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Water system · PWSID MT0004542

GREAT BEAR ESTATES

COLUMBIA FALLS, MT · ~32 people served

Check your exact address → COLUMBIA FALLS overview
100
Excellent
PurityRadar safety score

PWSID

MT0004542

State

Montana

City

COLUMBIA FALLS

Population served

32

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

32

Violations on record

0

Unaddressed

1

Health-based

21

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2022. Official EPA record →

Other · EPA contaminant 7000 began Jul 2022 Resolved
Other · Lead & Copper Rule began Apr 2016 Resolved
Monitoring & reporting · Total coliform began Mar 2013 Resolved
Monitoring & reporting · EPA contaminant 2036 began Jan 2012 Resolved
Monitoring & reporting · EPA contaminant 2040 began Jan 2012 Resolved
Monitoring & reporting · EPA contaminant 2041 began Jan 2012 Resolved
Monitoring & reporting · EPA contaminant 2039 began Jan 2012 Resolved
Monitoring & reporting · EPA contaminant 2043 began Jan 2012 Resolved
Monitoring & reporting · EPA contaminant 2044 began Jan 2012 Resolved
Monitoring & reporting · Uranium began Jan 2012 Resolved
Monitoring & reporting · EPA contaminant 2046 began Jan 2012 Resolved
Monitoring & reporting · EPA contaminant 2042 began Jan 2012 Resolved

Recent enforcement actions

  • State action · SOX Jul 2022
  • State action · SIA Jul 2022
  • State action · SOX Jan 2017
  • State action · SIE Jan 2017
  • State action · SIA Jan 2017
  • State action · SIA Apr 2013
  • State action · SIE Apr 2013
  • State action · SOX Mar 2013

This profile is built from EPA public records for system MT0004542 — 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.