SOUTHERN Murray Darling Basin irrigators' contribution to reviving environmental flows remains unchanged.
In the draft basin plan, the figure sits currently at almost 2300 gigalitres.
Under the guide to the basin plan released last October, southern basin communities were to lose 2321GL.
Yet a MDBA spreadsheet on the draft, leaked to the media this week, shows northern basin irrigators contribution to the environment will be cut from 630GL down to 450GL.
Until now MDBA modelling under its October guide showed at least 3000GL would need to be diverted from irrigators to the environment to push 2000GL through the Murray mouth.
However, the new spreadsheet shows the draft's proposal cuts the total diversions to the environment from 3000GL to 2800GL, with most of the benefit going to northern irrigators tapping into the Darling River and its tributaries.
Under the new draft, southern irrigators will have to contribute 1318GL to water wetlands in their own valleys, plus find another 972GL to boost the flows out the Murray mouth in South Australia, a total of 2290GL.
MDBA boss Craig Knowles released details of the controversial draft plan last week, in what industry analysts regard as an attempt to test the water on community acceptance of the numbers before releasing the full draft in November.
National Irrigators Council chief executive Danny O'Brien said irrigators wanted to see the full plan as the draft appeared to be no different to the guide for southern basin communities.
NSW Irrigators Council has sought an end to the leaking and speculation over the basin plan by calling on the MDBA to release it into the public domain.
Council chief executive Andrew Gregson said the speculation and leaks had to stop.
"We call on the MDBA to publicly state immediately whether the figures now circulating are accurate," Mr Gregson said.
