Drinking Water Systems in HANNIBAL, Missouri
2 water systems are reported for this city, with a combined service population of 24,770. The systems have 6 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving HANNIBAL
EPA Contaminant Categories in Historical Violation Records
Total Trihalomethanes (TTHMs)20 records
Revised Total Coliform Rule7 records
Long Term 2 Enhanced Surface Water Treatment Rule4 records
1,1,1-Trichloroethane2 records
1,1-Dichloroethylene2 records
Surface Water Treatment Rule2 records
Coliform (TCR)2 records
Benzene1 record
1,2-Dichloroethane1 record
Tetrachloroethylene (PCE)1 record
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.