Auckland's mayor says the Government's Three Waters model still doesn't stack up for the city.

The Government's today confirmed its ploughing ahead with reforms including a public shareholding model.

Co-governance is also in the mix at a regional level with each area getting a council and mana whenua chair.

Phil Goff told Heather du Plessis-Allan even with the changes, the structure does not reflect the unique position of Auckland which has already amalgamated.

“We don’t get any benefit from economies of scale and extra professionalism. It’s what we lose and what we lose is that direct control and accountability of the water service's entity back to the people of Auckland.”

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