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Water system · PWSID MT0004698

WOODS BAY WATER AND SEWER DISTRICT

BIGFORK, MT · ~685 people served

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

PWSID

MT0004698

State

Montana

City

BIGFORK

Population served

685

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

10

Health-based

68

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 2015. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Oct 2015 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2015 Resolved
Max contaminant level (MCL) · Total coliform health-based began Feb 2015 Resolved
Other · EPA contaminant 7000 began Jul 2013 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2011 Resolved
Monitoring & reporting · EPA contaminant 3014 began Sep 2011 Resolved
Monitoring & reporting · EPA contaminant 3014 began Sep 2011 Resolved
Monitoring & reporting · EPA contaminant 3014 began Sep 2011 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2011 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2010 Resolved

Recent enforcement actions

  • State action · SOX Nov 2015
  • State action · SOX Nov 2015
  • State action · SIA Oct 2015
  • State action · SIA Oct 2015
  • State action · SIE Oct 2015
  • State action · SIF Sep 2015
  • State action · SIA Aug 2015
  • State action · SIE Aug 2015

This profile is built from EPA public records for system MT0004698 — 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.