Gas Station cleanup site — Restorical Research
Port of Seattle Terminal 37
Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station going back to 1975. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This property served as a motor fuel dispensing facility at Port of Seattle Terminal 37, with underground storage tanks installed as early as 1975 storing diesel, gasoline, and leaded gasoline. Cleanup under the Standard Cleanup program has included the removal of two USTs totaling 14,500 gallons of capacity, excavation and disposal of approximately 118 tons of contaminated soil, and closure in place of a 500-gallon used-oil tank. A multi-year groundwater monitoring program ran from at least 1993 through 1996, with semi-annual sampling to track subsurface conditions. 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 Since1975
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (diesel, gasoline, and leaded gasoline) from leaking USTs detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #9056

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 terminal originated from underground storage tanks installed in the mid-1970s — squarely within the era when occurrence-based Commercial General Liability policies carried no effective pollution exclusion in Washington. The documented remediation costs to date — tank removals, soil excavation and off-site disposal, tank closure, and years of groundwater monitoring — were incurred to address releases tied directly to those pre-1986 fueling operations. Because cleanup is ongoing, historical carriers who wrote CGL policies during the 1975–1986 operational window may be obligated both to recover past expenditures and to fund the remediation work still 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.