Wilton W P C F Wastewater Treatment Plant, Wilton, Maine

Wilton W P C F is a municipal wastewater treatment facility located in Wilton, Franklin County, Maine, serving a population of about 4,676. The plant provides secondary treatment, a standard level for communities of this size in the United States, ensuring removal of organic matter and suspended solids before discharge. The plant has a designed capacity of 1,703.43 cubic meters per day and currently handles an average daily flow of 908.50 cubic meters, operating well within its capacity. As a US facility, it operates under the Clean Water Act's National Pollutant Discharge Elimination System (NPDES) permit program, which sets effluent limits to protect water quality. The treated effluent is discharged into local streams that drain into the Androscoggin River, a major waterway in Maine and New Hampshire. The Androscoggin River flows into Merrymeeting Bay and eventually the Gulf of Maine, supporting diverse aquatic life and recreational uses. The plant plays a key role in maintaining the health of this watershed.

The plant discharges into tributaries of the Androscoggin River, which flows through Maine and New Hampshire before emptying into Merrymeeting Bay and the Gulf of Maine. The Androscoggin River watershed supports a variety of fish species, including Atlantic salmon and brook trout, and is an important ecological corridor. The plant's secondary treatment helps reduce nutrient loading and protect downstream water quality.