CHICAGO (AP) -- The U.S. Environmental Protection Agency says the leak from an oil pipeline outside Chicago appears to be slowing.
EPA on-scene coordinator Sam Borries said Saturday that the oil is no longer rising to the surface and crews have cut open pavement and dug about 5 feet to the 34-inch diameter pipe.
He says pipeline owner Enbridge Energy Partners will drill through the pipe to extract more oil.
The EPA has ordered Enbridge to stop all the flow of oil by noon Monday.
The leak was reported Thursday in the Chicago suburb of Romeoville.
Borries says that as of Friday, 200 to 600 barrels of oil per hour were being recovered but the total spill volume can't be determined yet.
He says air quality monitors indicated there's no health threat to residents.
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