Residents of Schreiber, in northwestern Ontario, will have to keep boiling their water for at least a couple more days.
The township's chief administrative officer, Don McArthur, says water sample testing won't be complete until Wednesday, at the earliest.
Schreiber has been under a boil-water advisory since a water main broke at about 4 a.m. Sunday.
McArthur says the break was quickly fixed, but the township has been sending water samples to ensure it's safe.
The township needs clean water samples for two consecutive days before they can lift the boil-water advisory
Residents can expect it to be lifted sometime between Wednesday and Friday.