PFAS cleanup site — Restorical Research
Alaska PDX Hangar
Multnomah County
DEQ ECSI #6797
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a facility using PFAS-containing firefighting foam predating 1986. Historical insurance policies issued during those prior operations and through 1986 could help fund the cleanup that lies ahead.

This property in Multnomah County is impacted by PFAS contamination — specifically PFOS and PFOA exceeding EPA maximum contaminant levels in groundwater — originating from historical firefighting foam (AFFF) use at the neighboring Oregon Air National Guard facility. A Phase II Environmental Site Assessment completed in June 2025 confirmed PFAS in reconnaissance groundwater samples, with a PFAS hazard index exceeding 1.0 and groundwater encountered at 9 to 12.5 feet below ground surface. Oregon DEQ accepted the site into the Voluntary Cleanup Program in May 2026, and a draft Contaminated Media Management Plan outlines extensive remediation ahead, including contaminated soil disposal at Subtitle C and D landfills and a dewatering treatment system for PFAS-impacted groundwater. That history could support an insurance coverage claim against the carriers who issued policies more than 40 years ago — coverage that could help fund the cleanup ahead.

Former Use
Former PFAS
LocationMultnomah County
Historical UsePFAS
Est. Operating SincePredating 1986
Project StatusActive
Contamination & Investigation
Site Assessment Summary
ContaminantsPer- and polyfluoroalkyl substances (PFAS), including PFOS and PFOA, in groundwater
Regulatory ProgramOregon DEQ — Cleanup Program / VCP
DEQ ECSI #6797

Why Historical Insurance Policies May Be Accessible

Pre-1986 Commercial General Liability (CGL) policies were occurrence-based and did not contain an effective pollution exclusion in Oregon — and those policies may provide coverage that remains enforceable today. If contamination occurred while those policies were active, those historical insurance carriers may still have a legal obligation to fund the cleanup costs, even if the business closed or the property changed hands.

The PFAS contamination affecting this property traces to AFFF firefighting chemicals used at the adjacent military facility during operations that predate 1986. The cleanup costs this property still faces — soil excavation and off-site disposal, groundwater dewatering and treatment, and long-term monitoring under Oregon DEQ's Voluntary Cleanup Program — are substantial future obligations that historical pre-1986 carriers may be obligated to fund.

Restorical's role is to locate viable historical policies, determine whether a successful coverage claim is possible, and assist our clients and their legal counsel to obtain insurance coverage. Restorical then manages the claim, including accounting, to ensure the cleanup is funded in a timely manner.

What We Look For

  • Historical insurance policies (pre-1986)
  • Policy numbers, carrier names, and coverage periods
  • Connection between contamination timing and policy period
  • Evidence linking cleanup obligation to insured activity

What We Deliver

  • Historical Coverage Chart
  • Trigger Analysis & Property/Policy Nexus
  • Coverage strategy with recommendations
  • Insurance funding for your remediation
  • Claims Management

The Restorical Proven Process

Task 1 — Research and Analysis
Restorical searches for viable historical insurance policies, researches the site history, analyzes the contamination impacts, and underwrites potential coverage — including a proprietary trigger analysis. At the end of Task 1, we provide a clear yes or no on whether viable insurance coverage exists to fund the cleanup, along with a strategy and recommendation specific to your situation, even if you are not the policyholder.
Task 2 — Coverage and Funding
When Task 1 confirms viable coverage, Restorical works with your legal counsel to tender the claim, negotiate and secure insurance coverage. Restorical will manage the ongoing claim process, including accounting to ensure the insurance companies are funding your remediation in a timely manner.

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This analysis is preliminary and based on publicly available records. Restorical Research is not a law firm and does not provide legal advice.