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05 August 2015 AGE Project No. 06-1463 Page 2 of 5 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, 1985). Prior to drilling activities, each proposed drilling location will be clearly marked and a utility clearance will be obtained through Underground Service Alert. A well destruction boring permit will be procured from the SJCEHD prior to drilling activities. Prior to destruction activities, all wells will be checked for total depth and integrity using a Solinst water level meter. Any obstructions found in the well will be removed. All wells proposed for destruction (MW-1 through MW-11; VW-1 through VW-4; and EW-1 and EW-2) will be drilled-out to one foot deeper than their installed total depths. All wells, with the exception of continuous multi-channel tubing (CMT) wells MW-BA-D and MW-9A-D will be drilled out utilizing a CME-75 hollow stem auger drilling rig equipped with either 8.25-inch or 12.25-inch diameter hollow-stem augers. Both CMT wells will be drilled out using Sonic drilling technologies. The following is a summary of each well and the proposed drilling depths: • MW-1: 56 feet with 8.25-inch hollow stem augers; • MW-2 through MW-7 and MW-11: 49 feet bsg with 8.25-inch hollow stem augers; • MW-BA-D and MW-9A-D: 151 feet bsg with sonic drilling technology; • VW-1 through VW-4: 36 feet bsg with 8.25-inch hollow stem augers; and • EW-1 and EW-2: 66 feet bsg with 12.25-inch 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. Remaining boreholes will be backfilled to surface grade with neat cement and covered with concrete or native soils, 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 soil bin and stored on-site for proper disposal. Upon completion of field work and disposal of soil-cuttings, a well destruction report describing well destruction activities and procedures, including documentation of waste Advanced GeoEnvironmental,Inc.