Norridgewock WWTF - Secondary Wastewater Treatment Plant in Norridgewock, Maine

Norridgewock WWTF is a municipal wastewater treatment facility located at 39 Willow Street in Norridgewock, Somerset County, Maine. The plant serves a population of approximately 1,200 residents, providing secondary treatment to meet state and federal water quality standards. The plant operates under the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater. With a design capacity of 719.23 cubic meters per day and an average discharge volume of 302.83 cubic meters per day, the facility is sized to accommodate the community's needs. Treatment processes typical for secondary plants include biological treatment followed by clarification and disinfection. The treated effluent is discharged to a receiving water body within the Kennebec River watershed, which flows into the Atlantic Ocean. The plant plays a key role in protecting downstream water quality and aquatic habitats in the region.

The plant discharges into the Kennebec River basin, which drains into the Atlantic Ocean via the Kennebec River estuary. This watershed supports diverse aquatic life, including migratory fish species such as Atlantic salmon and alewives. The secondary treatment process helps reduce nutrient and pollutant loads, protecting the ecological health of the river and coastal waters.