Perry WWTP - Municipal Wastewater Treatment in Perry, Iowa

Perry WWTP is a municipal wastewater treatment facility located in Perry, Iowa, along George P. Soumas Memorial Highway. The plant serves a population of about 7,851 people, classifying it as a small to medium-sized agglomeration under U.S. regulatory standards. Its location in the North Raccoon River watershed places it within the Mississippi River basin, ultimately draining to the Gulf of Mexico. As a U.S. facility, Perry WWTP operates under the National Pollutant Discharge Elimination System (NPDES) permit program, administered by the Iowa Department of Natural Resources. The Clean Water Act requires secondary treatment for municipal plants of this scale, ensuring removal of organic matter and suspended solids. The plant is expected to meet effluent limits for biochemical oxygen demand and total suspended solids. The plant's treated effluent discharges into a local waterway that flows into the North Raccoon River, a tributary of the Des Moines River. This river system is part of the larger Mississippi River watershed, which drains to the Gulf of Mexico. The plant plays a role in protecting water quality in the region, particularly in the context of nutrient management and downstream ecological health.

Perry WWTP discharges into a tributary of the North Raccoon River, which flows into the Des Moines River and ultimately the Mississippi River, reaching the Gulf of Mexico. The watershed supports diverse aquatic life and is part of a region affected by agricultural runoff, making nutrient removal important for downstream water quality. The plant's effluent contributes to the overall nutrient load in the Mississippi River basin, which has implications for the Gulf of Mexico hypoxic zone.