MARION STP - Marion Township, Michigan Wastewater Treatment Plant

MARION STP is a municipal wastewater treatment plant located in Marion Township, Osceola County, Michigan. It serves a small community of 783 residents, providing essential sanitation services to the area. The plant is situated inland, away from coastal zones, and its operations are regulated under the U.S. Clean Water Act. The plant provides secondary treatment, which is the standard level required for most municipal facilities under the National Pollutant Discharge Elimination System (NPDES) permit program. With a designed capacity of 492.10 and an average daily discharge volume of 340.69, the plant operates below its capacity, indicating room for future growth. Secondary treatment effectively removes organic matter and suspended solids, protecting local water quality. The treated effluent is discharged into a nearby water body, likely a tributary of the Muskegon River or a local stream, which ultimately flows into Lake Michigan. The plant plays a crucial role in safeguarding the health of the Great Lakes ecosystem by reducing nutrient and pollutant loads. Its inland location minimizes direct marine impact, but its discharge contributes to the overall water quality of the Lake Michigan basin.

The plant discharges into a local watercourse that drains into the Muskegon River, which flows into Lake Michigan, part of the Great Lakes system. The Great Lakes are a vital freshwater resource supporting diverse aquatic life and providing drinking water for millions. The plant's secondary treatment helps control nutrient pollution, which is critical to preventing algal blooms and maintaining the ecological balance of the lake.