Drinking Water Systems in DIAGONAL, Iowa
1 water system are reported for this city, with a combined service population of 338. The systems have 6 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving DIAGONAL
EPA Contaminant Categories in Historical Violation Records
Nitrite3 records
Coliform (TCR)3 records
Total Trihalomethanes (TTHMs)2 records
Haloacetic Acids (HAA5)2 records
Public Notice2 records
Revised Total Coliform Rule2 records
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.