In Gulf County, a precautionary boil water notice was issued Sunday morning for all of White City.
A utility manager says the notice affects about 200 households east of the Highway 71 Bridge over the intracoastal waterway.
A recent power outage caused a loss of water pressure.
To be safe, consumers should boil water for one full minute before consumption.
Samples were taken on Sunday morning, but the notice will remain in effect until tests show the water is not contaminated.