Overview
Cayey WWTP serves approximately 32,421 people in Sector Berríos, Cidra, Puerto Rico. The plant has a designed capacity of 1.00 million gallons per day and operates under U.S. EPA and Puerto Rico environmental regulations.
Cayey WWTP is a municipal wastewater treatment facility located in Sector Berríos, Cidra, Puerto Rico, serving a population of about 32,421. The plant is situated inland, more than 50 km from the coast, and plays a key role in managing wastewater for the surrounding community. With a designed capacity of 1.00 million gallons per day, the plant is classified as a medium-sized facility. As a U.S. territory, Puerto Rico follows the Clean Water Act and EPA NPDES permitting framework, which requires secondary treatment for municipal plants of this scale. The plant's treatment processes are expected to meet federal effluent guidelines to protect water quality. The treated effluent from Cayey WWTP discharges into local waterways that ultimately drain into the Caribbean Sea. The plant helps protect downstream aquatic ecosystems, including rivers and coastal waters, by reducing pollutant loads and supporting water quality standards for recreational and ecological uses.
Environmental context
Cayey WWTP discharges into local streams that flow toward the southern coast of Puerto Rico, eventually reaching the Caribbean Sea. The watershed supports diverse aquatic life and provides habitat for freshwater species. Protecting this water body is important for maintaining ecological balance and supporting downstream coastal ecosystems, including coral reefs and mangroves.
Frequently asked questions
Cayey WWTP is located in Sector Berríos, Cidra, Puerto Rico, at coordinates 18.134 N, -66.172 W.
The plant serves approximately 32,421 people in the surrounding community.
The treated effluent is discharged into local streams that flow toward the southern coast of Puerto Rico and eventually into the Caribbean Sea.
As a facility in Puerto Rico, Cayey WWTP operates under the U.S. Clean Water Act and is subject to EPA NPDES permitting, which mandates secondary treatment for municipal plants of this size.
Plants of this scale in Puerto Rico typically employ secondary treatment processes, such as activated sludge or trickling filters, to meet EPA effluent standards before discharge.
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