Efforts are continuing to resolve the problem with the water system at the new Ellon Academy campus.
Council officials hope that the restrictions on drinking can be lifted by the end of the month.
Bottled water has been distributed to pupils at the Cromleybank complex throughout the first term.
Water quality testing has been taking place and the contractors are trying to remedy the problem.
Aberdeenshire Council’s head of property and facilities management, Allan Whyte, said: “The contractor is working to resolve the water issues at the campus.
“Further testing will take place and it is hoped the water restrictions can be removed by the end of October.”
Ellon and District Councillor Isobel Davidson said there had been teething problems at the campus but it was hoped to have the water back on by the time pupils return from the school holidays.
She added: “The new school is excellent although there is a little snagging to tidy up.”
The £36 million academy - which has leisure and community facilities - opened its doors in August.