Deerfield Dept of Public Works Wastewater Treatment Plant, Deerfield, Massachusetts

The Deerfield Department of Public Works operates a wastewater treatment plant serving the town of Deerfield, Massachusetts, a community in Franklin County. The facility supports a population of approximately 3,184 residents, classifying it as a small municipal system under US EPA guidelines. As a small agglomeration, the plant is subject to the US Clean Water Act's National Pollutant Discharge Elimination System (NPDES) permitting program, which sets effluent limits based on the receiving water body's designated uses. Plants of this scale typically employ secondary treatment or equivalent technologies to meet permit requirements. The treated effluent discharges into the local watershed, which ultimately drains to the Connecticut River, a major waterway in New England. The Connecticut River flows southward through Massachusetts and Connecticut before emptying into Long Island Sound, an estuary of the Atlantic Ocean. The plant's operations help protect downstream aquatic habitats and water quality in this ecologically significant river system.

The plant discharges into the Connecticut River basin, which flows through Massachusetts and Connecticut to Long Island Sound. This watershed supports diverse aquatic life, including migratory fish species such as American shad and Atlantic salmon. The river's health is critical for regional water supply and recreational uses, making effective wastewater treatment essential for maintaining water quality standards.