Bulk Plant cleanup site — Restorical Research
UNOCAL Seattle Marketing Terminal
Broad St & Western Ave & Bay St, Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a bulk fuel distribution terminal going back to 1910. Historical insurance policies issued during operations at this property and through 1986 could fund a cleanup — and recover costs already spent.

Unocal operated this petroleum bulk storage and distribution terminal from 1910 to 1975, with above-grade product storage tanks, product pipelines, loading racks, and a tanker loading dock handling leaded gasoline and other petroleum products over those decades. Remediation under multiple consent orders and action plans ran from 1988 through at least 1999, encompassing removal of approximately 57,000 tons of petroleum-contaminated soil, construction of a three-foot soil cap in the Lower Yard to contain remaining impacted soils, and treatment of discharging groundwater. The site remains under active operations-and-maintenance monitoring, including ongoing free product removal from groundwater by hand bailing. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Bulk Plant
AddressBroad St & Western Ave & Bay St, Seattle, King County
Historical UseBulk Plant
Est. Operating Since1910
StatusCleanup Complete — Active O&M/Monitoring
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons including leaded gasoline detected in soil and groundwater
Media ImpactedSoil, Groundwater, Surface Water, Sediment
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #1428

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 at this terminal traces to bulk storage and distribution operations that began in 1910 and ran for decades before 1986, when occurrence-based Commercial General Liability policies were the industry standard and contained no effective pollution exclusion in Washington. The documented past remediation expenditures — 57,000 tons of soil removal, a permanent soil cap, and years of groundwater treatment — represent costs that historical carriers whose policies were in force during Unocal's operational years may be obligated to recover. Equally important, the site's continuing operations-and-maintenance obligation — active groundwater monitoring and ongoing free product removal — is a forward-looking coverage need that those same historical policies may be required 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.