Floyd STP Wastewater Treatment Plant, Floyd County, Virginia

Floyd STP is a municipal wastewater treatment plant located in Floyd County, Virginia, serving a small population of 575 residents. The plant provides secondary treatment, which is the standard level required by the U.S. Clean Water Act for domestic wastewater before discharge into surface waters. The plant has a designed capacity of 946.35 thousand gallons per day and currently discharges an average of 488.32 thousand gallons per day, indicating it operates well below its capacity. As a facility in the United States, it operates under the National Pollutant Discharge Elimination System (NPDES) permit program, which sets effluent limits to protect water quality. The treated effluent from Floyd STP is discharged into local waterways that ultimately drain into the Roanoke River basin and then to the Albemarle Sound in North Carolina. The plant plays a key role in protecting the region's streams and rivers from untreated sewage, supporting aquatic life and downstream water quality.

Floyd STP discharges into local streams that are part of the Roanoke River watershed, which flows into the Albemarle Sound and the Atlantic Ocean. The region's waterways support diverse aquatic species and are important for recreation and drinking water supplies downstream. The plant's secondary treatment helps reduce nutrient and organic pollutant loads, protecting the ecological health of the watershed.