Landfill cleanup site — Restorical Research
Clatskanie Disposal Site
Columbia County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a landfill going back to 1968. Historical insurance policies issued during those prior operations and through 1986 could help fund the cleanup that lies ahead.

This landfill property operated under Oregon DEQ oversight from 1968 to 1974, with leachate discharge historically reaching 40 gallons per minute and migrating into Conyers Creek via an unnamed tributary. In February 1973, DEQ documented that landfill leachate had eliminated aquatic insects and salmonid spawning habitat in the creek. A 1995 remedial action review recommended a Preliminary Assessment to evaluate site risks — including lead contamination from subsequent gun club use — but that investigation was never completed, and the site remains in unassigned status with no No Further Action determination issued. That history could support an insurance coverage claim against the carriers who issued policies more than 40 years ago — coverage that could help fund the cleanup ahead.

Former Use
Former Landfill
LocationColumbia County
Historical UseLandfill
Est. Operating Since1968
Project StatusUnassigned
Contamination & Investigation
Site Assessment Summary
ContaminantsLandfill leachate and lead in surface water (Conyers Creek and unnamed tributary)
Regulatory ProgramOregon DEQ — Cleanup Program / VCP
DEQ ECSI #0933

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 Oregon — and those policies may provide coverage that remains enforceable today. 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.

Landfill operations at this property ran from 1968 to 1974, placing the entire period of contaminating activity — including leachate discharge that eliminated salmonid spawning habitat in Conyers Creek — nearly two decades before 1986. The site investigation that Oregon DEQ recommended in 1995 but that was never completed, together with any remediation and ongoing monitoring work ahead for leachate impacts and secondary lead contamination, represents costs this property still faces that historical pre-1986 carriers for the landfill's operators may 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

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 viable insurance coverage exists to fund the cleanup, 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.