These are the Macroom, Donoughmore and Whitegate schemes.
Around 9,000 customers are affected by the Whitegate notice in areas including Aghada, Churchtown, Ballycotton, Saleen, Shanagarry, Ballinacurra and areas of Cloyne.
Macroom has 4,237 customers are affected in Codrum, Masseytown, Kilnagurteen, Coolehane, Coolcower, Macloneigh, Carrigadrohid, and surrounding areas
Around 867 people are affected by the notice in Donoughmore and surrounding areas.
Repairs are continuing but customers are advised to boil water before use until further notice.
