PEWAMO WWTP - Lyons Township, Michigan Wastewater Treatment Plant

PEWAMO WWTP is a municipal wastewater treatment facility located in Lyons Township, Ionia County, Michigan. It serves a small community of 479 residents, reflecting its role as a local-scale treatment plant within the state's wastewater infrastructure. The plant operates with secondary treatment, which is the standard level required under the U.S. Clean Water Act for municipal facilities. With a designed capacity of 264.98 megaliters per year and a current discharge volume of 189.27 megaliters per year, the plant operates below its capacity, indicating room for future growth or seasonal variability. The treated effluent is discharged into the local watershed, which ultimately drains into the Grand River and then into Lake Michigan. This connection to the Great Lakes system underscores the plant's role in protecting downstream aquatic habitats and the broader Lake Michigan ecosystem from nutrient pollution and other contaminants.

The plant discharges into the Grand River basin, which flows into Lake Michigan, a vital freshwater resource supporting diverse aquatic life and regional water supply. The watershed is part of the larger Great Lakes system, where nutrient management is critical to prevent algal blooms and maintain water quality. The plant's secondary treatment helps reduce organic pollutants and suspended solids before discharge.