Waynoka Regional WWTP and Sewers - Brown County, Ohio Wastewater Treatment

Waynoka Regional WWTP and Sewers is a municipal wastewater treatment facility located in Brown County, Ohio, serving the Lake Waynoka community. The plant provides secondary treatment for a population of approximately 1,700 residents, reflecting its role as a small-scale agglomeration in rural southern Ohio. Under the US Clean Water Act, the plant operates with an EPA NPDES permit that regulates its discharge. With a designed capacity of 386.11 megaliters and an annual discharge volume of 227.13 megaliters, the facility operates at roughly 59% capacity, indicating adequate headroom for current demand. Secondary treatment is the standard for inland plants of this size, ensuring removal of organic matter and suspended solids. The treated effluent is discharged into local waterways that drain into the Ohio River basin, ultimately reaching the Mississippi River and the Gulf of Mexico. The plant's inland location, over 50 km from the coast, reduces direct marine impact. Its operations help protect the region's streams and rivers from nutrient pollution and pathogens, supporting aquatic life and downstream water quality.

The plant discharges into tributaries of the Ohio River, which flows into the Mississippi River and then the Gulf of Mexico. The local watershed supports diverse aquatic habitats and is part of a larger drainage system that influences the Gulf's hypoxic zone. The plant's secondary treatment reduces organic load and suspended solids, mitigating eutrophication risks in downstream waters.