Drinking Water Systems in JEFFERSON, Oregon
2 water systems are reported for this city, with a combined service population of 3,413. The systems have 11 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving JEFFERSON
EPA Contaminant Categories in Historical Violation Records
Coliform (TCR)13 records
Surface Water Treatment Rule8 records
COLIPHAGE6 records
Consumer Confidence Rule5 records
Nitrate3 records
Benzene3 records
Arsenic2 records
trans-1,2-Dichloroethylene2 records
1,1,2-Trichloroethane2 records
Toluene2 records
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.