PONDERA COLONY WATER SYSTEMS

VALIER, MT · ~112 people served

Check your exact address → VALIER overview

100

Excellent

PurityRadar safety score

PWSID

MT0003744

State

Montana

City

VALIER

Population served

112

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 Sep 2022. Official EPA record →

Monitoring & reporting · Total trihalomethanes (TTHM) began Oct 2018 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Oct 2018 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 2014 Resolved

Other · EPA contaminant 7000 began Jul 2011 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2001 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 1999 Resolved

Monitoring & reporting · Total coliform began Oct 1998 Resolved

Monitoring & reporting · Total coliform began Dec 1997 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 1997 Resolved

Monitoring & reporting · Total coliform began Jun 1995 Resolved

Monitoring & reporting · Total coliform began Jul 1994 Resolved

Recent enforcement actions

State action · SOX Sep 2022
State action · SIE Oct 2021
State action · SIA Oct 2021
State action · SOX Jan 2014
State action · SIA Jan 2014
State action · SOX Aug 2011
State action · SIA Aug 2011
State action · SIE Aug 2011

This profile is built from EPA public records for system MT0003744 — 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.