Illinois Lead Service Line Replacement and Notification Act
Illinois State law requires all water systems to develop and maintain service line inventories. Water systems must submit inventories to the IL Environmental Protection agency and be made publicly available on the IL EPA website. 415 ILCS 5/17.12 §17.12 (a). This law also prioritizes replacements for high-risk facilities, such as preschools, child care facilities, parks, playgrounds, hospitals, and clinics, and high-risk areas identified by the community water supply. 20 ILCS 605 §605-870(c).