"The inquiry has come to a considered view and it's now up to the councils to rectify any problems - we all need to learn any lessons."
He said part of rectifying the problems was the creation of the Joint Working Group (JWG), established late last year, which he described at the time as a breakthrough.
During last year's hearings the JWG, which comprises representation from Hastings District Council, Hawke's Bay Regional Council, the DHB and drinking water assessors, was directed by the panel to meet regularly and share information about any potential drinking water safety risk.
"That's what we have tried to do and this is building relationships with the organisations locally," Dr Snee, who brokered the group, said.
He said the HBDHB understood the Inquiry's work was not complete, and they would assist the panel as it moved to identify systemic issues and system changes which might be required to ensure drinking water was safe throughout New Zealand.