Industrial & Manufacturing cleanup site — Restorical Research
Brauner Residence Boeing Co
Black Diamond, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a industrial and manufacturing facility predating 1986. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This private residential property was used by a former owner to store approximately 7,000 pounds of industrial chemicals — solvents, resins, VOCs, petroleum hydrocarbons, and metals — obtained through Boeing surplus sales and held across 34 containers on site. By the time Boeing was contacted in December 2003 to assist with disposal, several structures on the property, including a Quonset shed and a boathouse, had collapsed, indicating the storage practices had persisted for an extended period prior to discovery. Cleanup involved full removal of the stored chemicals and miscellaneous debris, excavation of 38 tons of contaminated soil including a resin layer, and post-cleanup compliance monitoring through soil and septic sampling. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Industrial & Manufacturing
AddressBlack Diamond, King County
Historical UseIndustrial & Manufacturing
Est. Operating SincePre-1986
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsSolvents, VOCs, petroleum hydrocarbons (diesel-range), metals, and resin detected in soil; septic system also sampled
Media ImpactedSoil, Groundwater, Surface Water
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #198

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 chemicals stored here — Boeing-surplus solvents, VOCs, and petroleum hydrocarbons — are the same industrial compounds whose slow, ongoing release into soil and groundwater fell squarely within the coverage grant of pre-1986 CGL policies. The collapsed state of the Quonset shed and boathouse by 2003 places the active storage period well into the era before effective pollution exclusions were routinely added to CGL forms, meaning the carriers who issued policies during those years may still bear obligations. Excavation costs, chemical disposal, and compliance monitoring tied directly to that storage window are the kinds of remediation expenditures that historical insurers could be called on 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 & 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.