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Water system · PWSID MT0000529

JOHNSONS MOBILE HOME PARK

LIBBY, MT · ~35 people served

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

PWSID

MT0000529

State

Montana

City

LIBBY

Population served

35

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

15

Violations on record

0

Unaddressed

1

Health-based

46

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Feb 2025. Official EPA record →

Monitoring & reporting · Thallium began Jan 2024 Resolved
Monitoring & reporting · EPA contaminant 3014 began Dec 2019 Resolved
Monitoring · Lead & Copper Rule began Jun 2019 Resolved
Other · Lead & Copper Rule began Apr 2016 Resolved
Monitoring & reporting · Total coliform began Sep 2012 Resolved
Other · EPA contaminant 7000 began Jul 2008 Resolved
Monitoring & reporting · Gross alpha began Jan 2008 Resolved
Monitoring & reporting · Uranium began Jan 2008 Resolved
Other · EPA contaminant 7000 began Jul 2006 Resolved
Monitoring & reporting · Total coliform began Apr 2005 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2004 Resolved
Monitoring & reporting · Total coliform began Dec 2003 Resolved

Recent enforcement actions

  • State action · SIF Feb 2025
  • State action · SOX Jan 2025
  • State action · SIA Jan 2025
  • State action · SIE Jan 2025
  • State action · SOX Dec 2019
  • State action · SIA Dec 2019
  • State action · SIE Dec 2019
  • State action · SOX Dec 2019

This profile is built from EPA public records for system MT0000529 — 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.