WHITEFISH CITY OF

WHITEFISH, MT · ~10,418 people served

Check your exact address → WHITEFISH overview

100

Excellent

PurityRadar safety score

PWSID

MT0000357

State

Montana

City

WHITEFISH

Population served

10,418

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2009. Official EPA record →

Monitoring & reporting · Arsenic began Jan 2005 Resolved

Monitoring & reporting · EPA contaminant 1036 began Jan 2005 Resolved

Monitoring & reporting · EPA contaminant 1075 began Jan 2005 Resolved

Monitoring & reporting · EPA contaminant 1085 began Jan 2005 Resolved

Monitoring & reporting · Beryllium began Jan 2005 Resolved

Max contaminant level (MCL) · Total coliform health-based began Sep 2004 Resolved

Monitoring & reporting · EPA contaminant 2982 began Jan 1997 Resolved

Monitoring & reporting · EPA contaminant 2968 began Jan 1997 Resolved

Monitoring & reporting · EPA contaminant 2969 began Jan 1997 Resolved

Monitoring & reporting · EPA contaminant 2987 began Jan 1997 Resolved

Monitoring & reporting · EPA contaminant 2985 began Jan 1997 Resolved

Monitoring & reporting · EPA contaminant 2991 began Jan 1997 Resolved

Recent enforcement actions

State action · SOX May 2009
State action · SOX May 2009
EPA/federal action · EOX Feb 2009
State action · SOX Dec 2008
State action · SOX Mar 2006
State action · SIA Feb 2006
State action · SIE Feb 2006
State action · SIA Feb 2006

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 station · latest Sep 2023

0.0003 · max 0.0003 mg/L · 1

Fluoride

1 station · latest Sep 2023

0.033 · max 0.033 mg/L · 1

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 MT0000357 — 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.