Industrial & Manufacturing cleanup site — Restorical Research
Avison Lumber - Mill #1
Clackamas County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as an industrial and manufacturing facility going back to 1955. Historical insurance policies issued during those prior operations and through 1986 could help fund the ongoing and future cleanup under Oregon DEQ oversight.

This industrial property operated as a lumber mill from the mid-1950s through the early 1990s, with pentachlorophenol dip tanks in use from approximately 1973 to 1983. Pentachlorophenol has been confirmed in groundwater at elevated concentrations near the former dip tank area, and dioxins and furans have been detected in Bear Creek sediment and on-site drainage ditches. Oregon DEQ issued a Record of Decision in September 2007 and approved a Remedial Action Plan for the South Parcel in July 2023, with remedial action — including excavation, consolidation, activated carbon amendment, capping, and wetland restoration — planned for summer 2025, while the North Parcel still requires construction of a permanent engineered cap. 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
LocationClackamas County
Historical UseIndustrial & Manufacturing
Est. Operating Since1955
Project StatusAssigned
Contamination & Investigation
Site Assessment Summary
ContaminantsPentachlorophenol (PCP), dioxins, furans, and chlorophenols in soil, groundwater, sediment, and surface water
Regulatory ProgramOregon DEQ — Cleanup Program / VCP
DEQ ECSI #4014

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 pentachlorophenol dip tank operations that ran from 1973 to 1983, entirely before 1986, at a lumber mill that had been operating since the mid-1950s. The remediation work ahead — excavation, consolidation, activated carbon amendment, and capping of the South Parcel, construction of the North Parcel's permanent engineered cap, wetland restoration, and ongoing monitoring and reporting under Oregon DEQ oversight — represents costs that pre-1986 carriers 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.