Drinking Water Systems in DORENA, Oregon
1 water system are reported for this city, with a combined service population of 340. The systems have 20 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving DORENA
EPA Contaminant Categories in Historical Violation Records
Surface Water Treatment Rule30 records
Revised Total Coliform Rule11 records
Coliform (TCR)6 records
Interim Enhanced Surface Water Treatment Rule3 records
Lead and Copper Rule2 records
Public Notice2 records
Haloacetic Acids (HAA5)2 records
Nitrate1 record
Total Trihalomethanes (TTHMs)1 record
Consumer Confidence Rule1 record
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.