Drinking Water Systems in UMATILLA, Oregon
2 water systems are reported for this city, with a combined service population of 8,326. The systems have 34 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving UMATILLA
EPA Contaminant Categories in Historical Violation Records
Coliform (TCR)45 records
Consumer Confidence Rule9 records
Revised Total Coliform Rule7 records
Nitrate5 records
Benzene4 records
Total Trihalomethanes (TTHMs)2 records
Endothall2 records
Hexachlorocyclopentadiene2 records
Atrazine2 records
2,4-D2 records
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.