Gas Station cleanup site — Restorical Research
Chevron 99481
647 140th Ave NE, Bellevue, King County
Restorical Research
Preliminary Site-Specific Analysis

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

This Bellevue property operated as Chevron Service Station 9-9481, with five fiberglass underground storage tanks — three 10,000-gallon gasoline tanks, a 500-gallon fuel oil tank, and a 500-gallon used oil tank — removed in January 1989. Excavation during tank removal revealed a former basement structure backfilled with soil, indicating the facility had been in place for a considerable period. Petroleum hydrocarbons, benzene, and non-halogenated solvents were detected in groundwater, and the site underwent remediation through the Voluntary Cleanup Program before receiving a No Further Action determination. The property was redeveloped as a Walgreens by 1996. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address647 140th Ave NE, Bellevue, King County
Historical UseGas Station
Est. Operating SincePre-1986
StatusNo Further Action
Contamination & Investigation
Site Assessment Summary
ContaminantsBenzene, petroleum hydrocarbons (gasoline and diesel range), and non-halogenated solvents detected in groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #6213

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 and solvent contamination in groundwater at this former service station originated from underground storage tanks whose removal in 1989 — and the discovery of long-standing subsurface infrastructure during that removal — point to operations well predating 1986. Occurrence-based CGL policies issued to Chevron or prior operators during that pre-1986 window carried no effective pollution exclusion and remain enforceable in Washington. The documented remediation expenditures incurred to bring this site to No Further Action status represent costs that historical carriers who covered those earlier operations may still 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.