This property has a documented history as a landfill going back to 1968. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.
The Colbert Landfill is a 40-acre Spokane County-owned sanitary landfill that operated from 1968 through 1986, accepting both municipal and commercial wastes, with hazardous substance disposal documented from 1975 to 1980. Groundwater contamination investigations began in 1980, and the site was placed on the National Priorities List in 1983. The landfill is now filled to capacity and no longer accepts waste. Remediation under the Standard Cleanup program has included groundwater extraction, installation and maintenance of a landfill cap, restricted site access via fencing and gates, and provision of an alternative water supply, with operation, maintenance, and monitoring 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.
The hazardous substance disposal that contaminated groundwater at this site occurred from 1975 to 1980 — squarely within the era when occurrence-based Commercial General Liability policies were standard and carried no effective pollution exclusion in Washington. The contamination was significant enough to trigger federal Superfund listing in 1983 and has driven decades of documented remediation expenditures, with responsible parties still facing reimbursement obligations for ongoing groundwater extraction, cap maintenance, monitoring, and alternative water supply costs. Historical CGL carriers who issued policies to operators or waste contributors during that pre-1986 window may remain obligated to fund a share of those cleanup costs.
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.


