This property has a documented history as a gasoline service station going back to 1928. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.
This property operated as a gasoline service station from 1928 through 1967, with underground storage tanks installed in 1954 and 1967. Petroleum hydrocarbon contamination in soil and groundwater has been identified in the southwestern portion of the site, attributed to the former Unocal station; a co-located dry cleaner operating from 1946 to 1979 also contributed tetrachloroethylene contamination. Cleanup under the Standard Cleanup program has included UST removals and in-place abandonments, building demolitions, over four years of groundwater recovery and vapor extraction system operation, and groundwater monitoring spanning from 1991 through at least 2021. Further investigative excavations, potential additional vapor extraction, and institutional controls including deed restrictions are planned. 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 service station operations that began nearly six decades before 1986, when occurrence-based Commercial General Liability policies were still standard and carried no effective pollution exclusion. The documented remediation expenditures — UST removal, groundwater recovery, vapor extraction, and three decades of monitoring — trace directly to releases from those pre-1986 operations. With cleanup still ongoing and additional investigation and institutional controls yet to come, historical carriers who issued CGL policies during the 1928–1967 operational window may be obligated both to recover past remediation costs and to fund the 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.


