Gas Station cleanup site — Restorical Research
ARCO 6031
11450 NE 124th St, Kirkland, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station going back to 1968. Historical insurance policies issued during operations at this property and through 1986 could fund a cleanup — and recover costs already spent.

ARCO 6031 has operated continuously as a retail gasoline station at this Kirkland address since 1968, initially dispensing leaded gasoline before the mid-1980s phaseout. Contamination attributed to historical fueling equipment was discovered in 2001, triggering enrollment in Washington's Voluntary Cleanup Program. Remediation has included over-excavation and off-site disposal of 893.15 tons of impacted soil, thermal desorption treatment of 2.40 tons of drill cuttings, groundwater pumping with carbon treatment, installation of an air sparge and soil vapor extraction system, and continuous groundwater monitoring from 2003 through at least 2015. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address11450 NE 124th St, Kirkland, King County
Historical UseGas Station
Est. Operating Since1968
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons from historical fueling operations detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #10551

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.

This station dispensed leaded gasoline for roughly two decades before 1986 — the period when occurrence-based Commercial General Liability policies were the industry standard and carried no effective pollution exclusion. The contamination discovered in 2001 is explicitly attributed to that historical fueling equipment, not to the replacement USTs installed in November 1987, meaning the operative releases trace directly to the pre-1986 operational window. The documented VCP remediation trail — nearly 900 tons of excavated soil, thermal treatment, groundwater recovery, and more than a decade of monitoring — represents costs that historical carriers whose policies covered ARCO 6031's operations during the leaded-gasoline era may still be obligated to fund.

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.