Overview
Hill Point SD STP is a secondary wastewater treatment plant serving 109 people in the Town of Washington, Wisconsin. It discharges 37.85 m³/day of treated effluent into local waterways.
Hill Point SD STP is a small municipal wastewater treatment plant located in the Town of Washington, Sauk County, Wisconsin. It serves a population of 109 residents, reflecting its role as a rural community facility. The plant provides secondary treatment, which is the standard level required by the US Clean Water Act for municipal wastewater. With a designed capacity of 41.64 m³/day and an actual discharge volume of 37.85 m³/day, it operates below its capacity. The plant is regulated under the National Pollutant Discharge Elimination System (NPDES) permit program, administered by the Wisconsin Department of Natural Resources. The treated effluent is discharged to a nearby unnamed stream, which flows into the Baraboo River watershed and eventually reaches the Wisconsin River and the Mississippi River. This downstream connection highlights the plant's role in protecting water quality in the Upper Mississippi River Basin.
Environmental context
The plant discharges into a small tributary of the Baraboo River, which flows into the Wisconsin River and then the Mississippi River. This watershed supports diverse aquatic life, including fish species such as smallmouth bass and walleye. The region's agricultural land use can contribute nutrient runoff, making the plant's secondary treatment important for reducing biochemical oxygen demand and suspended solids before discharge.
Frequently asked questions
Hill Point SD STP is located on Village Road in Hill Point, Town of Washington, Sauk County, Wisconsin, United States.
The plant serves a population of 109 people, making it a small-scale municipal wastewater treatment facility.
The plant discharges treated effluent at a rate of 37.85 m³/day into a nearby unnamed stream, which flows into the Baraboo River watershed.
As a US facility, it operates under the Clean Water Act and is regulated via an NPDES permit issued by the Wisconsin Department of Natural Resources, which sets effluent limits for secondary treatment.
For small communities in Wisconsin, secondary treatment is standard, as required by the Clean Water Act. This typically involves biological treatment to reduce organic matter and suspended solids.
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