Shaw has been under an alert since Dec. 31, affecting approximately 1,932 customers in the area.
A sampling showed the presence of total coliform bacteria in the drinking water.
Health officials strongly recommend that all water be boiled vigorously for one minute before it is consumed. Water system officials will be immediately notified when the boil water alert is lifted.
Gunnison has been under a Boil-Water Alert since Feb. 3, affecting 178 customers.
Water system officials notified the Mississippi State Department of Health of a system wide pressure loss due to one or more line breaks.
When a distribution system loses pressure, contaminants can siphon back into the water. Public health officials consider any system that loses pressure contaminated until tests prove otherwise. Health officials strongly recommend that all water be boiled vigorously for one minute before it is consumed.
The water system will be notified when tests show that the water is safe to drink.