Gas Station cleanup site — Restorical Research
Mobil 99 CHT
7323 Aurora Ave N, Seattle, King County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station going back to 1927. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup.

This Aurora Avenue property operated as a Mobil-branded gasoline service station from at least 1927, with a 1961 redevelopment adding four underground storage tanks, a dispenser island, a floor sump, and an auto hoist. Groundwater monitoring wells were installed in late 2015 with quarterly sampling events continuing through 2016 and into 2017, but no active remedial action has commenced; the current remedial action on record is listed as none. Soil vapor sampling has detected lead scavengers consistent with the historical use of leaded gasoline throughout the station's operating life. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address7323 Aurora Ave N, Seattle, King County
Historical UseGas Station
Est. Operating Since1927
StatusAwaiting Cleanup
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (TPHg, BTEX) and lead scavengers from former USTs detected in soil, groundwater, and soil vapor
Media ImpactedSoil, Groundwater, Air
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #13196

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.

Gasoline dispensing at this property began nearly six decades before 1986, the year pollution exclusions became standard in Commercial General Liability policies. The TPHg and BTEX contamination now documented in soil and groundwater is characteristic of the slow, cumulative releases from underground storage tanks that pre-1986 occurrence-based policies were written to cover without effective exclusion. The remediation costs ahead — active cleanup design, treatment, and long-term monitoring — are the type of expenditure that historical carriers who issued CGL policies during those decades of Mobil operations 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.