This property has a documented history as a gasoline service station going back to 1978. Historical insurance policies issued during operations at this property and through 1986 could fund a cleanup — and recover costs already spent.
This property operated as a retail gasoline service station dispensing leaded and unleaded gasoline from at least 1978, when its underground storage tanks were installed. A release was first reported in 1988, initiating a multi-decade remediation effort under the Voluntary Cleanup Program that included a groundwater treatment system (1988–1995), a Soil Vapor Extraction and Dual Phase Extraction system (1996–2000), nutrient injections (1999–2001), removal of three USTs and 835 tons of contaminated soil in 2013, and two rounds of in-situ biological treatment with BOS-200® and conditioned bacteria in 2013 and 2015. Quarterly groundwater monitoring remains ongoing. 7-Eleven currently leases the property and operates a convenience store, though retail gasoline sales have ceased. 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 here traces directly to underground storage tanks installed in 1978 and to leaded-gasoline operations that predate 1986 by nearly a decade — the precise operational window when occurrence-based Commercial General Liability policies were standard and carried no effective pollution exclusion in Washington. The documented remediation at this site spans nearly four decades: groundwater treatment, vapor extraction, soil excavation, multiple in-situ biological treatments, and continuous monitoring all represent costs tied to that pre-1986 release. Historical carriers who issued CGL policies during the station's operating years may be obligated to contribute to the expenditures already incurred and to fund the monitoring work that continues to accrue.
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
Ready to learn more?
Contact UsThis analysis is preliminary and based on publicly available records. Restorical Research is not a law firm and does not provide legal advice.


