This property served as a 7.3-acre construction contractor work area supporting the building of Detroit Dam from approximately 1947 through 1953, after which the work area was submerged within Big Cliff Reservoir. Sediment sampling conducted between 2009 and 2016 confirmed elevated levels of PCBs (Aroclors 1254 and 1260), metals, diesel-range and residual-range organics, and semi-volatile organic compounds in reservoir sediment. Oregon DEQ has assigned the site for oversight and classified it in early investigation status, with no remediation completed to date and recent DEQ activity recorded as of March 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.
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 site traces to construction contractor operations conducted from approximately 1947 through 1953 in support of building Detroit Dam — more than three decades before 1986. The investigation, characterization, and sediment remediation work that lies ahead under Oregon DEQ oversight represents substantial future costs that historical pre-1986 carriers for the contractors and operators at this property 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.
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Contact UsThis analysis is preliminary and based on publicly available records. Restorical Research is not a law firm and does not provide legal advice.