September 8, 2019 — Wastewater treatment facilities in Cottage Grove, Minnesota, with clarifier basins, catwalks, and control structures used in the municipal sewage-treatment process. Such plants are part of local public works systems that remove solids and contaminants from wastewater before treated effluent is discharged. The visible circular tanks and connecting walkways are typical components of modern treatment operations designed for continuous monitoring and maintenance.September 8, 2019 — Sedimentation basins at the Cottage Grove Wastewater Treatment Plant in Cottage Grove, Minnesota, are equipped with rotating collector mechanisms that remove settled solids during primary treatment. Elevated metal walkways and railings provide access to pumps, valves, and mechanical equipment used to operate and maintain the tanks. The facility is part of the municipal wastewater system that treats sewage before discharge, with additional treatment structures and service areas visible beyond the basins.July 5, 2018 — Killdeer Waterworks in Killdeer, North Dakota, is the municipal water treatment and distribution facility for the city. The low brick utility building houses equipment used to process and deliver potable water to local homes, businesses, and public services. Facilities of this type form the core of small-town water systems, handling treatment, pumping, storage, and distribution as part of everyday public utility operations.July 14, 2017 — Marathon City Wastewater Treatment Plant in Marathon City, Wisconsin, with treatment basins, service buildings, and a large storage tank illuminated during overnight operations. The municipal facility processes the village’s wastewater through a series of treatment stages designed to remove solids, organic matter, and other pollutants before treated effluent is released under state and federal permit requirements. Plants of this type operate continuously to manage residential and commercial sewage and to protect downstream water quality.May 18, 2016 — Blue Lake Wastewater Treatment Plant in Savage, Minnesota, is shown from above with a series of circular clarifiers used in the treatment process. Operated by the Metropolitan Council Environmental Services, the facility handles sewage from communities in the Minneapolis-Saint Paul metropolitan area, including Shakopee. These settling basins are part of the plant’s primary and secondary treatment system, where solids are separated from wastewater before further processing and discharge.
Built in Minneapolis
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