Gas Station cleanup site — Restorical Research
Shell 120598
13138 Interurban Ave S, Tukwila, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station going back to 1969. Historical insurance policies issued during operations at this property and through 1986 could fund a cleanup — and recover costs already spent.

This property was developed as a service station between 1969 and 1977, replacing its prior agricultural use, and remains an active Shell fueling station with a Jacksons Food Store, four underground storage tanks, and four fuel dispensers. Cleanup under the Voluntary Cleanup Program has included the 1995 removal of hydraulic hoists and USTs along with excavation of 13 cubic yards of petroleum-stained soil, installation of a Stage II Vapor Recovery System, and a 2012 Interim Remedial Action Measure that removed 977 tons of petroleum-impacted soil and replaced groundwater monitoring wells. Extensive groundwater monitoring was conducted across multiple periods from 1996 through 2019, and cleanup work 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
Address13138 Interurban Ave S, Tukwila, King County
Historical UseGas Station
Est. Operating Since1969
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (TPH) from leaking USTs detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #5937

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 contamination at this site originated from underground storage tanks installed and operated as early as 1969 — more than fifteen years before occurrence-based Commercial General Liability policies gave way to claims-made forms with pollution exclusions. The documented remediation expenditures here — UST removals, nearly a thousand tons of soil excavation, vapor recovery, well installations, and over two decades of groundwater monitoring — represent costs that historical carriers who issued CGL policies during the pre-1986 operational window may be obligated both to reimburse 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.

Ready to learn more?

Contact Us

This analysis is preliminary and based on publicly available records. Restorical Research is not a law firm and does not provide legal advice.