NEW CASTLE COURT

MISSOULA, MT · ~55 people served

Check your exact address → MISSOULA overview

100

Excellent

PurityRadar safety score

PWSID

MT0004322

State

Montana

City

MISSOULA

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 Mar 2025. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Dec 2024 Resolved

Monitoring & reporting · Lead & Copper Rule began Apr 2015 Resolved

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

Max contaminant level (MCL) · Total coliform health-based began Apr 2006 Resolved

Monitoring & reporting · Total coliform began Dec 2003 Resolved

Recent enforcement actions

State action · SOX Mar 2025
State action · SIA Feb 2025
State action · SOX Apr 2015
State action · SIA Apr 2015
State action · SOX Apr 2015
State action · SIA Jul 2014
State action · SIE Jul 2014
State action · SOX Feb 2010

This profile is built from EPA public records for system MT0004322 — 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.