The DuPage Water Commission has secured an additional $500,000 in federal funding to advance a massive $6 billion initiative to build an independent Lake Michigan water supply system, according to the Daily Herald. The project aims to reshape regional water infrastructure and potentially shift control of utility supplies away from the city of Chicago over the coming decades.
U.S. Rep. Sean Casten presented the $500,000 check during a ceremony at the commission’s Elmhurst office, as reported by the Daily Herald. Rep. Raja Krishnamoorthi. Both federal awards originate from the Community Project Funding program, aimed at bolstering regional infrastructure resilience and drinking water safety.
The Scope of the Lake Michigan Regional Water Supply Initiative
Planning for the 15-year Lake Michigan Regional Water Supply Initiative began in 2023 through a partnership between the DuPage Water Commission and the Northwest Suburban Municipal Joint Action Water Agency, according to the Daily Herald. The Northwest agency provides water to Streamwood, Schaumburg, Rolling Meadows, Elk Grove Village, Hanover Park, Hoffman Estates, and Mount Prospect, as noted by the Daily Herald.
The proposed infrastructure project involves several major engineering components across Cook and DuPage counties. As detailed by the Daily Herald, preliminary plans feature a raw water intake and tunnel offshore near Glencoe, a water treatment facility in Northbrook situated on a former golf course purchased by the commission in 2024, and purified transmission lines running south around the west side of O’Hare International Airport to the commission’s headquarters in Elmhurst.
Infrastructure Motivations and Chicago Contract Timeline
The DuPage Water Commission currently obtains approximately 26.8 billion gallons of water annually from Chicago under a contract signed in 1984 that expires in 2041, according to the Daily Herald. That water is treated at the James Jardine Water Treatment Plant near Navy Pier, which the Daily Herald notes is believed to be the largest water treatment plant in the world.
DuPage Water Commission board Chair Jim Zay cited reliability concerns and a lack of local infrastructure investment under the current arrangement as key drivers for the new system, telling the Daily Herald that system glitches occurred due to power issues in March and earlier in the summer. Commission General Manager Paul May added that the new purification system will utilize updated technology to address emerging contaminants such as microplastics, PFAS, and lead, aligning with statements from U.S. Rep. Raja Krishnamoorthi reported by the Daily Herald.
City Response and Regulatory Hurdles
City officials have expressed skepticism regarding the massive suburban undertaking. A spokesperson for Chicago Mayor Brandon Johnson emphasized that the Department of Water Management has supplied high-quality drinking water to the commission since 1983, stating that any shift away from the existing arrangement would require state legislation, an extensive permitting process, and public capital subsidies.
Project leaders project completion by 2041, coinciding with the expiration of the current Chicago supply contract. Beyond serving more than 30 communities, the independent infrastructure is designed to provide dual redundancy, allowing the commission and the Northwest agency to back each other up during local emergencies.