Massaponax Creek STP - Fredericksburg, Virginia Wastewater Treatment Plant

Massaponax Creek STP is a municipal wastewater treatment facility located in Fredericksburg, Virginia, serving a population of around 62,200. The plant is situated in Spotsylvania County and treats wastewater from the surrounding community before discharging into local waterways. As a medium-sized agglomeration, the plant is subject to the US Clean Water Act and operates under an NPDES permit issued by the Virginia Department of Environmental Quality. The treated effluent from Massaponax Creek STP ultimately flows into the Rappahannock River, which drains into the Chesapeake Bay. This makes the plant's operations significant for the health of the Chesapeake Bay watershed, a large and ecologically important estuary system that supports diverse aquatic life and commercial fisheries.

The plant discharges into the Rappahannock River, which flows into the Chesapeake Bay, the largest estuary in the United States. The Chesapeake Bay watershed is ecologically sensitive, supporting diverse aquatic species and serving as a critical habitat for migratory birds and fish. Nutrient and pollutant loads from wastewater treatment plants in this basin are closely monitored to protect water quality and reduce hypoxia in the bay.