Public Works cleanup site — Restorical Research
Mercer Island Fire Dept
Mercer Island, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a public works and maintenance facility predating 1986. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup.

This property served as the City of Mercer Island Fire Department's fueling facility, where a former underground storage tank left behind soil contamination and free product that persisted even after the site was initially designated as Reported Cleaned Up. The RCU designation proved premature — contamination above state standards remained within the former UST excavation, and groundwater at the site was never assessed. The site has since been reclassified into Washington's Standard Cleanup program and remains awaiting active remediation, with grants of $200,000 to $300,000 available to local governments to offset future cleanup costs. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Public Works
AddressMercer Island, King County
Historical UsePublic Works
Est. Operating SincePre-1986
StatusAwaiting Cleanup
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons and free product in soil within former UST excavation; groundwater not yet assessed
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #10407

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 prior Reported Cleaned Up designation — later reversed when soil contamination and free product were found still present and groundwater was left entirely unassessed — means the full extent of the release at this site remains unknown, and future remediation costs have not yet been quantified. That open groundwater question represents a liability whose scope is still uncharted. Occurrence-based CGL policies issued to the City of Mercer Island during the years this tank was in service may be enforceable against the remediation costs still ahead, because the contamination event giving rise to those costs occurred during their coverage period.

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.