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Water system · PWSID MT0004719

NCMRWA TIBER SERVICE AREA

HELENA, MT · ~200 people served

Check your exact address → HELENA overview
100
Excellent
PurityRadar safety score

PWSID

MT0004719

State

Montana

City

HELENA

Population served

200

Primary source

SWP

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

19

Violations on record

0

Unaddressed

15

Health-based

73

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2024. Official EPA record →

Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jul 2024 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2024 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2023 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jul 2023 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2023 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2021 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2021 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2020 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jul 2020 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2020 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2020 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2020 Resolved

Recent enforcement actions

  • State action · SOX Dec 2024
  • State action · SIA Dec 2024
  • State action · SIE Dec 2024
  • State action · SIF Apr 2024
  • State action · SIA Apr 2024
  • State action · SIE Apr 2024
  • State action · SOX Apr 2024
  • State action · SIE Feb 2024

This profile is built from EPA public records for system MT0004719 — 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.