Humacao Regional WWTP - Serving Humacao, Puerto Rico | Wastewater Treatment Plant

Humacao Regional WWTP is a municipal wastewater treatment facility located in Humacao, Puerto Rico, serving a population of about 73,478. The plant is situated in the eastern region of the island, near the coast, and plays a key role in managing wastewater from the Humacao area. As a facility in a US territory, the plant is subject to the US Clean Water Act and National Pollutant Discharge Elimination System (NPDES) permitting, administered locally by the Puerto Rico Environmental Quality Board (EQB). For a population of this scale, secondary treatment is typically required, with potential additional nutrient removal if discharging to sensitive waters. The plant's treated effluent likely discharges into nearby coastal waters of the Caribbean Sea, as the facility is within 50 km of the coast. The receiving environment includes ecologically important nearshore habitats such as coral reefs and seagrass beds, which are sensitive to nutrient loading and require effective treatment to protect marine life.

The plant is located in eastern Puerto Rico, within the drainage basin that flows into the Caribbean Sea. The nearby coastal waters support diverse marine ecosystems, including coral reefs and seagrass beds that are sensitive to nutrient pollution. Effective wastewater treatment is critical to prevent eutrophication and protect these habitats, which also support local fisheries and tourism.