Gas Station cleanup site — Restorical Research
Shell 120956
23419 Pacific Hwy S, Des Moines, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station going back to 1965. Historical insurance policies issued during those prior operations and through 1986 could recover the cleanup costs already paid.

This property was developed as a gasoline service station in 1965, with a first generation of underground storage tanks operating from that date until their removal sometime before 1984. A second generation of USTs was installed in 1984 and remained in service until removal in 2013. Cleanup was conducted under the Voluntary Cleanup Program, addressing benzene, non-halogenated solvents, and petroleum-gasoline constituents detected in groundwater. The site received a No Further Action determination following completion of cleanup activities documented in a 2011 Cleanup Action Report and confirmed by a 2014 NFA Opinion Letter. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address23419 Pacific Hwy S, Des Moines, King County
Historical UseGas Station
Est. Operating Since1965
StatusNo Further Action
Contamination & Investigation
Site Assessment Summary
ContaminantsBenzene, non-halogenated solvents, and petroleum-gasoline constituents detected in groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #5653

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.

Gasoline storage and dispensing operations at this property began in 1965 — more than two decades before occurrence-based Commercial General Liability policies gave way to claims-made forms with pollution exclusions. The groundwater contamination documented here — benzene, petroleum hydrocarbons, and non-halogenated solvents — traces to underground storage tanks that were in service during that pre-1986 window. The remediation costs incurred to achieve the site's No Further Action status may be recoverable from historical carriers whose CGL policies were in force when these releases first occurred.

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.