Northern Colorado’s newest reservoir to be filled following uranium detection

Northern Colorado’s newest reservoir, Chimney Hollow, will begin receiving water next week. The initial water moving into the reservoir is a major step for the project after such efforts came to a halt following the detection of mineralized uranium on the property.

Located west of Loveland, Chimney Hollow Reservoir is a project being built by Northern Water. After decades of planning and construction, Northern Water completed their massive dam in 2025. The dam is one of the largest dams built in America in recent history.

However, as the construction completed, researchers detected mineralized uranium in the dam which was built from rocks dug up from the same land that will soon be underwater…

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