PWSID
WA5392475
State
Washington
City
Walla Walla
Population served
787
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
0
Unaddressed
0
Health-based
5
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Oct 2021. Official EPA record →
Recent enforcement actions
- State action · SOX Oct 2021
- EPA/federal action · EO6 Jul 2004
- EPA/federal action · EO0 Jul 2004
- EPA/federal action · EO0 Jul 2003
- EPA/federal action · EOX Dec 1999
This profile is built from EPA public records for system WA5392475 — 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.