Gas Station cleanup site — Restorical Research
Boat Street Marina
1401 Boat St, Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station going back to 1920. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

The Boat Street Marina has operated as a waterfront fueling facility since the 1920s, providing on-water fueling services from a floating marina building equipped with a pump and supported by three confirmed 2,000-gallon underground storage tanks. Petroleum contamination attributed to leakage from those USTs and associated fuel lines prompted a University of Washington-led cleanup under the Voluntary Cleanup Program, which included a 2007 excavation and removal of a source pipe, soil and groundwater sampling, and monitoring well installation. A final cleanup report has been drafted. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address1401 Boat St, Seattle, King County
Historical UseGas Station
Est. Operating Since1920
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons from leaking underground storage tanks (USTs) and fuel supply lines detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #400

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.

The petroleum releases at this site trace to underground storage tanks and fuel supply lines that were in active service for decades before 1986, when occurrence-based Commercial General Liability policies still carried no effective pollution exclusion. The documented remediation trail — source-pipe excavation, UST-related soil investigation, groundwater sampling, and long-term monitoring — represents costs tied directly to those pre-1986 operations, and cleanup work remains ongoing. Historical CGL carriers who insured the marina or its fuel-dispensing operations during that extended pre-1986 window may be obligated both to recover expenditures already incurred and to fund the 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.

Ready to learn more?

Contact Us

This analysis is preliminary and based on publicly available records. Restorical Research is not a law firm and does not provide legal advice.