BIG MOUNTAIN WATER COMPANY

WHITEFISH, MT · ~2,435 people served

Check your exact address → WHITEFISH overview

100

Excellent

PurityRadar safety score

PWSID

MT0000060

State

Montana

City

WHITEFISH

Population served

2,435

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

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

165

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2026. Official EPA record →

Monitoring & reporting · EPA contaminant 2041 began Jan 2024 Resolved

Monitoring & reporting · EPA contaminant 2031 began Jan 2024 Resolved

Monitoring & reporting · EPA contaminant 2036 began Jan 2024 Resolved

Monitoring & reporting · EPA contaminant 2040 began Jan 2024 Resolved

Monitoring & reporting · EPA contaminant 2015 began Jan 2024 Resolved

Monitoring & reporting · EPA contaminant 2020 began Jan 2024 Resolved

Monitoring & reporting · EPA contaminant 2005 began Jan 2024 Resolved

Monitoring & reporting · EPA contaminant 2035 began Jan 2024 Resolved

Monitoring & reporting · EPA contaminant 2039 began Jan 2024 Resolved

Monitoring & reporting · EPA contaminant 2037 began Jan 2024 Resolved

Monitoring & reporting · EPA contaminant 2010 began Jan 2024 Resolved

Monitoring & reporting · EPA contaminant 2042 began Jan 2024 Resolved

Recent enforcement actions

State action · SIE Jan 2026
State action · SIA Jan 2026
State action · SOX Aug 2025
State action · SIF Nov 2014
State action · SOX Nov 2014
State action · SIE Oct 2014
State action · SIA Oct 2014
State action · SIA Oct 2014

This profile is built from EPA public records for system MT0000060 — 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.