This property has a documented history as a gasoline service station going back to 1959. 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 Shell gasoline service station beginning in 1959, when one 6,000-gallon and two 4,000-gallon underground storage tanks were installed; the station also included service bays and a car wash. Cleanup has included excavation and removal of two underground concrete vaults and a significant volume of contaminated soil, as well as pumping of contaminated groundwater for disposal. Gasoline contamination in soil and groundwater has been reduced to below cleanup levels, but other petroleum products and halogenated solvents remain above cleanup levels in both media, with monitoring points in place for continued groundwater sampling. 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.
The contamination driving ongoing remediation at this site originated from underground storage tanks installed in 1959 and 1960 — more than two decades before 1986, when occurrence-based Commercial General Liability policies still lacked an effective pollution exclusion in Washington. The documented cleanup expenditures — concrete vault removal, soil excavation, groundwater pumping, and long-term monitoring — are directly traceable to petroleum and solvent releases from those pre-1986 operations. Historical carriers who issued CGL policies to the Shell station operators during that era may be obligated both to recover costs already incurred and to fund the remediation work that remains.
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.


