This property has a documented history as a property with a heating oil tank going back to 1981. Historical insurance policies issued during those prior operations and through 1986 could recover the cleanup costs already paid.
This residential property at 5356 153rd Ave SE in Bellevue contained a 500-gallon underground heating oil tank beneath the Miller Residence that leaked, contaminating soil and groundwater on both the Miller and neighboring Bumgarner properties. Cleanup under the Voluntary Cleanup Program included decommissioning the tank in place, excavating and disposing of approximately 2,162 tons of impacted soil, and operating an active groundwater recovery system that treated over 251,000 gallons of contaminated water using an oil/water separator, infiltration trench, and hydrogen peroxide injection. An environmental covenant was recorded as an institutional control, and the site has reached No Further Action status. 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 underground heating oil tank at this property was installed in the early 1980s — before 1986, when occurrence-based Commercial General Liability policies were still the industry standard and carried no effective pollution exclusion in Washington. The slow, subsurface release from that tank drove remediation costs spanning soil excavation, long-term groundwater recovery, in-situ treatment, and institutional controls across two affected properties. Historical carriers whose CGL policies were in effect during the tank's pre-1986 operating years may still be obligated to recover those documented cleanup expenditures.
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.