MUSSELSHELL COMMUNITY COUNTY WSD

MUSSELSHELL, MT · ~75 people served

Check your exact address → MUSSELSHELL overview

100

Excellent

PurityRadar safety score

PWSID

MT0000296

State

Montana

City

MUSSELSHELL

Population served

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 Jul 2020. Official EPA record →

Other · EPA contaminant 7000 began Jul 2020 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 2013 Resolved

Other · EPA contaminant 7000 began Oct 2010 Resolved

Other · EPA contaminant 7000 began Jul 2008 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2007 Resolved

Other · EPA contaminant 7000 began Jul 2006 Resolved

Monitoring & reporting · EPA contaminant 2039 began Jan 2006 Resolved

Monitoring & reporting · Thallium began Jan 2006 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2004 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jun 2004 Resolved

Other · EPA contaminant 7000 began Jul 2002 Resolved

Monitoring & reporting · Total coliform began Feb 1997 Resolved

Recent enforcement actions

State action · SOX Jul 2020
State action · SIA Jul 2020
State action · SOX Jan 2013
State action · SIA Jan 2013
State action · SIA Oct 2010
State action · SIE Oct 2010
State action · SOX Oct 2010
State action · SOX Jun 2009

This profile is built from EPA public records for system MT0000296 — 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.