PFAS above a 2024 limit
MCL1of 3 cities
Cities whose system reported a PFAS above its federal limit.
PFOS in Alaska →State water report
Alaska Water Quality: 3 Cities Ranked by the Records
Water quality across 3 cities in Alaska, drawn from EPA drinking-water records. Each city page shows the measured contaminants and a reproducible Purity Score.
Finding by finding
What Alaska's records show
Counts of cities whose serving system reported each result. There is no statewide score: PurityMap does not average local records into a statewide safety verdict.
Lead detected
Action level1of 3 cities
90th-percentile lead above zero.
Lead across Alaska →Lead above action level
Action level0of 3 cities
No city on record above 15 µg/L.
How lead is measured →City rankings
Alaska cities ranked by the records
Highest first. A summary of each serving system’s record, not a safety verdict.
Highest 90th-percentile result first. The tick marks the 15 µg/L action level.
See all 3 in the table
3 cities, highest Purity Score first
- CITY AND BOROUGH OF JUNEAU · PWSID AK2110342 · Purity Score 100/100 (Excellent) · Confidence: moderate · Assessed at the water-system levelNo PFAS detectedNot detected
- WASILLA WATER SYSTEM · PWSID AK2224646 · Purity Score 89/100 (Good) · Confidence: moderate · Assessed at the water-system levelPFAS detected below EPA limits; lead 3.1 µg/LDetected
- MOA MUNICIPALITY OF ANCHORAGE · PWSID AK2210906 · Purity Score 57/100 (Fair) · Confidence: moderate · Assessed at the water-system levelPFOA 9.1 ng/L, 2× the EPA limit (+1 more PFAS above)Above reference
End of list.
Ranked by the Purity Score of each city's main water system, highest first. Scores belong to water systems; there is no state score. The score is computed only from contaminants measured in the published EPA record, so this ranks the record, not which city's water is safest. How the score works. See how Alaska compares with other states.
By contaminant
lead in Alaska
Lead
Action level90th-percentile result, by city.
- Wasilla3.1 µg/L
| 15 µg/L action level · none above
Counties
2 counties with city reportsAlaska counties
- Juneau City and Borough1 city
- Matanuska-Susitna Borough1 city
Suppliers
Largest water systems
- MOA MUNICIPALITY OF ANCHORAGEMoa Municipality Anchorage · AK2210906 · 221,351 served
- CITY AND BOROUGH OF JUNEAUJuneau · AK2110342 · 38,526 served
- WASILLA WATER SYSTEMWasilla · AK2224646 · 18,492 served
Full indexAll 3 Alaska city reports, A–Z
Next step
State patterns can’t tell you what reaches your tap.
Learn
Learn your supplier
Resolve your address to the one public water system that serves it.
Find my water →Test
Test your own tap
Plumbing inside a building can add lead and change what reaches your glass.
How to test →Solve
Treat by concern
Only after a city report names a finding, match a treatment certified for it.
Treatment options →Questions
Alaska water, frequently asked
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How does Alaska tap water compare across cities?
PurityMap ranks 3 cities in Alaska by the Purity Score of each city's main water system, computed only from contaminants measured in the published EPA record. Scores belong to water systems, not to cities. The highest published score is Juneau's main water system: CITY AND BOROUGH OF JUNEAU · PWSID AK2110342 · Purity Score 100 (Excellent) · Confidence: moderate · Assessed at the water-system level. The ranking compares the records, not which city's water is safest, and your own tap can differ with household plumbing.
How many Alaska cities have PFAS above the federal limit?
1 city of 3 had at least one regulated PFAS (PFOA, PFOS or PFHxS) measured above the 2024 federal limit in EPA's UCMR 5 testing, including Moa Municipality Anchorage (PFOA 9.1 ng/L). PFAS were detected at any level in 2.
Is there lead in Alaska tap water?
Utilities report lead as a 90th-percentile result from home taps. 1 of 3 Alaska cities reported a value above zero, and none was above the 15 µg/L federal action level. Lead usually comes from a building's own pipes and fixtures, so only a test at your tap tells you what you drink.
Limits, sources and corrections
A statewide page cannot tell you what reaches a specific address. Water quality varies by supplier, sampling period and household plumbing; open a city report for the evidence behind a local result.
Sources: EPA UCMR 5 (PFAS, 2024), SDWIS Lead and Copper Rule 90th-percentile results and health-based violations, and utility Consumer Confidence Reports where on file. Every city report links its dated source records.
Updated 2026-09-16. How PurityMap analyzes water data · Report an error