Gas Station cleanup site — Restorical Research
Palmer Building
Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station going back to 1929. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup.

The Palmer Building property in Seattle has a documented operational history dating to at least 1907, with a UST installation permit on record from 1929 and a 1952 City of Seattle drawing confirming a gas pump on the east side of the building near the loading dock. Oil and diesel contamination has been confirmed in soil and groundwater, with gasoline also present in an underground storage tank first identified in 1998. No remedial actions — excavation, groundwater treatment, or otherwise — have been undertaken, and the property owner has not yet taken action to address the contamination. 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 Since1929
StatusAwaiting Cleanup
Contamination & Investigation
Site Assessment Summary
ContaminantsOil, diesel, and gasoline detected in soil and groundwater
Media ImpactedGroundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #12486

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.

Fuel dispensing operations at the Palmer Building trace to at least 1929, when a UST installation permit was issued — more than five decades before 1986, when occurrence-based CGL policies stopped reliably covering pollution claims. The oil, diesel, and gasoline contamination documented in soil and groundwater here is the direct product of those long-running pre-1986 operations. The investigation and cleanup costs the property owner now faces — remedial design, soil treatment, and groundwater remediation — represent expenditures that historical carriers whose CGL policies were in force during the decades of fuel operations may be obligated to fund.

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.