Drinking Water Systems in YONCALLA, Oregon
1 water system are reported for this city, with a combined service population of 1,050. The systems have 17 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving YONCALLA
EPA Contaminant Categories in Historical Violation Records
Surface Water Treatment Rule82 records
Interim Enhanced Surface Water Treatment Rule21 records
Coliform (TCR)7 records
Vinyl Chloride4 records
Trichloroethylene (TCE)4 records
Vinyl chloride4 records
1,1-Dichloroethylene4 records
1,2-Dichloroethane4 records
1,1,1-Trichloroethane4 records
1,2-Dichloropropane4 records
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.