Litchfield WPCF Wastewater Treatment Plant, Litchfield, Connecticut

Litchfield Water Pollution Control Facility (WPCF) is a municipal wastewater treatment plant serving the town of Litchfield, Connecticut, United States. Located in the Bantam area, the facility handles wastewater from a population of approximately 6,800 residents, making it a small-to-medium agglomeration under U.S. regulatory frameworks. As a U.S. facility, Litchfield WPCF operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Connecticut Department of Energy and Environmental Protection (CT DEEP). For plants of this scale, secondary treatment is typically required, with possible additional nutrient removal to protect sensitive watersheds. The plant's treated effluent discharges into receiving waters that flow into the Housatonic River, which ultimately drains into Long Island Sound. This water body supports diverse aquatic life and is an important estuarine habitat. Proper treatment helps maintain water quality in the Housatonic River and downstream coastal ecosystems.

Litchfield WPCF discharges into local streams that are part of the Housatonic River watershed. The Housatonic River flows south through western Connecticut and Massachusetts before emptying into Long Island Sound, a major estuary that supports fisheries, migratory birds, and recreational activities. The watershed includes sensitive aquatic habitats that benefit from effective nutrient and pollutant removal.