Tecumseh STP Wastewater Treatment Plant, Tecumseh, Michigan

Tecumseh STP is a municipal wastewater treatment plant located at 698 East Chicago Boulevard in Tecumseh, Michigan, within Lenawee County. It serves a population of about 8,863 people, placing it in the small-to-medium agglomeration category under US regulatory frameworks. As a US facility, the plant operates under the National Pollutant Discharge Elimination System (NPDES) permit program, which sets effluent limits based on water quality standards. The plant discharges treated wastewater into local waterways that ultimately drain into the Raisin River watershed, which flows into Lake Erie. This makes the plant's operations relevant to the health of the Great Lakes ecosystem, particularly concerning nutrient loading and aquatic habitat preservation.

Tecumseh STP discharges into the Raisin River watershed, which flows into the western basin of Lake Erie. Lake Erie is a critical freshwater resource that supports diverse aquatic life, including fish species such as walleye and yellow perch. The watershed is also an important migratory corridor for waterfowl. Managing nutrient discharges is essential to prevent eutrophication and harmful algal blooms in the lake.