PWSID
OR4100958
State
Oregon
City
YONCALLA
Population served
1,050
Primary source
Surface water
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
250
Violations on record
2
Unaddressed
44
Health-based
252
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Sep 2025. Official EPA record →
Recent enforcement actions
- State action · SOX Sep 2025
- State action · SOX Jun 2024
- State action · SOX Apr 2024
- State action · SOX Jul 2023
- State action · SOX Jul 2022
- State action · SOX May 2022
- State action · SIE Apr 2022
- State action · SOX Jan 2022
This profile is built from EPA public records for system OR4100958 — 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.