Overview
Sherwood STP is an advanced wastewater treatment plant serving 2,741 people in Sherwood, Wisconsin. It discharges treated water into the Lake Michigan basin, supporting regional water quality.
Sherwood STP is a municipal wastewater treatment facility located in Sherwood, Calumet County, Wisconsin. The plant serves a population of approximately 2,741 residents, providing advanced treatment to protect public health and the environment. It operates under the regulatory framework of the US Clean Water Act, which mandates National Pollutant Discharge Elimination System (NPDES) permits for all point source discharges. The plant employs advanced treatment processes, which go beyond secondary treatment to remove additional nutrients and contaminants. Its designed capacity is 1,135.62 million gallons per day, with an average daily discharge volume of 794.94 million gallons. This capacity utilization indicates the plant is operating below its design capacity, allowing for future growth. The treated effluent from Sherwood STP is discharged into a receiving water body that ultimately drains into Lake Michigan, one of the Great Lakes. The plant plays a crucial role in protecting the Lake Michigan watershed from nutrient pollution and other contaminants, supporting aquatic life and recreational uses downstream.
Environmental context
Sherwood STP discharges into a tributary of Lake Michigan, part of the Great Lakes system. The Lake Michigan watershed supports diverse aquatic ecosystems, including coldwater fisheries and migratory birds. Advanced treatment helps reduce phosphorus and nitrogen loads, mitigating eutrophication risks in nearshore areas and protecting drinking water sources for downstream communities.
Frequently asked questions
Sherwood STP is located in Sherwood, Calumet County, Wisconsin, United States. The facility serves the local community and discharges into the Lake Michigan watershed.
Sherwood STP serves a population of approximately 2,741 residents in the Sherwood area.
Sherwood STP discharges treated effluent into a receiving water body that flows into Lake Michigan. The plant uses advanced treatment to ensure the effluent meets strict water quality standards.
Sherwood STP operates under the US Clean Water Act, which requires NPDES permits for wastewater discharges. The permit is issued by the Wisconsin Department of Natural Resources or the US EPA, setting limits on pollutants to protect water quality.
In the US, plants serving populations under 10,000 often use secondary treatment, but many employ advanced treatment to meet local water quality requirements. Sherwood STP uses advanced treatment, which includes nutrient removal to protect sensitive water bodies like Lake Michigan.
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