Public Works cleanup site — Restorical Research
King County Metro Transit Atlantic Base
1555 Airport Way S, Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a public works and maintenance facility going back to 1979. Historical insurance policies issued during operations at this property and through 1986 could fund a cleanup — and recover costs already spent.

The King County Metro Transit Atlantic Base at 1555 Airport Way S in Seattle has operated as a bus maintenance and fueling facility, currently servicing a fleet of approximately 220 electric and diesel-powered buses. Underground storage tanks at the site were constructed and in service as early as 1979, with leaded gasoline among the fuels stored. Cleanup under the Standard Cleanup program has included the excavation and removal of eighteen underground storage tanks and 100 tons of petroleum hydrocarbon-impacted soil, along with groundwater monitoring and a recommendation for natural attenuation of remaining contamination. Cleanup work is ongoing. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Public Works
Address1555 Airport Way S, Seattle, King County
Historical UsePublic Works
Est. Operating Since1979
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (including leaded gasoline constituents) detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #7230

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 facility traces to underground storage tanks installed and operated beginning in 1979 — seven years before occurrence-based Commercial General Liability policies gave way to claims-made forms with absolute pollution exclusions. The documented remediation expenditures — removal of eighteen USTs, excavation of impacted soil, and sustained groundwater monitoring — represent costs tied directly to releases from those pre-1986 operations. Historical carriers who provided CGL coverage to the transit authority during that operational window may be obligated both to reimburse past cleanup costs and to fund the remediation still under way.

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.