Alaska County Water Quality Reports

Aleutians East County, AK: 10 Health Violations — 96/100

2026 report: Aleutians East County, AK scores 96/100 (Grade A). 5 ZIP codes analyzed. 186 EPA violations found. Free report with contaminant data and fi...

Aleutians West County, AK: 7 Health Violations — 73/100

2026 report: Aleutians West County, AK scores 73/100 (Grade B). 6 ZIP codes analyzed. 81 EPA violations found. Free report with contaminant data and fil...

Anchorage County, AK: 501 Health Violations — 69/100 (2026)

2026 report: Anchorage County, AK scores 69/100 (Grade C). 33 ZIP codes analyzed. 7338 EPA violations found. Free report with contaminant data and filte...

Bethel County, AK: 65 Health Violations — 82/100 (2026)

2026 report: Bethel County, AK scores 82/100 (Grade B). 27 ZIP codes analyzed. 1369 EPA violations found. Free report with contaminant data and filter p...

Bristol Bay County, AK: 1 Health Violation — 81/100 (2026)

2026 report: Bristol Bay County, AK scores 81/100 (Grade B). 3 ZIP codes analyzed. 17 EPA violations found. Free report with contaminant data and filter...

Chugach County, AK: Lead Above EPA Limits — 55/100 (2026)

2026 report: Chugach County, AK scores 55/100 (Grade C). 2 ZIP codes analyzed. 108 EPA violations found. Lead above EPA limits. Free report with contami...

Copper River County, AK: 1 Health Violation — 84/100 (2026)

2026 report: Copper River County, AK scores 84/100 (Grade B). 2 ZIP codes analyzed. 12 EPA violations found. Free report with contaminant data and filte...

Denali County, AK: 3 Violations — 57/100 (2026)

2026 report: Denali County, AK scores 57/100 (Grade C). 5 ZIP codes analyzed. 3 EPA violations found. Free report with contaminant data and filter picks.

Dillingham County, AK: 9 Health Violations — 79/100 (2026)

2026 report: Dillingham County, AK scores 79/100 (Grade B). 9 ZIP codes analyzed. 120 EPA violations found. Free report with contaminant data and filter...

Fairbanks North Star County, AK Water: 76/100 (2026)

2026 report: Fairbanks North Star County, AK scores 76/100 (Grade B). 15 ZIP codes analyzed. 165 EPA violations found. Free report with contaminant data...

Haines County, AK: 4 Health Violations — 94/100 (2026)

2026 report: Haines County, AK scores 94/100 (Grade A). 1 ZIP code analyzed. 32 EPA violations found. Free report with contaminant data and filter picks.

Hoonah-Angoon County, AK: 8 Health Violations — 73/100

2026 report: Hoonah-Angoon County, AK scores 73/100 (Grade B). 3 ZIP codes analyzed. 196 EPA violations found. Free report with contaminant data and fil...

Juneau County, AK: 6 Health Violations — 78/100 (2026)

2026 report: Juneau County, AK scores 78/100 (Grade B). 8 ZIP codes analyzed. 42 EPA violations found. Free report with contaminant data and filter picks.

Kenai Peninsula County, AK: 31 Health Violations — 67/100

2026 report: Kenai Peninsula County, AK scores 67/100 (Grade C). 13 ZIP codes analyzed. 255 EPA violations found. Free report with contaminant data and ...

Ketchikan Gateway County, AK: 8 Health Violations — 56/100

2026 report: Ketchikan Gateway County, AK scores 56/100 (Grade C). 6 ZIP codes analyzed. 80 EPA violations found. Free report with contaminant data and ...

Kodiak Island County, AK: 30 Health Violations — 89/100

2026 report: Kodiak Island County, AK scores 89/100 (Grade A). 8 ZIP codes analyzed. 155 EPA violations found. Free report with contaminant data and fil...

Kusilvak County, AK: 44 Health Violations — 76/100 (2026)

2026 report: Kusilvak County, AK scores 76/100 (Grade B). 11 ZIP codes analyzed. 636 EPA violations found. Free report with contaminant data and filter ...

Lake and Peninsula County, AK: 8 Health Violations — 66/100

2026 report: Lake and Peninsula County, AK scores 66/100 (Grade C). 11 ZIP codes analyzed. 256 EPA violations found. Free report with contaminant data a...

Matanuska-Susitna County, AK: 40 Health Violations — 73/100

2026 report: Matanuska-Susitna County, AK scores 73/100 (Grade B). 11 ZIP codes analyzed. 74 EPA violations found. Free report with contaminant data and...

Nome County, AK: PFAS Found in Water — 85/100 (2026)

2026 report: Nome County, AK scores 85/100 (Grade A). 14 ZIP codes analyzed. 590 EPA violations found. PFAS detected. Free report with contaminant data ...

North Slope County, AK: 1 Health Violation — 80/100 (2026)

2026 report: North Slope County, AK scores 80/100 (Grade B). 8 ZIP codes analyzed. 20 EPA violations found. Free report with contaminant data and filter...

Northwest Arctic County, AK: 136 Health Violations — 76/100

2026 report: Northwest Arctic County, AK scores 76/100 (Grade B). 12 ZIP codes analyzed. 475 EPA violations found. Free report with contaminant data and...

Prince of Wales-Hyder County, AK Water: 66/100 (2026)

2026 report: Prince of Wales-Hyder County, AK scores 66/100 (Grade C). 7 ZIP codes analyzed. 273 EPA violations found. Lead above EPA limits. Free repor...

Sitka County, AK: High Radon Risk — 64/100 (2026)

2026 report: Sitka County, AK scores 64/100 (Grade C). 1 ZIP code analyzed. No EPA violations. Free report with contaminant data and filter picks.

Skagway County, AK: 3 Violations — 87/100 (2026)

2026 report: Skagway County, AK scores 87/100 (Grade A). 1 ZIP code analyzed. 3 EPA violations found. Free report with contaminant data and filter picks.

Southeast Fairbanks County, AK: 1 Health Violation — 70/100

2026 report: Southeast Fairbanks County, AK scores 70/100 (Grade B). 8 ZIP codes analyzed. 55 EPA violations found. Free report with contaminant data an...

Valdez-Cordova County, AK: 6 Violations — 67/100 (2026)

2026 report: Valdez-Cordova County, AK scores 67/100 (Grade C). 4 ZIP codes analyzed. 6 EPA violations found. Free report with contaminant data and filt...

Wade Hampton County, AK: 14 Health Violations — 67/100

2026 report: Wade Hampton County, AK scores 67/100 (Grade C). 1 ZIP code analyzed. 74 EPA violations found. Free report with contaminant data and filter...

Wrangell County, AK: 3 Health Violations — 84/100 (2026)

2026 report: Wrangell County, AK scores 84/100 (Grade B). 1 ZIP code analyzed. 6 EPA violations found. Free report with contaminant data and filter picks.

Yakutat County, AK: 14 Violations — 81/100 (2026)

2026 report: Yakutat County, AK scores 81/100 (Grade B). 1 ZIP code analyzed. 14 EPA violations found. Free report with contaminant data and filter picks.

Yukon-Koyukuk County, AK: 66 Health Violations — 79/100

2026 report: Yukon-Koyukuk County, AK scores 79/100 (Grade B). 31 ZIP codes analyzed. 1360 EPA violations found. Free report with contaminant data and f...