Piqua WWTP and Sewer System - Municipal Wastewater Treatment in Piqua, Ohio

Piqua WWTP and Sewer System is a municipal wastewater treatment facility located in Piqua, Ohio, serving a population of about 21,373. The plant is situated along the Great Miami River, which flows through the city and ultimately drains into the Ohio River. As a medium-sized agglomeration, the facility plays a key role in protecting local water quality and public health. Under the U.S. Clean Water Act, municipal wastewater treatment plants of this scale are typically required to provide at least secondary treatment, as defined by the EPA's National Pollutant Discharge Elimination System (NPDES) permit program. The plant's NPDES permit, issued by the Ohio Environmental Protection Agency, sets effluent limits for biochemical oxygen demand, total suspended solids, and other pollutants to ensure compliance with water quality standards. The treated effluent from the Piqua WWTP is discharged into the Great Miami River, which flows southwest to join the Ohio River near Cincinnati. The river supports diverse aquatic life and is used for recreation, drinking water supply, and industrial purposes downstream. The plant's operations are critical to maintaining the ecological health of the Great Miami River watershed.

The Piqua WWTP discharges into the Great Miami River, a major tributary of the Ohio River, which flows into the Mississippi River and ultimately the Gulf of Mexico. The Great Miami River watershed supports diverse aquatic species and provides habitat for fish, mussels, and other wildlife. Downstream water quality is influenced by the plant's treatment performance, as the river is used for recreation and as a drinking water source for downstream communities.