PWSID
MT0000301
State
Montana
City
OPHEIM
Population served
111
Primary source
SWP
Score history
No change since tracking began Jun 18, 2026.
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
55
Violations on record
0
Unaddressed
15
Health-based
128
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Sep 2024. Official EPA record →
Recent enforcement actions
- State action · SIF Sep 2024
- State action · SIA Aug 2024
- State action · SIA Aug 2024
- State action · SIE Aug 2024
- State action · SIE Aug 2024
- State action · SOX Dec 2023
- State action · SOX Dec 2023
- State action · SOX Oct 2021
This profile is built from EPA public records for system MT0000301 — 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.