PWSID
WA5303950
State
Washington
City
Mt Vernon
Population served
810
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
7
Violations on record
1
Unaddressed
1
Health-based
7
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Jan 2023. Official EPA record →
Recent enforcement actions
- State action · SOX Jan 2023
- State action · SIA Oct 2022
- State action · SOX Aug 2018
- State action · SOX Oct 2012
- State action · SOX Jun 2010
- EPA/federal action · EOX Dec 1999
- EPA/federal action · EFJ Aug 1994
This profile is built from EPA public records for system WA5303950 — 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.