This property has a documented history as a landfill going back to 1947. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup.
This property served as the principal municipal landfill for southwest King County from 1947 through 1967, operated by the King County Solid Waste Division to receive municipal solid waste over two decades of active disposal. Early remedial measures included stream re-routing via culvert in 1965, landfill capping with four feet of soil, and excavation and regrading of landfill depressions in 1970. The Seattle-King County Health Department conducted preliminary assessments in 1984–1985 and formally identified the site as an abandoned landfill in a December 1986 report; a landfill gas extraction system was initiated in 1994, and general remedial work was contracted in 1996. Full cleanup under the Standard Cleanup program has not yet commenced. 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.
All of the waste accepted at this site — and the landfill gas and leachate migrating from it — originated from disposal operations that ran entirely before 1986, the year occurrence-based CGL policies effectively ceased to cover pollution liability. King County Solid Waste Division and any commercial operators who held CGL policies during the landfill's twenty-year operating life may face enforceable coverage obligations under those pre-1986 instruments. The remediation expenditures this site now faces — gas extraction infrastructure, leachate management, long-term monitoring — could plausibly be funded by historical carriers whose policies were in force when the waste was placed in the ground.
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.
