Gas Station cleanup site — Restorical Research
Bellevue at Main
10335 Main St, Bellevue, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station going back to 1963. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This property was operated as an Amoco gasoline service station from approximately 1963 to 1974 on the corner of Bellevue Way SE and Main Street, and also served as a dry cleaning facility — both identified as primary sources of contamination. Cleanup under the Voluntary Cleanup Program has included soil excavation to depths of 34 feet, removal of multiple underground storage tanks (ranging from 200 to 500 gallons in capacity) and vehicle hoists, and in-situ chemical oxidation delivered through 31 injection wells. A groundwater pump-and-treat system with carbon treatment, a sub-slab venting system with vapor barrier, and institutional controls are in place and remain ongoing. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address10335 Main St, Bellevue, King County
Historical UseGas Station
Est. Operating Since1963
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons including non-aqueous phase petroleum (NAPL) from former gasoline station operations, and contaminants from a former dry cleaning operation, detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #2172

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.

Petroleum contamination at this property — including non-aqueous phase petroleum found in shallow groundwater — traces directly to gasoline station and automotive service operations that ran from approximately 1963, more than two decades before 1986 when occurrence-based CGL policies still lacked any effective pollution exclusion in Washington. The active remediation systems in place today — chemical oxidation, pump-and-treat, vapor controls, and institutional controls — represent both costs already incurred and expenditures that will continue to accrue. Historical carriers who issued CGL policies during the Amoco station's operational window may be obligated to recover past cleanup costs and to fund the remediation that remains underway.

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.