Gas Station cleanup site — Restorical Research
Rosario Resort
1400 Rosario Rd, Eastsound, San Juan County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station going back to 1961. Historical insurance policies issued during those prior operations and through 1986 could recover the cleanup costs already paid.

Five underground storage tanks — four gasoline and one diesel, with a combined capacity exceeding 11,000 gallons — were installed at this resort property between approximately 1961 and 1971. The tanks were removed in 1991 due to their age and replaced with a single compartmented 10,000-gallon tank; a site assessment conducted during removal found benzene, toluene, and xylene in pit water at concentrations exceeding maximum contaminant levels, and confirmed that groundwater beneath the property was affected. The site, located near Cascade Bay with the nearest tank within 40 feet of the high tide line, achieved No Further Action status under the Standard Cleanup program. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address1400 Rosario Rd, Eastsound, San Juan County
Historical UseGas Station
Est. Operating Since1961
StatusNo Further Action
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (gasoline, diesel) with benzene, toluene, and xylene (BTX) detected in groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #17018

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 petroleum contamination documented at this property originated from underground storage tanks that were installed and operated for roughly two to three decades before 1986, when occurrence-based Commercial General Liability policies carried no effective pollution exclusion. Benzene, toluene, and xylene released into groundwater from those aging tanks — in a tidally influenced zone near Cascade Bay — triggered investigation, tank removal, and remediation costs directly tied to that pre-1986 operational window. Historical carriers who provided CGL coverage during the 1961–1986 period may still be obligated to recover those documented cleanup expenditures.

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.