Gas Station cleanup site — Restorical Research
Ostergard Property
1119 NW 46th St, Seattle, King 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 those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This property operated as a gasoline station dispensing leaded fuel, as evidenced by lead detected in groundwater alongside gasoline range organics, benzene, toluene, and naphthalene — a contamination profile consistent with pre-1986 fuel operations. The site is currently enrolled in Washington's Voluntary Cleanup Program, with quarterly groundwater monitoring underway and residual gasoline contamination persisting in the vicinity of monitoring well PSI MW-5. Cleanup activities to date have included pumping standing water from well vaults and disposing of 55 gallons of purged groundwater. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address1119 NW 46th St, Seattle, King County
Historical UseGas Station
Est. Operating SincePre-1986
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsGasoline Range Organics (GRO), benzene, toluene, naphthalene, and lead detected in groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #16757

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 lead detected in groundwater here is a direct indicator that this site dispensed leaded gasoline, which was phased out before 1986 — placing the originating operations squarely within the era when occurrence-based Commercial General Liability policies carried no effective pollution exclusion. With residual contamination persisting and quarterly monitoring ongoing, the remediation cost trail is open-ended: historical carriers whose CGL policies covered this property during the leaded-gasoline era may be obligated both to fund continued cleanup and to recover costs already incurred.

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.