This property has a documented history as a gasoline service station going back to 1957. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.
This property operated as a Unocal gasoline service station (station #4384) from 1957 to 1994, with underground storage tanks for gasoline and heating oil installed and redeveloped across multiple phases in 1971, 1979, and 1983. Cleanup under the Voluntary Cleanup Program has included excavation of 1,054 tons of petroleum-contaminated soil, removal of a 1,000-gallon underground storage tank, and groundwater pumping, with remediation activities spanning 1990–1995 and resuming in 2024–2025. Natural attenuation is also part of the ongoing remedy. 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.
Petroleum contamination at this site originated from underground storage tanks that were installed and operated continuously from 1957 through 1994 — nearly three decades of operations falling squarely within the era of occurrence-based Commercial General Liability coverage. The documented remediation expenditures — large-scale soil excavation, tank removal, groundwater treatment, and monitoring that has now stretched across more than thirty years — represent costs that historical carriers who issued CGL policies during the pre-1986 operational window 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.


