An algae bloom in Adams County water reservoirs is to blame for a funny taste and smell residents have been complaining about recently.
Residents in Brighton and Thornton have reported an "earthy" odor in recent weeks, reported the Denver Post.
The utilities director for the city of Brighton said the warm, dry summer made for perfect conditions for the algae.
The city's water treatment does not remove odor, but the water is safe to drink, officials said.
Officials believe the odor will be gone in a few weeks.