Gas Station cleanup site — Restorical Research
Arco 5782 PSI 5215
Moses Lake, Grant County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a gasoline service station going back to 1939. Historical insurance policies issued during those prior operations and through 1986 could fund a cleanup — and recover costs already spent.

This property has operated as a retail gasoline station since 1939, with underground storage tanks dating to at least 1957. Tank installation records document a 10,308-gallon regular gasoline tank installed approximately that year and three additional tanks installed around 1962. Documented releases include a 1972 gasoline leak caused by degraded rubber hose connectors and a 1984 spill of 960 gallons of unleaded gasoline from a leaky union below the dispenser. Cleanup has been completed and the site remains under active operations and monitoring, with petroleum contamination — including benzene and BTEX compounds — confirmed in groundwater. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
AddressMoses Lake, Grant County
Historical UseGas Station
Est. Operating Since1939
StatusCleanup Complete — Active O&M/Monitoring
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons (including benzene and other BTEX compounds) detected in groundwater
Media ImpactedSoil, Groundwater
Regulatory ProgramMTCA — Standard Cleanup
Ecology Site #4952

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 retail operations at this property date to 1939, nearly five decades before the 1986 shift from occurrence-based to claims-made Commercial General Liability policies. The documented releases from aging underground storage tank infrastructure — a 1972 gasoline leak and a 960-gallon spill in 1984 — occurred squarely within the window when CGL policies carried no effective pollution exclusion. Historical carriers who underwrote the station's operations during that era may bear obligation for the remediation expenditures incurred to address the benzene and petroleum hydrocarbon contamination found in groundwater beneath the site.

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.