Gas Station cleanup site — Restorical Research
UNOCAL 6381
8001 15th Ave NE 8014 Lake City Way, Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station going back to 1963. Historical insurance policies issued during operations at this property and through 1986 could fund a cleanup — and recover costs already spent.

This property has operated as a gasoline service station since 1963, initially with underground steel storage tanks that were replaced with fiberglass tanks in 1985. Contamination was discovered in January 1990, prompting excavation and removal of three underground storage tanks, associated product lines, service islands, hydraulic lifts, and the former service station building, with approximately 500 cubic yards of contaminated soil removed and aerated on site. Extensive groundwater monitoring and sampling has been conducted from at least 1992 through 2007 and remains ongoing under the Voluntary Cleanup Program. The property continues in active use as a service station, now operated under the Chevron brand. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address8001 15th Ave NE 8014 Lake City Way, Seattle, King County
Historical UseGas Station
Est. Operating Since1963
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons from leaking underground storage tanks detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #6857

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 site originated from underground steel storage tanks installed and operated beginning in 1963 — more than two decades before occurrence-based Commercial General Liability policies gave way to claims-made forms with pollution exclusions. The documented remediation costs here — tank removal, large-scale soil excavation, and over fifteen years of groundwater monitoring — were incurred to address releases tied directly to those pre-1986 fueling operations. Historical carriers who issued CGL policies to the operators during that window may be obligated both to recover past cleanup expenditures and to fund the ongoing monitoring work that remains ahead.

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.