This property has a documented history as a gasoline service station predating 1986. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.
The Younker Property in Renton operated as a fueling site, with gasoline and diesel contamination documented in soil as early as February 1992 — gasoline measured at 110 ppm and diesel at 180 ppm in a test pit at the southeast corner of the property, both exceeding Washington State MTCA Method A cleanup levels. Remediation included the excavation of approximately 250 cubic yards of petroleum-impacted soil, removal of an additional 300 cubic yards of clean material, preparation of excavated soil for bioremediation, concrete disposal, and site backfill. Quarterly groundwater monitoring, with well purging during each sampling event, was conducted for over a year following the excavation work. Cleanup at the property remains ongoing 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.
Gasoline and diesel contamination of this character — detected at concentrations exceeding state cleanup thresholds, with no documented spill event or recent accident — is consistent with gradual release from underground storage tanks or fueling infrastructure operated over many years prior to 1986. That pre-1986 window is precisely when occurrence-based Commercial General Liability policies were still the industry standard and carried no effective pollution exclusion in Washington. The documented remediation expenditures at this site — soil excavation, bioremediation preparation, and sustained groundwater monitoring — represent costs tied directly to those historical operations, and historical CGL carriers whose policies were in force during that period may be obligated to recover those costs and fund the cleanup work still ahead.
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.


