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INTERNATIONAL TECHNOLOGY CORPORATION <br /> Ms. Mary Meays 2 October 27, 1997 <br /> Permits <br /> A well abandonment permit application will be procured from PHS/EHD prior to the initiation <br /> of field work. <br /> Scope of Work <br /> A total of seven Schedule 40 PVC wells will be abandoned at the site. The relevant <br /> specifications and proposed method of abandonment for each well is summarized below: <br /> Well No. Total Depth Well Diameter Method of Abandonment <br /> MW-1 65 feet 4-inch Pressure grout with a 3% <br /> bentonite in Type I/II <br /> Portland cement mixture <br /> MW-2 65 feet 4-inch Pressure grout with a 3% <br /> bentonite in Type I/II <br /> Portland cement mixture <br /> MW-3 65 feet 4-inch Pressure grout with a 3% <br /> bentonite in Type I/II <br /> Portland cement mixture <br /> MW-4 95 feet 2-inch Overdrill original 8-inch <br /> diameter borehole, and <br /> tremmie grout the borehole <br /> with a 3% bentonite in Type <br /> 1/II Portland cement mixture <br /> MW-5 90 feet 2-inch Pressure grout with a 3% <br /> bentonite in Type I/II <br /> Portland cement mixture <br /> MW-6 90 feet 2-inch -Pressure grout with a 3% <br /> bentonite in Type 1/II <br /> Portland cement mixture. <br /> VP-1 20 feet 4-inch Backfill with Bentonite <br /> Chips/pellets and hydrate in <br /> q kV 5 r comm l.Cw 3 feet increments <br /> %2 ' N\(VtfmOw\ I CeW&&4- C-0'"A 3/6rrj L_1P. 5' �Dmrl>1 <br /> IT Corporation is a wholly owned subsidiary of International Technology Corporation <br /> " iE <br />