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Water system · PWSID MT0000463

BIG TIMBER CITY OF

BIG TIMBER, MT · ~1,650 people served

Check your exact address → BIG TIMBER overview
100
Excellent
PurityRadar safety score

PWSID

MT0000463

State

Montana

City

BIG TIMBER

Population served

1,650

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

37

Violations on record

0

Unaddressed

2

Health-based

30

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2019. Official EPA record →

Treatment technique · EPA contaminant 0200 health-based began Oct 2014 Resolved
Other · EPA contaminant 7000 began Jul 2013 Resolved
Treatment technique · Lead & Copper Rule health-based began Dec 2009 Resolved
Other · EPA contaminant 7000 began Jul 2006 Resolved
Monitoring & reporting · Thallium began Jan 2005 Resolved
Monitoring & reporting · Thallium began Jan 2004 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 2003 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2003 Resolved
Monitoring & reporting · EPA contaminant 2010 began Jan 2002 Resolved
Monitoring & reporting · EPA contaminant 2036 began Jan 2002 Resolved
Monitoring & reporting · EPA contaminant 2005 began Jan 2002 Resolved
Monitoring & reporting · EPA contaminant 2035 began Jan 2002 Resolved

Recent enforcement actions

  • State action · SOX Dec 2019
  • State action · SFL Jun 2015
  • State action · SIF Nov 2014
  • State action · SO8 Oct 2014
  • State action · SIE Oct 2014
  • State action · SIA Oct 2014
  • State action · SOX Jul 2013
  • State action · SIA Jul 2013

This profile is built from EPA public records for system MT0000463 — 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.