PONDERILLA HILLS LAKE COUNTY WATER SEWER

POLSON, MT · ~35 people served

Check your exact address → POLSON overview

100

Excellent

PurityRadar safety score

PWSID

MT0003103

State

Montana

City

POLSON

Population served

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 Nov 2023. Official EPA record →

Other · EPA contaminant 7000 began Oct 2023 Resolved

Monitoring · Lead & Copper Rule began Jun 2020 Resolved

Monitoring & reporting · EPA contaminant 3014 began Nov 2012 Resolved

Monitoring & reporting · EPA contaminant 3014 began Oct 2012 Resolved

Max contaminant level (MCL) · Total coliform health-based began Nov 2009 Resolved

Monitoring & reporting · Thallium began Jan 2008 Resolved

Max contaminant level (MCL) · Total coliform health-based began Aug 2004 Resolved

Max contaminant level (MCL) · Total coliform health-based began Dec 2003 Resolved

Max contaminant level (MCL) · Total coliform health-based began Nov 2003 Resolved

Max contaminant level (MCL) · Total coliform health-based began Oct 2003 Resolved

Recent enforcement actions

State action · SOX Nov 2023
State action · SIA Oct 2023
State action · SOX Jul 2020
State action · SIA Jul 2020
State action · SIE Jul 2020
State action · SOX Feb 2013
State action · SIE Dec 2012
State action · SIA Dec 2012

This profile is built from EPA public records for system MT0003103 — 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.