Officials tracking the Jan. 15 oil spill into the Columbia River are estimating that a total of 2,000 gallons spilled, with 1,300 gallons going into the water. The other 700 gallons were recovered within the dam structure itself before it could seep into the river.

NRC Environmental was hired by the dam operator, the U.S. Army Corps of Engineers, to recover oil from the water. NRC placed more than 4,000 feet of boom to help capture residual oil from the water.