This property has a documented history as a public works and maintenance facility going back to 1968. Historical insurance policies issued during those prior operations and through 1986 could recover the cleanup costs already paid.
This property served as the WSDOT Dayton maintenance shop, a highway maintenance equipment and material storage facility with six underground storage tanks holding diesel, unleaded gasoline, and heating oil. In 1993–1994, all six USTs were removed and approximately 40 cubic yards of contaminated soil was excavated and bioremediated. Long-term groundwater monitoring followed, with wells installed in 2006 and monitoring events conducted through 2017. The site has achieved No Further Action status under the Standard Cleanup program. 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 presence of lead in soil samples — a marker of leaded gasoline use phased out before 1986 — and the age of the USTs themselves point to fuel storage operations dating to the late 1960s, squarely within the era of occurrence-based CGL coverage that carried no effective pollution exclusion. Decades of documented remediation expenditures — tank removals, soil excavation, bioremediation, monitoring well installation, and nearly a decade of groundwater sampling — represent costs tied to releases from those pre-1986 operations. Historical carriers who covered this facility during that window may still owe indemnity for the cleanup costs incurred.
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
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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.