Overview
Downsville SD 1 STP is a secondary treatment plant serving 310 people in the Town of Dunn, Wisconsin. It discharges treated wastewater into local waterways, supporting the region's water quality.
Downsville SD 1 STP is a municipal wastewater treatment plant located in the Town of Dunn, Dunn County, Wisconsin. Serving a small population of 310, the plant provides secondary treatment to meet state and federal water quality standards under the US Clean Water Act. The plant has a designed capacity of 113.56 million gallons per day and currently processes an average daily flow of 83.28 million gallons, operating well within its capacity. As a secondary treatment facility, it uses biological processes to remove organic matter and suspended solids before discharge. The treated effluent is released into nearby streams that drain into the Chippewa River basin, ultimately flowing to the Mississippi River. This watershed supports diverse aquatic life and recreational activities, making proper treatment essential for protecting downstream ecosystems.
Environmental context
The plant discharges into local tributaries of the Chippewa River, which flows into the Mississippi River. This watershed supports a variety of fish and wildlife, including migratory birds and freshwater mussels. The region's agricultural and rural character means that maintaining low nutrient levels in effluent is important to prevent algal blooms and preserve water quality for downstream communities.
Frequently asked questions
Downsville SD 1 STP is located on County Road C in Downsville, within the Town of Dunn, Dunn County, Wisconsin, United States.
The plant serves a population of 310 people, making it a small-scale municipal wastewater treatment facility.
The plant discharges treated effluent into local streams that are part of the Chippewa River basin, which ultimately flows into the Mississippi River.
The plant provides secondary treatment, which typically involves biological processes to remove organic matter and suspended solids, meeting US Clean Water Act standards.
As a US facility, it operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Wisconsin Department of Natural Resources, ensuring compliance with water quality standards.
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