SUNNYSIDE, Wash. (AP) — State environmental officials now say up to 2,200 gallons of used motor oil spilled into irrigation ditches and the Yakima River in the lower valley.

Officials initially reported as much as 1,500 gallons of oil leaked from an above ground storage tank on Sunday. But Ecology Department spokeswoman Lisa Copeland says officials determined the tank on a former feed lot near Sunnyside could hold as much as 2,200 gallons.

About 50 ducks, geese and other waterfowl have been reported covered in oil. And on Wednesday, a subcontractor was on the scene collecting the birds.

Ecology officials say a flight over the area on Tuesday also confirmed the leak is contained.

Cleanup crews are using absorbent pads, protective booms and vacuum pumps to clean up the oil. The work could take weeks.

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