Landfill variance for incinerator ash requested by Otter Tail County
Area News | Published on November 16, 2022 at 4:15pm CST | Author: Tom Hintgen0
By Tom Hintgen
Otter Tail County Correspondent
A motion by County Commissioner Lee Rogness of Fergus Falls and seconded by Commissioner Dan Bucholz of rural Perham was unanimously carried to authorize submitting a variance request for a revised final cover design for the Ash Monofil at the Northeast Otter Tail County Solid Waste Facility.
Monofil refers to a disposal facility at which only special incinerator ash is deposited.
The process includes adding a synthetic membrane to the demolition landfill cover section to reduce percolation through the cover, protecting local groundwater quality, and removing the 18-inch clay barrier layer and 12-inch drainage layer from the ash monofil.
The goal is to maximize the effectiveness of the final covers without spending money on unnecessary improvements.