Canaan WWTF - Secondary Wastewater Treatment Plant in Canaan, New Hampshire

Canaan WWTF is a municipal wastewater treatment facility located on Transfer Station Road in Canaan, Grafton County, New Hampshire. It serves a small population of 437 residents, reflecting the rural character of the area. The plant is part of the town's infrastructure for managing domestic wastewater. The facility provides secondary treatment, which is the standard level required by the U.S. Clean Water Act for municipal plants. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. The plant has a designed capacity of 283.91 million gallons per day, with an average discharge volume of 174.13 million gallons per day, indicating operational capacity below design. The treated effluent is discharged into nearby streams that drain into the Connecticut River watershed, ultimately reaching the Long Island Sound. The plant plays a key role in protecting local water quality and the downstream aquatic ecosystem, which supports diverse fish and wildlife populations.

Canaan WWTF discharges into local tributaries of the Connecticut River, which flows southward through New England and empties into Long Island Sound. The Connecticut River watershed is ecologically significant, supporting migratory fish species and providing habitat for diverse aquatic life. The plant's secondary treatment helps reduce nutrient and pollutant loads, safeguarding water quality in this sensitive river system.