Industrial & Manufacturing cleanup site — Restorical Research
Boeing Military Flight Center
10002 E Marginal Way S, Tukwila, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a industrial and manufacturing facility going back to 1940. Historical insurance policies issued during operations at this property and through 1986 could fund a cleanup — and recover costs already spent.

The Boeing Military Flight Center is a flightline support facility where Boeing has conducted aircraft storage, flight preparation, general servicing, maintenance, and repair operations; the site was paved for airplane storage as early as 1940. Cleanup activities have included multiple phases of soil and debris excavation, removal of PCB-containing concrete joint material and building caulk, and ongoing stormwater monitoring and abatement, with remediation work documented across 2005, 2006, 2013, 2014, and 2015. Cleanup remains ongoing under the Standard Cleanup program. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Industrial & Manufacturing
Address10002 E Marginal Way S, Tukwila, King County
Historical UseIndustrial & Manufacturing
Est. Operating Since1940
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPolychlorinated biphenyls (PCBs) from concrete joint material, building caulk, and paint detected in soil; ongoing stormwater contamination
Media ImpactedSoil, Groundwater, Surface Water
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #12904

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 Washington. 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 PCB-containing joint materials, caulk, and paint identified at this facility are characteristic of industrial construction and maintenance practices in use decades before PCBs were banned from manufacturing in 1979 — well before the 1986 threshold at which occurrence-based CGL policies still carried no effective pollution exclusion. Contamination here is attributable to historical materials and operational stormwater discharge from aviation servicing activities that predate 1986 by decades, not to any discrete post-1986 incident. Historical carriers who issued CGL policies during that pre-1986 operational window may be obligated to recover documented remediation expenditures already incurred and to fund the cleanup work still underway.

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 & Forensic Accounting

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 a successful cost recovery is possible, 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.