Heating Oil Tank cleanup site — Restorical Research
Wiggen & Sons Funeral Home
2003 NW 57th St, Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a property with a heating oil tank going back to 1946. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This property was developed as a commercial mortuary in 1946 and relied on an approximately 500-gallon underground storage tank to supply heating oil for the building. A release from that UST impacted soil and groundwater at the site, prompting voluntary cleanup work that included excavation of approximately 26,270 tons of soil — with 3,762.4 tons of impacted material disposed off-site to an average depth of 24 feet — removal of the UST along with roughly 300 gallons of residual heating oil, extraction of DRO-impacted groundwater by excavation, and decommissioning of four groundwater monitoring wells. Cleanup under the Voluntary Cleanup Program is ongoing. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Heating Oil Tank
Address2003 NW 57th St, Seattle, King County
Historical UseHeating Oil Tank
Est. Operating Since1946
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsDiesel range organics (DRO) from heating oil UST release detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #13187

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 release at this property originated from a UST serving a mortuary that had been in operation since 1946, with the tank documented in service since the 1970s — well before 1986, when occurrence-based Commercial General Liability policies were the industry standard and carried no effective pollution exclusion in Washington. The remediation record here is substantial: tens of thousands of tons of excavated soil, UST removal, groundwater recovery, and continued cleanup obligations that remain unresolved. Historical carriers who issued CGL policies to the property operator during that pre-1986 window may be obligated both to recover those incurred costs and to fund the work that still lies 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.

Ready to learn more?

Contact Us

This analysis is preliminary and based on publicly available records. Restorical Research is not a law firm and does not provide legal advice.