Bulk Plant cleanup site — Restorical Research
3400 Stone
3400 Stone Way 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 1938. Historical insurance policies issued during those prior operations and through 1986 could recover the cleanup costs already paid.

This property operated as a commercial heating oil distribution facility from the late 1930s through the early 1990s, with underground storage tanks for heating oil, gasoline, and waste oil, plus a bulk loading rack. Cleanup activities under the Voluntary Cleanup Program included the removal of at least eight USTs between 1988 and 2013, off-site transport of approximately 36,230 tons of excavated soil, and groundwater treatment through free product recovery, excavation dewatering, and installation of a footing drain system for ongoing capture and discharge. The site has achieved No Further Action status. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Bulk Plant
Address3400 Stone Way N, Seattle, King County
Historical UseBulk Plant
Est. Operating Since1938
StatusNo Further Action
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (heating oil, gasoline, and waste oil) from leaking USTs detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #11794

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 releases at this property trace to a bulk storage and distribution operation that began in the late 1930s and remained active for decades before 1986 — the year occurrence-based Commercial General Liability policies stopped reliably covering pollution claims. Releases were documented as early as the early 1980s, placing the contamination origin squarely within the coverage window of pre-1986 CGL policies issued to operators at this site. The documented remediation record — eight tank removals, more than 36,000 tons of impacted soil excavated, and multi-phase groundwater recovery — represents substantial costs that historical carriers may be obligated to recover.

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.