Overview
Alpena WWTS serves approximately 10,490 people in Alpena, Michigan. The plant discharges treated wastewater into the Lake Huron watershed, supporting the Great Lakes ecosystem.
Alpena WWTS is a municipal wastewater treatment facility located at 289 Water Street in Alpena, Michigan, on the shores of Lake Huron. The plant serves a population of about 10,490 residents in this northeastern Michigan community, situated within the Thunder Bay River watershed. As a US facility, Alpena WWTS operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permitting, typically administered by the Michigan Department of Environment, Great Lakes, and Energy (EGLE). For a plant serving a medium-sized agglomeration of this scale, secondary treatment is the standard requirement, though advanced treatment may be needed for nutrient removal to protect sensitive Great Lakes waters. The plant's treated effluent ultimately reaches Lake Huron, one of the five Great Lakes that hold 21% of the world's surface freshwater. The receiving waters support diverse aquatic life, including lake trout, whitefish, and walleye, and provide drinking water for millions. Protecting water quality in this basin is critical for both ecological health and regional water security.
Environmental context
Alpena WWTS discharges into the Lake Huron basin, part of the Great Lakes system, which drains via the St. Clair River, Lake Erie, Niagara River, Lake Ontario, and the St. Lawrence River to the Atlantic Ocean. The plant's location within 50 km of the coast places it in a sensitive nearshore zone where nutrient inputs can contribute to algal blooms and impact fish habitat. The Thunder Bay River, which flows through Alpena, is a tributary to Lake Huron and supports a coldwater fishery including brook trout and salmon.
Frequently asked questions
Alpena WWTS is located at 289 Water Street in Alpena, Michigan, United States, near the shore of Lake Huron.
The plant serves approximately 10,490 residents in the city of Alpena and surrounding areas.
The plant discharges treated effluent into the Lake Huron watershed, likely via the Thunder Bay River or a direct outfall to the lake, under an NPDES permit.
Alpena WWTS operates under the US Clean Water Act, with NPDES permits issued by the Michigan Department of Environment, Great Lakes, and Energy (EGLE).
For a medium-sized agglomeration like Alpena, secondary treatment is standard. However, plants in the Great Lakes basin may require additional nutrient removal to meet water quality standards.
Nearby plants