Patent ID: 8430600

Claim:
A combination of an existing landfill and a berm to increase capacity of the existing landfill, the landfill comprising a waste-receiving recess having an outer perimeter, an edge surface peripherally adjacent at least a portion of the outer perimeter, and an existing accumulation of waste within the recess, the berm comprising: fill material having a base, an inner sloped surface adjacent a future accumulation of waste, and an outer sloped surface opposite the inner sloped surface, the fill material comprising contaminated fill material fully encapsulated by an impermeable membrane; a covering portion comprising structural fill material, the covering portion at least partially covering the fill material; and a drainage system within the impermeable membrane, the drainage system comprising a perforated pipe surrounded by a granular fill material; wherein at least a portion of the berm sits on at least a portion of the edge surface of the landfill, and wherein portions of the berm are substantially parallel to corresponding portions of the outer perimeter; wherein the contaminated fill material comprises one or more of fossil fuel combustion product, fly ash, bottom ash, boiler slag, flue gas desulphurization material, non-hazardous contaminated soil, contaminated crushed glass, contaminated crushed concrete, contaminated crushed asphalt, sand blast grit, foundry sand, properly de-watered dredge spoils, or combinations thereof; and wherein the contaminated fill material is contaminated with one or more of metal, acid, base, volatile organic compound, semi-volatile organic compound, petroleum product, or combinations thereof.