Stamford WPCF - Wastewater Treatment Plant in Stamford, Connecticut

Stamford Water Pollution Control Facility (WPCF) is the primary wastewater treatment plant for Stamford, Connecticut, a coastal city in Fairfield County. The plant serves a population of around 74,000, placing it in the medium-to-large agglomeration category under U. S. EPA guidelines. As a U. S. facility, Stamford WPCF operates under the Clean Water Act's National Pollutant Discharge Elimination System (NPDES) permit program, which sets effluent limits to protect water quality. The plant's designed capacity is 1. The treated effluent is discharged into the Long Island Sound, an ecologically significant estuary that supports diverse marine life, including shellfish, finfish, and migratory birds. The plant's location within 50 km of the coast means its discharge contributes to the nutrient load in the Sound, which is subject to regional nitrogen reduction initiatives to prevent hypoxia.

Stamford WPCF discharges into the Long Island Sound, a large estuary connected to the Atlantic Ocean. The Sound is a critical habitat for species such as lobsters, winter flounder, and migratory waterfowl. The plant's effluent contributes to nitrogen levels, which can cause algal blooms and hypoxia, making nutrient management a key environmental concern in this watershed.