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Clinton mayor details $135 million wastewater expansion that doubles treatment capacity
Summary
Mayor Scott Madison said Clinton's regional wastewater reclamation facility expansion, a $135 million multi-contract project begun in 2023, is about 99% complete and will double average treatment capacity while adding energy-efficiency features and an EPA class A biosolids dryer.
Mayor Scott Madison told attendees at Clinton's State of the City address that the city's regional wastewater reclamation facility (RWRF) expansion is nearing completion and will roughly double the plant's average treatment capacity.
"It basically doubles the size of what we had there, and it creates one of the most advanced and energy efficient wastewater treatment plants in the Midwest," Madison said, describing a project that includes anaerobic reactors, clarifiers, aeration basins, a UV disinfection system and full solids-handling upgrades. The mayor said construction began in 2023 and is now about 99% complete across five major contracts, with full system integration and flow from ADM expected by the end of the year.
Madison said the project represents roughly a $135,000,000 investment and will raise average flow capacity to about 11,600,000 gallons per day and peak capacity to roughly 26,000,000 gallons. He also highlighted the startup of a biosolids dryer that the city expects will produce EPA class A biosolids "a clean, reusable, and nutrient-rich product used for agriculture, landscaping, and soil restoration." The mayor framed the expansion as both an environmental and economic investment for Clinton, noting that the plant can now fully treat wastewater from Clinton, ADM, and some surrounding communities.
Taylor Cleppey, identified in the address as director involved with the plant, was named by Madison as leading operations during the transition. Madison said the city plans to explore a renewable natural gas system that would capture methane from the anaerobic reactors and convert biogas into pipeline-quality gas to support long-term environmental goals.
The mayor presented the RWRF project as a milestone in infrastructure investment and sustainability, and said the facility will enter full operations with system integration by year-end. No formal vote or council action was announced during the address; Madison invited follow-up questions after his remarks.
