This property has a documented history as a bulk fuel distribution terminal going back to 1950. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.
This Woodinville property operated as a petroleum bulk storage and refining facility under Superior Oil, Inc. from the 1950s through the 1970s, with tank farm areas containing 35 above-ground storage tanks and 31 underground storage tanks. Remediation to date has included removal of all 66 tanks and excavation of 6,000 cubic yards of contaminated soil. Proposed future work under the Voluntary Cleanup Program includes in-situ chemical oxidation, enhanced bioremediation, soil vapor extraction, groundwater extraction and treatment, free-product recovery, and long-term monitored natural attenuation. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.
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.
Refinery and bulk storage operations at this site began in the 1950s — at least a decade before 1986, and potentially two or more — placing them squarely within the era when occurrence-based Commercial General Liability policies carried no effective pollution exclusion. The contamination profile here, including petroleum hydrocarbons, PCBs, and chlorinated solvents consistent with used-oil refining, is exactly what those pre-1986 policies were designed to cover. The documented remediation trail — tank removals, large-scale soil excavation, and an extensive multi-phase treatment program still being designed — represents expenditures the historical carriers may be obligated both to recover and to fund going forward.
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
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Contact UsThis analysis is preliminary and based on publicly available records. Restorical Research is not a law firm and does not provide legal advice.


