Drinking Water Systems in KOYUK, Alaska
1 water system are reported for this city, with a combined service population of 277. The systems have 60 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving KOYUK
EPA Contaminant Categories in Historical Violation Records
Surface Water Treatment Rule80 records
Coliform (TCR)20 records
Revised Total Coliform Rule17 records
Chlorine16 records
Interim Enhanced Surface Water Treatment Rule14 records
Benzene13 records
Tetrachloroethylene (PCE)9 records
CHLOROBENZENE9 records
Toluene9 records
Tetrachloroethylene9 records
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.