Sistersville WWTP - Secondary Wastewater Treatment in Sistersville, West Virginia

Sistersville WWTP is a municipal wastewater treatment facility located in Sistersville, West Virginia, serving a population of about 1,800. The plant is situated in the Ohio River Valley, a region characterized by rolling hills and a humid continental climate. As a secondary treatment plant, it provides biological treatment to remove organic matter and suspended solids, meeting the standard requirements for small communities under the U.S. Clean Water Act. The plant has a designed capacity of 1,135.62 cubic meters per day and currently treats an average daily flow of 908.50 cubic meters, operating below its design capacity. Under the National Pollutant Discharge Elimination System (NPDES), the plant is required to meet effluent limits that protect water quality in the receiving stream. The facility is owned and operated by the local municipality, ensuring compliance with state and federal regulations. The treated effluent from Sistersville WWTP discharges into a tributary of the Ohio River, which flows into the Mississippi River and ultimately the Gulf of Mexico. The Ohio River supports diverse aquatic life and provides drinking water for millions of people downstream. The plant plays a critical role in protecting water quality in this major river system by reducing nutrient and pollutant loads.

The plant discharges into the Ohio River basin, a major tributary of the Mississippi River. The Ohio River supports a variety of fish species and is an important migratory corridor for birds. Downstream, the river flows into the Mississippi and then the Gulf of Mexico, where nutrient pollution contributes to seasonal hypoxic zones. The plant's secondary treatment helps reduce organic and nutrient loads, mitigating impacts on downstream ecosystems.