Drinking Water Systems in OTTAWA, Ohio
1 water system are reported for this city, with a combined service population of 4,393. The systems have 5 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving OTTAWA
EPA Contaminant Categories in Historical Violation Records
Total Trihalomethanes (TTHMs)14 records
Consumer Confidence Rule8 records
Benzene6 records
1,1,1-Trichloroethane5 records
CHLOROBENZENE5 records
Carbon tetrachloride5 records
Tetrachloroethylene (PCE)5 records
Vinyl Chloride5 records
Trichloroethylene (TCE)5 records
1,2-Dichloropropane5 records
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.