This property served as a Delta Air Lines maintenance and operations facility at Seattle-Tacoma International Airport, with underground storage tanks holding gasoline, diesel, mineral spirits, ethylene glycol, and waste oil — consistent with large-scale vehicle and aircraft support operations. Six USTs and two hydraulic hoists were removed in 1992 and 2000, and approximately 1,770 cubic yards of petroleum-contaminated soil were overexcavated, with 650 cubic yards disposed off-site and 150 cubic yards treated on-site through aeration and biodegradation. Cleanup work is ongoing. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.
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 underground storage tanks removed from this facility in 1992 were likely installed decades earlier, placing the origin of contamination well before 1986 — the year occurrence-based Commercial General Liability policies stopped reliably covering pollution claims in Washington. The documented remediation expenditures — tank removals, hydraulic hoist decommissioning, large-scale soil excavation, off-site disposal, and on-site treatment — represent costs tied directly to those long-running pre-1986 operations. Historical carriers who issued CGL policies during the period these tanks were in service may be obligated both to recover past cleanup costs and to fund the remediation still ahead.
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.
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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.