Alaska tap water quality
408 active community water systems.
Largest water systems
| Grade | System | People | Health violations (5y) |
|---|
| C | Anchorage Water & Wastewater Utility (AWWU) | 221,351 | 0 |
| A | Golden Heart Utilities | 78,324 | 0 |
| A | City and Borough of Juneau | 38,526 | 0 |
| A | Jber-Elmendorf | 30,003 | 0 |
| A | College Utilities Corporation | 27,000 | 0 |
| A | Doyon Utilities Jber - Richardson | 20,284 | 0 |
| A | Ft Wainwright - Main Post | 20,076 | 0 |
| B | Wasilla Water System | 18,492 | 0 |
| C | Eielson - Air Force Base | 11,870 | 1 |
| A | Kodiak Water System | 9,547 | 0 |
| A | Sitka | 9,448 | 0 |
| A | Skagway | 9,411 | 0 |
| B | Unalaska Water System | 9,400 | 0 |
| A | Ketchikan Public Utilities | 8,937 | 0 |
| A | Palmer Water System | 8,111 | 0 |
| A | Homer Water System | 7,008 | 0 |
| B | University of Alaska - Fairbanks | 6,200 | 1 |
| A | Kenai Water System | 5,700 | 0 |
| D | Barrow Utilities & Elec. Coop., Inc. (Bu | 4,900 | 1 |
| A | Soldotna | 4,807 | 0 |
| A | Valdez Water System - Main | 4,500 | 0 |
| A | North Pole Utilities | 4,005 | 0 |
| A | Nome Joint Utility System | 3,920 | 0 |
| B | Seward | 3,324 | 1 |
| D | Kotzebue Mun. Water System | 3,234 | 40 |
| A | Petersburg | 3,218 | 0 |
| B | Uscg Station Kodiak | 3,092 | 0 |
| A | Unified Alaskan Utilities Settlers Bay | 2,733 | 0 |
| B | Cordova City Water | 2,700 | 0 |
| A | Girdwood Water System | 2,625 | 0 |
| C | Dillingham Water System | 2,419 | 1 |
| A | H2o 2u, Dba the Fill | 2,400 | 0 |
| D | Haines Borough | 2,376 | 7 |
| B | Wrangell | 2,300 | 1 |
| D | Bethel Heights Water System | 2,228 | 3 |
| A | Talkeetna Water System | 1,850 | 0 |
| C | Bethel-City S/D Water | 1,660 | 2 |
| A | Valley Utilities LLC | 1,590 | 0 |
| D | Metlakatla | 1,575 | 26 |
| D | Valley Water Company | 1,575 | 2 |
| B | Craig Public Works | 1,475 | 0 |
| A | Ow Dimond Estates Trailer Court | 1,395 | 0 |
| D | City of Hooper Bay | 1,375 | 3 |
| A | Ft. Greely - Main Post | 1,257 | 0 |
| B | Country Field Water Co. | 1,166 | 1 |
| B | Southwood Manor Tc | 1,005 | 1 |
| A | Anchor Point Safe Water Corporation | 1,000 | 0 |
| A | Penland Park MHP | 993 | 0 |
| C | Hoonah PWS | 980 | 2 |
| C | South Tongass Water Utility | 975 | 3 |
Most issues (systems serving 10,000+)
C1 health-based violation in the last 5 years; 10 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
CNo health-based violations in the last 5 years; 3 monitoring/reporting violations; PFOA/PFOS average above the 4 ppt federal limit: PFOA; Lead 90th percentile below the action level (2024).
BNo health-based violations in the last 5 years; 10 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2024).
ANo health-based violations in the last 5 years; 2 monitoring/reporting violations; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2024).
ANo health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
ANo health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
ANo health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
ANo health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
ANo health-based violations in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2025).
Cities
AdakAkhiokAkiachakAkiakAkutanAlakanukAllakaketAmblerAnaktuvuk PassAnchor PointAnchorageAndersonAngoonAnvikArctic VillageAtkaAtmautluakAtqasukAtqusakBarrowBeaverBethelBig LakeBrevig MissionBucklandCentralChalkyitsikChefornakChenega BayChevakChickenChignikChignik BayChignik LagoonChignik LakeChuathbalukChugiakCircleClarks PointClearCoffman CoveCold BayCopper CenterCordovaCraigCrooked CreekDeeringDelta JunctionDenali ParkDillinghamDouglasDutch HarborEagleEagle RiverEekEgegikEielsonEielson AfbElimElmendorf Air Force BaseEmmonakFairbanksFalse PassFort RichardsonFort WainwrightFort YukonGakonaGalenaGambellGirdwoodGlennallenGolovinGoodnews BayGraylingGulkanaHainesHoly CrossHomerHoonahHooper BayHopeHoustonHughesHusliaHydaburgIgiugigIliamnaJberJuneauKakeKaktovikKalskagKalskag Upper / LowerKaltagKarlukKasiglukKenaiKetchikanKianaKing CoveKing SalmonKipnukKivalinaKlawockKobukKodiakKokhanokKoliganekKongiganakKotlikKotzebueKoyukKoyukukKwethlukKwigillingokLarsen BayLittle DiomedeLower KalskagManley Hot SpringsManokotakMarshallMc GrathMcGrathMekoryukMentastaMetlakatlaMeyers ChuckMintoMountain VillageNaknekNanwalekNapakiakNapaskiakNelson LagoonNenanaNew StuyahokNewhalenNewtokNightmuteNikiskiNikolaevskNikolskiNoatakNomeNondaltonNoorvikNorth PoleNorthwayNuiqsutNulatoNunam IquaNunapitchukOld HarborOuzinkiePalmerPelicanPerryvillePetersburgPilot StationPitkas PointPlatinumPoint BakerPoint HopePoint LayPort AlexanderPort GrahamPort LionsPt. HopePt. LayQuinhagakRampartRubyRussian MissionSaint GeorgeSaint George IslandSaint Mary'sSaint MarysSaint MichaelSaint PaulSaint Paul IslandSalchaSand PointSavoongaSaxmanScammon BaySelawikSeldoviaSewardShagelukShaktoolikShishmarefShungnakSitkaSkagwaySleetmuteSoldotnaSouth NaknekStebbinsSterlingStevens VillageSuttonTakotnaTalkeetnaTanacrossTananaTatitlekTellerTetlinThorne BayTogiakTokToksook BayTrapper CreekTuluksakTuntutuliakTununakTwin HillsTwo RiversTyonekUnalakleetUnalaskaValdezVenetieVoznesenkaWainwrightWalesWard CoveWasillaWhite MountainWhittierWillowWrangellYakutat