Industrial & Manufacturing cleanup site — Restorical Research
UPRR Tie Treating Plant - The Dalles
Wasco County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as an industrial and manufacturing facility going back to 1922. Historical insurance policies issued during operations at this property and through 1986 could help fund the ongoing and future cleanup under Oregon DEQ oversight.

This industrial property has operated as a railroad tie treating plant since 1922, passing through multiple owners including Union Pacific Railroad predecessors, Kerr-McGee, and the current operator AmeriTies. Decades of creosote treatment and pentachlorophenol use contaminated soil and groundwater with dense non-aqueous phase liquid (DNAPL) creosote, polycyclic aromatic hydrocarbons, pentachlorophenol, naphthalene, arsenic, and benzene — with an underground pipe carrying contaminated stormwater runoff to the Columbia River from 1937 to 1971. The site was listed on the EPA National Priorities List in 1990, and a Consent Decree entered in 1997 obligates Union Pacific Railroad to fund all investigation and cleanup costs. Groundwater extraction and treatment systems remain in operation, Columbia River shoreline sediments were capped in 1995, and Oregon DEQ has confirmed that recovery and monitoring at the site will continue indefinitely. 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 Industrial & Manufacturing
LocationWasco County
Historical UseIndustrial & Manufacturing
Est. Operating Since1922
Project StatusAssigned
Contamination & Investigation
Site Assessment Summary
ContaminantsCreosote (DNAPL), polycyclic aromatic hydrocarbons (PAHs), pentachlorophenol, naphthalene, arsenic, benzene, and fuel oil in soil, groundwater, and Columbia River sediments
Regulatory ProgramOregon DEQ — Cleanup Program / VCP
DEQ ECSI #0054

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.

The contamination at this property originated from tie-treating operations that began in 1922 and continued for decades, placing more than sixty years of industrial activity at this facility well before 1986. The ongoing groundwater extraction and treatment, DNAPL recovery, and indefinite monitoring obligations directed under the Consent Decree represent substantial current and future cleanup costs that pre-1986 carriers whose policies were in effect during those operational years may be obligated 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

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.