Corozal WWTP - Municipal Wastewater Treatment in Corozal, Puerto Rico

Corozal WWTP is a municipal wastewater treatment facility serving the community of Corozal, Puerto Rico, a municipality in the central mountainous region of the island. The plant serves a population of about 8,685 people and is part of the island's wastewater infrastructure managed under U.S. federal regulations. As a facility in a U.S. territory, the plant operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Puerto Rico Environmental Quality Board (EQB). The designed capacity is 1.00 million gallons per day, indicating a moderate-sized facility for a small urban community. The plant discharges treated wastewater into local waterways that eventually drain to the Atlantic Ocean. Corozal is situated in the Cibuco River watershed, which flows northward to the coast. The receiving waters support aquatic life and are important for local ecosystems, including coastal habitats near the discharge point.

Corozal WWTP discharges into the Cibuco River watershed, which flows north through Puerto Rico's karst region before reaching the Atlantic Ocean near the town of Vega Baja. The downstream environment includes coastal wetlands and nearshore marine habitats that support diverse aquatic species, including fish and crustaceans important to local fisheries. The plant's location within 50 km of the coast means its effluent can influence coastal water quality, particularly during low-flow conditions.