ALLEGAN STP - Wastewater Treatment Plant in Allegan, Michigan

ALLEGAN STP is a municipal wastewater treatment facility located at 53 Glass Street in Allegan, Michigan. The plant serves a population of approximately 5,091 residents in this southwestern Michigan community, situated along the Kalamazoo River. As a small-to-medium agglomeration, the facility plays a key role in managing local wastewater and protecting downstream water quality. The plant operates under the regulatory framework of the US Clean Water Act, administered by the Michigan Department of Environment, Great Lakes, and Energy (EGLE). Facilities of this scale typically employ secondary treatment as a minimum, with possible nutrient removal to meet state water quality standards. The designed capacity is 1.00 million gallons per day, indicating a plant sized for the community's needs. The treated effluent from ALLEGAN STP is discharged to the Kalamazoo River, which flows westward through Allegan County and eventually into Lake Michigan at Saugatuck. The Kalamazoo River watershed supports diverse aquatic life and is an important recreational and ecological resource. The plant's operations contribute to maintaining water quality in this Great Lakes tributary, helping to protect both local ecosystems and the broader Lake Michigan basin.

ALLEGAN STP discharges to the Kalamazoo River, a major waterway in southwestern Michigan that flows into Lake Michigan. The river supports a variety of fish species and provides habitat for migratory birds along the Lake Michigan shoreline. The watershed is influenced by agricultural and urban runoff, making effective wastewater treatment critical for maintaining water quality and aquatic health in this Great Lakes tributary.