ST DONATUS STP - Jackson County, Iowa Wastewater Treatment Plant

ST DONATUS STP is a municipal wastewater treatment facility located along the Great River Road in Jackson County, Iowa, United States. The plant serves a small population of 140 residents, reflecting its role in a rural community along the Mississippi River corridor. The plant provides secondary treatment, which is the standard level required under the U.S. Clean Water Act for municipal facilities. With a designed capacity of 113.56 m³/day and an actual discharge volume of 37.85 m³/day, the plant operates well within its capacity, indicating effective treatment for its service area. The treated effluent is discharged into a local water body that ultimately drains into the Mississippi River, a major North American waterway. The plant's operations help protect the Mississippi River ecosystem, which supports diverse aquatic life and serves as a critical migratory corridor for birds and fish.

The plant discharges into a tributary of the Mississippi River, which flows south to the Gulf of Mexico. The Mississippi River basin is one of the largest in the world, supporting a wide range of aquatic species and providing habitat for migratory waterfowl. The plant's secondary treatment helps reduce nutrient and pollutant loads, contributing to the ecological health of the river system.