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materials (soil) would be temporarily stored near Cell 0. (The temporary side slopes of the cells, both natural-material and filled-material slopes, would not exceed 5 to 1.) The excess sandy materials would be hauled to the topsoil storage areas in the southwest part of the proposed Site (fig. 4). Cell I would then be excavated, the sandy soils would be cast on top of the sandy-material surface of Cell 0, any of the Prestressed concrete wastes that had not been placed in Cell 0 and the waste concrete from Bladholm's pipe manufacturing operations would be placed in Cell i and compacted. Then the sandy soils excavated from Cell i that had been stored on the upper surface of Cell 0 would be placed on top of the compacted concrete wastes -- the excess sandy materials would be hauled to topsoil storage. The organic- bearing materials, stored near Cell 0, would then be placed on top of the sandy cover materials, to thicknesses of greater than 0.5 ft, to fo.~m the final grade of Cell 0. The above-described sequence of landfilling operations would continue southward until the estimated closure date of 2011. Present plans (4) are to carry out landfilling operations during a short period of time each year -- probably during the fall season. Thus each cell -- or parts of each designated cell (depending upon the volume of waste generated that year) -- would be excavated, the waste-concrete materials placed, compacted and a sandy-materials cover placed on the wastes and final soil cover placed on the adjacent cell (or part thereof) to the north, all within a few weeks time. Dust suppressants will be used on access road surfaces and interim soils piles; the long-term topsoil storage piles will vegetate naturally with native plants. On completion in 2011, the proposed landfilling facility would contain an estimated 45,000 ydm of compacted concrete waste with an average thickness of about 4 ft (thickness would range from 1.0 to 7.0 ft), and would underlie about 9.0 acres of land surface. An estimated 25,400 yd~ of excess sandy materials from the cell excavations would have been used for R.K. HoagDerg Associates, Inc. Consulting Geologists 8803 16