Gas Station cleanup site — Restorical Research
Time Oil 01295
Shoreline, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station predating 1986. 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 retail gasoline station with underground storage tanks predating 1986, confirmed by precision testing records from 1989. In April 1991, four gasoline USTs totaling 36,000 gallons and one 500-gallon used motor oil tank were removed, with approximately 425 cubic yards of contaminated soil excavated and an additional 100 cubic yards of contaminated fill identified but left in place. Free-product recovery from groundwater has been ongoing since at least 1993, a vapor extraction pilot test was conducted that same year, and a dual-phase vapor extraction system is planned for continued soil and groundwater remediation. The site remains in active commercial use as a Jackpot convenience store and retail gasoline station. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
AddressShoreline, King County
Historical UseGas Station
Est. Operating SincePre-1986
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsGasoline-range petroleum hydrocarbons (GRPH) and BTEX detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #8400

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.

The petroleum contamination at this property — gasoline-range hydrocarbons and BTEX in soil and groundwater — originated from underground storage tanks that were in service well before 1986, when occurrence-based Commercial General Liability policies carried no effective pollution exclusion in Washington. The documented remediation costs spanning more than three decades — tank removals, soil excavation, free-product recovery, vapor extraction testing, and long-term monitoring — represent expenditures the historical carriers may be obligated both to recover and to fund as cleanup continues under the dual-phase extraction system 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.