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Water system · PWSID MT0000362

WILSALL WATER DISTRICT

100
Excellent
PurityRadar safety score

PWSID

MT0000362

State

Montana

City

WILSALL

Population served

250

Primary source

GU

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

53

Violations on record

0

Unaddressed

4

Health-based

98

Enforcement actions

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

Treatment technique · EPA contaminant 0200 health-based began Oct 2025 Resolved
Monitoring & reporting · EPA contaminant 0200 began Sep 2025 Resolved
Treatment technique · EPA contaminant 0200 health-based began Sep 2025 Resolved
Monitoring & reporting · EPA contaminant 0200 began Aug 2025 Resolved
Treatment technique · EPA contaminant 0200 health-based began Oct 2019 Addressed
Max contaminant level (MCL) · Thallium health-based began Apr 2018 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2013 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2013 Resolved
Monitoring & reporting · EPA contaminant 1094 began Jan 2011 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2011 Resolved
Other · EPA contaminant 7000 began Oct 2010 Resolved
Other · EPA contaminant 7000 began Jul 2010 Resolved

Recent enforcement actions

  • State action · SOX Nov 2025
  • State action · SIE Nov 2025
  • State action · SOX Nov 2025
  • State action · SOX Nov 2025
  • State action · SIA Nov 2025
  • State action · SIA Nov 2025
  • State action · SIE Nov 2025
  • State action · SIA Nov 2025

This profile is built from EPA public records for system MT0000362 — 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.