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r 19 April 2011 AGE-NC Project No. 97-0327 Page 2of3 2006 monitoring event. Low concentrations of dissolved petroleum hydrocarbon constituents were detected during the ficial ground water sampling event from well MW-2. Analytical results of ground water samples are summarized in Table 3. AGE p�rop�ses to drill out wells MW-2 and MW-3, and destroy the remaining wells (MW-1 and lVW'4) by pressure grouting techniques. All well will be destroyed in accordance with the EHD Standards For Well Construction and Destruction. PROCEDURES As required, a health and safety plan will be prepared in accordance with Occupational Safety and Health Guidance Manual for Hazardous Waste Site Activities(National Institute for Occupational Safety and Health Administration, - U.S. Coast Guard and U.S. Environmental Protection Agency, 1.985). Prior to drilling activities, each proposed drilling location will be clearly [narked and an utility clearance obtained through Underground Service Alert. Prior to destruction activities, wells will be checked for total depth and integrity using a Solinst water level meter. Any obstructions found in the well will be removed. Wells MW-2 and MW-3 will be drilled-out to the total depth of the well plus one foot below surface grade (bsg), utilizing 8-inch diameter hollow-stem augers. All original well construction materials will be removed (including well casing, screen, filter pack, and annular seal) to ensure that no residual contamination is sealed within the abandoned borehole. The remaining borehole will be backfilled to surface grade with neat cement andP�G�s covered with concrete or asphalt, depending on the surrounding surface.material. �'ov Well boxes and caps will be re oved to expose the well casings of wells MW-1 a�=4. The well heads will be fitted ith a pressure tight adapter connected to a hose extending from a grout mixer. A thi grout mixture will be pumped into the well casing under approximately 10-15 pounds per square inch (psi) of pressure. The well will then be over-drilled to approximately 3 feet below surface grade (bsg)using 8-inch diameter hollow, stem augers. The top 2.5 feet of the well casing will then be cut and removed and grout will be used to fill the boring to approximately 0.5 feet above the top of the well casing. The remaining borehole will be backfilled to surface grade with neat cement and covered with concrete or asphalt, depending on the surrounding surface material. Soil cuttings generated during drilling activities and rinseate will be containerized in properly labeled Department of Transportation (D.O.T.)-approved 55-gallon drums or a Advanced CeoEnvironmental,Inc. ti - i _