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Water system · PWSID MT0003792

OVERLOOK SUBDIVISION

POLSON, MT · ~49 people served

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

PWSID

MT0003792

State

Montana

City

POLSON

Population served

49

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

33

Violations on record

0

Unaddressed

2

Health-based

60

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Oct 2023. Official EPA record →

Other · EPA contaminant 7000 began Oct 2023 Resolved
Monitoring · Lead & Copper Rule began Jun 2020 Resolved
Other · EPA contaminant 7000 began Jul 2019 Resolved
Other · EPA contaminant 7000 began Jul 2018 Resolved
Other · EPA contaminant 7000 began Jul 2017 Resolved
Max contaminant level (MCL) · Lead & Copper Rule health-based began Jul 2016 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 2014 Resolved
Monitoring & reporting · EPA contaminant 3014 began Aug 2010 Resolved
Monitoring & reporting · Thallium began Jan 2000 Resolved
Other · EPA contaminant 7000 began Oct 1999 Resolved
Monitoring & reporting · Total coliform began Oct 1999 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 1999 Resolved

Recent enforcement actions

  • State action · SOX Oct 2023
  • State action · SIA Oct 2023
  • State action · SOX Jul 2020
  • State action · SIA Jul 2020
  • State action · SIE Jul 2020
  • State action · SOX Aug 2019
  • State action · SIA Jul 2019
  • State action · SOX Sep 2018

This profile is built from EPA public records for system MT0003792 — 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.