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Water system · PWSID AK2210906

MOA MUNICIPALITY OF ANCHORAGE

ANCHORAGE, AK · ~221,351 people served

Check your exact address → ANCHORAGE overview
67
Fair
PurityRadar safety score

PWSID

AK2210906

State

Alaska

City

ANCHORAGE

Population served

221,351

Primary source

Surface water

Score history

▼ 33 points — the score moved from 100 to 67 on Jun 18, 2026, as newly published EPA data was incorporated.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 67

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

Latest detections from EPA’s UCMR5 monitoring (through Sep 2023). Levels in parts per trillion (ppt).

PFOA

Perfluorooctanoic acid

9.1 ppt

limit 4 ppt

Above EPA limit · 2.3×

PFHxS

Perfluorohexanesulfonic acid

3.5 ppt

limit 10 ppt

Below EPA limit

Violations & enforcement

419

Violations on record

0

Unaddressed

0

Health-based

114

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Apr 2025. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Jan 2025 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began May 2022 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began May 2022 Resolved
Monitoring & reporting · Bromate began Jan 2018 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Nov 2017 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Nov 2017 Resolved
Monitoring & reporting · Nitrate began Jan 2016 Resolved
Other · EPA contaminant 7000 began Jul 2011 Resolved
Monitoring & reporting · Uranium began Jan 2008 Resolved
Monitoring & reporting · Combined radium-226/228 began Jan 2008 Resolved
Monitoring & reporting · Uranium began Jan 2008 Resolved
Monitoring & reporting · Uranium began Jan 2008 Resolved

Recent enforcement actions

  • State action · SIB Apr 2025
  • State action · SOX Jan 2025
  • State action · SIB Apr 2024
  • State action · SIB Dec 2023
  • State action · SIB Dec 2023
  • State action · SIB Nov 2023
  • State action · SIB Aug 2023
  • State action · SIB Jun 2023

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Arsenic

1,242 stations · latest Apr 2025

0 · max 108 ug/L · 1,425

Nitrate

308 stations · latest Apr 2025

0.823 · max 26.5 mg/L · 368

Copper

6 stations · latest Jul 2022

6.37 · max 30.9 ug/L · 38

Manganese

3 stations · latest Sep 2022

6.7 · max 14.3 ug/L · 13

Lead

4 stations · latest Sep 2021

0.0728 · max 0.38 ug/L · 7

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system AK2210906 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.