This property has a documented history as a public works and maintenance facility going back to 1952. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.
This property served as a service station and vehicle fueling and maintenance facility for the King County Department of Transportation Road Maintenance operation, with Building 10 redeveloped for that purpose in 1952 and operating until 1990. Underground storage tanks were removed in 1990 and a waste oil UST was closed in place in 1998; a separate tar contamination source — a historic underground electrical conduit in the Building 5 area — was discovered in 2008. Cleanup under the Standard Cleanup program has included excavation of 124 tons and 700 cubic yards of contaminated soil, removal of tar-like materials, concrete floors, catch basins, piping, and USTs, with quarterly groundwater monitoring conducted from 2006 through 2009. Remediation work at the site is ongoing. 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.
Fueling and maintenance operations at this facility began in 1952 — more than three decades before 1986, when occurrence-based Commercial General Liability policies still carried no effective pollution exclusion in Washington. The contamination discovered here, from both petroleum infrastructure and historic subsurface utilities, is the product of those decades of pre-1986 operations. Documented remediation expenditures — large-scale soil excavation, tank removals, infrastructure demolition, and years of groundwater monitoring — represent costs that historical CGL carriers may be obligated both to reimburse and to fund as cleanup continues.
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.


