Gas Station cleanup site — Restorical Research
Silver Lake Convenience Store
1816 112th Ave SE, Everett, Snohomish County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station predating 1986. Historical insurance policies issued during operations at this property and through 1986 could fund a cleanup — and recover costs already spent.

This property operated as a Shell-branded gasoline service station before transitioning to its current use as a 76-branded gasoline station, with three gasoline underground storage tanks and one diesel UST on site. Groundwater monitoring data from as early as July 1989 revealed severe petroleum hydrocarbon contamination — benzene concentrations reaching 41,000 µg/L and 6,300 µg/L in on-site monitoring wells — indicating releases from operations well predating those measurements. Cleanup under the Voluntary Cleanup Program has included UST removals, ongoing groundwater monitoring, and the progressive decommissioning of monitoring wells over multiple years as remediation continues. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address1816 112th Ave SE, Everett, Snohomish County
Historical UseGas Station
Est. Operating SincePre-1986
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (benzene, BTEX) from leaking USTs detected in groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #5596

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 scale of petroleum contamination documented at this site by 1989 points to releases originating during prior decades of fueling operations, when occurrence-based Commercial General Liability policies carried no effective pollution exclusion in Washington. The multi-year remediation effort — tank removals, long-term groundwater monitoring, well decommissioning, and waste disposal — represents a substantial and still-growing cost trail tied directly to those pre-1986 operations. Historical carriers who issued CGL policies to the station's operators during that window may be obligated both to recover past cleanup expenditures and to fund the remediation work that remains.

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.