A total of 1.48 million cubic yards of contaminated materials now resides within the cell’s multi-layer bottom liner, clean-fill dike and multi-layer cap. The cell averages 65 feet in height and covers approximately 45 acres.
The cell consists of the following:
Base Liner — The base liner with leachate collection and removal systems designed to prevent leachate migration from the bottom of the cell.
Disposed Waste — The contaminated wastes, consisting of treated and untreated wastes, were placed and stabilized within the cell in a controlled and engineered manner to reduce settling, minimize volume, and retard radon emissions.
Clean-Fill Dike — The clean-fill dike, constructed of compacted clay soil material, surrounds the disposal cell in order to resist erosion, limit infiltration of moisture into the waste, minimize radon emissions, and reduce long-term maintenance.
Cover — The cover systems armor the top of the cell protecting it from erosion, infiltration, bio intrusion, etc. It consists of multiple layers including (from bottom to top) an infiltration/radon barrier of clay, a geosynthetic liner, a gravel drain, sand filter, and a mixture of cobbles.
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