INARAJAN DISTRICT WWTF - Secondary Wastewater Treatment in Inalåhan, Guam

INARAJAN DISTRICT WWTF is a municipal wastewater treatment facility located in Inalåhan, Guam, a U.S. territory in the western Pacific Ocean. The plant serves a population of approximately 3,010 residents, providing secondary treatment to manage domestic wastewater from the community. The plant operates under the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater discharges. With a designed capacity of 719.23 units and an average discharge volume of 264.98 units, the facility is sized to handle the local population's wastewater. As a secondary treatment plant, it uses biological processes to reduce organic matter and suspended solids before discharge. The treated effluent is released into the coastal waters of Guam, which ultimately drain into the Philippine Sea. The surrounding marine environment supports coral reefs and diverse aquatic life. Proper treatment is essential to protect these sensitive ecosystems from nutrient pollution and pathogens.

The plant discharges treated wastewater into the coastal waters of Guam, which flow into the Philippine Sea. This marine environment supports coral reef ecosystems and diverse marine species, making effective treatment critical to prevent eutrophication and protect water quality. The facility's secondary treatment helps reduce organic pollutants and suspended solids before release.