Drinking Water Systems in ONARGA, Illinois
1 water system are reported for this city, with a combined service population of 1,409. The systems have 4 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving ONARGA
EPA Contaminant Categories in Historical Violation Records
Lead and Copper Rule2 records
Public Notice2 records
Gross Alpha1 record
Chlorine1 record
Revised Total Coliform Rule1 record
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.