Williamstown WPCF - Secondary Wastewater Treatment Plant in Williamstown, Vermont

Williamstown WPCF (Water Pollution Control Facility) is a municipal wastewater treatment plant located in Williamstown, Vermont, United States. The facility serves a population of approximately 1,767 people, reflecting a small community in Orange County. It operates under the regulatory framework of the US Clean Water Act, which requires secondary treatment for municipal discharges. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 567.81 million gallons per year and an actual discharge volume of 310.40 million gallons per year, the facility operates below its capacity, indicating room for future growth or seasonal variations. The plant is permitted under the National Pollutant Discharge Elimination System (NPDES) program, administered by the Vermont Department of Environmental Conservation. The treated effluent is discharged into a local water body, likely a tributary of the Connecticut River basin, which ultimately drains into Long Island Sound. The plant's location inland and away from the coast reduces direct marine impact, but its discharge contributes to the health of the watershed, supporting aquatic life and downstream ecosystems.

The plant discharges into a receiving water body within the Connecticut River watershed, which flows southward through New England into Long Island Sound. The watershed supports diverse aquatic species, including migratory fish like Atlantic salmon and American eel. The plant's secondary treatment helps protect water quality in this ecologically sensitive region, reducing nutrient loading and maintaining habitat integrity.