Gas Station cleanup site — Restorical Research
Circle K 1461
2350 24th Ave E, 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 Circle K gasoline service station from 1968 to 1990, with four gasoline underground storage tanks, a waste oil UST, a heating oil UST, and a pump island on site. Following a tank leak discovered in 1989, cleanup under the Standard Cleanup program has included excavation of over 900 cubic yards of contaminated soil, UST removal, groundwater treatment through product recovery, enhanced fluid recovery, in-situ chemical injection, and bioremediation, as well as soil vapor extraction and long-term groundwater monitoring. Cleanup work is ongoing. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address2350 24th Ave E, Seattle, King County
Historical UseGas Station
Est. Operating Since1968
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsGasoline-range organics and BTEX compounds from leaking USTs detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #5089

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.

Gasoline-range organics and BTEX contamination at this site originated from underground storage tanks that were installed and operated continuously from 1968 — eighteen years before occurrence-based CGL policies gave way to claims-made forms with absolute pollution exclusions. The documented remediation expenditures, including large-scale soil excavation, multiple groundwater treatment technologies, vapor extraction, and years of monitoring, represent costs that historical carriers who issued policies during that 1968–1986 window may be obligated to reimburse and to fund through the completion of cleanup.

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.