Gas Station cleanup site — Restorical Research
Shemiram Trade
Seattle, 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 fund a cleanup.

This property operated as a gasoline service station with underground storage tanks and a pump island, with the release of petroleum contamination characterized in a 1999 report as "relatively old" based on the absence of benzene and toluene — indicating significant degradation consistent with pre-1986 operations. A report documented that petroleum products were removed from the USTs, but no official remediation records are available, and the gasoline USTs appear to remain underground at the site. The property is currently in use as a parking lot, and cleanup status remains at the awaiting-cleanup stage under Ecology's Standard Cleanup program. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
AddressSeattle, King County
Historical UseGas Station
Est. Operating SincePre-1986
StatusAwaiting Cleanup
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons from leaking gasoline USTs in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #5495

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 former service station originated from gasoline storage and dispensing operations that predate 1986, when occurrence-based Commercial General Liability policies carried no effective pollution exclusion in Washington. The site now faces a full cleanup obligation — investigation, remediation design, and active remediation — with no documented offset from prior cleanup work. Historical carriers who issued CGL policies during the station's pre-1986 operational window may be obligated to fund these upcoming cleanup costs, which for petroleum-contaminated sites with USTs still in the ground can be substantial.

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.