JACKSONVILLE, Ala. – Jacksonville residents were advised Monday to avoid the city’s water supply.

According to a public notice released Monday by the utility systems manager, an equipment malfunction caused an abnormal amount of fluoride to be injected into the city’s water system overnight.

The above average amount of fluoride is not considered dangerous, but its presence has resulted in the discoloration, unpleasant odor and taste of the city’s water supply.

Citizens have been advised not to drink or cook with the water until the system can be flushed.

Authorities expect normal use of the water to resume later on Monday.