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NW Fishletter #389, January 7, 2019
 Corps Investigates 192-Gallon Oil Spill At The Dalles
The U.S. Army Corps of Engineers is investigating the cause of a 192-gallon discharge of hydraulic turbine oil into the Columbia River at The Dalles Dam, and has initiated cleanup.
A news release from the Corps said that the agency discovered the leak on Dec. 18, when its control room received a low sump oil alarm for one of the dam's turbines. Operators removed the unit from service, isolated it from the river and deployed absorbent pads, the release said. The National Response Center, Washington, Oregon, the Columbia River Inter-Tribal Fish Commission and Columbia Riverkeeper have been notified, according to the release.
The Corps will continue to monitor the river below The Dalles and prepare to clean up any oil sheens discovered, it said.
A news release from Columbia Riverkeeper said the event was just the latest spill at a Corps dam. Earlier this year, 474 gallons of turbine oil went unaccounted for at The Dalles Dam, and is presumed to have spilled into the Columbia River.
The nonprofit group credits a 2014 court settlement with the Corps for discovery of the most recent leak. It said the problem was detected while recording oil levels under its oil accountability program, which was required in the settlement. -K.C. Mehaffey
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