Bulk Plant cleanup site — Restorical Research
Westlake Properties
1105 1111 1121 1207 1219 Westlake Ave N, Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a bulk fuel distribution terminal going back to 1912. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This property served as a bulk fuels storage terminal operated by Shell Oil Company and Washington Refining Company from approximately 1912 through the mid-1970s, handling gasoline, heating oil, lubricating oil, and diesel through a system of above-ground tanks and underground storage tanks along Westlake and Dexter Avenues. Cleanup under the Voluntary Cleanup Program included the removal and decommissioning of five underground storage tanks, excavation and off-site disposal of 678 tons of petroleum-contaminated soil, recovery of 18,600 gallons of liquid petroleum product, and decommissioning of one additional UST in place using controlled density fill. Contamination at the site has been characterized as very weathered, consistent with historical releases accumulated over decades of bulk fuel operations. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Bulk Plant
Address1105 1111 1121 1207 1219 Westlake Ave N, Seattle, King County
Historical UseBulk Plant
Est. Operating Since1912
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (weathered gasoline, heating oil, and lubricating oil) from bulk storage operations detected in soil
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #1357

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 here originated from bulk storage and distribution operations that ran for more than half a century before 1986, when occurrence-based Commercial General Liability policies still lacked an effective pollution exclusion in Washington. Shell Oil Company and Washington Refining Company operated this terminal throughout the decades when those policies were the industry standard, and the weathered gasoline and heating oil residues documented in the soil are precisely the type of slow, long-standing release those policies were written to cover. The remediation expenditures already on record — five tank removals, nearly 700 tons of contaminated soil disposal, and recovery of thousands of gallons of product — represent costs the historical carriers whose policies were in force during that operational window 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.