(KAIR)--The Kansas Department of Health and Environment has issued a boil water advisory for Atchison Co RWD 5C public water supply system located in Atchison County and purchasing systems of City of Lancaster in Atchison County and Doniphan Co RWD 3 in Doniphan County.

The advisory does not affect customers of the city of Nortonville or the city of Effingham.

The advisory was issued Monday because of a waterline break resulting in a loss of pressure in the distribution system. 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 or food preparation for at least one minute or use bottled water until further notice.

The advisory will remain in place until the conditions that placed the system at risk of bacterial contamination are resolved.