Overview
Groton City WPCF serves 12,600 residents in Groton, Connecticut, discharging treated wastewater into the Thames River estuary near Long Island Sound.
Groton City WPCF is a municipal wastewater treatment facility located on Thames Street in Groton, Connecticut. The plant serves a population of approximately 12,600 people within the city and surrounding areas. As a facility in the United States, it operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permitting requirements. The plant has a designed capacity of 1.00 million gallons per day. facilities of this scale typically employ secondary treatment as a minimum standard. The plant's operational status and permit details are managed by the Connecticut Department of Energy and Environmental Protection (DEEP), which oversees NPDES compliance in the state. Treated effluent from Groton City WPCF is discharged into the Thames River, a tidal estuary that flows into Long Island Sound. This water body supports diverse aquatic life, including migratory fish species, and is part of the larger Atlantic coastal watershed. The plant's location within 50 km of the coast underscores its role in protecting downstream marine environments from nutrient and pollutant loading.
Environmental context
The plant discharges into the Thames River, which flows into Long Island Sound, a vital estuary supporting commercial fisheries, recreational activities, and diverse marine habitats. The Sound is a significant ecological resource, providing nursery grounds for fish and shellfish. Nutrient management is critical in this watershed to prevent eutrophication and hypoxia, which can impact water quality and aquatic life.
Frequently asked questions
Groton City WPCF is located on Thames Street in Groton, Connecticut, United States.
The plant serves approximately 12,600 residents in the City of Groton and surrounding areas.
Treated effluent is discharged into the Thames River, a tidal estuary that flows into Long Island Sound.
As a U.S. facility, it operates under the Clean Water Act and is regulated via an NPDES permit issued by the Connecticut Department of Energy and Environmental Protection.
Plants of this scale in the U.S. typically employ secondary treatment as a minimum, with possible nutrient removal if discharging to sensitive waters like Long Island Sound.
Nearby plants