Gas Station cleanup site — Restorical Research
Tukwila Justice Center
15005 Tukwila International Blvd, Tukwila, 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 those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

Prior to its 2020 redevelopment, this property hosted two successive generations of retail gasoline service stations on its northeastern portion, along with an automotive repair facility and on-site heating oil storage. Cleanup activities between 2019 and 2020 included the excavation and removal of six underground storage tanks and petroleum-impacted soil across six distinct areas, as well as installation of a vapor barrier beneath the building. Seven groundwater monitoring wells were installed and sampled through 2021, and cleanup work under the Standard Cleanup program remains ongoing. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address15005 Tukwila International Blvd, Tukwila, King County
Historical UseGas Station
Est. Operating SincePre-1986
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (gasoline and diesel) and heating oil detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #16826

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.

Two successive generations of fuel dispensing and automotive repair operations at this property mean the petroleum contamination — gasoline, diesel, and heating oil — originated from activities almost certainly predating 1986, when occurrence-based CGL policies carried no effective pollution exclusion in Washington. The documented remediation trail here — six UST removals, soil excavation across six separate impacted areas, a vapor barrier installation, and a multi-year groundwater monitoring program — represents expenditures tied directly to those pre-1986 operations. Historical carriers who issued CGL coverage to the service station operators during that window may be obligated to fund cleanup costs both already incurred and still to come.

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.