Bulk Plant cleanup site — Restorical Research
GATX Tank Storage Terminal
1733 Alaskan Way S, Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a bulk fuel distribution terminal going back to 1944. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

Shell Oil Company owned and operated a petroleum storage and distribution facility at this site from 1944 until 1994, when GATX acquired the property. Over five decades of bulk petroleum operations — including historical spills affecting the facility's B Yard — left confirmed contamination across multiple media: free-phase hydrocarbons and dissolved petroleum exceeding Surface Water Quality Standards in groundwater, dissolved lead and arsenic above those same standards, and metals priority pollutants, non-halogenated solvents, and polycyclic aromatic hydrocarbons confirmed in groundwater and suspected in sediment. The site is part of the Harbor Island Superfund Site Tank Farm Operable Unit and underwent cleanup under a Consent Decree entered in April 2000; active operations-and-maintenance monitoring continues. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Bulk Plant
Address1733 Alaskan Way S, Seattle, King County
Historical UseBulk Plant
Est. Operating Since1944
StatusCleanup Complete — Active O&M/Monitoring
Contamination & Investigation
Site Assessment Summary
ContaminantsMetals priority pollutants (lead, arsenic), petroleum hydrocarbons, non-halogenated solvents, and polycyclic aromatic hydrocarbons (PAHs) confirmed in groundwater and suspected in sediment
Media ImpactedSoil, Groundwater, Sediment
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #2543

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 storage and distribution at this property began in 1944 and continued for 42 years before the 1986 transition away from occurrence-based Commercial General Liability policies. The contamination confirmed here — free-phase hydrocarbons, dissolved petroleum, lead, arsenic, PAHs, and solvents — is the product of decades of industrial operations conducted squarely within the coverage window of those pre-1986 policies. Remediation costs incurred under the Consent Decree and the ongoing monitoring obligations represent expenditures that historical carriers who insured the facility during its 1944–1986 operational period may still be obligated to fund.

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.