This property has a documented history as a public works and maintenance facility going back to 1954. Historical insurance policies issued during operations at this property and through 1986 could fund a cleanup — and recover costs already spent.
This property was developed as a residential housing project in 1943 and redeveloped in 1954 into its current use as a King County Archives and Records Center warehouse. Arsenic contamination is migrating onto the site from an adjacent property, with mobilization linked to remedial injections conducted at that neighboring site rather than any release originating here. Planned cleanup activities under the Voluntary Cleanup Program include excavation of approximately 750 cubic yards of impacted soil, interim remedial action, containerization and offsite disposal of waste generated during drilling and sampling, decommissioning of a monitoring well, and at least four consecutive quarters of groundwater monitoring. The warehouse remains in active use for public records storage by King County. 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.
This property has been in continuous government operation since 1954, well within the window when occurrence-based Commercial General Liability policies were standard and lacked effective pollution exclusions. The arsenic now requiring remediation crossed property boundaries as a result of conditions tied to operations at an adjacent site — precisely the kind of cross-boundary, gradual contamination scenario that pre-1986 CGL policies were written to address. The documented cleanup obligations here — soil excavation, waste disposal, and a multi-quarter groundwater monitoring program — represent costs that historical carriers whose policies covered the property during that pre-1986 operational period may be obligated both to recover 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.


