Heating Oil Tank cleanup site — Restorical Research
Sager Property
Tacoma, Pierce County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a property with a heating oil tank predating 1986. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup.

This residential property in Tacoma contains an above-ground heating oil storage tank in the basement that was identified as the source of a petroleum release, likely caused by an overfill. Soil contamination with diesel-range hydrocarbons was confirmed in the area below the basement associated with the tank. Separately, methamphetamine contamination was identified on the property in 2004 and remediation for that release was conducted through 2005; petroleum contamination from the heating oil tank remains unaddressed, and the site is currently awaiting cleanup. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Heating Oil Tank
AddressTacoma, Pierce County
Historical UseHeating Oil Tank
Est. Operating SincePre-1986
StatusAwaiting Cleanup
Contamination & Investigation
Site Assessment Summary
ContaminantsDiesel-range petroleum hydrocarbons (heating oil) from above-ground storage tank overfill detected in soil; methamphetamine contamination also identified and remediated 2004–2005
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #468

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 petroleum contamination here originated from an in-basement heating oil system — the type of above-ground storage tank characteristic of properties built and operated well before 1986, when occurrence-based CGL policies carried no effective pollution exclusion. The release, attributed to an overfill of that tank, is exactly the kind of slow, ongoing release those pre-1986 policies were written to cover. With petroleum remediation costs yet to be incurred, historical carriers whose policies were in force during the decades of heating oil operations may be obligated to fund the cleanup 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.