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Water system · PWSID MT0004518

VALLEY WATER SYSTEM THE

STEVENSVILLE, MT · ~82 people served

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

PWSID

MT0004518

State

Montana

City

STEVENSVILLE

Population served

82

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

36

Violations on record

1

Unaddressed

0

Health-based

33

Enforcement actions

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

Other · EPA contaminant 7000 began Jul 2018 Unaddressed
Monitoring & reporting · Uranium began Jan 2020 Resolved
Monitoring & reporting · EPA contaminant 2977 began Jan 2014 Resolved
Monitoring & reporting · EPA contaminant 2976 began Jan 2014 Resolved
Monitoring & reporting · EPA contaminant 2981 began Jan 2014 Resolved
Monitoring & reporting · EPA contaminant 2982 began Jan 2014 Resolved
Monitoring & reporting · EPA contaminant 2984 began Jan 2014 Resolved
Monitoring & reporting · EPA contaminant 2983 began Jan 2014 Resolved
Monitoring & reporting · EPA contaminant 2985 began Jan 2014 Resolved
Monitoring & reporting · EPA contaminant 2980 began Jan 2014 Resolved
Monitoring & reporting · EPA contaminant 2987 began Jan 2014 Resolved
Monitoring & reporting · EPA contaminant 2979 began Jan 2014 Resolved

Recent enforcement actions

  • State action · SIF Jun 2023
  • State action · SOX Feb 2023
  • State action · SOX Feb 2023
  • State action · SOX Feb 2023
  • State action · SOX Feb 2023
  • State action · SOX Feb 2023
  • State action · SOX Feb 2023
  • State action · SIE Jan 2023

This profile is built from EPA public records for system MT0004518 — 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.