Gas Station cleanup site — Restorical Research
East Hill AM/PM
10402 SE 256th St, Kent, 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 operations at this property and through 1986 could fund a cleanup — and recover costs already spent.

East Hill AM/PM operates as an active retail gasoline station — ARCO Facility No. 4228 — at 10402 SE 256th Street in Kent. Contamination at the site includes Gasoline Range Organics (GRO), BTEX compounds, and Total Lead detected in both soil and groundwater, with monitoring records extending back to April 1989. Remediation has proceeded under the Voluntary Cleanup Program across multiple years, including subsurface investigation and soil boring backfill, with a 2014 Annual Site Status Report confirming that cleanup remains ongoing. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address10402 SE 256th St, Kent, King County
Historical UseGas Station
Est. Operating SincePre-1986
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsGasoline Range Organics (GRO), BTEX compounds, and Total Lead detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #10284

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 detection of Total Lead in soil and groundwater at this active gasoline station is direct evidence that operations here predate 1986, when leaded fuel was still in commercial use and occurrence-based Commercial General Liability policies carried no effective pollution exclusion. The multi-year cleanup record — groundwater monitoring stretching back to 1989, subsurface investigation, and ongoing VCP participation — represents substantial expenditures already incurred that historical carriers may be obligated to reimburse. Those same carriers may also be required to fund the remediation work this site continues to generate, making pre-1986 CGL policy recovery potentially valuable for both past costs and ongoing obligations.

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.