Mayor Tom Hundley and Public Works Director Ryan Hayden said Addison will consolidate its wastewater treatment plants and launch a multi-year modernization project to meet a regulatory phosphorus-removal deadline in 2030.

The consolidation plan, based on two independent studies and described on Addison Community Television's Year in Review, calls for moving operations from the AJL facility to a single upgraded North wastewater treatment plant. Village officials estimated the project's cost at about $171 million and said construction work would run roughly from 2026 to 2030.

Hayden said officials considered upgrading both existing plants but determined one consolidated plant would be more fiscally responsible. The plan includes installing a force main from the AJL facility to the North plant, upgrading the North plant for new processes and capacity, building a pumping station at the AJL site and decommissioning the AJL facility.

Hayden also described a separate sewer-separation project in the Home Edition subdivision that began in May. That work, funded in part with American Rescue Plan Act dollars, separates combined sewers into independent storm and sanitary systems, will oversize the new storm sewer to reduce flooding, and includes lead service-line replacements required by the Illinois EPA. The village estimates the sewer-separation work will finish in 2026 and the engineering and construction cost at roughly $13 million.

Village officials said they had secured just under $4 million in grants for public works in 2025 ' about $3 million directed to the sewer-separation work and just under $1 million for other water and sewer infrastructure. Hayden said those grants reduce the burden on residents but do not cover the full consolidation cost.

Mayor Hundley and Hayden acknowledged the financial strain of a $171 million program and warned of rising costs if implementation is delayed. Hundley said the village has been setting aside funds and adjusting user fees in anticipation of the mandate. "If you wait three or four years," Hundley said on the program, "construction prices could be double that." Hayden noted that the village will face an unfunded regulatory requirement if the work is not started by 2030.

Officials said next steps include final design work and permitting; construction is planned to begin in spring 2026. There were no formal votes recorded on the broadcast segment; Hayden and Hundley framed the discussion as planning and budgeting for a legally driven infrastructure obligation.