Ash Monofill Landfills
Bottom Ash means the ash residue remaining after combustion of solid waste or solid waste in combination with fossil fuel in a solid waste incinerator that is discharged through and from the grates, combustor or stoker.
Fly ash means the ash residue from the combustion of solid waste or solid waste in combination with fossil fuel that is entrained in the gas stream of the solid waste incinerator and removed by the air pollution control equipment.
Combined ash means the mixture of bottom ash and fly ash.
Ash Monofill Landfills in New York State
As of November 2013, there are two ash monofill landfills operating in New York State, both of which are located on Long Island. Except in Nassau and Suffolk counties, the minimum liner required for an ash monofill landfill is a single composite liner with a leachate collection and removal system.