General Purpose Water Accounting Report 2014–2015 NSW Murray Catchment General Purpose Water Accounting Report 2014-2015 – NSW Murray Catchment Publisher: NSW Department of Primary Industries, Water Level 10, Macquarie Tower, Locked Bag 5123 Parramatta NSW 2124 [email protected] General Purpose Water Accounting Report 2014-2015 –NSW Murray Catchment First published: December 2015 ISBN: 978-1-74256-869-0 More information This report may be cited as: Burrell M., Moss P., Petrovic J., Ali A., (2015) General Purpose Water Accounting Report 2014-2015:NSW Murray Catchment, NSW Department of Primary Industries, Sydney www.water.nsw.gov.au Cover image: Murray River, Border Bridge downstream of Hume Dam, courtesy of DPI Water Hydrometric Gauging Team © State of New South Wales through The NSW Department of Industry, Skills and Regional Development 2015. You may copy, distribute and otherwise freely deal with this publication for any purpose, provided that you attribute the NSW Department of Primary Industries as the owner. Disclaimer: The information contained in this publication is based on knowledge and understanding at the time of writing (December 2015). However, because of advances in knowledge, users are reminded of the need to ensure that information upon which they rely is up to date and to check currency. ii | DPI Water, April 2016 General Purpose Water Accounting Report 2014-2015 – NSW Murray Catchment Table of Contents Introduction ................................................................................................................................................... 1 Contextual Statement .................................................................................................................................. 2 Upper Murray .................................................................................................................................................... 2 Central Murray .................................................................................................................................................. 2 Lower Murray .................................................................................................................................................... 3 Accounting extent ........................................................................................................................................ 3 Climate ............................................................................................................................................................... 5 Dam inflows and volume ................................................................................................................................. 8 High flow events ............................................................................................................................................. 12 Surface water resources and management ............................................................................................... 13 Trading............................................................................................................................................................. 16 Environmental Water ..................................................................................................................................... 18 Planned environmental water .................................................................................................................. 18 Held environmental water ......................................................................................................................... 19 Water Accounting Statements ................................................................................................................. 22 Significant water accounting policies .......................................................................................................... 23 Quantification of data .................................................................................................................................... 23 Data accuracy ............................................................................................................................................ 23 2014-15 Murray Physical Flows Mass Balance Diagram ....................................................................... 24 Statement of Water Assets and Water Liabilities ...................................................................................... 25 Changes in Water Assets and Water Liabilities ........................................................................................ 26 Note Disclosures ........................................................................................................................................ 29 Reconciliation and future prospect descriptions ........................................................................................ 30 Note 1 – Allocation accounts ........................................................................................................................ 33 Note 2 – Available water determination (AWD) (allocation announcement) ......................................... 36 Note 3 – Allocation account usage .............................................................................................................. 41 Note 4 – Account Water Trading (allocation assignments) ..................................................................... 43 Note 5 - Intervalley Trade Account (IVT) .................................................................................................... 45 Note 6 – Held environmental water ............................................................................................................. 48 Note 7 – Environmental provisions.............................................................................................................. 51 Note 8 – Surface water storage ................................................................................................................... 54 Note 9 – River channel storage ................................................................................................................... 55 Note 10 - Snowy required annual release .................................................................................................. 56 Note 11 – Storage inflow............................................................................................................................... 59 Note 12 – Storage evaporation and storage rainfall ................................................................................. 60 Note 13 – River evaporation and river rainfall ........................................................................................... 61 Note 14 – Gauged tributary inflow ............................................................................................................... 62 Note 15 – Ungauged runoff estimate .......................................................................................................... 64 Note 16 – Dam releases, river inflow from dam releases ........................................................................ 65 Note 17 – End of system / Flow leaving ..................................................................................................... 67 Note 18 – NSW Extractions from river ........................................................................................................ 69 Note 19 – Victoria extractions ...................................................................................................................... 70 Note 20 – Snowy water savings transfer .................................................................................................... 71 Note 21 – Basic rights extractions ............................................................................................................... 72 Note 22 – Supplementary/Uncontrolled Flow (UCF) extractions ............................................................ 73 Note 23 – Unaccounted difference .............................................................................................................. 78 Appendix 1 - Groundwater ....................................................................................................................... 79 iii | DPI Water, April 2016 General Purpose Water Accounting Report 2014-2015 – NSW Murray Catchment Tables Table 1: 2014-15 monthly rainfall and historic monthly rainfall statistics at Tumbarumba, Berrigan and Moulamein.................................................................................................................... 6 Table 2: Water Allocation Licence Accounting Rules 2014-15 ....................................................... 13 Table 3: Water account data accuracy estimates key .................................................................... 23 Table 4: Explanatory information for allocation account summary ................................................. 34 Table 5: Allocation account balance summary for the NSW Murray regulated river 2014-15 ........ 35 Table 6: Priority of access licence categories ................................................................................. 36 Table 7: Allocation summary report notes ...................................................................................... 37 Table 8: Allocation announcements for the NSW Murray regulated river water source 2014-15 ... 38 Table 9: Licence category