Central Otago's economy could lose $6 million a year through Labour's proposed water tax, a strongly-worded letter from Central Otago Mayor Tim Cadogan to Labour leader Jacinda Ardern says.
Mr Cadogan, who wrote to Ms Ardern yesterday, said Labour's water tax announcement had been greeted with "fear and dismay" in Central Otago and would be "grossly unfair" on the region.
His letter comes at the same time as a group of Maniototo women are separately preparing a campaign against the water tax.
Puketoi Station farmer Emma Crutchley said the campaign would portray a "positive image" of Maniototo farming in a bid to show a water tax would be unjust. It would cost Maniototo farmers about $2 million a year - part of the wider $6 million loss for Central Otago.
Farmers could be forced to either sell irrigation shares, sell their family farm - possibly to corporate owners - and move somewhere with higher rainfall, or convert to a more intensive land use such as dairy farming.