PWSID
WY5680079
State
Wyoming
City
YELLOWSTONE
Population served
5,925
Primary source
Groundwater
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
37
Violations on record
1
Unaddressed
2
Health-based
10
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Aug 2025. Official EPA record →
Recent enforcement actions
- State action · SOX Aug 2025
- State action · SOX Aug 2025
- State action · SOX Dec 2023
- State action · SOX Jul 2018
- State action · SIF May 2018
- State action · SIF Oct 2013
- State action · SOX Sep 2013
- State action · SIF Sep 2013
This profile is built from EPA public records for system WY5680079 — 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.