Overview
Norwalk WPCF serves 65,435 people in Norwalk, Connecticut, as a municipal wastewater treatment facility. Located within 50 km of the coast, it discharges into the Long Island Sound watershed.
Norwalk WPCF is a municipal wastewater treatment plant serving the city of Norwalk, Connecticut, located in the Western Connecticut Planning Region. The plant serves a population of approximately 65,435, placing it in the medium-to-large agglomeration category under US regulatory frameworks. As a US facility, Norwalk 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. For a plant of this scale, secondary treatment is typically required, with potential additional nutrient removal standards due to the sensitive nature of the receiving waters. The plant's treated effluent discharges into the Norwalk River or directly into Long Island Sound, an ecologically significant estuary that supports diverse marine life, including shellfish beds and migratory fish. The Sound is a critical habitat and recreational resource for the region, making effective wastewater treatment essential for water quality and ecosystem health.
Environmental context
Norwalk WPCF discharges into the Long Island Sound watershed, a major estuary that connects to the Atlantic Ocean. The Sound supports diverse aquatic life, including finfish, shellfish, and migratory birds, and is a vital economic and recreational resource. Nutrient loading from wastewater can contribute to hypoxia and algal blooms, making advanced treatment important for protecting this sensitive coastal environment.
Frequently asked questions
Norwalk WPCF is located at 17 Pleasant Street, Norwalk, Connecticut, United States, in the Western Connecticut Planning Region.
Norwalk WPCF serves approximately 65,435 people, classifying it as a medium-to-large municipal wastewater treatment facility.
The plant discharges into the Long Island Sound watershed, likely via the Norwalk River or directly into the Sound, which flows into the Atlantic Ocean.
As a US facility, Norwalk WPCF operates under the Clean Water Act and requires an NPDES permit issued by the Connecticut Department of Energy and Environmental Protection, which sets effluent limits for pollutants.
Plants of this scale in the US typically employ secondary treatment, and may include advanced nutrient removal to protect sensitive coastal waters like Long Island Sound.
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