Water Reclamation Project - Fairfax County, Virginia Wastewater Treatment

The Water Reclamation Project is a major wastewater treatment facility located in Fairfax County, Virginia, serving a population of approximately 324,000 residents. As a large-scale municipal plant, it plays a critical role in managing wastewater from one of the most populous counties in the Washington, D. C. metropolitan area. Under the US Clean Water Act, plants of this scale are required to meet secondary treatment standards as a minimum, with additional nutrient removal requirements in sensitive watersheds like the Chesapeake Bay region. The plant's designed capacity of 1. The plant discharges treated effluent into local waterways that ultimately drain into the Potomac River and Chesapeake Bay. This watershed is ecologically significant, supporting diverse aquatic life and serving as a critical habitat for migratory fish species. The Chesapeake Bay's health is closely tied to nutrient management from wastewater facilities in the region.

The plant's treated effluent flows into tributaries of the Potomac River, which drains into the Chesapeake Bay, the largest estuary in the United States. The Chesapeake Bay watershed is ecologically sensitive, supporting diverse aquatic species and important fisheries. Nutrient loading from wastewater is a key concern, and plants in this region often implement advanced treatment to reduce nitrogen and phosphorus.