Suttons Bay STP - Municipal Wastewater Treatment in Suttons Bay Township, Michigan

Suttons Bay STP is a municipal wastewater treatment facility located in Suttons Bay Township, Leelanau County, Michigan. The plant serves a population of approximately 3,047 residents, making it a small-scale treatment facility in the region. It is situated near the shores of Lake Michigan, within 50 kilometers of the coast. The plant's designed capacity is 1.00 million gallons per day, reflecting its role in managing local wastewater flows. As a US facility, it operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Michigan Department of Environment, Great Lakes, and Energy (EGLE). These permits set effluent limits to protect water quality. The treated effluent from Suttons Bay STP is discharged into the Lake Michigan watershed, which drains into the Great Lakes system. Lake Michigan is a critical freshwater resource supporting diverse aquatic life, recreational activities, and municipal water supplies. The plant's operations are important for maintaining the ecological health of the local shoreline and nearshore waters.

The plant discharges into the Lake Michigan basin, part of the Great Lakes system, which ultimately drains to the Atlantic Ocean via the St. Lawrence River. Lake Michigan supports a diverse ecosystem including native fish species and migratory birds. The nearshore area is sensitive to nutrient loading, which can lead to algal blooms and impact water quality. The plant's treatment processes help mitigate these risks by reducing pollutants before discharge.