Gas Station cleanup site — Restorical Research
Shell 120599
13201 SE 272nd St, Kent, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station going back to 1936. 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 service station from at least 1936 through 2006, housing underground storage tanks for gasoline, diesel, waste oil, and heating oil across two generations of tank installations. The original six USTs were replaced in 1987, and the station was decommissioned in 2006. Cleanup activities under the Voluntary Cleanup Program have spanned from 1993 to at least 2008, including multiple soil excavations, UST removal, installation of a soil vapor extraction system, and an enhanced bioremediation program with injection events conducted between 2002 and 2003. Groundwater monitoring continued from 2007 through at least 2013, and cleanup work 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
Address13201 SE 272nd St, Kent, King County
Historical UseGas Station
Est. Operating Since1936
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsGasoline and diesel range petroleum hydrocarbons and lead detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #6471

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.

Petroleum and lead contamination at this site originated from underground storage tanks and fueling infrastructure that were installed and operated for five decades before 1986 — a period when occurrence-based Commercial General Liability policies carried no effective pollution exclusion in Washington. The presence of lead in soil and groundwater independently confirms pre-1986 operations, since leaded gasoline was phased out during that era. Documented remediation expenditures spanning more than two decades — excavation, tank removal, vapor extraction, bioremediation, and long-term monitoring — represent costs that historical carriers may be obligated both to recover and to fund as cleanup continues.

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.