Gas Station cleanup site — Restorical Research
USA Petroleum 115
765 Rainier Ave S, Renton, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station going back to 1964. Historical insurance policies issued during operations at this property and through 1986 could fund a cleanup — and recover costs already spent.

This property has operated as a petroleum fueling facility since at least 1964, when a waste oil underground storage tank was installed; a retail gasoline station with four 10,000-gallon single-wall steel USTs began operating in 1975. A release was first reported in 1990, and cleanup under the Voluntary Cleanup Program has included excavation and disposal of approximately 1,147 tons of petroleum-impacted soil, removal and treatment of over 135,000 gallons of contaminated groundwater, operation of a soil vapor extraction and air-sparge system from 1994 through 2008, and application of 150 kilograms of calcium peroxide. The property remains an active retail gasoline and diesel station with a convenience store. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address765 Rainier Ave S, Renton, King County
Historical UseGas Station
Est. Operating Since1964
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (gasoline, diesel) from leaking USTs detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #11155

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 installed in 1964 and 1975 — more than a decade before occurrence-based Commercial General Liability policies gave way to claims-made forms with absolute pollution exclusions. The remediation costs documented here — large-scale soil excavation, years of groundwater treatment, fourteen years of vapor extraction and air sparging, and chemical oxidant injection — trace directly to releases from those pre-1986 tank systems. Historical CGL carriers who covered this facility during its first two decades of operation may remain obligated to fund both the cleanup expenditures already incurred and remediation costs 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

Task 1 — Research and Analysis
Restorical searches for viable historical insurance policies, researches the site history, analyzes the contamination impacts, and underwrites potential coverage — including a proprietary trigger analysis. At the end of Task 1, we provide a clear yes or no on whether a successful cost recovery is possible, along with a strategy and recommendation specific to your situation, even if you are not the policyholder.
Task 2 — Coverage and Funding
When Task 1 confirms viable coverage, Restorical works with your legal counsel to tender the claim, negotiate and secure insurance coverage. Restorical will manage the ongoing claim process, including accounting to ensure the insurance companies are funding your remediation in a timely manner.

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This analysis is preliminary and based on publicly available records. Restorical Research is not a law firm and does not provide legal advice.