STOUT WWTP - Grundy County, Iowa Wastewater Treatment Plant

STOUT WWTP is a municipal wastewater treatment facility located in Grundy County, Iowa, serving a small population of 192 residents. The plant provides secondary treatment, a standard level for small communities in the United States, ensuring compliance with federal and state water quality standards. The plant has a designed capacity of 75.71 units and processes a similar daily discharge volume, indicating full utilization. As a secondary treatment facility, it uses biological processes to reduce organic matter and suspended solids before discharge. The plant operates under the U.S. The treated effluent is discharged into local waterways within the Iowa River basin, which ultimately drains to the Mississippi River and the Gulf of Mexico. The plant plays a key role in protecting downstream water quality in this agriculturally intensive region, where nutrient management is critical to prevent hypoxia in the Gulf.

The plant discharges into local streams within the Iowa River watershed, which flows into the Mississippi River and eventually the Gulf of Mexico. This region is part of the Mississippi River Basin, where nutrient pollution from wastewater and agriculture contributes to the Gulf of Mexico hypoxic zone. The plant's secondary treatment helps reduce organic pollutants, but nutrient removal is limited, making downstream water quality management important for aquatic life and ecosystem health.