Gas Station cleanup site — Restorical Research
Mason Apartments
2401 E Lynn St, 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 — and recover costs already spent.

The former Montlake Service Station, a Texaco-branded gasoline service station, operated at this property from approximately 1927 to 1977, with multiple successive generations of underground storage tanks — including 550-, 2,000-, and 5,000-gallon USTs, two 4,000-gallon tanks installed in 1954, and two 6,000-gallon tanks installed in 1973. The station included two pump islands, a lubrication room with a hydraulic hoist, and a battery shop before being demolished in 1977; the property is now occupied by the Mason Apartments. Active cleanup has included soil excavation, barrier wall installation, institutional and engineered controls, investigation-derived waste disposal, incidental groundwater pumping, and ongoing quarterly groundwater monitoring tied to historical fuel releases. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
Address2401 E Lynn St, Seattle, King County
Historical UseGas Station
Est. Operating Since1927
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons from underground storage tank releases detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #12517

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 property traces directly to fuel storage and dispensing operations that began in 1927 — nearly six decades before the 1986 threshold at which occurrence-based Commercial General Liability policies ceased to reliably cover pollution claims. The successive generations of USTs installed and operated across five decades represent exactly the kind of long-duration, pre-1986 release history that those policies were written to address. The documented remediation program — excavation, barrier walls, engineered controls, and long-term groundwater monitoring — reflects costs that historical carriers whose policies were in force during the station's operational life may be obligated both to recover and to fund going forward.

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.