Gas Station cleanup site — Restorical Research
Unocal 3604 ROW
4101 Rucker Ave, Everett, Snohomish County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station going back to 1930. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup.

This property has operated as a fueling service station since the 1930s, with the site purchased and redeveloped by Unocal in 1953 and commercial fuel dispensing continuing through multiple generations of underground storage tanks storing gasoline, diesel, heating oil, and waste oil. Cleanup activities documented from at least 1988 through 1999 included removal of multiple generations of USTs, hydraulic lifts, pump islands, and conveyance systems, along with 2,040 tons and 540 cubic yards of petroleum-contaminated soil, and installation of a Permalon liner as an engineered barrier in 1993. The site re-entered a cleanup program in 2015, and active cleanup work remains pending. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address4101 Rucker Ave, Everett, Snohomish County
Historical UseGas Station
Est. Operating Since1930
StatusAwaiting Cleanup
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons from gasoline, diesel, heating oil, and waste oil detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #16894

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.

Fueling operations at this property began in the 1930s — more than fifty years before 1986, when occurrence-based Commercial General Liability policies were still the industry standard and carried no effective pollution exclusion. An orphan UST documented as predating a 1967 street widening confirms that contamination at this site traces to decades of pre-1986 fuel storage and dispensing across multiple generations of infrastructure. The cleanup costs still facing this property — remediation of the remaining contaminated soil and groundwater that triggered re-enrollment in 2015 — could plausibly be funded by historical carriers whose occurrence-based policies were in force when that contamination first originated.

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.