This property has a documented history as a landfill going back to 1972. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup.
The Cascade Demolition Fill Landfill operated as a permitted 12.5-acre demolition disposal site in Lakewood from 1972 through May 1987, accepting demolition material, garbage, sheetrock, crushed tile, gravel, and other debris. Decomposition of that buried fill has generated methane and hydrogen sulfide gas and has resulted in documented groundwater contamination at the site. Response work conducted to date includes site closures, covering with soil and mulch, waste removal, well abandonment, regrading, hydroseeding, storm drain rerouting, and installation of passive methane gas collection and venting systems at multiple nearby structures. Multi-year monitoring for methane, hydrogen sulfide, and groundwater contaminants is ongoing, and the site remains in the Awaiting Cleanup phase under Standard Cleanup. 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 landfill accepted waste from 1972 through 1987, meaning at least fourteen years of active disposal operations preceded the industry-wide shift away from occurrence-based Commercial General Liability policies — policies that, when issued before 1986, carried no effective pollution exclusion in Washington. The methane generation, hydrogen sulfide accumulation, and groundwater contamination documented here are the direct product of decomposing materials buried during that pre-1986 window, making this a textbook slow-release contamination scenario those policies were written to cover. With formal cleanup work still ahead, the costs of engineered remediation, long-term gas management, and groundwater monitoring represent future expenditures that historical carriers whose policies were in force during the 1972–1986 operational period may be obligated to fund.
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.


