Central Hawke's Bay farmers and growers have so far expressed interest in taking 42 per cent of the water potentially available through the Ruataniwha dam and irrigation scheme.
Hawke's Bay Regional Investment Company, the regional council's investment arm that is driving the dam project, says it is happy with the current level of interest and expects demand for water to grow once the scheme is built.
The company has signed expressions of interest agreements with 109 potential water users on the Ruataniwha Plains who have signalled they would like to take a total of 43.6 million cubic metres of water a year from the scheme.
Last week the company said the scheme would be able to reliably deliver 104 million cubic metres of water per year, up from 90 million cubic metres forecast in feasibility work done on the project.
The increase in available water has been made possible by factors including a design change related to the positioning of the dam wall and a reduction in predicted water loss as it flowed through the system.