EL MAR ESTATES MSLA CO WATER

MISSOULA, MT · ~1,350 people served

Check your exact address → MISSOULA overview

100

Excellent

PurityRadar safety score

PWSID

MT0000517

State

Montana

City

MISSOULA

Population served

1,350

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2009. Official EPA record →

Monitoring & reporting · Total coliform began Aug 2005 Resolved

Monitoring & reporting · EPA contaminant 2039 began Apr 2005 Resolved

Monitoring & reporting · Total coliform began Apr 2001 Resolved

Monitoring & reporting · Thallium began Jan 2000 Resolved

Monitoring & reporting · Total coliform began Feb 1999 Resolved

Monitoring & reporting · Nitrate began Jan 1999 Resolved

Recent enforcement actions

State action · SOX May 2009
State action · SOX Jan 2009
State action · SOX Mar 2006
State action · SOX Feb 2006
State action · SIE Feb 2006
State action · SIA Feb 2006
State action · SIE Sep 2005
State action · SIA Sep 2005

This profile is built from EPA public records for system MT0000517 — 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.