Gas Station cleanup site — Restorical Research
Wedgwood Shell
7347 35th Ave NE, Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station going back to 1968. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This property operated as a Shell-branded gasoline service station from approximately 1968 until 1986, with three gasoline underground storage tanks, two additional USTs for heating oil and waste oil, underground hydraulic hoists, and a sump. Cleanup under the Voluntary Cleanup Program has included excavation of all six USTs and associated contaminated soil — approximately 420 cubic yards disposed and 983 cubic yards mechanically screened and reused — along with over-excavation of the former hydraulic hoist and oil/water separator areas and granular activated carbon treatment of affected groundwater. The site remains in active cleanup with ongoing groundwater monitoring across seven of thirteen installed wells. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address7347 35th Ave NE, Seattle, King County
Historical UseGas Station
Est. Operating Since1968
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons and lead detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #6655

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 and lead contamination at this property originated from fueling infrastructure installed and operated from 1968 through the mid-1980s, squarely within the era when occurrence-based Commercial General Liability policies carried no effective pollution exclusion in Washington. The documented remediation expenditures — tank removal, large-scale soil excavation, groundwater treatment, and a monitoring network maintained since 2011 — represent costs already incurred to address releases tied directly to those pre-1986 operations, with further monitoring obligations ahead. Historical carriers who issued CGL policies to the station's operators during that window may be obligated both to recover past cleanup costs and to fund the remediation work still under way.

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.