Heating Oil Tank cleanup site — Restorical Research
7-Eleven Store McKinley
5602 McKinley Ave, Tacoma, Pierce County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a property with a heating oil tank going back to 1970. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This property at 5602 McKinley Avenue in Tacoma served as a residence during the 1970s and 1980s, with a heating oil underground storage tank installed during that period. Multiple USTs were documented at the site by the Tacoma-Pierce County Health Department and Ecology, with several decommissioned in the early 1990s; an additional heating oil UST was discovered in January 2013. Investigations have confirmed petroleum-diesel contamination in both soil and groundwater from the heating oil tank release, and a 2014 Initial Investigation Field Report determined that groundwater contamination had not been sufficiently addressed. Cleanup is underway under the Standard Cleanup program. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Heating Oil Tank
Address5602 McKinley Ave, Tacoma, Pierce County
Historical UseHeating Oil Tank
Est. Operating Since1970
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (diesel-range) from heating oil tank release detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #17446

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 heating oil tanks at this property were installed during the 1970s or earlier — well within the era when occurrence-based Commercial General Liability policies were standard and carried no effective pollution exclusion. The petroleum contamination now confirmed in soil and groundwater traces directly to those pre-1986 tank operations. With cleanup underway and remediation costs continuing to accrue, historical carriers who covered the property during the residential-use period may be obligated both to reimburse costs already incurred and to fund the remaining cleanup work.

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.