Home/ Directory/ MT/ MILLER COLONY

Water system · PWSID MT0001649

MILLER COLONY

CHOTEAU, MT · ~84 people served

Check your exact address → CHOTEAU overview
100
Excellent
PurityRadar safety score

PWSID

MT0001649

State

Montana

City

CHOTEAU

Population served

84

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

74

Violations on record

0

Unaddressed

4

Health-based

81

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2021. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Dec 2020 Resolved
Treatment technique · EPA contaminant 0700 health-based began Jan 2016 Resolved
Monitoring & reporting · Lead & Copper Rule began Dec 2014 Resolved
Monitoring & reporting · EPA contaminant 0700 began Jun 2014 Resolved
Other · EPA contaminant 7000 began Jul 2013 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2012 Resolved
Monitoring & reporting · Uranium began Oct 2012 Resolved
Monitoring & reporting · Gross alpha began Oct 2012 Resolved
Monitoring & reporting · EPA contaminant 2035 began Apr 2012 Resolved
Monitoring & reporting · EPA contaminant 2010 began Apr 2012 Resolved
Monitoring & reporting · EPA contaminant 2031 began Apr 2012 Resolved
Monitoring & reporting · EPA contaminant 2041 began Apr 2012 Resolved

Recent enforcement actions

  • State action · SOX Jan 2021
  • State action · SIA Jan 2021
  • State action · SOX Mar 2016
  • State action · SIF Feb 2016
  • State action · SIE Feb 2016
  • State action · SIA Feb 2016
  • State action · SOX Feb 2015
  • State action · SIA Jan 2015

This profile is built from EPA public records for system MT0001649 — 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.