Gas Station cleanup site — Restorical Research
Corner Chevron
113 W Walla Walla Hwy, Colfax, Whitman County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station going back to 1938. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

The Corner Chevron Station in Colfax has operated as a gasoline service station since 1938, dispensing leaded gasoline, diesel, super unleaded, and unleaded fuel from underground storage tanks. Cleanup under the Standard Cleanup program has included the permanent removal of all five USTs, excavation and incineration of 430 cubic yards of petroleum-contaminated soil found between eight and fourteen feet below ground surface, and periodic groundwater monitoring from 1995 through 2000 involving dedicated monitoring wells and groundwater sampling. 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
Address113 W Walla Walla Hwy, Colfax, Whitman County
Historical UseGas Station
Est. Operating Since1938
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (gasoline, BTEX) including leaded gasoline constituents detected in soil and groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #9804

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 underground storage tank operations that began nearly five decades before 1986, when occurrence-based Commercial General Liability policies were still the industry standard and carried no effective pollution exclusion. The documented remediation expenditures — tank removal, large-scale soil excavation and incineration, and years of groundwater monitoring — represent costs that historical carriers who issued CGL policies during the station's 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.

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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.