Clarifier Basin at Cottage Grove’s Wastewater Treatment Plant

Sedimentation basins at the Cottage Grove Wastewater Treatment Plant in Cottage Grove, Minnesota, are equipped with rotating collector mechanisms that remove settled solids during primary treatment. Elevated metal walkways and railings provide access to pumps, valves, and mechanical equipment used to operate and maintain the tanks. The facility is part of the municipal wastewater system that treats sewage before discharge, with additional treatment structures and service areas visible beyond the basins.

Taken September 2019