This property has a documented history as a property with a heating oil tank predating 1986. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.
A former 1,800-gallon heating oil underground storage tank — discovered during the property's redevelopment — was removed in May 2016 in severely deteriorated condition, with corrosion so advanced that holes up to six inches in diameter had formed in the tank walls. Cleanup activities included the excavation of 175 cubic yards of petroleum-affected soil with deeper localized slot cuts, application of chemical oxidation product during excavation, and installation of eight groundwater monitoring wells. LNAPL recovery using recovery socks has continued under quarterly and then annual monitoring events, and remediation work remains 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 degree of corrosion documented at removal — rusting through to holes up to six inches across — is consistent with decades of in-ground service predating the mid-1980s tightening of UST regulations, placing the tank's operational period squarely within the era when occurrence-based CGL policies carried no effective pollution exclusion in Washington. Petroleum hydrocarbon contamination at this site traces directly to that pre-1986 tank operation. The documented remediation costs — UST removal, soil excavation, chemical oxidation, and an ongoing monitoring and LNAPL recovery program — are the type of expenditures that historical carriers whose policies covered the property during that window may still 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.


