The National Water Initiative (NWI) is Australia's enduring blueprint for water reform. Through this initiative, governments across Australia have agreed on actions to achieve a more cohesive national approach to the way Australia manages, measures, plans for, prices, and trades water.

Australian Water Accounting Standard

The National Water Initiative identified the need for a consistent and standardised approach to water resource accounting, resulting in a decision to treat water accounting as a discipline comparable to that of financial accounting.

The Australian Water Accounting Standard 1 was developed by the Australian Bureau of Meteorology to define the structure for preparing and presenting a General Purpose Water Accounting Report. The standard is also accompanied by a series of model reports that illustrate how the standard would be applied to various hypothetical water reporting scenarios. The document can be downloaded from the Bureau of Meteorology website.

General Purpose Water Accounting Reports 2013-2014

General Purpose Water Accounting Reports 2012-2013

General Purpose Water Accounting Reports 2011-2012

General Purpose Water Accounting Reports 2010-2011

General Purpose Water Accounting Reports 2009-2010

General Purpose Water Accounting Reports – Supporting information

Historic Available Water Determination data

The following excel files provide historic Available Water Determinations (referred to as allocation announcements under the Water Act 1912) for all regulated water sources.

Pre-water sharing plan announcements have been compiled in a single excel file.

From the commencement of the relevant water sharing plan for each regulated water source, an individual excel file is provided, where data for each water year is listed in separate worksheets.

Available Water Determinations for the current water year are available from Water allocations or the NSW Office of Water media releases.

Water Act 1912 historic allocation announcements (pre-water sharing plans)

Water Management Act 2000 historic Available Water Determinations (post-water sharing plan)