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Water system · PWSID MT0002540

HIGH QUALITY H2O

MISSOULA, MT · ~200 people served

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

PWSID

MT0002540

State

Montana

City

MISSOULA

Population served

200

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

68

Violations on record

0

Unaddressed

4

Health-based

35

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2024. Official EPA record →

Treatment technique · EPA contaminant 0700 health-based began Oct 2022 Resolved
Max contaminant level (MCL) · Lead & Copper Rule health-based began Feb 2022 Resolved
Treatment technique · EPA contaminant 0700 health-based began Jul 2021 Resolved
Other · EPA contaminant 7000 began Jul 2005 Resolved
Monitoring & reporting · Cadmium began Jan 2002 Resolved
Monitoring & reporting · Chromium (total) began Jan 2002 Resolved
Monitoring & reporting · EPA contaminant 1085 began Jan 2002 Resolved
Monitoring & reporting · EPA contaminant 1036 began Jan 2002 Resolved
Monitoring & reporting · Barium began Jan 2002 Resolved
Monitoring & reporting · Beryllium began Jan 2002 Resolved
Monitoring & reporting · EPA contaminant 1075 began Jan 2002 Resolved
Monitoring & reporting · Selenium began Jan 2002 Resolved

Recent enforcement actions

  • State action · SOX Aug 2024
  • State action · SIA Oct 2022
  • State action · SIE Oct 2022
  • State action · SIA Oct 2022
  • State action · SOX Mar 2022
  • State action · SIF Feb 2022
  • State action · SIE Feb 2022
  • State action · SIA Feb 2022

This profile is built from EPA public records for system MT0002540 — 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.