MOUNTAIN HERITAGE WATER SYSTEM

HELENA, MT · ~175 people served

Check your exact address → HELENA overview

100

Excellent

PurityRadar safety score

PWSID

MT0002873

State

Montana

City

HELENA

Population served

175

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 2023. Official EPA record →

Monitoring & reporting · EPA contaminant 1036 began Jan 2020 Resolved

Monitoring & reporting · Antimony began Jan 2020 Resolved

Monitoring & reporting · EPA contaminant 1085 began Jan 2020 Resolved

Monitoring & reporting · EPA contaminant 1075 began Jan 2020 Resolved

Monitoring & reporting · Beryllium began Jan 2020 Resolved

Monitoring & reporting · Barium began Jan 2020 Resolved

Monitoring & reporting · Cadmium began Jan 2020 Resolved

Monitoring & reporting · Chromium (total) began Jan 2020 Resolved

Monitoring & reporting · Fluoride began Jan 2020 Resolved

Monitoring & reporting · Selenium began Jan 2020 Resolved

Monitoring & reporting · Lead & Copper Rule began Apr 2019 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 2018 Resolved

Recent enforcement actions

State action · SIA Jan 2023
State action · SIE Jan 2023
State action · SOX May 2022
State action · SOX Feb 2021
State action · SIA Apr 2019
State action · SOX Jan 2018
State action · SOX Jan 2018
State action · SIA Jan 2018

This profile is built from EPA public records for system MT0002873 — 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.