Pleasant Hill WWTP and Sewer System | Advanced Treatment in Ohio

The Pleasant Hill WWTP and Sewer System is a municipal wastewater treatment facility located in Pleasant Hill, Miami County, Ohio. Serving a population of 1,134, the plant provides advanced treatment to ensure high-quality effluent before discharge. The facility operates under the regulatory framework of the U.S. Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for all point source discharges. As a small agglomeration, the plant is subject to state-level oversight by the Ohio Environmental Protection Agency. Advanced treatment processes go beyond secondary treatment to remove additional nutrients and contaminants, reflecting a commitment to protecting local water quality. The plant's designed capacity of 757.08 cubic meters per day aligns with its current discharge volume, indicating efficient operation. The advanced classification suggests the use of technologies such as filtration, nutrient removal, or disinfection. The treated effluent is discharged into a local waterway within the Great Miami River watershed, which ultimately flows into the Ohio River and then the Mississippi River. This downstream chain supports diverse aquatic life and provides drinking water for communities. The plant's advanced treatment helps reduce nutrient loading and protect the ecological health of the receiving waters.

The plant discharges into a tributary of the Great Miami River, which flows into the Ohio River and then the Mississippi River, eventually reaching the Gulf of Mexico. This watershed supports a variety of fish and wildlife species, including freshwater mussels and migratory birds. Advanced treatment at the plant helps minimize nutrient pollution, which is critical for preventing algal blooms and maintaining oxygen levels in downstream waters.