Effective January 1, 2022, the Lead Service Line Replacement and Notification Act (LSLRNA) (Public Act 102-0613) replaced the former lead materials inventory requirements found in the Illinois Environmental Protection Act at 415 ILCS 5/17.11.  

The first purpose of the LSLRNA is to require owners and operators of community water supplies to develop, implement, and maintain a comprehensive water service line material inventory and replacement plan.  The lead service line replacement and notification requirements can be found at 415 ILCS 5/17.12.  A well-developed materials inventory will allow communities to be able to prioritize and strategize the replacement of known lead service lines within their water distribution system.

Inventory of Water Service Lines 

Additional Resources - https://www.gettheleadoutil.com/