Heating Oil Tank cleanup site — Restorical Research
Sears Roebuck & Co
Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a property with a heating oil tank going back to 1910. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This property operated as a Sears Roebuck & Co retail and warehouse facility from 1910 through 1993, with a concrete three-cell underground storage tank supplying diesel fuel and Bunker C oil to boilers in the main building. An estimated 2,000 to 3,000 gallons of diesel fuel were released from the UST in 1985, prompting product removal that year and Bunker C oil removal and UST closure in 1993. Approximately 1,700 cubic yards of contaminated soil were excavated in 1995, and the site has remained under the Voluntary Cleanup Program with regulatory oversight continuing through at least 2008. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Heating Oil Tank
AddressSeattle, King County
Historical UseHeating Oil Tank
Est. Operating Since1910
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsDiesel fuel and Bunker C oil from a leaking underground storage tank detected in soil
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #5845

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 property originated from a heating-oil storage system that served Sears operations dating back to 1910 — more than seven decades before occurrence-based Commercial General Liability policies gave way to claims-made forms with pollution exclusions. The documented remediation costs here — product recovery, UST closure, excavation of 1,700 cubic yards of soil, and years of regulatory compliance — were incurred to address releases tied directly to those pre-1986 operations. Historical carriers who issued CGL policies during the decades the UST was in service may be obligated both to recover past cleanup expenditures and to fund the remaining work.

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.