Remsen V STP Wastewater Treatment Plant, Town of Trenton, New York

Remsen V STP is a municipal wastewater treatment plant located in the Town of Trenton, Oneida County, New York, serving the Village of Remsen and surrounding areas. With a population equivalent of 500, it is classified as a small-scale facility under U.S. EPA guidelines. The plant provides secondary treatment, a standard level required by the Clean Water Act for most municipal facilities. It has a designed capacity of 185.48 million gallons per day and an average discharge volume of 124.92 million gallons per day, indicating operational headroom. As a U.S. facility, it operates under an EPA National Pollutant Discharge Elimination System (NPDES) permit issued by the New York State Department of Environmental Conservation, which sets effluent limits to protect water quality. The treated effluent is discharged into a local water body that drains into the Mohawk River, a major tributary of the Hudson River. This watershed supports diverse aquatic life and provides drinking water for downstream communities. The plant's secondary treatment helps reduce nutrient and organic pollutant loads, contributing to the ecological health of the Mohawk-Hudson system.

The plant discharges into a local stream that flows into the Mohawk River, which ultimately joins the Hudson River and drains into the Atlantic Ocean via New York Harbor. The Mohawk River watershed supports a variety of fish species, including smallmouth bass and walleye, and is an important migratory corridor for American eel. Secondary treatment reduces biochemical oxygen demand and suspended solids, helping to maintain dissolved oxygen levels and prevent eutrophication in downstream waters.