This property operated as a Chevron service station at 4044 Northeast Sunset Boulevard in Renton, with underground storage tanks used for retail fuel dispensing. A release of petroleum hydrocarbons from the USTs led to the site's inclusion in Ecology's Leaking Underground Storage Tank database. Remedial actions from 1991 through 1999 included UST closure and removal, multi-year quarterly groundwater monitoring, and sampling, culminating in a No Further Action determination from Ecology. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.
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 contamination at this former Chevron station originated from underground storage tanks that were in service well before 1986, when occurrence-based Commercial General Liability policies were the industry standard and carried no effective pollution exclusion. Eight years of documented remediation — tank removal, groundwater monitoring, and sampling — represent cleanup expenditures tied directly to releases from those pre-1986 fueling operations. Historical carriers who issued CGL policies during the station's operational window may still be obligated to recover those costs.
Restorical's role is to locate viable historical policies, determine whether a successful cost recovery claim is possible, and assist our clients and their legal counsel to obtain insurance coverage for costs already incurred. Restorical's forensic accounting team works to re-establish and document past cleanup expenditures, ensuring the strongest possible basis for recovery.
If this site reached No Further Action years ago, the original cleanup expenditures may be difficult to reconstruct. Restorical's forensic accounting team specializes in re-establishing and documenting past cleanup costs — even decades later — to build the strongest possible basis for an insurance recovery claim.
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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.