Gas Station cleanup site — Restorical Research
Southtowne Auto Rebuild
Tukwila, 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 formerly operated as a gasoline service station with a live-in residence, with three underground storage tanks used for fuel storage on-site. Remediation began in 1996 with UST removal and a first phase of soil excavation (25 cubic yards); a second excavation phase in 1998 removed 326 tons of impacted soil, and a vapor extraction system well was installed. Gasoline and BTEX concentrations were found significantly above MTCA cleanup standards throughout the excavation walls and floor, and further cleanup action remains required. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
AddressTukwila, King County
Historical UseGas Station
Est. Operating SincePre-1986
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsGasoline and BTEX (benzene, toluene, ethylbenzene, xylenes) from leaking USTs detected in soil
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #10230

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 gasoline and BTEX contamination at this site originated from underground storage tanks whose installation predates 1986 — the period when occurrence-based Commercial General Liability policies carried no effective pollution exclusion in Washington. The documented remediation costs to date — three UST removals, two rounds of soil excavation totaling hundreds of tons, and vapor extraction infrastructure — represent expenditures tied directly to those pre-1986 operations. Because cleanup is still ongoing, historical carriers whose policies were in force when the tanks were installed and operating may be obligated both to recover past costs and to fund the work still ahead.

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.