This property has a documented history as a property with a heating oil tank going back to 1946. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.
This residential site encompasses two properties — the Astion and McIntyre parcels — whose homes were both built in 1946 and heated by underground storage tanks that subsequently leaked diesel-range petroleum hydrocarbons into soil and groundwater. Remediation to date has included removal of a 300-gallon home-heating-oil UST, mass excavation of 180 tons of petroleum-contaminated soil, vacuum-truck removal of impacted groundwater, and a multi-step footing-drain flushing program using water, surfactant, and an oxygen-release compound. Additional work encompassed bioremediation, structural pin-pile installation, foundation crack repair, utility replacement, and full landscape restoration; cleanup is 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 petroleum releases here originated from heating-oil tanks installed when these homes were built in 1946 — nearly four decades before occurrence-based Commercial General Liability policies began routinely excluding pollution claims. The contamination reflects the slow, long-running leakage pattern that pre-1986 CGL policies were written to address, and the remediation record documents substantial expenditures: UST removal, extensive soil excavation, groundwater treatment, and structural repairs necessitated by the cleanup itself. Historical carriers who issued CGL policies to the property owners during that pre-1986 operational window may be obligated both to recover those past costs and to fund the cleanup work that remains.
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.


