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.