Gas Station cleanup site — Restorical Research
Cascade Retail Center
Renton, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station going back to 1960. Historical insurance policies issued during those prior operations and through 1986 could recover the cleanup costs already paid.

This property operated as a Texaco gasoline service station from the 1960s through the 1980s, with underground storage tanks, associated piping, and fuel dispensers in active use throughout that period. Voluntary Cleanup Program remediation included excavation and thermal desorption treatment of approximately 1,201 tons of gasoline-impacted soil, decommissioning of a 1,000-gallon heating oil UST with removal of 17.75 tons of heating-oil-impacted soil, and off-site disposal of approximately 1,500 gallons of petroleum-affected groundwater. Post-remediation groundwater monitoring over four consecutive quarters beginning in 2005 supported the No Further Action determination. The property is now occupied by a Domino's Pizza store. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
AddressRenton, King County
Historical UseGas Station
Est. Operating Since1960
StatusNo Further Action
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (gasoline, TPH) and heating oil from former USTs detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #2396

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.

Texaco's fuel dispensing and underground storage operations at this site ran from the 1960s into the 1980s — years when occurrence-based CGL policies covered the brand's franchisees and had not yet been revised to exclude pollution claims. The gasoline and heating oil contamination documented here originated from USTs in continuous use during that insured window, not from any post-1986 incident. The documented remediation costs — more than 1,200 tons of thermally treated soil, a decommissioned heating oil tank, and recovered petroleum-laden groundwater — represent expenditures that historical carriers who insured those Texaco-era operations may be obligated to fund.

Restorical's role is to locate viable historical policies, determine whether a successful cost recovery claim is possible, and assist our clients and their legal counsel to obtain insurance coverage for costs already incurred. Restorical's forensic accounting team works to re-establish and document past cleanup expenditures, ensuring the strongest possible basis for recovery.

Recovering Costs from an Older Cleanup

If this site reached No Further Action years ago, the original cleanup expenditures may be difficult to reconstruct. Restorical's forensic accounting team specializes in re-establishing and documenting past cleanup costs — even decades later — to build the strongest possible basis for an insurance recovery claim.

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 — Cost Recovery
When Task 1 confirms viable coverage, Restorical works with your legal counsel to tender the claim and negotiate recovery of costs already incurred. Restorical's forensic accounting team re-establishes and documents past cleanup expenditures, managing the claim process to ensure the insurance companies fulfill their obligation 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.