REMSEN WWTP - Secondary Wastewater Treatment Plant in Remsen, Iowa

REMSEN WWTP is a municipal wastewater treatment facility located in Remsen, Plymouth County, Iowa. It serves a population of approximately 1,513 residents, operating as a secondary treatment plant under the regulatory framework of the United States Clean Water Act. The plant has a designed capacity of 794.93 cubic meters per day and currently discharges 454.25 cubic meters per day of treated effluent. As a secondary treatment facility, it meets the standard requirements for biological treatment of organic matter, which is typical for small communities in the Midwest. The plant's operations are subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Iowa Department of Natural Resources. The treated wastewater from REMSEN WWTP is discharged into a local waterway that ultimately drains into the Missouri River watershed, contributing to the Mississippi River basin. This inland location supports regional water quality and aquatic habitats in the surrounding agricultural landscape.

The plant discharges into a tributary of the Missouri River, which flows into the Mississippi River and eventually the Gulf of Mexico. The local watershed supports diverse aquatic life and is part of an important migratory corridor for birds and fish. The plant's secondary treatment helps reduce nutrient loading and protect downstream water quality in this agriculturally intensive region.