Arsenic in Illinois Drinking Water — 16 Violations
EPA data analysis for arsenic in Illinois drinking water systems
ZipCheckup tracks Arsenic in Illinois drinking water: 0 ZIP codes with detected levels on record. 16 ZIP codes exceed the EPA limit (10 ppb). Arsenic carries a high health-risk designation.
Arsenic Contamination in Illinois
ZipCheckup analyzed EPA enforcement records across 923 ZIP codes in Illinois. 16 ZIP codes have arsenic-related violations on record.
The violation rate for arsenic in Illinois is 1.7% of all ZIP codes — roughly in line with the national average.
EPA Standard for Arsenic
The EPA maximum contaminant level (MCL) for arsenic is 10 ppb, governed by the Arsenic Rule (2006). Water systems that exceed this limit must take corrective action and notify consumers.
Health Effects of Arsenic
Long-term exposure to arsenic in drinking water increases the risk of skin, bladder, lung, and kidney cancer. It also causes cardiovascular disease, diabetes, and skin lesions. The EPA classifies arsenic as a Group A human carcinogen.
How to Remove Arsenic From Drinking Water
The most effective treatment for arsenic removal is Reverse Osmosis. Look for filters certified under NSF 53 / NSF 58 standards.
Check Your ZIP Code
Use the ZipCheckup water quality search to see arsenic data for your specific water system in Illinois.
Cities with Arsenic Data in Illinois
6 cities in Illinois have arsenic testing data available.