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Water system · PWSID OR4106054

BIG OAK MARINA

PORTLAND, OR · ~30 people served

Check your exact address → PORTLAND overview
100
Excellent
PurityRadar safety score

PWSID

OR4106054

State

Oregon

City

PORTLAND

Population served

30

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

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

83

Violations on record

1

Unaddressed

5

Health-based

72

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Nov 2025. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Jul 2025 Unaddressed
Other · EPA contaminant 7000 began Oct 2025 Resolved
Monitoring · Lead & Copper Rule began Sep 2025 Resolved
Other · EPA contaminant 7000 began Jul 2025 Resolved
Monitoring · Lead & Copper Rule began Feb 2025 Resolved
Max contaminant level (MCL) · Lead & Copper Rule health-based began Sep 2024 Resolved
Other · EPA contaminant 7500 began Aug 2024 Resolved
Max contaminant level (MCL) · Lead & Copper Rule health-based began Aug 2024 Resolved
Other · EPA contaminant 7000 began Jul 2024 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2024 Resolved
Monitoring & reporting · EPA contaminant 2378 began Jan 2024 Resolved
Monitoring & reporting · EPA contaminant 2969 began Jan 2024 Resolved

Recent enforcement actions

  • State action · SOX Nov 2025
  • State action · SOX Oct 2025
  • State action · SOX Mar 2025
  • State action · SOX Mar 2025
  • State action · SOX Mar 2025
  • State action · SOX Mar 2025
  • State action · SOX Mar 2025
  • State action · SOX Mar 2025

This profile is built from EPA public records for system OR4106054 — 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.