Heating Oil Tank cleanup site — Restorical Research
Bellevue Hilton Red Lion
Bellevue, 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 1972. Historical insurance policies issued during those prior operations and through 1986 could recover the cleanup costs already paid.

This commercial hotel property maintained a 430-gallon single-walled steel underground storage tank storing diesel fuel for the facility's emergency generator, along with a separate unregulated heating oil tank. When the diesel UST was removed in February 1997, contaminated soil was discovered and 1.71 tons were excavated and disposed of; groundwater was purged from the excavation in 1998 and a monitoring well was installed. The heating oil tank was removed in July 2010, and the site received No Further Action status from Ecology in November 2010 following a multi-year review process. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Heating Oil Tank
AddressBellevue, King County
Historical UseHeating Oil Tank
Est. Operating Since1972
StatusNo Further Action
Contamination & Investigation
Site Assessment Summary
ContaminantsDiesel fuel (petroleum hydrocarbons) detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #9696

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 diesel UST at this property was estimated to have been installed by 1972 — more than a decade before occurrence-based Commercial General Liability policies began excluding pollution claims. The documented remediation costs spanning thirteen years — UST removals, soil excavation and disposal, groundwater recovery, monitoring well installation, and long-term oversight through 2010 — were incurred to address petroleum releases tied directly to that pre-1986 infrastructure. Historical carriers who issued CGL policies while the tank was in service may still be obligated to recover those cleanup expenditures.

Restorical's role is to locate viable historical policies, determine whether a successful cost recovery claim is possible, and assist our clients and their legal counsel to obtain insurance coverage for costs already incurred. Restorical's forensic accounting team works to re-establish and document past cleanup expenditures, ensuring the strongest possible basis for recovery.

Recovering Costs from an Older Cleanup

If this site reached No Further Action years ago, the original cleanup expenditures may be difficult to reconstruct. Restorical's forensic accounting team specializes in re-establishing and documenting past cleanup costs — even decades later — to build the strongest possible basis for an insurance recovery claim.

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 — Cost Recovery
When Task 1 confirms viable coverage, Restorical works with your legal counsel to tender the claim and negotiate recovery of costs already incurred. Restorical's forensic accounting team re-establishes and documents past cleanup expenditures, managing the claim process to ensure the insurance companies fulfill their obligation 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.