Oil Spills into Snake River
An estimated 100 gallons of turbine oil has slowly spilled into the Snake River at Lower Monumental Dam near Kahlotus.
The spill, which occurred between Dec. 14 and Jan. 4, was reported to Columbia Riverkeeper under reporting requirements from a 2014 court settlement.
The most recent spill was discovered while the U.S. Army Corps of Engineers was recording oil levels. It found an unexplained drop of an inch in the oil sump associated with one of its six turbines used to generate electricity, according to information provided to Columbia Riverkeeper.
The oil is presumed to have gradually gone into the river over three weeks.
742 Gallons of Oil Dripped into Snake River near Kahlotus by Annette Cary, Tri-City Herald, 8/9/17
Corps Confirms Oil Leak at 810-MW Lower Monumental Hydro by Elizabeth Ingram, HydroWorld, 8/9/17
Corps: Oil Leaked from Dam into Snake River Over 7 Months by Associated Press, U.S. News & World Reports, 8/9/17
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