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Water system · PWSID MT0000176

CIRCLE TOWN OF

CIRCLE, MT · ~644 people served

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

PWSID

MT0000176

State

Montana

City

CIRCLE

Population served

644

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

18

Violations on record

0

Unaddressed

0

Health-based

51

Enforcement actions

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

Monitoring & reporting · Lead & Copper Rule began Oct 2024 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2024 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2024 Resolved
Monitoring & reporting · Fluoride began Jan 2023 Resolved
Monitoring · Lead & Copper Rule began Mar 2020 Resolved
Other · EPA contaminant 7000 began Jul 2017 Resolved
Monitoring & reporting · Lead & Copper Rule began Dec 2015 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2015 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2015 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2014 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2014 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jul 2014 Resolved

Recent enforcement actions

  • State action · SOX Feb 2026
  • State action · SIE Jan 2026
  • State action · SIA Jan 2026
  • State action · SOX Aug 2025
  • State action · SIA Jan 2025
  • State action · SOX Jan 2025
  • State action · SIE Jan 2025
  • State action · SIE Nov 2024

This profile is built from EPA public records for system MT0000176 — 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.