Home/ Directory/ MT/ RYAN DAM WATER SYSTEM

Water system · PWSID MT0000046

RYAN DAM WATER SYSTEM

HELENA, MT · ~230 people served

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

PWSID

MT0000046

State

Montana

City

HELENA

Population served

230

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

62

Violations on record

0

Unaddressed

6

Health-based

83

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2023. Official EPA record →

Treatment technique · Lead & Copper Rule health-based began May 2023 Resolved
Monitoring & reporting · EPA contaminant 3014 began Apr 2023 Resolved
Other · EPA contaminant 7000 began Jul 2019 Resolved
Monitoring & reporting · EPA contaminant 0700 began Jul 2019 Resolved
Monitoring & reporting · EPA contaminant 0700 began Jul 2018 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2012 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2011 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2011 Resolved
Monitoring & reporting · EPA contaminant 1094 began Jan 2011 Resolved
Monitoring & reporting · Total coliform began Dec 2008 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2008 Resolved
Other · EPA contaminant 7000 began Jul 2008 Resolved

Recent enforcement actions

  • State action · SIE Jun 2023
  • State action · SIA Jun 2023
  • State action · SIF Jun 2023
  • State action · SIA Jun 2023
  • State action · SIE Jun 2023
  • State action · SOX Jun 2023
  • State action · SOX Apr 2023
  • State action · SIF Sep 2019

This profile is built from EPA public records for system MT0000046 — 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.