Harrison WWTF - Secondary Wastewater Treatment Plant in Harrison, Michigan

Harrison WWTF is a municipal wastewater treatment facility located in Harrison, Michigan, serving a population of approximately 2,108 residents. The plant operates under the regulatory framework of the U.S. Clean Water Act, which requires secondary treatment for municipal wastewater discharges. The plant provides secondary treatment, a standard level for facilities of this scale in the United States. It has a designed capacity of 832.79 thousand gallons per day and currently treats an average daily flow of 454.25 thousand gallons per day, indicating operational headroom. Treated effluent from the plant is discharged into local waterways that ultimately drain into the Great Lakes basin, specifically Lake Michigan. The plant plays a key role in protecting downstream water quality and aquatic ecosystems in this sensitive freshwater region.

The plant discharges into a tributary of the Muskegon River system, which flows into Lake Michigan, part of the Great Lakes ecosystem. The Great Lakes support diverse aquatic life and are a critical freshwater resource. The plant's secondary treatment helps reduce nutrient and pollutant loads, protecting downstream habitats and water quality.