Work is under way to assess what needs to be done at Karitane School to restore its drinking water.
The Ministry of Education has commissioned specialists to take a closer look at the school, where two taps produced concerning results.
After a lead scare affecting residents of Waikouaiti, Karitane and Hawksbury Village, Public Health South asked that testing be done at schools and early childhood centres.
Elevated lead readings were found at Karitane School, probably because of pipe or tap fittings.
A recommendation not to drink the water there had been expected, school board of trustees chairwoman Jane Schofield said.
An assessment had started on what needed to be done, she said.
The Dunedin City Council was continuing to supply a water tank for the school in the meantime.
The council lifted a notice on Wednesday that had advised Waikouaiti, Karitane and Hawksbury residents against drinking tap water since February 2.
However, Public Health South recommended people continue to avoid drinking the water at both Karitane School and the Waikouaiti Golf Club.
