br /> diameter hollow stem augers. A guide/centering rod was installed at the tip of the drill bit to ensure <br /> the augers were centered upon each well during the over-drilling process. Upon completion, the <br /> borings were grouted with neat cement grout, through the augers, to just below the ground surface. <br /> Surface completion consisted of concrete dyed black to match the existing surface. Extraction well <br /> (EW3), located in the field was backfilled with neat cement to approximately 3 feet bgs and surface <br /> completion consisted of native soil. <br /> Waste Disposal <br /> All soil generated during the destruction activities was placed in DOT approved 55-gallon drums, <br /> which were stored on site pending disposal. Two composite soil samples were analyzed for <br /> constituents required for soil disposal. All soil samples were collected into brass sleeves via slide <br /> hammer sample device, uniquely labeled, temporarily stored in an ice chest refrigerated to a <br /> temperature of approximately 4°C, and delivered under chain of custody protocol to Argon <br /> Laboratories (FLAP #2359) for analysis. The results were sent to Republic/Forward Landfill for <br /> soil profile approval. On October 19, 2010, twenty eight (28) 55-gallon drums of well <br /> destruction derived waste, and three drums of grout generated during previous site activities, <br /> were transported by Jim Thorpe Oil, Inc. to Republic/Forward Landfill for disposal. A Copy of <br /> the waste manifest has been included in Attachment B. <br /> Site Restoration <br /> Carbon Removal <br /> On September 30, 2010, a Ground Zero technician collected two carbon samples for waste profiling <br /> purposes; one from an aqueous phase carbon vessel and one from a vapor phase carbon vessel. The <br /> samples were sent to McCampbell Analytical, Inc. (ELAP #1644) for analysis of volatile organic <br /> compounds (VOCs). A copy of the laboratory report has been included in Attachment C. <br /> On October 7, 2010, technicians from Baker Corp removed the used carbon from all of the carbon <br /> vessels located on site. The carbon was vacuumed out of each vessel, transferred into a hopper and <br /> loaded into large sacks for transport to the Baker Corp facility for recycling. Approximately 8,200 <br /> pounds (lbs) of carbon was removed from three 2,000 lbs aqueous phase carbon vessels, one 200 <br /> lbs aqueous phase carbon vessel and two 1,000 lbs vapor phase carbon vessels. <br /> Treatment System Equipment Removal <br /> Between October 8 and October 25, 2010, Del Tech Geotechnical Services with the help of Ground <br /> Zero personnel removed the empty carbon vessels, the groundwater treatment system equipment, <br /> the vapor extraction system equipment, the associated piping and the vapor extraction system <br /> compound fencing. No remediation equipment remains on site. <br /> G:%GROUNDZEITULEBERG1Reporis\Other\Well Dest Rpt.doc <br />