This property has a documented history as a gasoline service station going back to 1930. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.
This property was developed around 1922 as an automobile repair garage and began selling gasoline in the 1930s, with underground storage tanks serving fuel dispensing operations for decades. Cleanup under the Voluntary Cleanup Program has included the removal of three USTs, excavation of approximately 1,498 tons of petroleum-contaminated soil across two phases in 2007 and 2008, installation and operation of an ozone-air sparging system with 15 sparge wells from 2011 to 2013, and quarterly groundwater monitoring from 2010 through 2015. A sub-slab depressurization system for vapor mitigation remains in operation, and proposed future cleanup alternatives — including additional soil excavation, in-situ chemical oxidation, and continued monitoring — carry estimated costs ranging from $156,000 to $245,000. 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.
Petroleum contamination at this site originated from underground storage tanks that were installed and operated beginning in the 1930s — more than five decades before occurrence-based CGL policies gave way to claims-made forms with absolute pollution exclusions in 1986. The documented remediation expenditures already incurred — UST removals, large-scale soil excavation, air sparging, vapor mitigation, and years of groundwater monitoring — along with the substantial future cleanup costs still ahead, represent the type of long-tail environmental liability that pre-1986 occurrence-based policies were written to cover. Historical carriers who provided CGL coverage during those decades of fueling operations may be obligated both to reimburse past cleanup costs and to fund the remediation 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.


