Gas Station cleanup site — Restorical Research
Twin Peaks Equipment
Redmond, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station going back to 1986. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This property operated as the Super Rents Fuel Station from 1986 until November 1999, with three underground storage tanks dispensing kerosene, unleaded gasoline, and diesel from a four-pump fueling island. Cleanup has included removal of the three USTs, excavation and on-site bioremediation of approximately 300 cubic yards of petroleum-impacted soil, passive recovery of light non-aqueous phase liquid (LNAPL) since at least 2003, and ongoing groundwater monitoring. As of the most recent reporting period, approximately 2,100 milliliters of LNAPL had been recovered, and a soil vapor extraction system was planned for installation. Cleanup work remains ongoing. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
AddressRedmond, King County
Historical UseGas Station
Est. Operating Since1986
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (gasoline, diesel, kerosene) and light non-aqueous phase liquid (LNAPL) detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #9794

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 fueling station began operating in 1986, the same year the insurance industry transitioned away from occurrence-based Commercial General Liability policies that had no effective pollution exclusion. CGL policies issued to the operator at the start of that fueling operation may still have been written on an occurrence basis, covering the slow petroleum releases from underground storage tanks that contaminated soil and groundwater over the station's thirteen years of operation. The documented remediation expenditures — tank removals, soil excavation, LNAPL recovery, long-term monitoring, and planned vapor extraction — represent costs that historical carriers may be obligated both to recover and to fund going forward.

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.