This property has a documented history as a gasoline service station going back to 1920. 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 gasoline station under Union Oil Co. ownership during the 1920s and 1930s, with two 570-gallon underground storage tanks installed during that era and taken out of service by 1941. In 1998, both USTs were removed and 441 tons of petroleum-contaminated soil were excavated, treated by off-site thermal desorption, and the excavation pit backfilled and capped. The site is now enrolled in the Voluntary Cleanup Program with a restrictive covenant in place, quarterly groundwater monitoring ongoing since 2020, and planned vapor intrusion assessments and additional monitoring well installations ahead. 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 property — gasoline-range hydrocarbons and benzene — traces to underground storage tanks installed and operated more than five decades before 1986, when occurrence-based Commercial General Liability policies carried no effective pollution exclusion in Washington. The documented remediation costs already incurred — tank removal, large-scale soil excavation, thermal treatment — and the costs still accumulating through groundwater monitoring, vapor intrusion assessment, and ongoing waste management represent expenditures that historical carriers who insured the operator during that pre-1986 window may be obligated both to reimburse 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.


