33.3 Groundwater access entitlement for allocation extraction
The volumetric value for the line item for the 2010–11 year was 1,406,832 ML. The line item includes groundwater entitlement or other arrangement that may produce a groundwater liability within the Murray–Darling Basin (MDB) region. The following table presents breakdown information for the line item value on sustainable diversion limit (SDL) area basis.
|Groundwater resource plan area||
|GW16 Gwydir Alluvium||GS29||Lower Gwydir Alluvium||NSW||28,858||3,572||13,930||46,360|
|GW15 Namoi Alluvium||GS34||Lower Namoi Alluvium||NSW||81,594||4,407||20,874||106,875|
|GS45||Peel Valley Alluvium||NSW||9,946||104||n/a||10,050|
|GS51||Upper Namoi Alluvium||NSW||109,612||6,280||37,783||153,675|
|GW12 Macquarie–Castlereagh Alluvium||GS31||Lower Macquarie Alluvium||NSW||65,458||3,090||2,396||70,944|
|Sub-total Northern Basin||295,468||17,453||74,983||387,904|
|GW10 Lachlan Alluvium||GS30||Lower Lachlan Alluvium||NSW||105,678||2,322||21,238||129,238|
|GW9 Murrumbidgee Alluvium||GS33||Lower Murrumbidgee Alluvium (deep: Calivil Formation and Renmark Group)||NSW||268,104||2,230||41,196||311,530|
|GS33||Lower Murrumbidgee Alluvium (shallow: Shepparton Formation)||NSW||5,201||na||na||5,201|
|GW8 Murray Alluvium||GS32||Lower Murray Alluvium (Deep: Renmark Group and Calivil Formation)||NSW||83,493||79||48,454||132,026|
|GW3 Wimmera–Mallee (groundwater)||GS09||Wimmera–Mallee||Vic||29,497||na||na||29,497|
|GW5 Eastern Mount Lofty Ranges||GS01||Angas Bremer (Murray Group Limestone)||SA||6,500||na||na||6,500|
|Marne Saunders (Fractured Rock)||SA||2,000||na||na||2,000|
|Marne Saunders (Murray Group Limestone)||SA||1,600||na||na||1,600|
|GS04||Marne Saunders (Renmark Group)||SA||500||na||na||500|
|GW4 SA Murray||GS03||Mallee (Murray Group Limestone)||SA||5,138||na||na||5,138|
|Mallee (Renmark Group)||SA||6,862||na||na||6,862|
|Peake – Roby – Sherlock (confined)||SA||2,168||na||na||2,168|
|GS05||Peake – Roby – Sherlock (unconfined)||SA||3,215||na||na||3,215|
|Sub-total Southern Basin||903,409||4,631||110,888||1,018,928|
|Total for the region||1,198,877||22,084||185,871||1,406,832|
na = not applicable
The table provides information about New South Wales, Victoria and South Australia. Other jurisdictions for which information about groundwater entitlement not able to be separately classified are:
Australian Capital Territory – no groundwater management units from the Australian Capital Territory are being reported in this account
Queensland – no information available to be reported.
Other supporting information:
The South Australian – Victorian Border Groundwaters Agreement (Government of South Australia 2005) is supported by legislation in both States. It provides for equitable sharing in the border zone, which extends from the coast to the Murray and is a 40 km wide zone centred on the border. The states agree on setting permissible consumptive volumes (PCVs) and other requirements within this zone. Various alluviums selected for reporting are either within or partly within this border zone. These are the Murrayville Water Supply Protection Area (WSPA), Kaniva Tertiary Confined Sand Aquifer (TCSA) and Telopia Downs WSPA in Victoria, and Mallee Prescribed Wells Area and Tintinara–Coonalpyn prescribed wells area in South Australia. These are State groundwater management units and licensed entitlements and extractions are included within the state groundwater management unit – not within the border zone. Therefore, separate reporting on the border zone is not needed and would be double-counting.
The Tintinara–Coonalpyn prescribed wells area is not included as part of this region. It is not considered to be part of the MDB resources and is excluded by Water Act regulations from the MDB.
Extracted/calculated from following jurisdictional water sharing plans and other data sources for groundwater resources.
Water sharing plans for groundwater resource plan areas:
Water Allocation Plan for the Angas–Bremer Prescribed Wells Area
Water Allocation Plan for the Noora Prescribed Wells area
Water Allocation Plan for the Peake, Roby and Sherlock Prescribed Wells Area
Water Sharing Plan for Lower Lachlan Groundwater Source 2003
Water Sharing Plan for Lower Macquarie Groundwater Sources 2003
Water Sharing Plan for Lower Murray Groundwater Source
Water Sharing Plan for Lower Murray Shallow Groundwater Source
Water Sharing Plan for Lower Murrumbidgee Groundwater Source 2003
Water Sharing Plan for Murray Unregulated and Alluvial
Water Sharing Plan for New South Wales Great Artesian Basin Shallow Groundwater
Water Sharing Plan for New South Wales MDB Fractured Rock Groundwater
Water Sharing Plan for New South Wales MDB Porous Rock Groundwater
Water Sharing Plan for Peel Valley Regulated, Unregulated, Alluvium and Fractured Rock
Water Sharing Plan for the Castlereagh River (below Binnaway) Unregulated and Alluvial
Water Sharing Plan for the Lower Gwydir Groundwater Source 2003
Water Sharing Plan for the Lower Murray–Darling Unregulated and Alluvial
Water Sharing Plan for Upper and Lower Namoi Groundwater Sources 2003.
Other data sources:
Campaspe Water Supply Protection Area Groundwater Management Plan – Goulburn–Murray Water Resource Plan Area
Groundwater (Border Agreement Act) 2006 (Victoria) – Wimmera–Mallee (groundwater) Water Resource Plan Area
Katunga Water Supply Protection Area Groundwater Management Plan – Goulburn–Murray Water Resource Plan Area
Marne Saunders Prescribed Water Resources Area
Mid Loddon Groundwater Management Area – Local Management Rules June 2009 – Goulburn–Murray Water Resource Plan Area
Permissible consumptive volume groundwater order 2011 – Draft Telopea Downs Water Supply Protection Area Groundwater Management Plan – Wimmera–Mallee (groundwater) Water Resource Plan Area
Permissible consumptive volume groundwater order 2011 – Murrayville Water Supply Protection Area Groundwater Management Plan - Wimmera-Mallee (groundwater) Water Resource Plan Area
Permissible consumptive volume groundwater order 2011 – Wimmera–Mallee (groundwater) Water Resource Plan Area
Shepparton Irrigation Region Water Supply Protection Area Groundwater Management Plan – Goulburn–Murray Water Resource Plan Area.
Assumptions, Limitations, Caveats and Approximations
The entitlement volumes reported are the initial volumes of the water sharing plans. The actual volumes of entitlements during the 2010–11 year period may be different from the initial volumes on issue at the time of the water plans' commencement, due to conversions between classes or issue of new entitlements. Note that trade (ownership transfer), water savings projects or buy back of entitlements for environmental purpose do not change the volume entitled within a class but only its ownership.
The uncertainty estimate was not quantified.
This line item corresponds to line items listed in the following table and reported in the 2010 Account. In the 2011 Account, the following change was made that caused the 2009–10 year value to be restated:
Improved data sets were made available after the publication of the 2010 Account. Restatement of the value published in the 2010 Account was made as the difference was material and increased the accuracy of the information provided to the users of the National Water Account.
The changes and their respective values are detailed in the following table.
Northern Basin (ML)
Southern Basin (ML)
Whole region (ML)
|Line item names and values reported as at 30 June 2010 in the 2010 Account||R2.2.1 Stock and domestic class||0||324||324|
|R2.2.2 Urban class||17,299||4,631||21,930|
|R126.96.36.199 Other lumped holders||355,046||970,490||1,325,536|
|Total value reported for the 2010 Account||372,345||975,445||1,347,790|
|Changes in the value reported in the 2010 Account due to availability of improved data sets||5,509||38,097||43,606|
|Value reported for 30 June 2010 in the 2011 Account||377,854||1,013,542||1,391,396|