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Water system · PWSID MT0004419

SPRING TREE RIDGE

GREAT FALLS, MT · ~80 people served

Check your exact address → GREAT FALLS overview
100
Excellent
PurityRadar safety score

PWSID

MT0004419

State

Montana

City

GREAT FALLS

Population served

80

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

162

Violations on record

3

Unaddressed

14

Health-based

197

Enforcement actions

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

Other · EPA contaminant 7000 began Oct 2023 Unaddressed
Other · EPA contaminant 7000 began Jul 2023 Unaddressed
Other · EPA contaminant 7000 began Jul 2022 Unaddressed
Monitoring & reporting · Thallium began Jan 2025 Resolved
Monitoring & reporting · Arsenic began Jul 2024 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2022 Resolved
Other · EPA contaminant 7000 began Oct 2022 Resolved
Monitoring & reporting · EPA contaminant 3014 began Sep 2021 Resolved
Monitoring & reporting · Thallium began Jan 2021 Resolved
Other · EPA contaminant 7000 began Oct 2020 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2020 Resolved
Monitoring & reporting · Arsenic began Jan 2020 Resolved

Recent enforcement actions

  • State action · SOX Jan 2026
  • State action · SIA Jan 2026
  • State action · SIE Jan 2026
  • State action · SIA Oct 2024
  • State action · SIE Oct 2024
  • State action · SOX Jul 2024
  • State action · SIA Oct 2023
  • State action · SOX Aug 2023

This profile is built from EPA public records for system MT0004419 — 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.