WELDON WWTP - Secondary Treatment Plant in Decatur County, Iowa

WELDON WWTP is a municipal wastewater treatment facility located in Decatur County, Iowa, United States. The plant serves a small population of 145 residents, reflecting its role in a rural community. It is situated inland, far from coastal areas, and its operations are governed by the US Clean Water Act. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 75.71 units, it operates at full capacity, handling the community's wastewater effectively. As a small facility, it is subject to EPA NPDES permitting, which sets discharge limits to protect water quality. The treated effluent is discharged into a local waterway, likely a tributary of the Mississippi River Basin, which ultimately drains into the Gulf of Mexico. The plant's operations contribute to protecting downstream aquatic ecosystems and maintaining water quality in the region's surface waters.

The plant discharges into a local stream within the Mississippi River Basin, which flows into the Gulf of Mexico. This region supports diverse aquatic life and is part of a major migratory corridor for birds. The plant's secondary treatment helps reduce nutrient loads, mitigating downstream eutrophication risks in the Gulf.