Substantive issues would be dealt with at a later date.
Hastings mayor Lawrence Yule said he was pleased the hearing, and the formal part of the inquiry would be starting soon.
"We need to get to the bottom of this, and I'm pleased that part of it is soon to be under way," he said.
A team from the inquiry had met with members from the Hastings District Council last week.
The inquiry will focus on how the contamination occurred, how this was addressed, and how local and central government agencies responded to the public health outbreak that occurred as a result of the contamination.
It will also examine how to reduce the risk of outbreaks of this nature recurring, and consider any necessary changes to prevent or minimise similar incidents in the future.
Chairing it will be retired Court of Appeal judge, the Honourable Lyn Stevens, QC. Justice Stevens will be joined on the panel by NZQA CEO and former Director-General of Health, Dr Karen Poutasi CNZM, and local government and engineering expert, Anthony Wilson.
The inquiry will report back by March 31, 2017.
- The public hearing will be held at 10am, Thursday, October 27, at Hastings District Court, 106 Eastbourne St West, Hastings.