State drinking water records
Alaska drinking water systems
407 community water systems serve Alaska and are listed below under 27 counties and on the pages of 217 cities and towns. Their own population figures add up to 702,746 people, a sum that counts people twice where one system sells water to another.
250 of them (61%) had at least one health-based violation in the last 10 years. 141 systems still have one unresolved.
289 rely mainly on groundwater and 118 on surface water, counting water bought from other systems.
348 systems filed a lead service line inventory listing 0 lead lines, 16 galvanized lines that must be replaced and 25,867 lines of unknown material.
107 systems are placed by the county their records name: EPA has no service area map for 89 of them, and 18 have one that does not line up with their own records.
- Community water systems
- 407
- People served, sum of each system's own figure
- 702,746
- Systems with a health-based violation, last 10 years
- 250
- Systems with one unresolved
- 141
- Lead service lines in inventories
- 0
Counties
27 countiesEach county counts the systems whose service area map reaches it. Systems placed only by a mailing address are listed on the county pages but not counted here.
Largest systems
| System | Main county | People served | Main source | Health-based violations, 10 years | Unresolved | Lead lines |
|---|---|---|---|---|---|---|
| Moa Municipality of Anchorage | Anchorage Municipality | 221,351 | Surface water | 0 | 0 | 0 |
| Golden Heart Utilities | Fairbanks North Star Borough | 78,324 | Groundwater | 0 | 0 | 0 |
| City and Borough of Juneau | Juneau City and Borough | 38,526 | Surface water | 0 | 0 | 0 |
| Jber-Elmendorf | Anchorage Municipality | 30,003 | Purchased surface water | 0 | 0 | 0 |
| College Utilities Corporation | Fairbanks North Star Borough | 27,000 | Purchased groundwater | 0 | 0 | 0 |
| Doyon Utilities Jber - Richardson | Anchorage Municipality | 20,284 | Surface water | 0 | 0 | 0 |
| Ft Wainwright - Main Post | Fairbanks North Star Borough | 20,076 | Groundwater | 0 | 0 | 0 |
| Wasilla Water System | Matanuska-Susitna Borough | 18,492 | Groundwater | 0 | 0 | 0 |
| Eielson - Air Force Base | Fairbanks North Star Borough | 11,870 | Groundwater | 1 | 0 | 0 |
| Skagway | Skagway Municipality | 10,947 | Groundwater | 2 | 0 | 0 |
| Kodiak Water System | Kodiak Island Borough | 9,547 | Surface water | 0 | 0 | No inventory |
| Sitka | Sitka City and Borough | 9,448 | Surface water | 3 | 0 | 0 |
| Unalaska Water System | Aleutians West Census Area | 9,400 | Surface water | 0 | 0 | 0 |
| Ketchikan Public Utilities | Ketchikan Gateway Borough | 8,937 | Surface water | 2 | 0 | 0 |
| Palmer Water System | Matanuska-Susitna Borough | 8,111 | Groundwater | 0 | 0 | 0 |
Systems with unresolved health-based violations
141 systemsThe 100 with the most unresolved violations are listed. The county pages list the other 41.
| System | Main county | People served | Main source | Health-based violations, 10 years | Unresolved | Lead lines |
|---|---|---|---|---|---|---|
| Snowcrest View South | Anchorage Municipality | 25 | Groundwater | 2 | 11 | No inventory |
| Mountain Village Water System | Kusilvak Census Area | 850 | Groundwater | 12 | 8 | 0 |
| Chignik Lake Water System | Lake and Peninsula Borough | 200 | Groundwater | 5 | 7 | 0 |
| Bluff View Acres Water System | Matanuska-Susitna Borough | 100 | Groundwater | 19 | 7 | 0 |
| Metlakatla | Ketchikan Gateway Borough | 1,575 | Surface water | 31 | 6 | 0 |
| Forest Park TC | Anchorage Municipality | 175 | Groundwater | 6 | 6 | No inventory |
| Allakaket Public Water System | Yukon-Koyukuk Census Area | 135 | Groundwater | 4 | 6 | 0 |
| Tanacross Water System | Southeast Fairbanks Census Area | 108 | Groundwater | 2 | 6 | 0 |
| Alaska H2O Inc | Matanuska-Susitna Borough | 75 | Groundwater | 2 | 6 | No inventory |
| Cozy Northern Homes, LLC | Fairbanks North Star Borough | 38 | Groundwater | 7 | 6 | No inventory |
| Emmonak Water System | Kusilvak Census Area | 820 | Surface water | 24 | 5 | No inventory |
| Grayling Water System | Yukon-Koyukuk Census Area | 207 | Surface water | 43 | 5 | 0 |
| Eagle Log Wellhouse | Southeast Fairbanks Census Area | 192 | Groundwater | 2 | 5 | 0 |
| Hughes Public Water Supply | Yukon-Koyukuk Census Area | 107 | Groundwater under direct influence | 3 | 5 | 0 |
| White Birch Apartments | Fairbanks North Star Borough | 72 | Groundwater | 1 | 5 | No inventory |
| Saint George Water System | Aleutians West Census Area | 65 | Groundwater | 1 | 5 | 0 |
| Larrys Apartments | Southeast Fairbanks Census Area | 44 | Groundwater | 6 | 5 | 0 |
| Sterling Moose River Manor | Kenai Peninsula Borough | 33 | Groundwater | 2 | 5 | No inventory |
| Stevens Village Water System | Yukon-Koyukuk Census Area | 28 | Groundwater | 2 | 5 | 0 |
| Valley Water Company | Fairbanks North Star Borough | 1,575 | Groundwater | 4 | 4 | No inventory |
| City of Hooper Bay | Kusilvak Census Area | 1,200 | Groundwater | 6 | 4 | 0 |
| Selawik Safewater Facility | Northwest Arctic Borough | 846 | Surface water | 37 | 4 | 0 |
| Alakanuk Water System | Kusilvak Census Area | 570 | Surface water | 7 | 4 | 0 |
| St. Marys Water System | Kusilvak Census Area | 548 | Surface water | 6 | 4 | 0 |
| Galena WTP1 - City | Yukon-Koyukuk Census Area | 490 | Groundwater | 46 | 4 | 0 |
| Hydaburg | Ketchikan Gateway Borough | 415 | Surface water | 43 | 4 | 0 |
| Chignik Bay Water System | Lake and Peninsula Borough | 199 | Surface water | 16 | 4 | 0 |
| Golovin Community Water System | Nome Census Area | 150 | Surface water | 8 | 4 | 0 |
| Salmon Creek Trailer Court | Kenai Peninsula Borough | 125 | Groundwater | 1 | 4 | No inventory |
| Wildwood Homes LLC | Fairbanks North Star Borough | 114 | Groundwater | 4 | 4 | No inventory |
| Rainbow Valley MHP | Fairbanks North Star Borough | 105 | Groundwater | 6 | 4 | 0 |
| Anvik Water System | Yukon-Koyukuk Census Area | 96 | Groundwater | 3 | 4 | 0 |
| Rampart Washeteria | Yukon-Koyukuk Census Area | 88 | Groundwater | 6 | 4 | 0 |
| Peters Creek Terrace | Anchorage Municipality | 70 | Groundwater | 3 | 4 | No inventory |
| Aleutian Estates #1 | Matanuska-Susitna Borough | 63 | Groundwater | 4 | 4 | 0 |
| Bay View Trailer Court | Kenai Peninsula Borough | 51 | Groundwater | 2 | 4 | No inventory |
| Akiachak Water System | Bethel Census Area | 627 | Groundwater | 1 | 3 | 0 |
| New Stuyahok Water System | Dillingham Census Area | 566 | Groundwater | 15 | 3 | 0 |
| Salcha Community Watering Point | Fairbanks North Star Borough | 508 | Groundwater | 1 | 3 | No inventory |
| Manokotak Water System | Dillingham Census Area | 293 | Groundwater | 12 | 3 | 0 |
| Galena WTP2 - Gila | Yukon-Koyukuk Census Area | 290 | Groundwater | 0 | 3 | 0 |
| Nanwalek | Kenai Peninsula Borough | 281 | Surface water | 5 | 3 | 0 |
| Holy Cross Water System | Yukon-Koyukuk Census Area | 182 | Groundwater | 1 | 3 | 0 |
| Northern Lights Terrace | Matanuska-Susitna Borough | 168 | Groundwater | 1 | 3 | 0 |
| Hillside Park S/D | Anchorage Municipality | 144 | Groundwater | 3 | 3 | 0 |
| Chilkat Indian Village | Haines Borough | 113 | Groundwater under direct influence | 1 | 3 | 0 |
| Tezdlende Estates and Watering Point | Copper River Census Area | 75 | Groundwater | 2 | 3 | 0 |
| Takotna Water System | Yukon-Koyukuk Census Area | 70 | Surface water | 0 | 3 | 0 |
| South Naknek Water System | Bristol Bay Borough | 66 | Groundwater | 1 | 3 | 0 |
| Kingsberry Homeowners Assoc. | Anchorage Municipality | 50 | Groundwater | 1 | 3 | No inventory |
| Greatland Village Park | Kenai Peninsula Borough | 30 | Groundwater | 0 | 3 | 0 |
| Seward | Kenai Peninsula Borough | 3,324 | Groundwater | 1 | 2 | No inventory |
| Savoonga Water Supply | Nome Census Area | 802 | Groundwater | 2 | 2 | 0 |
| Gambell Water System | Nome Census Area | 669 | Groundwater under direct influence | 7 | 2 | 0 |
| Ft. Yukon Public Water System | Yukon-Koyukuk Census Area | 665 | Groundwater under direct influence | 0 | 2 | No inventory |
| Toksook Bay Water System | Bethel Census Area | 661 | Groundwater | 0 | 2 | 0 |
| Buckland Water System | Northwest Arctic Borough | 600 | Surface water | 29 | 2 | 0 |
| Pilot Station Water System | Kusilvak Census Area | 580 | Groundwater | 4 | 2 | 0 |
| Seward Marine Industrial Cent | Kenai Peninsula Borough | 545 | Groundwater | 1 | 2 | No inventory |
| Chefornak Water System | Bethel Census Area | 513 | Groundwater | 3 | 2 | 0 |
| Angoon Public Water | Skagway Municipality | 450 | Surface water | 13 | 2 | No inventory |
| LKSD Tununak Paul Albert HS | Bethel Census Area | 385 | Groundwater under direct influence | 6 | 2 | 0 |
| Marshall Water System | Kusilvak Census Area | 308 | Groundwater | 3 | 2 | No inventory |
| Lower Kalskag Water System | Bethel Census Area | 302 | Groundwater | 9 | 2 | 0 |
| Nightmute New Watering Point | Bethel Census Area | 243 | Groundwater | 11 | 2 | 0 |
| Arctic Village Water System | Yukon-Koyukuk Census Area | 175 | Surface water | 7 | 2 | 0 |
| View Pointe at the Ranch | Matanuska-Susitna Borough | 155 | Groundwater | 0 | 2 | 0 |
| Willowbrook North | Kenai Peninsula Borough | 150 | Groundwater | 1 | 2 | No inventory |
| Chuathbaluk Water System | Bethel Census Area | 123 | Groundwater | 1 | 2 | 0 |
| Elsinore Estates Subdivision | Matanuska-Susitna Borough | 120 | Groundwater | 1 | 2 | No inventory |
| Highland Pride Mobile Home Park | Kenai Peninsula Borough | 100 | Groundwater | 2 | 2 | 0 |
| College Park Home Owners Assoc | Kenai Peninsula Borough | 85 | Groundwater | 5 | 2 | No inventory |
| Diomede Joint Utilities | Nome Census Area | 83 | Surface water | 34 | 2 | 0 |
| Settlers Bay Condos | Matanuska-Susitna Borough | 80 | Groundwater | 1 | 2 | No inventory |
| Nelson Park | Fairbanks North Star Borough | 80 | Groundwater | 1 | 2 | No inventory |
| Platinum City Water System | Bethel Census Area | 51 | Groundwater under direct influence | 1 | 2 | 0 |
| Snowshoe Acres LLC | Matanuska-Susitna Borough | 32 | Groundwater | 2 | 2 | No inventory |
| Uscg Station Kodiak | Kodiak Island Borough | 3,092 | Surface water | 8 | 1 | No inventory |
| Dillingham Water System | Dillingham Census Area | 2,419 | Groundwater | 2 | 1 | 0 |
| Bethel Heights Water System | Bethel Census Area | 2,228 | Groundwater | 7 | 1 | 0 |
| Anchor Point Safe Water Corporation | Kenai Peninsula Borough | 1,000 | Groundwater | 1 | 1 | 0 |
| Chevak Water System | Kusilvak Census Area | 938 | Groundwater | 2 | 1 | No inventory |
| Pioneer Wells at Fox | Fairbanks North Star Borough | 880 | Groundwater | 0 | 1 | 0 |
| Kwethluk New Piped Water System | Bethel Census Area | 760 | Surface water | 61 | 1 | 0 |
| Noorvik Water System | Northwest Arctic Borough | 735 | Surface water | 4 | 1 | 0 |
| The Water Service | North Slope Borough | 638 | Purchased surface water | 0 | 1 | No inventory |
| Kotlik Water System | Kusilvak Census Area | 617 | Surface water | 9 | 1 | 0 |
| Nunapitchuk Water System | Bethel Census Area | 496 | Groundwater | 4 | 1 | 0 |
| St. Michael Water System | Nome Census Area | 495 | Surface water | 2 | 1 | 0 |
| Egegik | Lake and Peninsula Borough | 485 | Groundwater | 2 | 1 | 0 |
| Noatak Community Water System | Northwest Arctic Borough | 485 | Groundwater under direct influence | 0 | 1 | 0 |
| City of Thorne Bay | Ketchikan Gateway Borough | 470 | Surface water | 30 | 1 | 0 |
| Meadow Brook Subdivision | Matanuska-Susitna Borough | 465 | Groundwater | 13 | 1 | 0 |
| Kiana Water System | Northwest Arctic Borough | 455 | Groundwater | 4 | 1 | 0 |
| Saint Paul Water System | Aleutians West Census Area | 380 | Groundwater | 7 | 1 | No inventory |
| Glennallen Water Works | Copper River Census Area | 365 | Groundwater | 3 | 1 | No inventory |
| Russian Mission Water System | Kusilvak Census Area | 340 | Groundwater | 3 | 1 | 0 |
| Elim Water Supply | Nome Census Area | 320 | Surface water | 7 | 1 | 0 |
| Atmautluak Water System | Bethel Census Area | 311 | Groundwater | 10 | 1 | 0 |
| Moonlight Water Delivery | Nome Census Area | 300 | Purchased groundwater | 0 | 1 | No inventory |
Counties come from the counties EPA lists each system serving, matched to 2024 Census counties; where EPA lists none, from the county coded in the system's ID, its service area map, or its mailing address. A county holding at least a fifth of a system's service area map is added when at least a fifth of that map lies in those counties. Towns are the ones EPA lists and the Census places such a map covers, always inside those counties. In New England, where EPA's town names a whole Town, it is not matched to the village of the same name. A system is not listed in a county holding less than a fifth of its map, or in a county or town its map reaches when the map lies mostly outside the counties EPA lists, so a page can leave out a system that serves part of the area. Methodology and limitations