Overview
Hammonassett Park WPCF is a secondary treatment plant serving Madison, Connecticut. It discharges treated wastewater near the Long Island Sound coast, with a design capacity of 946.35 m³/day.
Hammonassett Park Water Pollution Control Facility (WPCF) is a municipal wastewater treatment plant located in Madison, Connecticut, United States. The plant serves a population of approximately 3,000 residents in the South Central Connecticut Planning Region, providing secondary treatment to meet state and federal water quality standards. The facility operates with a design capacity of 946.35 m³/day and currently treats an average daily flow of 681.37 m³/day. As a secondary treatment plant, it utilizes biological processes to remove organic matter and suspended solids. Under the U.S. Clean Water Act, such plants must comply with National Pollutant Discharge Elimination System (NPDES) permits issued by the Connecticut Department of Energy and Environmental Protection, ensuring effluent limits protect receiving waters. The treated effluent is discharged into local waterways that drain to Long Island Sound, an ecologically significant estuary. The plant plays a key role in safeguarding water quality in the Sound, which supports diverse marine life, shellfish beds, and recreational activities. Its coastal location requires careful management to minimize nutrient loading and protect sensitive habitats.
Environmental context
The plant discharges into the Long Island Sound watershed, a major estuary that receives drainage from Connecticut rivers. The Sound supports critical habitats for finfish, shellfish, and migratory birds. As a coastal facility, the plant's nutrient discharges can contribute to eutrophication, making advanced treatment and permit compliance essential for maintaining ecological balance in this productive marine environment.
Frequently asked questions
Hammonassett Park WPCF is located in Madison, Connecticut, United States, within the South Central Connecticut Planning Region.
The plant serves approximately 3,000 residents in the Madison area.
The plant discharges treated effluent into local waterways that flow into Long Island Sound, a major estuary on the Connecticut coast.
The plant operates under the U.S. Clean Water Act, requiring an NPDES permit issued by the Connecticut Department of Energy and Environmental Protection. Secondary treatment is the minimum standard for municipal plants.
Plants of this size typically provide secondary treatment, which includes biological processes to reduce organic pollutants and suspended solids, meeting EPA secondary treatment standards.
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