MONTANA STATE HOSPITAL COMPLEX

WARM SPRINGS, MT · ~721 people served

Check your exact address → WARM SPRINGS overview

100

Excellent

PurityRadar safety score

PWSID

MT0004805

State

Montana

City

WARM SPRINGS

Population served

721

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 Feb 2026. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2025 Unaddressed

Monitoring · Lead & Copper Rule began Aug 2025 Resolved

Monitoring & reporting · Lead & Copper Rule began Dec 2024 Resolved

Monitoring · Lead & Copper Rule began Dec 2024 Resolved

Monitoring · Lead & Copper Rule began Nov 2024 Resolved

Monitoring & reporting · Thallium began Jan 2024 Resolved

Monitoring & reporting · Arsenic began Jan 2023 Resolved

Monitoring & reporting · Lead & Copper Rule began Sep 2021 Resolved

Monitoring · Lead & Copper Rule began Aug 2021 Resolved

Recent enforcement actions

State action · SIF Feb 2026
State action · SIE Jan 2026
State action · SIA Jan 2026
State action · SOX Dec 2025
State action · SIA Oct 2025
State action · SIE Oct 2025
State action · SOX Oct 2025
State action · SOX Sep 2025

This profile is built from EPA public records for system MT0004805 — 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.