Drinking Water Systems in COLUMBUS, Ohio

17 water systems are reported for this city, with a combined service population of 1,338,157. The systems have 34 EPA violation records in the five-year period ending June 30, 2026.

Water Systems Serving COLUMBUS

EPA Contaminant Categories in Historical Violation Records

Coliform (TCR)92 records
Consumer Confidence Rule55 records
Benzene32 records
Lead and Copper Rule32 records
Nitrate26 records
Simazine18 records
Atrazine18 records
Total Trihalomethanes (TTHMs)17 records
2,4,5-TP16 records
2,4-D15 records

Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.