BRIDGER BASE WATER SYSTEM

BELGRADE, MT · ~75 people served

Check your exact address → BELGRADE overview

100

Excellent

PurityRadar safety score

PWSID

MT0004931

State

Montana

City

BELGRADE

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 Jan 2019. Official EPA record →

Monitoring & reporting · EPA contaminant 3014 began Sep 2018 Resolved

Monitoring & reporting · EPA contaminant 2040 began Oct 2017 Resolved

Monitoring & reporting · EPA contaminant 2051 began Oct 2017 Resolved

Monitoring & reporting · EPA contaminant 2042 began Oct 2017 Resolved

Monitoring & reporting · EPA contaminant 2046 began Oct 2017 Resolved

Monitoring & reporting · EPA contaminant 2050 began Oct 2017 Resolved

Monitoring & reporting · EPA contaminant 2041 began Oct 2017 Resolved

Monitoring & reporting · EPA contaminant 2065 began Oct 2017 Resolved

Monitoring & reporting · EPA contaminant 2067 began Oct 2017 Resolved

Monitoring & reporting · Chlorite began Oct 2017 Resolved

Monitoring & reporting · EPA contaminant 2005 began Oct 2017 Resolved

Monitoring & reporting · EPA contaminant 2039 began Oct 2017 Resolved

Recent enforcement actions

State action · SOX Jan 2019
State action · SIE Oct 2018
State action · SIA Oct 2018
State action · SIF Feb 2018
State action · SOX Feb 2018
State action · SIA Jan 2018
State action · SIE Jan 2018
State action · SIF Sep 2017

This profile is built from EPA public records for system MT0004931 — 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.