Gas Station cleanup site — Restorical Research
East West Investments
700 718 6th Ave S, Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station going back to 1919. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

A gasoline service station operated on the northwestern portion of this property from approximately 1919 to 1946, and a hotel with a 500-gallon heating oil underground storage tank occupied the site from 1914 to 1973. Cleanup activities have included removal of the heating oil tank, soil excavation in at least five areas with landfarming of impacted material onsite, and installation of a bioventing system that operated from October 1997 through October 1998. Groundwater monitoring with multiple well installations began in 1996, and the site enrolled in the Voluntary Cleanup Program in 1999 with recommendations for further groundwater treatment and continued monitoring. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address700 718 6th Ave S, Seattle, King County
Historical UseGas Station
Est. Operating Since1919
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsGasoline-range petroleum hydrocarbons (BTEX) and free product detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #6496

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 free product, gasoline-range hydrocarbons, and BTEX compounds — traces directly to underground storage tank operations that began more than six decades before 1986. Occurrence-based CGL policies issued to the station and hotel operators during those pre-1986 decades carried no effective pollution exclusion under Washington law. The documented remediation costs already incurred — tank removal, multi-area excavation, bioventing, and years of groundwater monitoring — along with the further treatment still recommended, represent expenditures that historical carriers may be obligated both to reimburse and to fund going forward.

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.