Betsie Lake Utilities Auth Wastewater Treatment Plant, Frankfort, Michigan

Betsie Lake Utilities Auth is a municipal wastewater treatment plant located in Frankfort, Michigan, serving a population of approximately 2,081. The plant is situated near the shores of Lake Michigan in Benzie County, part of the state's northwestern Lower Peninsula. As a US facility, the plant 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). For a plant serving a small community of this size, secondary treatment is typically required, with additional nutrient removal standards applicable in the Great Lakes basin to address eutrophication concerns. The plant's treated effluent discharges into the Betsie River watershed, which flows into Lake Michigan via Betsie Lake. Lake Michigan is one of the five Great Lakes, holding 20% of the world's surface freshwater. The receiving waters support diverse aquatic life, including lake trout, whitefish, and migratory species, and are ecologically sensitive to nutrient loading and contaminants.

The plant discharges into the Betsie River, which flows through Betsie Lake and into Lake Michigan, part of the Great Lakes system. Lake Michigan is a critical freshwater resource supporting diverse aquatic ecosystems, including coldwater fisheries and migratory birds. The watershed is ecologically sensitive to nutrient pollution, which can cause algal blooms and hypoxia, impacting water quality and recreational use.