Overview
Coopersville STP in Polkton Township, Michigan serves about 3,910 people. The plant operates under the U.S. Clean Water Act, with a designed capacity of 1.00 million gallons per day.
Coopersville STP is a municipal wastewater treatment plant located in Polkton Township, Ottawa County, Michigan. It serves a population of approximately 3,910 residents in the Coopersville area. The plant is part of the regional wastewater infrastructure managed under state and federal regulations. As a facility serving a small community, Coopersville STP is subject to the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater. The plant has a designed capacity of 1.00 million gallons per day, indicating it is sized to handle the community's wastewater flows. Treatment processes typically include primary sedimentation, biological treatment, and disinfection to meet National Pollutant Discharge Elimination System (NPDES) permit limits. The plant discharges treated effluent to a local waterway, likely a tributary of the Grand River, which flows into Lake Michigan. This makes the plant's performance important for protecting downstream water quality and the ecological health of the Great Lakes basin. Proper treatment helps prevent nutrient pollution and protects aquatic habitats.
Environmental context
Coopersville STP discharges into a tributary of the Grand River, which flows westward into Lake Michigan. Lake Michigan is a major freshwater resource supporting diverse aquatic life, including fish species such as lake trout and whitefish. The plant's effluent must meet strict phosphorus and other nutrient limits to prevent eutrophication in the lake. The surrounding watershed includes agricultural and residential areas, making nutrient management critical for maintaining water quality.
Frequently asked questions
Coopersville STP is located at 5642 Garfield Street, Polkton Township, Ottawa County, Michigan, United States.
The plant serves approximately 3,910 residents in the Coopersville area and surrounding parts of Polkton Township.
The plant discharges treated effluent to a local tributary of the Grand River, which ultimately flows into Lake Michigan.
As a U.S. municipal wastewater plant, Coopersville STP operates under the Clean Water Act and is required to have an NPDES permit issued by the Michigan Department of Environment, Great Lakes, and Energy (EGLE).
For a small community plant in Michigan, typical treatment includes primary clarification, activated sludge or lagoon-based biological treatment, and disinfection. The plant must meet secondary treatment standards and may have additional nutrient limits to protect Lake Michigan.
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