Pocahontas WWTP - Secondary Wastewater Treatment in Pocahontas, Iowa

Pocahontas WWTP is a municipal wastewater treatment plant located in Pocahontas, Iowa, United States. The facility serves a population of approximately 1,989 residents, classifying it as a small-scale treatment plant under U.S. regulatory frameworks. The plant is situated on Southeast Railroad Street in Pocahontas County. The plant provides secondary treatment, which is the standard level required by the U.S. Clean Water Act for municipal wastewater facilities. Secondary treatment typically involves biological processes to remove organic matter and suspended solids. The plant has a designed capacity of 2,309.09 million gallons per year and currently discharges 806.29 million gallons per year, indicating operational capacity below its design limits. The treated effluent is discharged into a local water body, contributing to the regional watershed. As an inland facility in Iowa, the plant's discharge ultimately drains into the Mississippi River basin, supporting downstream aquatic ecosystems. Proper treatment helps protect water quality in the region's rivers and streams.

The plant discharges into a local water body that is part of the Mississippi River basin. The treated effluent flows through smaller streams and rivers before reaching the Mississippi River, which eventually drains into the Gulf of Mexico. This watershed supports diverse aquatic life and is an important ecological corridor for migratory fish and waterfowl. The plant's secondary treatment helps reduce nutrient loading and protect downstream water quality.