Gas Station cleanup site — Restorical Research
ARCO 5241
2202 S 320th St, Federal Way, 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 ARCO Facility No. 5241, a gasoline service station in Federal Way. Groundwater monitoring data spanning more than sixteen years — from 1999 through 2015 — documents persistent petroleum contamination including gasoline-range hydrocarbons (TPHg), BTEX compounds, MTBE, and light non-aqueous phase liquid (LNAPL) in multiple monitoring wells. The presence of total and dissolved lead in groundwater at concentrations exceeding MTCA Method A cleanup levels indicates releases of leaded gasoline, placing the contamination origin before the 1986 phaseout. Cleanup under the Voluntary Cleanup Program is ongoing. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address2202 S 320th St, Federal Way, King County
Historical UseGas Station
Est. Operating SincePre-1986
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (TPHg, BTEX), MTBE, and lead detected in groundwater, with free-phase liquid hydrocarbons (LNAPL) present in monitoring wells
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #6171

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.

Lead contamination in groundwater confirms that petroleum releases at this station began during the era of leaded gasoline — well before 1986, when occurrence-based Commercial General Liability policies were standard and carried no effective pollution exclusion in Washington. More than sixteen years of documented groundwater monitoring, LNAPL management, and remediation at the site represent substantial cleanup expenditures tied directly to those pre-1986 operations. Historical carriers who issued CGL policies during that window may be obligated both to reimburse costs already incurred 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.