Gas Station cleanup site — Restorical Research
Tesoro 62162 2006
2324 State Rd 530, Arlington, Snohomish 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 operations at this property and through 1986 could fund a cleanup — and recover costs already spent.

This property has operated as a retail gasoline station since the 1960s, equipped with fuel-dispensing pump islands and multiple underground storage tanks for gasoline and diesel. Nine former USTs were removed in 1989, and cleanup under the Voluntary Cleanup Program has continued for over three decades — including a groundwater extraction and reinfiltration system from 1992 to 1996, quarterly groundwater monitoring since 2001, installation of an air sparge and soil-vapor extraction system in 2007, activated carbon injections in 2018 and 2019, and planned in-situ chemical oxidation injections. The station remains in active commercial operation today with a convenience store, four current USTs, and eight fuel-dispensing pump islands. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address2324 State Rd 530, Arlington, Snohomish County
Historical UseGas Station
Est. Operating Since1960
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (GRPH, DRPH, ORPH, BTEX) and total lead detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #7322

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.

Petroleum contamination at this site originated from underground storage tanks installed and operated throughout the 1960s, 1970s, and early 1980s — years when occurrence-based Commercial General Liability policies carried no effective pollution exclusion in Washington. The detection of total lead among the contaminants of concern points directly to the era of leaded gasoline, reinforcing that the releases predate 1986. More than thirty years of documented remediation expenditures — tank removals, groundwater treatment systems, vapor extraction, carbon and chemical injections, and ongoing monitoring — represent costs that historical carriers may be obligated both to reimburse and to fund as cleanup continues.

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.