Bulk Plant cleanup site — Restorical Research
POT Basin A W Sitcum Stormwater Treatment Construction
update, Pierce 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.

This Port of Tacoma property sits on fill material dating to the late 1800s and early 1900s, and the area has been in industrial and transportation use throughout that span. In 2018–2019, excavation for a stormwater line uncovered non-aqueous phase liquid (NAPL) and contaminated groundwater, with diesel concentrations measured at 49,800,000 µg/L — nearly 100,000 times the MTCA Method A cleanup screening level of 500 µg/L — and oil NAPL at levels similarly far exceeding cleanup thresholds. A water treatment system was installed and dewatering conducted, but treated groundwater continued to test above diesel cleanup levels; no soil remediation has been reported. The property is currently in active use as a container loading and unloading yard. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Bulk Plant
Addressupdate, Pierce County
Historical UseBulk Plant
Est. Operating SincePre-1986
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsDiesel and oil as non-aqueous phase liquid (NAPL) detected in groundwater at concentrations far exceeding MTCA Method A cleanup levels
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #14950

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 oil NAPL uncovered during excavation reflects pre-existing contamination consistent with historical bulk petroleum handling at this Port of Tacoma site, in an area developed for industrial use since the late nineteenth century — not the result of a recent, isolated spill. Occurrence-based Commercial General Liability policies issued to the operators of bulk fuel facilities here before 1986 carried no effective pollution exclusion, meaning the contamination that triggered the current treatment and dewatering costs almost certainly originated during that coverage window. Historical carriers whose policies were in force during those decades of port operations may be obligated to recover the remediation expenditures already incurred and to fund the cleanup work that remains 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.