Heating Oil Tank cleanup site — Restorical Research
Mercer Cleaning Village
2615 76th Ave SE & 7433 SE 27th St, Mercer Island, 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 1942. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This property was developed in 1942 as a single-family residence with oil-burner heating — indicating potential underground or aboveground heating oil storage — and transitioned to commercial use with a new building in 1961, with documented operations continuing through at least 1985. Cleanup activities under the Voluntary Cleanup Program include the removal of five underground storage tanks and associated soil and groundwater remediation at a nearby gas station, ongoing remediation for halogenated organics at two nearby dry cleaners, and ongoing asbestos abatement at the property. Work across this multi-parcel cleanup complex remains in progress. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Heating Oil Tank
Address2615 76th Ave SE & 7433 SE 27th St, Mercer Island, King County
Historical UseHeating Oil Tank
Est. Operating Since1942
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsAsbestos at the property (ongoing abatement); petroleum hydrocarbons from nearby UST releases in soil and groundwater; halogenated organics from nearby dry cleaning operations in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #12341

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 property's operational history runs from 1942 through at least 1985 — spanning the entire era in which occurrence-based Commercial General Liability policies carried no effective pollution exclusion in Washington. The documented remediation costs already incurred here — UST removals, soil and groundwater treatment — are the type of expenditure that historical carriers whose CGL policies covered operations during that window may be obligated to pay; and because asbestos abatement at the property is ongoing, those same policies may be called upon to fund the cleanup costs still accumulating today.

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.