PWSID
OR4100262
State
Oregon
City
DUNDEE
Population served
2,960
Primary source
Groundwater
Score history
▼ 9 points — the score moved from 100 to 91 on Jun 18, 2026, as newly published EPA data was incorporated.
2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.
PFAS & contaminant readings
Latest detections from EPA’s UCMR5 monitoring (through Oct 2023). Levels in parts per trillion (ppt).
PFOS
Perfluorooctanesulfonic acid
4.2 ppt
limit 4 ppt
Violations & enforcement
249
Violations on record
0
Unaddressed
2
Health-based
96
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Nov 2025. Official EPA record →
Recent enforcement actions
- State action · SOX Nov 2025
- State action · SOX Aug 2024
- State action · SOX May 2023
- State action · SOX May 2023
- State action · SOX May 2023
- State action · SOX May 2023
- State action · SOX May 2023
- State action · SOX May 2023
This profile is built from EPA public records for system OR4100262 — 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.