State
Alaska: drinking water records
EPA lists 408 community water systems serving homes in Alaska. 28 took part in EPA's national PFAS survey (UCMR 5), and 9 found at least one PFAS above the level laboratories can measure.
Data as of EPA UCMR 5 final release, August 2026 (file dated Aug 28, 2026) · EPA SDWIS 2026Q2 (file dated Jul 9, 2026). How we build these pages
PFAS in EPA’s final survey
9 of the 28 Alaska systems in EPA’s national PFAS survey found at least one PFAS, and 2 had a PFOA or PFOS yearly average at or above EPA’s limit. See Alaska’s PFAS results by system and compound.
Counties
- Aleutians East Borough 6 systems
- Aleutians West Census Area 6 systems
- Anchorage Municipality 69 systems
- Bethel Census Area 34 systems
- Bristol Bay Borough 2 systems
- Chugach Census Area 0 systems
- Copper River Census Area 0 systems
- Denali Borough 2 systems
- Dillingham Census Area 11 systems
- Fairbanks North Star Borough 24 systems
- Haines Borough 2 systems
- Hoonah-Angoon Census Area 0 systems
- Juneau City and Borough 2 systems
- Kenai Peninsula Borough 27 systems
- Ketchikan Gateway Borough 14 systems
- Kodiak Island Borough 8 systems
- Kusilvak Census Area 0 systems
- Lake and Peninsula Borough 9 systems
- Matanuska-Susitna Borough 80 systems
- Nome Census Area 17 systems
- North Slope Borough 9 systems
- Northwest Arctic Borough 11 systems
- Petersburg Borough 0 systems
- Prince of Wales-Hyder Census Area 0 systems
- Sitka City and Borough 2 systems
- Skagway Municipality 4 systems
- Southeast Fairbanks Census Area 8 systems
- Wrangell City and Borough 3 systems
- Yakutat City and Borough 1 systems
- Yukon-Koyukuk Census Area 27 systems
ZIP reports
Sources
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Database prepared 2026-09-03.