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Water system · PWSID MT0000021

BAKER CITY OF

BAKER, MT · ~1,858 people served

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

PWSID

MT0000021

State

Montana

City

BAKER

Population served

1,858

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

136

Violations on record

0

Unaddressed

1

Health-based

132

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Oct 2025. Official EPA record →

Other · EPA contaminant 7000 began Oct 2025 Resolved
Monitoring · Lead & Copper Rule began Jul 2025 Resolved
Monitoring & reporting · Lead & Copper Rule began Dec 2024 Resolved
Monitoring & reporting · EPA contaminant 2041 began Jul 2022 Resolved
Monitoring & reporting · EPA contaminant 2039 began Jul 2022 Resolved
Monitoring & reporting · EPA contaminant 2040 began Jul 2022 Resolved
Monitoring & reporting · EPA contaminant 2035 began Jul 2022 Resolved
Monitoring & reporting · EPA contaminant 2010 began Jul 2022 Resolved
Monitoring & reporting · EPA contaminant 2020 began Jul 2022 Resolved
Monitoring & reporting · EPA contaminant 2031 began Jul 2022 Resolved
Monitoring & reporting · EPA contaminant 2037 began Jul 2022 Resolved
Monitoring & reporting · EPA contaminant 2005 began Jul 2022 Resolved

Recent enforcement actions

  • State action · SIA Oct 2025
  • State action · SOX Oct 2025
  • State action · SIF Aug 2025
  • State action · SIA Aug 2025
  • State action · SOX Aug 2025
  • State action · SIE Aug 2025
  • State action · SOX Feb 2025
  • State action · SIA Feb 2025

This profile is built from EPA public records for system MT0000021 — 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.