PWSID
MT0001079
State
Montana
City
MISSOULA
Population served
53
Primary source
Groundwater
Score history
No change since tracking began Jun 18, 2026.
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
88
Violations on record
0
Unaddressed
0
Health-based
62
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Jul 2021. Official EPA record →
Recent enforcement actions
- State action · SOX Jul 2021
- State action · SIF Mar 2020
- State action · SIA Jan 2020
- State action · SIE Jan 2020
- State action · SIA Feb 2017
- State action · SIE Feb 2017
- State action · SIE Feb 2017
- State action · SIA Feb 2017
This profile is built from EPA public records for system MT0001079 — 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.