Overview

• Aurora’s tests of 100 homes from January through June found more than 10% of samples above the 15 parts-per-billion action level, prompting mandatory public notifications and a review of corrosion control treatments.
• Illinois American Water Co. issued a citywide drinking water notice in Peoria after 14 of 103 samples exceeded federal lead limits and is reviewing its corrosion control measures.
• Elgin’s routine monitoring identified elevated lead in 48 of 100 high-risk buildings, triggering a $150 million, multi-year lead service line replacement plan and the distribution of free filters.
• Under the EPA’s late-2024 Lead and Copper Rule revisions, utilities now sample both the first and fifth liters at taps, uncovering additional lead leached from corroding service lines.
• All three suburbs are offering certified filters, public education on flushing protocols and accelerated service line removals to reduce exposure risks for children and pregnant women.