Gas Station cleanup site — Restorical Research
7-Eleven 27742
20008 International Blvd, Seatac, 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.

The 7-Eleven 27742 at 20008 International Boulevard, SeaTac operates as an active retail fueling station with underground storage tanks and documented petroleum hydrocarbon contamination in soil, groundwater, and soil vapor. Cleanup activities have included historical UST removal and replacement, soil excavations associated with vapor system upgrades, and the installation and subsequent removal of a groundwater product recovery system. A soil vapor extraction system was operated at the site, recovering approximately 1,600 pounds of hydrocarbons, and multi-year pilot testing of SVE, air sparge, and water injection techniques has been conducted. Remediation remains a multi-year project, with monitoring and evaluation of remedial alternatives continuing under Washington's Standard Cleanup program. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address20008 International Blvd, Seatac, King County
Historical UseGas Station
Est. Operating SincePre-1986
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (TPH, LNAPL) from leaking USTs detected in soil, groundwater, and soil vapor
Media ImpactedSoil, Groundwater, Air
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #16910

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.

LNAPL was detected at this property as early as 1991, and a leaking underground storage tank notification was filed in 1992 — both pointing to releases from fueling operations that predate 1986, the cutoff year for occurrence-based Commercial General Liability policies that carried no effective pollution exclusion. The documented remediation record — UST removal, soil excavation, a groundwater recovery system, vapor extraction of 1,600 pounds of hydrocarbons, and multi-year pilot testing — represents a substantial cost trail tied directly to those pre-1986 operational releases. Because cleanup is still in active evaluation with additional remediation phases anticipated, historical carriers whose CGL policies covered this fueling station before 1986 may bear obligations for both incurred and future remediation expenditures.

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.