Alaska: drinking water & radon
Alaska has 406 active community water systems. Since 2016, 245 reported health-based violations; 3 had a latest lead result above 15 ppb; 4 measured PFOA or PFOS at or above 4 ppt.
Radon zones in Alaska
tap a countyMost health-based violations
| Kotzebue Mun. Water System 3,234 people | 72 |
| Kwethluk New Piped Water System 760 people | 61 |
| Kivalina Water System 452 people | 58 |
| Tatitlek Water System 95 people | 55 |
| Unalakleet City Water Supply 757 people | 51 |
| Hydaburg 415 people | 49 |
| Galena Wtp1 - City 490 people | 47 |
| Vallenar View Mobile Home Park 225 people | 46 |
| Grayling Water System 207 people | 43 |
| Kake Municipal Water 415 people | 42 |
Highest latest lead (90th percentile)
| Kotzebue Mun. Water System 3,234 people | 45 ppb |
| Valley Water Company 1,575 people | 23 ppb |
| Birchwood MHP 120 people | 20 ppb |
| College Park Home Owners Assoc 85 people | 15 ppb |
| Adak Utilities 325 people | 13 ppb |
| Violet Circle Water Company 35 people | 13 ppb |
| Bbahc - Kanakanak Hospital 305 people | 11 ppb |
| Wildrose Circle 30 people | 11 ppb |
| Chuathbaluk Water System 123 people | 10.2 ppb |
| Clarks Point Water System 128 people | 10.1 ppb |
Highest PFOA / PFOS
| Barrow Utilities & Elec. Coop., INC. (Bu 4,900 people | 46.3 ppt |
| Moa Municipality of Anchorage 221,351 people | 9.1 ppt |
| College Utilities Corporation 27,000 people | 6.4 ppt |
| Golden Heart Utilities 78,324 people | 5.4 ppt |
Largest systems
| Moa Municipality of Anchorage 221,351 people | 221,351 |
| Golden Heart Utilities 78,324 people | 78,324 |
| City and Borough of Juneau 38,526 people | 38,526 |
| Jber-Elmendorf 30,003 people | 30,003 |
| College Utilities Corporation 27,000 people | 27,000 |
| Doyon Utilities Jber - Richardson 20,284 people | 20,284 |
| Ft Wainwright - Main Post 20,076 people | 20,076 |
| Wasilla Water System 18,492 people | 18,492 |
| Eielson - Air Force Base 11,870 people | 11,870 |
| Kodiak Water System 9,547 people | 9,547 |
All ZIP codes in Alaska
272 ZIP codes.
What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.
Questions
How many water systems in Alaska have violations?
245 of 406 active community water systems in Alaska reported at least one health-based violation since 2016 (EPA SDWIS).
What is the radon risk in Alaska?
No ZIP codes are in EPA radon zone 1, 51 in zone 2 and 182 in zone 3. EPA recommends testing every home.