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Water system · PWSID MT0000198

MONTANA STATE PRISON

DEER LODGE, MT · ~2,100 people served

Check your exact address → DEER LODGE overview
100
Excellent
PurityRadar safety score

PWSID

MT0000198

State

Montana

City

DEER LODGE

Population served

2,100

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

114

Violations on record

0

Unaddressed

2

Health-based

75

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Feb 2026. Official EPA record →

Other · EPA contaminant 7000 began Oct 2025 Resolved
Monitoring · Lead & Copper Rule began Aug 2025 Resolved
Other · EPA contaminant 7000 began Jul 2025 Resolved
Monitoring & reporting · Thallium began Jan 2025 Resolved
Monitoring & reporting · Lead & Copper Rule began Dec 2024 Resolved
Monitoring & reporting · EPA contaminant 3014 began Nov 2024 Resolved
Monitoring · Lead & Copper Rule began Nov 2024 Resolved
Monitoring & reporting · EPA contaminant 2005 began Jan 2023 Resolved
Monitoring & reporting · EPA contaminant 2010 began Jan 2023 Resolved
Monitoring & reporting · EPA contaminant 2015 began Jan 2023 Resolved
Monitoring & reporting · EPA contaminant 2020 began Jan 2023 Resolved
Monitoring & reporting · EPA contaminant 2031 began Jan 2023 Resolved

Recent enforcement actions

  • State action · SOX Feb 2026
  • State action · SOX Feb 2026
  • State action · SOX Feb 2026
  • State action · SOX Feb 2026
  • State action · SOX Feb 2026
  • State action · SOX Feb 2026
  • State action · SOX Feb 2026
  • State action · SOX Feb 2026

This profile is built from EPA public records for system MT0000198 — 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.