Heuvelton V STP - Village of Heuvelton, New York Wastewater Treatment Plant

Heuvelton V STP is a municipal wastewater treatment facility located in the Village of Heuvelton, St. Lawrence County, New York. Serving a population of around 800, the plant is part of the region's infrastructure for managing domestic wastewater in a rural setting. As a small-scale facility in the United States, the plant operates under the Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for all discharges. Plants of this size typically employ secondary treatment to meet federal and state standards for effluent quality. The treated effluent is discharged into a receiving water body that ultimately flows into the St. Lawrence River, a major waterway draining into the Atlantic Ocean. The plant's operations help protect local water quality and downstream ecosystems, including fish habitats and recreational waters.

The plant's discharge enters a tributary of the St. Lawrence River, which flows northeast into the Gulf of St. Lawrence and the Atlantic Ocean. This watershed supports diverse aquatic life, including fish species such as walleye and bass, and provides important habitat for migratory birds. The St. Lawrence River is a critical waterway for both ecological and economic activities in the region.