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Mr. Earl E. Frsery 7 June 19, 1991 <br />Aemcor has successfully completed a number of projects in which . <br />the technical and regulatory issues were similar to those involved <br />in the Cherry Farm site. Six of these projects are described <br />below: <br />Case 1 - Remcor was contracted to perform a site investi- <br />gation cf a former electric arc furnace dust disposal area. <br />The area had been closed for several years, but the integ- <br />rity of the landfill had been breached by rechannelization <br />construction of an adjacent river. Remcor's site assess- <br />ment defined the limits of fill material, characterized the <br />wastes, and evaluated the potential for environmental re- <br />leases. Based on the site assessment, Remcor developed a <br />corrective action plan (CAP). <br />The initial step of the CAP consisted of grading the area <br />to provide a uniform slope and the construction of <br />trenches. Next, a cover was placed atop the expcsed waste <br />areas to prevent $irect contact with the materials, to <br />minimize the potential for dust, to resist erosion, and to <br />reduce water infiltration. Remcor selected an innovative <br />cover system of fabric-like shields with a network of <br />pockets. The shields were anchored in place by concrete- <br />filled trenches, and the pockets in the shield were filled <br />with grout. <br />The concrete-like barrier was covered with a 1-foot layer <br />of clay, a:.d the trenches were backfilled. The clay cap <br />was then seeded and mulched, and warning signs were posted. <br />• Case 2 - For a specialty steel manufacturer, Remcor pre- <br />paved a closure design for a 25-acre solid waste surfa~e <br />irpoundc^~ent with approximately 810,000 cubic yards (yd ) of <br />neutralized pickle liquor sludge. Development of this <br />final closure design package focused on constructibility of <br />the design in a cost-effective manner and acceptability of <br />the design by regulatory agencies. The scope of work for <br />developrent of the closure design package included geotech- <br />nical subsurface ezploration, preparation of conceptual de- <br />signs and permit applications, final design, and meetings <br />- with cognizant regulatory agencies. - <br />__•- Case 3 - Remcor conducted the feasibility study for a __.. <br />CERCLA site in Western Pennsylvania. This site included <br />two landfills, a former drum storaee area (Mz. Brausch was <br />the Project Manager for the removal of approximately 19,000 <br />drums containing listed solvent wastes) and low concentra- <br />tions of site-related constituents in the ground water. <br />Remcor successfully negotiated a Record of Decision (ROD) <br />•.~ r•r <br />-auusnc soumoks ,o~ w~z~uaous wash rsoscrns- <br />