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FAIRBANKS, AK · ~20,076 people served

Check your exact address → FAIRBANKS overview

100

Excellent

PurityRadar safety score

PWSID

AK2310918

State

Alaska

City

FAIRBANKS

Population served

20,076

Primary source

Groundwater

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

Latest detections from EPA’s UCMR5 monitoring (through Apr 2025). Levels in parts per trillion (ppt).

PFHxS

Perfluorohexanesulfonic acid

4 ppt

limit 10 ppt

Below EPA limit

Violations & enforcement

344

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2023. Official EPA record →

Max contaminant level (MCL) · EPA contaminant 2964 health-based began Jan 2012 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2011 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2011 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Apr 2011 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Apr 2011 Resolved

Other · EPA contaminant 7000 began Jul 2007 Resolved

Other · EPA contaminant 7000 began Jul 2006 Resolved

Monitoring & reporting · Total coliform began Jun 2004 Resolved

Monitoring & reporting · EPA contaminant 0999 began Apr 2004 Resolved

Recent enforcement actions

State action · SIB Jul 2023
State action · SIB Oct 2020
State action · SIB Jul 2019
State action · SIB Sep 2017
State action · SIF Aug 2016
State action · SIB Apr 2016
State action · SIA Aug 2014
State action · SIF Nov 2013

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

Fluoride

11 stations · latest Oct 2020

11.4 · max 39.5 mg/L · 13

Nitrate

11 stations · latest Oct 2020

19.6 · max 319 micron · 13

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 AK2310918 — 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.