Landfill cleanup site — Restorical Research
Unpermitted Rossman Landfill PPA
Clackamas County
Restorical Research
Preliminary Site-Specific Analysis

This property has a documented history as a landfill going back to 1960. Historical insurance policies issued during those prior operations and through 1986 could help fund the ongoing and future cleanup under Oregon DEQ oversight.

This property served as an unpermitted landfill operated from 1960 to 1969, followed by sand and gravel mining and an asphalt plant constructed on or near the landfill footprint around 1970, with a gasoline release from an above-ground storage tank occurring circa 1986. Groundwater sampling in the late 1980s and early 1990s confirmed elevated iron, manganese, and benzene concentrations, and subsequent investigation documented metals, volatile and semivolatile organic compounds, pesticides, and PCBs throughout the landfill footprint — with potential impacts to nearby Clackamette Cove. A Prospective Purchaser Agreement with Oregon DEQ has been in place since June 2000, but a 2024 narrative confirms that the landfill mitigation required under the PPA scope of work was never conducted, and Clackamas Water Environment Services now projects that mitigation work will begin in fiscal year 2025–2026. 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
LocationClackamas County
Historical UseLandfill
Est. Operating Since1960
Project StatusAssigned
Contamination & Investigation
Site Assessment Summary
ContaminantsBenzene, iron, manganese, volatile and semivolatile organic compounds, pesticides, and PCBs in groundwater
Regulatory ProgramOregon DEQ — Cleanup Program / VCP
DEQ ECSI #1238

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 originates from an unpermitted landfill operated from 1960 to 1969 and subsequent industrial operations — including an asphalt plant constructed on the landfill footprint around 1970 — all well before 1986. With two decades of deferred mitigation now advancing under the Prospective Purchaser Agreement and active Oregon DEQ oversight, the investigation, remediation, and long-term monitoring costs ahead represent a substantial ongoing and future obligation that historical pre-1986 carriers may be required 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.