Chateaugay V WWTP - Secondary Treatment Plant in Town of Chateaugay, New York

Chateaugay V WWTP is a municipal wastewater treatment facility located in the Town of Chateaugay, Franklin County, New York. Serving a population of approximately 748 residents, this plant provides secondary treatment to remove organic matter and suspended solids from domestic wastewater. The facility is situated inland, away from coastal areas, and its treated effluent is discharged into local waterways. The plant operates under the regulatory framework of the U.S. Clean Water Act, which requires secondary treatment as a minimum standard for municipal wastewater. With a designed capacity of 208.20 units and a discharge volume matching that figure, the plant appears to be operating at full capacity. As a small agglomeration, it is subject to state-level National Pollutant Discharge Elimination System (NPDES) permits issued by the New York State Department of Environmental Conservation. The treated wastewater from Chateaugay V WWTP ultimately drains into the St. Lawrence River watershed, which flows northeast into the Gulf of St. Lawrence and the Atlantic Ocean. The plant plays a key role in protecting local water quality in the Chateaugay River and downstream ecosystems, including the St. Lawrence River, which supports diverse aquatic life and is an important migratory corridor for fish.

The plant discharges into the Chateaugay River, a tributary of the St. Lawrence River. The St. Lawrence River flows into the Gulf of St. Lawrence, a major estuary on the Atlantic coast. The watershed supports diverse aquatic species, including lake sturgeon and American eel, and is an important migratory route for fish. Secondary treatment helps reduce nutrient loading and protect downstream water quality in this ecologically sensitive region.