COIN WWTP - Secondary Wastewater Treatment in Page County, Iowa

COIN WWTP is a municipal wastewater treatment facility located in Page County, Iowa, United States. It serves a small population of 278 residents, reflecting its role in a rural community. The plant is situated inland, away from coastal zones, and its operations are part of the broader wastewater infrastructure in southwestern Iowa. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 113.56 volume units and a discharge volume of 113.56, the facility operates at full capacity. As a US plant, it is subject to the Clean Water Act and likely operates under an NPDES permit issued by the Iowa Department of Natural Resources, which sets effluent limits to protect water quality. The treated effluent from COIN WWTP discharges into local streams that drain into the Missouri River watershed, ultimately reaching the Mississippi River and the Gulf of Mexico. This connection underscores the plant's role in protecting downstream aquatic ecosystems and maintaining water quality in the region.

COIN WWTP discharges into tributaries of the Missouri River, which flows into the Mississippi River and eventually the Gulf of Mexico. The local watershed supports agricultural land use and diverse aquatic life. The plant's secondary treatment helps reduce nutrient loading, which is critical for mitigating hypoxia in the Gulf of Mexico.