Bulk Plant cleanup site — Restorical Research
Union Pacific RR S Dawson TOFC Terminal
402 S Dawson St, Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a bulk fuel distribution terminal predating 1986. Historical insurance policies issued during operations at this property and through 1986 could fund a cleanup — and recover costs already spent.

The Union Pacific RR S Dawson TOFC Terminal is part of the Argo Railyard in Seattle, where two underground storage tanks — a 10,000-gallon diesel UST and a 4,000-gallon gasoline UST — were used to fuel internal railroad operations before both were removed in April 1990. Cleanup included the excavation and off-site disposal of 540 tons of petroleum-impacted soil in 1991, installation of six groundwater monitoring wells between 1990 and 1991, and ongoing groundwater sampling documented through at least 1992, 1997, and 1998. The terminal remains in active operation as part of the Argo Railyard. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Bulk Plant
Address402 S Dawson St, Seattle, King County
Historical UseBulk Plant
Est. Operating SincePre-1986
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (diesel and gasoline) from USTs detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #10378

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 diesel and gasoline contamination at this site traces to underground storage tanks that were installed and in service well before 1986 — the operational era when occurrence-based CGL policies carried no effective pollution exclusion. The documented remediation trail here — UST removals, removal of 540 tons of impacted soil, installation of monitoring infrastructure, and multi-year groundwater sampling — represents expenditures directly tied to those pre-1986 bulk fuel operations. Historical carriers who issued CGL policies to Union Pacific or its predecessors during that window may still bear liability for the costs already incurred and any monitoring obligations that remain.

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.