DICKEYVILLE STP - Advanced Wastewater Treatment in Dickeyville, Wisconsin

DICKEYVILLE STP is a municipal wastewater treatment facility located on Sewer Plant Road in Dickeyville, Grant County, Wisconsin. The plant serves a small population of approximately 1,080 residents, reflecting its role in a rural community in the Upper Midwest. The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the U.S. Clean Water Act. With a designed capacity of 643.52 units and an average daily discharge of 242.27 units, the facility operates well within its capacity. As a U.S. plant, it is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Wisconsin Department of Natural Resources, ensuring compliance with federal water quality standards. The treated effluent is discharged into a local water body that ultimately drains into the Mississippi River basin, a major watershed that supports diverse aquatic life and provides drinking water for millions. The plant's advanced treatment helps protect downstream ecosystems, including the Upper Mississippi River, which is a critical migratory corridor for birds and fish.

The plant discharges into a tributary of the Mississippi River, which flows southward to the Gulf of Mexico. The Upper Mississippi River basin supports a rich diversity of fish, mussels, and waterfowl, and is an important ecological corridor. Advanced treatment at this plant helps reduce nutrient loading, mitigating hypoxia in the Gulf of Mexico.