MOUNTAIN SHADOWS ESTATES STEVENSVILLE

MISSOULA, MT · ~55 people served

Check your exact address → MISSOULA overview

100

Excellent

PurityRadar safety score

PWSID

MT0002132

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 Jan 2026. Official EPA record →

Treatment technique · Lead & Copper Rule health-based began Dec 2025 Unaddressed

Monitoring & reporting · EPA contaminant 3014 began Sep 2022 Resolved

Other · EPA contaminant 7000 began Jul 2017 Resolved

Monitoring & reporting · Total coliform began Aug 2012 Resolved

Monitoring & reporting · Thallium began Jan 2012 Resolved

Max contaminant level (MCL) · Total coliform health-based began Oct 2011 Resolved

Monitoring & reporting · EPA contaminant 3014 began Oct 2011 Resolved

Monitoring & reporting · EPA contaminant 2964 began Jan 2011 Resolved

Monitoring & reporting · EPA contaminant 2968 began Jan 2011 Resolved

Monitoring & reporting · EPA contaminant 2955 began Jan 2011 Resolved

Monitoring & reporting · EPA contaminant 2378 began Jan 2011 Resolved

Monitoring & reporting · EPA contaminant 2380 began Jan 2011 Resolved

Recent enforcement actions

State action · SIE Jan 2026
State action · SIA Jan 2026
State action · SIF Dec 2022
State action · SIE Nov 2022
State action · SIA Nov 2022
State action · SOX Sep 2022
State action · SOX Jul 2017
State action · SIA Jul 2017

This profile is built from EPA public records for system MT0002132 — 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.