AQUIFER PROTECTION ACT
Summary
This Illinois bill prohibits data centers from using water from the Mahomet Aquifer starting January 1, 2027, and requires existing data centers to switch to alternative water sources by January 1, 2028. It bars state agencies from issuing permits for aquifer groundwater withdrawal by data centers and prevents local governments from keeping data center water use information confidential through nondisclosure agreements. The bill establishes penalties for violations and grants the Illinois Environmental Protection Agency authority to create implementing rules.
Sponsor
Last action
Added as Co-Sponsor Sen. Sue Rezin
May 30, 2026
Topics
Legislative history
Added as Co-Sponsor Sen. Darby A. Hills
Added as Co-Sponsor Sen. Sue Rezin
Added as Chief Co-Sponsor Sen. Sally J. Turner
Added as Co-Sponsor Sen. Terri Bryant
Added as Co-Sponsor Sen. Chris Balkema
Rule 3-9(a) / Re-referred to Assignments
Senate Committee Amendment No. 1 Rule 3-9(a) / Re-referred to Assignments
Rule 2-10 Committee/3rd Reading Deadline Established As May 22, 2026
Senate Committee Amendment No. 1 Assignments Refers to Executive
Senate Committee Amendment No. 1 To AI and Social Media
Senate Committee Amendment No. 1 Filed with Secretary by Sen. Chapin Rose
Senate Committee Amendment No. 1 Referred to Assignments
Rule 2-10 Committee/3rd Reading Deadline Established As May 15, 2026
Rule 2-10 Committee Deadline Established As April 24, 2026
Rule 2-10 Committee Deadline Established As March 27, 2026
To AI and Social Media
Assigned to Executive
Filed with Secretary by Sen. Chapin Rose
First Reading
Referred to Assignments