5000 non-citizens voted last year in Colorado?

A recent article in The Hill reports on a study done by the Colorado Secretary of State's Office which identified as many as 12,000 non-citizens who were registered to vote in the state and that 5000 may have voted in the last election.

According to the Colorado Secretary of State:

"We don't have a screen for citizenship on the front end when people register to vote."

Does Utah have a similar problem?

The article can be found at:

http://thehill.com/homenews/house/153079-gop-says-5000-non-citizens-voting-in-colorado-a-wake-up-call-for-states

(The Hill: "GOP says 5,000 non-citizens voting in Colorado a 'wake-up call' for states" by Debbie Siegelbaum)