Landfill cleanup site — Restorical Research
Cultus Bay Landfill
Possession, Island County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a landfill going back to 1958. Historical insurance policies issued during those prior operations and through 1986 could recover the cleanup costs already paid.

The Cultus Bay Landfill, located on the south end of Whidbey Island, began accepting municipal and domestic household waste in 1958 and operated as an open burning dump through 1969. The unlined facility closed on October 16, 1978, with the placement of six feet of silty cover material. The Island County Health Department conducted methane monitoring at the closed site from 1986 through 1992, and the site has since reached No Further Action status. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Landfill
AddressPossession, Island County
Historical UseLandfill
Est. Operating Since1958
StatusNo Further Action
Contamination & Investigation
Site Assessment Summary
ContaminantsMethane (landfill gas) from decomposing municipal and domestic solid waste in an unlined landfill
Media ImpactedSoil, Groundwater, Surface Water
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #4387

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 waste disposal and burning operations at Cultus Bay took place between 1958 and 1978 — entirely within the period when occurrence-based Commercial General Liability policies were the industry standard and carried no effective pollution exclusion. An unlined municipal dump accepting mixed household wastes over two decades presents exactly the kind of diffuse, long-term contamination profile those pre-1986 policies were written to cover. The post-closure monitoring and remediation costs tied to this site represent expenditures that historical carriers who issued CGL policies during the facility's operating years may still be obligated to address.

Restorical's role is to locate viable historical policies, determine whether a successful cost recovery claim is possible, and assist our clients and their legal counsel to obtain insurance coverage for costs already incurred. Restorical's forensic accounting team works to re-establish and document past cleanup expenditures, ensuring the strongest possible basis for recovery.

Recovering Costs from an Older Cleanup

If this site reached No Further Action years ago, the original cleanup expenditures may be difficult to reconstruct. Restorical's forensic accounting team specializes in re-establishing and documenting past cleanup costs — even decades later — to build the strongest possible basis for an insurance recovery claim.

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

Task 1 — Research and Analysis
Restorical searches for viable historical insurance policies, researches the site history, analyzes the contamination impacts, and underwrites potential coverage — including a proprietary trigger analysis. At the end of Task 1, we provide a clear yes or no on whether a successful cost recovery is possible, along with a strategy and recommendation specific to your situation, even if you are not the policyholder.
Task 2 — Cost Recovery
When Task 1 confirms viable coverage, Restorical works with your legal counsel to tender the claim and negotiate recovery of costs already incurred. Restorical's forensic accounting team re-establishes and documents past cleanup expenditures, managing the claim process to ensure the insurance companies fulfill their obligation in a timely manner.

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This analysis is preliminary and based on publicly available records. Restorical Research is not a law firm and does not provide legal advice.