Bulk Plant cleanup site — Restorical Research
Port of Walla Walla Burbank Facility
Burbank, Walla Walla County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a bulk fuel distribution terminal going back to 1950. Historical insurance policies issued during operations at this property and through 1986 could fund a cleanup — and recover costs already spent.

This site encompasses two underground fuel product pipelines constructed in 1950 to transport unleaded gasoline, diesel, and jet fuel across the property. Chevron Pipeline Company operated the pipelines from construction until June 2013, when Tesoro Logistics Operations LLC acquired the asset. A significant diesel fuel release from the pipeline is the primary contamination event at the site, and remediation under the Voluntary Cleanup Program has included soil vapor extraction, air sparging, recovery of spilled diesel, natural attenuation monitoring, and pilot testing of additional remedial measures. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Bulk Plant
AddressBurbank, Walla Walla County
Historical UseBulk Plant
Est. Operating Since1950
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (diesel fuel and gasoline) from underground pipeline release detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #310

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 fuel transport pipelines at this site were constructed and placed into active commercial service in 1950 — more than three decades before the 1986 threshold after which occurrence-based Commercial General Liability policies began incorporating effective pollution exclusions. Contamination here is tied directly to those longstanding pipeline operations, meaning any release or gradual migration occurring during the pre-1986 operational window falls within the coverage period of policies issued to Chevron Pipeline Company during that era. The documented costs of soil vapor extraction, air sparging, and multi-phase remedial investigation represent expenditures that historical CGL carriers may be obligated both to recover and to fund going forward.

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.