Gas Station cleanup site — Restorical Research
Bothell Riverside HVOC
NE 180th St & Woodinville Dr, Bothell, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station going back to 1946. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This property operated as a "Flying A" gasoline service station from 1946 through the early 1960s, with at least two 1,000-gallon underground storage tanks holding gasoline and diesel fuel. Investigative work in the early 1990s confirmed residual soil and groundwater contamination attributed to those service station operations, and an Agreed Order was initiated in 2009 to govern ongoing remediation. Cleanup has included two phases of soil excavation in 2010 and 2017 totaling more than 3,400 tons and 610 cubic yards — much of it processed with thermal desorption — along with a pump-and-treat system using six extraction wells installed in 2014 that has pumped approximately 9 million gallons of HVOC-contaminated groundwater to date. Halogenated volatile organic compound contamination is also present at the site, originating from an upgradient dry cleaning operation rather than the service station. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
AddressNE 180th St & Woodinville Dr, Bothell, King County
Historical UseGas Station
Est. Operating Since1946
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (TPH) from leaking USTs detected in soil and groundwater, and halogenated volatile organic compounds (HVOCs) from an upgradient dry cleaner detected in groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #14970

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 hydrocarbon contamination at this property traces to underground storage tank operations that began in 1946 — four decades before 1986, when occurrence-based Commercial General Liability policies were still the industry standard and carried no effective pollution exclusion. Carriers who issued CGL policies to the Flying A service station operators during that pre-1986 window may retain obligations tied to the contamination those operations caused. The remediation record here — soil excavation exceeding 3,400 tons, thermal desorption treatment, and a pump-and-treat system that has processed millions of gallons of affected groundwater — documents both the expenditures already made and the ongoing costs those historical carriers may be obligated to fund.

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.