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Water system · PWSID MT0000634

WESTANA MOBILE MANOR HAMILTON

BILLINGS, MT · ~90 people served

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

PWSID

MT0000634

State

Montana

City

BILLINGS

Population served

90

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

35

Violations on record

0

Unaddressed

7

Health-based

51

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 2012. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Oct 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2009 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2009 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2009 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2009 Resolved
Other · EPA contaminant 7000 began Jul 2006 Resolved
Monitoring & reporting · Thallium began Jan 2006 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2004 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2002 Resolved
Monitoring & reporting · EPA contaminant 2955 began Jan 2002 Resolved
Monitoring & reporting · EPA contaminant 2977 began Jan 2002 Resolved
Monitoring & reporting · EPA contaminant 2380 began Jan 2002 Resolved

Recent enforcement actions

  • State action · SOX Nov 2012
  • State action · SIF Nov 2012
  • State action · SIA Oct 2012
  • State action · SIA Oct 2012
  • State action · SIE Oct 2012
  • State action · SOX Jul 2010
  • State action · SIF Jan 2010
  • State action · SIF Jan 2010

This profile is built from EPA public records for system MT0000634 — 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.