ST LOUIS WWTP - Saint Louis, Michigan Wastewater Treatment Plant

ST LOUIS WWTP is a municipal wastewater treatment facility located at 298 East Prospect Street in Saint Louis, Michigan, within Gratiot County. The plant serves a population of about 8,411 people, typical of a small to medium-sized community in the Great Lakes region. It is situated inland, more than 50 kilometers from the nearest coast. As a U.S. facility, the plant operates under the Clean Water Act, administered by the U.S. EPA and the Michigan Department of Environment, Great Lakes, and Energy (EGLE). The plant's design capacity and discharge volume are not publicly reported, but regulatory compliance ensures that effluent meets water quality standards. The treated wastewater from ST LOUIS WWTP is discharged into the Pine River, which flows into the Chippewa River, then the Tittabawassee River, and ultimately into Saginaw Bay of Lake Huron. This watershed supports diverse aquatic life and is an important part of the Great Lakes ecosystem. The plant's operations help protect downstream water quality and recreational uses.

ST LOUIS WWTP discharges into the Pine River, a tributary of the Chippewa River, which flows into the Tittabawassee River and then Saginaw Bay, part of Lake Huron. This watershed supports diverse fish populations and is used for recreation. The plant's effluent contributes to the overall nutrient load in the bay, which is a concern for algal blooms in the Great Lakes.