Gas Station cleanup site — Restorical Research
Arco 05923 Masad Nicola
Chehalis, Lewis County
Restorical Research
Preliminary Site-Specific Analysis

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

This property has operated continuously as an ARCO-branded retail gasoline station with a convenience store at 115 Highway 12 in Chehalis. In 1993, contaminated soil was discovered during an underground storage tank system and canopy upgrade, resulting in the excavation and removal of between 1,115 and 1,156 cubic yards of impacted soil. Lead contamination in soil was additionally identified in 2009 during dispenser upgrades, reflecting fueling operations that predate the phase-out of leaded gasoline. Groundwater monitoring through quarterly sampling and natural attenuation has continued under Voluntary Cleanup Program oversight since 1993, with regulatory activity extending through 2024. That history could support an insurance cost recovery claim against carriers who issued insurance policies 40+ years ago.

Former Use
Former Gas Station
AddressChehalis, Lewis County
Historical UseGas Station
Est. Operating SincePre-1986
StatusCleanup Started
Contamination & Investigation
Site Assessment Summary
ContaminantsPetroleum hydrocarbons and lead detected in soil; petroleum hydrocarbons in groundwater from historical UST operations
Media ImpactedSoil, Groundwater, Air
Regulatory ProgramMTCA — Voluntary Cleanup Program
Ecology Site #11287

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.

The lead-contaminated soil documented at this site is a reliable marker of fuel dispensing operations predating 1986, when leaded gasoline remained in widespread retail use and occurrence-based Commercial General Liability policies carried no effective pollution exclusion. Historical CGL carriers who issued policies during that pre-1986 operational window may bear obligation for remediation costs tied to those early operations. The documented expenditures here — UST removal, large-scale soil excavation, and more than three decades of groundwater monitoring — represent costs already incurred as well as ongoing natural attenuation work that historical carriers 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.