Industrial & Manufacturing cleanup site — Restorical Research
Fox Ave Building
6900 Fox Ave S, Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a industrial and manufacturing facility going back to 1956. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This property has been in industrial use since 1918, with Great Western International Chemical Company (GWCC) operating a chemical and petroleum repackaging and distribution facility on site from 1956 through the 1980s. GWCC received bulk chemicals — solvents, chlorinated compounds, acids, and pentachlorophenol — and custom-mixed, blended, and redistributed them, with underground storage tanks installed in 1956 and 1976. Cleanup has been ongoing since 1991 and includes the removal of ten USTs, extraction of 6.2 million gallons of contaminated groundwater and 200 gallons of NAPL, in-situ chemical oxidation using over 33,000 pounds of oxidants, multiple rounds of enhanced reductive dechlorination, and soil vapor extraction systems that recovered more than 5,000 pounds of VOCs. Additional thermal treatment, ERD, and long-term monitoring are planned. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Industrial & Manufacturing
Address6900 Fox Ave S, Seattle, King County
Historical UseIndustrial & Manufacturing
Est. Operating Since1956
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsChlorinated solvents, pentachlorophenol, petroleum hydrocarbons, and volatile organic compounds (VOCs) detected in soil, groundwater, and soil vapor
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #5082

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.

GWCC's chemical handling operations ran continuously from 1956 into the 1980s — nearly three decades during which occurrence-based CGL policies covered these operations without the pollution exclusions that became standard after 1986. The contamination now driving cleanup costs — chlorinated solvents, pentachlorophenol, and petroleum products released from GWCC's repackaging and blending operations — traces directly to that insured period. With remediation already spanning thirty-plus years and major work still ahead, CGL policies issued to GWCC during its 1956–1980s operational window represent a plausible source of recovery for both the costs already incurred and the thermal treatment and monitoring yet to come.

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.