U.S. safety records, as the agencies wrote them. Independent.
Tap water

Alaska: drinking water systems

The 408 active community water systems in Alaska on EPA's record, serving 702,057 people (EPA's counts). Systems serving more than 500 people have their own page; find yours by name, city, county, ZIP code or PWS ID. EPA's file dated Oct. 23, 2026.

170

170 of 408 systems have a health-based violation on EPA's record since Oct. 23, 2023, serving 84,488 of the state's 702,057 people (12%); 76 are an EPA enforcement priority. EPA lists 51 as currently in violation (EPA's system file of Oct. 23, 2026).

Health-based violations, in EPA's words: “Violations of maximum contaminant levels (MCLs) or maximum residual disinfectant levels (MRDLs), which specify the highest concentrations of contaminants or disinfectants, respectively, allowed in drinking water; or of treatment technique (TT) rules, which specify required processes intended to reduce the amounts of contaminants in drinking water. MCLs, MRDLs, and treatment technique rules are all health-based drinking water standards.”

Find your water system

    Health-based violations since Oct. 23, 2023, by contaminant or rule

    Groundwater Rule196Surface Water Treatment Rule154Total Haloacetic Acids (HAA5)152TTHM78LEAD AND COPPER RULE REVISIONS57Interim Enhanced Surface Water Treatment Rule54Revised Total Coliform Rule36CARBON, TOTAL28

    Cities and counties EPA lists, A to Z

    The cities EPA lists as served by each system, with the number of systems that list each; a system for which EPA lists no city is under its county.

    ANCHORAGE 45BARROW 2BETHEL 4FAIRBANKS 17KETCHIKAN 7KODIAK 2PALMER 31SEWARD 4VALDEZ 4WASILLA 46
    Water systems with a page of their own, A to Z (98)

    From EPA's Safe Drinking Water Information System (SDWIS), through EPA ECHO's drinking water system download. Health-based violations from EPA Envirofacts, downloaded Nov. 2, 2026. EPA's file dated Oct. 23, 2026. EPA: “All compliance and enforcement data displayed on ECHO are current as of the last official quarterly refresh of the source data system, SDWIS, which may lag by three to six months.” These are records of violations, not a test of your tap water today: your water system's annual Consumer Confidence Report has its test results. Names and values are shown as EPA writes them. EPA ECHO drinking water search.