Cyanide in Illinois Drinking Water
37 public water systems in Illinois have historical EPA violation records associated with cyanide in the Q2 2026 snapshot.
52
Historical Records in Illinois
37
Systems With Records
About Cyanide
- EPA Limit
- 200 ppb
- Category
- Inorganic
- Health Effects
- Nerve damage, thyroid problems
- Common Treatment Approaches
- Reverse osmosis, ion exchange
These counts describe historical compliance records, not present concentrations or household test results. Confirm current conditions with the utility's latest Consumer Confidence Report.