Overview
Two Rivers WWTP serves approximately 15,000 residents in Two Rivers, Wisconsin. The plant discharges treated wastewater into Lake Michigan, supporting the local watershed and Great Lakes ecosystem.
Two Rivers WWTP is a municipal wastewater treatment facility located in Two Rivers, Wisconsin, along the shores of Lake Michigan. Serving a population of about 15,000, the plant plays a key role in managing wastewater for this coastal community in Manitowoc County. As a US facility, Two Rivers WWTP operates under the Clean Water Act and is subject to National Pollutant Discharge Elimination System (NPDES) permits issued by the Wisconsin Department of Natural Resources. For a plant of this scale, secondary treatment is typically required, with additional nutrient removal standards applicable to Great Lakes discharges. The plant's treated effluent is discharged into Lake Michigan, part of the larger Great Lakes system. This watershed supports diverse aquatic life and provides drinking water for millions. The plant's operations are critical to protecting water quality in this ecologically sensitive region.
Environmental context
Two Rivers WWTP discharges into Lake Michigan, the second-largest Great Lake by volume. The lake drains via the Straits of Mackinac into Lake Huron and ultimately to the Atlantic Ocean through the St. Lawrence River. The nearshore zone supports fish spawning, migratory birds, and recreational uses. Nutrient loading from wastewater can contribute to algal blooms, making advanced treatment important for this freshwater ecosystem.
Frequently asked questions
Two Rivers WWTP is located on Mariners Trail in Two Rivers, Manitowoc County, Wisconsin, United States, along the western shore of Lake Michigan.
The plant serves approximately 15,045 residents in the city of Two Rivers and surrounding areas.
The plant discharges treated effluent into Lake Michigan, which is part of the Great Lakes system. The discharge is regulated under the Clean Water Act via an NPDES permit issued by the Wisconsin Department of Natural Resources.
As a US facility, Two Rivers WWTP operates under the Clean Water Act and is subject to NPDES permits. For Great Lakes discharges, additional phosphorus and nutrient limits may apply to protect water quality.
Plants of this scale in the US typically employ secondary treatment, which includes biological processes to remove organic matter and suspended solids. For Great Lakes facilities, tertiary treatment for nutrient removal is often required to meet stringent water quality standards.
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