From the Loveland Reporter Herald:
A test for toxic chemicals in the Poudre River west of Fort Collins came up negative Monday, according to local officials. A test for poly-aromatic hydrocarbons did not find any. However, the city of Fort Collins is continuing to take its drinking water from Horsetooth Reservoir. Crews have hauled away all of the debris from the immediate site of the Aug. 25 crash of a tanker hauling liquid asphalt into the river, and about 70 percent of the asphalt in the river has been removed as well. Work should be completed by the weekend, officials said.
More Cache la Poudre coverage here.