Bulk Plant cleanup site — Restorical Research
Evergreen Marine Leasing Parcel E
7343 E Marginal Way S, Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a bulk fuel distribution terminal going back to 1916. Historical insurance policies issued during those prior operations and through 1986 could recover the cleanup costs already paid.

This property served as a petroleum bulk storage and distribution site from 1916 through 1976, operated first by Associated Oil and later by Tidewater Oil Company, which maintained gasoline tanks, an office, and oil distribution facilities on the parcel. Three underground storage tanks were removed in the early 1980s, and subsequent investigation confirmed petroleum hydrocarbon contamination in soil and groundwater. A multi-year groundwater monitoring program ran from 1996 to 1998, after which monitoring wells were abandoned and the site received a No Further Action determination, though a restrictive covenant remains in place due to residual petroleum-impacted soil exceeding cleanup levels. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Bulk Plant
Address7343 E Marginal Way S, Seattle, King County
Historical UseBulk Plant
Est. Operating Since1916
StatusNo Further Action
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (TPH-D, gasoline, kerosene, diesel, Bunker C, Fuel Oil #2) in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #5109

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.

Sixty years of petroleum bulk storage and distribution — from 1916 through 1976 — means this parcel was continuously insured under occurrence-based CGL policies for the entire era before pollution exclusions took hold. The documented remediation costs here — tank removal, soil investigation, three years of groundwater monitoring, and the institutional controls still encumbering the property — trace directly to releases from operations that Associated Oil and Tidewater Oil Company conducted under those policies. Historical carriers on the risk during that six-decade window may bear obligation for costs already incurred and for the residual contamination the restrictive covenant memorializes.

Restorical's role is to locate viable historical policies, determine whether a successful cost recovery claim is possible, and assist our clients and their legal counsel to obtain insurance coverage for costs already incurred. Restorical's forensic accounting team works to re-establish and document past cleanup expenditures, ensuring the strongest possible basis for recovery.

Recovering Costs from an Older Cleanup

If this site reached No Further Action years ago, the original cleanup expenditures may be difficult to reconstruct. Restorical's forensic accounting team specializes in re-establishing and documenting past cleanup costs — even decades later — to build the strongest possible basis for an insurance recovery claim.

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 — Cost Recovery
When Task 1 confirms viable coverage, Restorical works with your legal counsel to tender the claim and negotiate recovery of costs already incurred. Restorical's forensic accounting team re-establishes and documents past cleanup expenditures, managing the claim process to ensure the insurance companies fulfill their obligation 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.