Overview
WATERTOWN STP serves approximately 23,895 residents in Watertown, Wisconsin. The plant discharges treated wastewater into the local watershed, ultimately draining to the Mississippi River basin.
WATERTOWN STP is a municipal wastewater treatment plant located at 778 Hoffman Road in Watertown, Wisconsin, serving a population of about 23,895. The facility operates under the regulatory framework of the U.S. Clean Water Act, administered by the Wisconsin Department of Natural Resources, which issues National Pollutant Discharge Elimination System (NPDES) permits for such facilities. As a medium-sized agglomeration, the plant is expected to provide at least secondary treatment, which is the standard for municipal wastewater plants in the United States. Typical plants of this scale employ activated sludge or similar biological treatment processes to meet permit limits. The treated effluent is discharged to a receiving water body within the Rock River watershed, which flows into the Mississippi River and ultimately to the Gulf of Mexico. The plant plays a key role in protecting local water quality and the downstream aquatic ecosystem, including fish habitats and recreational waters.
Environmental context
The plant discharges into the Rock River watershed, which flows southward to the Mississippi River and then to the Gulf of Mexico. The downstream environment includes diverse aquatic life and supports migratory fish species. The plant's operations help maintain water quality in the Rock River, which is used for recreation and as a drinking water source for downstream communities.
Frequently asked questions
WATERTOWN STP is located at 778 Hoffman Road in Watertown, Wisconsin, United States.
The plant serves approximately 23,895 residents in the Watertown area.
The plant discharges treated effluent into the Rock River watershed, which flows to the Mississippi River and ultimately the Gulf of Mexico.
The plant operates under the U.S. Clean Water Act, with NPDES permits issued by the Wisconsin Department of Natural Resources.
Plants of this scale typically provide secondary treatment, such as activated sludge, to meet EPA standards for organic and solids removal.
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