(KNZA)--The Kansas Department of Health and Environment has issued a boil water advisory for the Jefferson County community of Winchester.

The advisory was issued Saturday evening because of a loss of pressure due to an equipment malfunction.  KDHE says failure to maintain adequate pressure may result in a loss of chlorine residuals and bacterial contamination.

Customers are advised to boil the water they use for drinking and food preparation for one minute prior to use or use bottled water.

The advisory will remain in effect until further notice.

Also a boil advisory remains in place for the Jefferson County community of Nortonville.

It was issued Friday due to a line break resulting in a loss of pressure in the system.