A small amount of oil - about one or two tablespoons a day - is leaking from a powerhouse at the Bonneville Dam into the Columbia River.

Corps of Engineers spokesman Matt Rabe told The Columbian (http://bit.ly/10lh9XE) the source has been identified and workers are trying to fix it.

The leak was reported Feb. 4 to the state Ecology Department. Spokeswoman Linda Kent says the amount of oil is too small to be recovered, although it can cause a large sheen on the water.

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Information from: The Columbian, http://www.columbian.com