Drinking Water Systems in ST. JOHNS, Arizona
1 water system are reported for this city, with a combined service population of 540. The systems have 6 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving ST. JOHNS
EPA Contaminant Categories in Historical Violation Records
Coliform (TCR)7 records
Benzene5 records
Consumer Confidence Rule5 records
1,2-Dichloropropane4 records
Nitrate4 records
Toluene4 records
Tetrachloroethylene4 records
Heptachlor epoxide3 records
Barium3 records
Dalapon3 records
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.