The Macon Water Authority reported Wednesday that more than 5 percent of its drinking water samples last month contained coliform bacteria, which was a violation of state drinking water standards.
Coliform bacteria is not a health threat in itself, but it is used as an indicator of other potentially harmful bacteria such as e. coli. None of the water samples with elevated coliform contained e. coli, said authority Director Tony Rojas.
The samples were taken in early May, and follow-up tests showed the coliform levels had dropped back to normal within three days, according to an authority news release.
Rojas said the authority determined that Macon-Bibb County firefighters checking fire hydrants were the cause of the spike in coliform levels in early May.
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