Bulk Plant cleanup site — Restorical Research
Samis Company
1523 1535 1541 15th Ave W, Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a bulk fuel distribution terminal going back to 1927. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This Seattle property operated as a large-scale bulk petroleum tank farm from approximately 1927 through the 1960s, with one 30,000-gallon and four 20,000-gallon aboveground storage tanks on site during that period. Storage tanks were removed in 1969, but contamination from those historical operations persists: petroleum free product was identified in groundwater as early as 1990, and passive free product recovery using absorbent tubes has been ongoing since October 1999. Conceptual remediation plans call for excavation of 1,000 to 2,000 cubic yards of contaminated soil and installation of a pump-and-treat groundwater system, with estimated costs of $500,000 to $1,000,000 over a two-to-five-year remediation window. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Bulk Plant
Address1523 1535 1541 15th Ave W, Seattle, King County
Historical UseBulk Plant
Est. Operating Since1927
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons and free product in soil and groundwater; tetraalkyl lead, EDB, and EDC from leaded gasoline operations potentially present
Media ImpactedSoil, Groundwater, Surface Water
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #4051

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.

Bulk petroleum storage at this property began in 1927 — nearly six decades before 1986 — and continued through an era when occurrence-based CGL policies carried no effective pollution exclusion. The contamination profile here includes petroleum free product still migrating in groundwater decades after tank removal, and investigators have recommended testing for tetraalkyl lead, EDB, and EDC given the likelihood of leaded-gasoline releases predating 1996. Historical carriers who issued CGL coverage during the long operational run of this bulk plant may be obligated to fund the substantial excavation and pump-and-treat costs that lie 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.