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Water system · PWSID AK2260309

UNALASKA WATER SYSTEM

UNALASKA, AK · ~9,400 people served

Check your exact address → UNALASKA overview
100
Excellent
PurityRadar safety score

PWSID

AK2260309

State

Alaska

City

UNALASKA

Population served

9,400

Primary source

Surface water

Score history

No change since tracking began Jun 18, 2026.

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

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

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

233

Violations on record

0

Unaddressed

3

Health-based

138

Enforcement actions

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

Monitoring · Lead & Copper Rule began May 2024 Resolved
Monitoring & reporting · EPA contaminant 0200 began May 2024 Resolved
Monitoring & reporting · EPA contaminant 0999 began May 2024 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2024 Resolved
Monitoring & reporting · Nitrate began Jan 2024 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2024 Resolved
Monitoring & reporting · Bromate began Oct 2023 Resolved
Monitoring & reporting · Bromate began Jul 2023 Resolved
Monitoring & reporting · EPA contaminant 0200 began May 2022 Resolved
Monitoring · Lead & Copper Rule began May 2022 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2022 Resolved
Monitoring · Lead & Copper Rule began Nov 2021 Resolved

Recent enforcement actions

  • State action · SIB Dec 2025
  • State action · SIB Nov 2025
  • State action · SIB Jul 2025
  • State action · SIB Jun 2025
  • State action · SIB May 2025
  • State action · SOX Apr 2025
  • State action · SOX Dec 2024
  • State action · SIB Sep 2024

This profile is built from EPA public records for system AK2260309 — 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.