LUNA PIER STP CS - Advanced Wastewater Treatment in Luna Pier, Michigan

LUNA PIER STP CS is an advanced wastewater treatment facility located in Luna Pier, Michigan, a small community along the western shore of Lake Erie. The plant serves a population of 1,534 and handles an annual discharge volume of 832.79 million gallons, with a designed capacity of 1,317.32 million gallons. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. As a US facility, it operates under the Clean Water Act's National Pollutant Discharge Elimination System (NPDES) permit program, administered by the Michigan Department of Environment, Great Lakes, and Energy (EGLE). Advanced treatment is typical for plants discharging to sensitive waters like the Great Lakes. The treated effluent from LUNA PIER STP CS ultimately reaches Lake Erie, part of the Great Lakes system. Lake Erie is a vital freshwater resource that supports diverse aquatic life, including fish species such as walleye and perch, and provides drinking water for millions. The plant's advanced treatment helps protect the lake from nutrient pollution, which can cause harmful algal blooms.

The plant discharges into Lake Erie, the shallowest and most biologically productive of the Great Lakes. Lake Erie's western basin, where Luna Pier is located, is particularly sensitive to nutrient inputs, which can fuel cyanobacterial blooms. The lake drains via the Niagara River into Lake Ontario and eventually the St. Lawrence River to the Atlantic Ocean. The plant's advanced treatment reduces phosphorus and nitrogen loads, helping to mitigate eutrophication risks in this ecologically important freshwater system.