One boil water advisory was removed but another was issued in the Township of Ashfield-Colborne-Wawanosh this week.
Users of the Benmiller drinking water system have been issued a precautionary boil water notice after an equipment failure at the wellhouse on Wednesday.
The notice will be lifted once samples have been cleared by the health unit.
The process can take up to several days. A boil water advisory that was issued for the Huron Sands community on Sunday was just lifted yesterday.
Until then, Benmiller residents are advised to bring water to a rolling boil for at least one minute before consuming.