Springville WWTP - Secondary Wastewater Treatment in Springville, Iowa

Springville WWTP is a municipal wastewater treatment plant located in Springville, Linn County, Iowa. It serves a small community of approximately 1,068 residents, providing essential sanitation services for the area. The plant operates under the regulatory framework of the US Clean Water Act, which governs wastewater discharges through the National Pollutant Discharge Elimination System (NPDES) permit program. The plant provides secondary treatment, a standard level that removes biodegradable organic matter and suspended solids. Its designed capacity is 378.54 thousand gallons per day, with an average discharge volume of 605.67 thousand gallons per day, indicating it operates within its capacity. Secondary treatment typically involves biological processes such as activated sludge or trickling filters. The treated effluent is discharged into a local water body, likely a stream or river within the Mississippi River basin. The plant's location inland, over 50 km from the coast, means its discharge affects freshwater ecosystems rather than marine environments. The plant plays a key role in protecting the water quality of local streams and the broader watershed.

The plant discharges into a local waterway that ultimately drains into the Mississippi River basin, a major hydrological system supporting diverse aquatic life and providing water resources for communities downstream. The region's agricultural landscape means the plant helps reduce nutrient loading, which is critical for preventing eutrophication in receiving waters. The plant's secondary treatment ensures compliance with typical US standards for small communities, contributing to the ecological health of the watershed.