Clermont Co Nine Mile Creek WWTP | Cincinnati, Ohio Wastewater Treatment Plant

Clermont Co Nine Mile Creek WWTP is a municipal wastewater treatment facility located in Cincinnati, Ohio, serving a population of approximately 15,373. The plant is situated in Clermont County and operates as part of the region's wastewater infrastructure. Under the U.S. Clean Water Act, plants of this scale typically require secondary treatment as a minimum standard. The National Pollutant Discharge Elimination System (NPDES) permit program governs discharge limits to protect water quality. The plant is expected to meet federal and state regulations for effluent quality. The plant discharges into the Ohio River watershed, which flows into the Mississippi River and ultimately the Gulf of Mexico. The receiving waters support diverse aquatic life and are used for recreation and drinking water downstream. Proper treatment helps reduce nutrient loading and protect ecological health.

The plant discharges into the Ohio River basin, part of the larger Mississippi River system that drains to the Gulf of Mexico. The Ohio River supports diverse fish and wildlife, including migratory species. Downstream ecosystems benefit from nutrient reduction to prevent algal blooms and hypoxia in the Gulf.