Edinburg STP - Wastewater Treatment Plant in Edinburg, Virginia

Edinburg STP is a municipal wastewater treatment facility located in Edinburg, Shenandoah County, Virginia. The plant serves a small population of 955 residents, providing secondary treatment to meet state and federal water quality standards. The plant has a designed capacity of 378.54 thousand gallons per day and currently discharges an average of 340.69 thousand gallons per day. As a secondary treatment facility, it uses biological processes to remove organic matter and suspended solids before discharge. The plant operates under the U.S. Clean Water Act, which requires NPDES permits for all point source discharges. The treated effluent is discharged into a local waterway that is part of the Shenandoah River watershed. The Shenandoah River flows north to join the Potomac River, which ultimately drains into the Chesapeake Bay. The plant's discharge contributes to the overall nutrient and pollutant load in the watershed, making proper treatment essential for the health of the Chesapeake Bay ecosystem.

The plant discharges into a tributary of the Shenandoah River, which flows into the Potomac River and then the Chesapeake Bay. The Chesapeake Bay is a large estuary that supports diverse aquatic life, including blue crabs, oysters, and striped bass. Nutrient pollution from wastewater can contribute to algal blooms and hypoxia in the bay, so secondary treatment helps reduce these impacts.