Murray–Darling Basin
33.3 Groundwater access entitlement for allocated extractions

Supporting information

The volumetric value for the line item for the 2011–12 year was 1,831,641 ML. The line item includes groundwater entitlements or other arrangements 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 a sustainable diversion limit area basis.

 

Groundwater access entitlement for allocation extraction in the MDB region as applicable in the 2011–12 year
Groundwater resource plan area

Groundwater sustainable diversion limit area 

 State 

 Volume (ML) for the 2011–12 year 

Code

Name

Non-urban

Urban

Supplementary

Total

GW18 New South Wales Border Rivers Alluvium GS32and GS33 NSW Border Rivers Alluvium and NSW Border Rivers Tributary Alluvium NSW

17,435

45

0

17,480

GW17 New England Fractured Rock and Northern Basalts GS18 Inverell Basalt NSW

3,076

3

0

3,079

GS22 Liverpool Ranges Basalt NSW

422

0

0

422

GS37 New England Fold Belt NSW

7,942

559

0

8,501

GS49 Warrumbungle Basalt NSW

71

0

0

71

GW16 Eastern Porous Rock GS17 Gunnedah–Oxley Basin MDB  NSW

16,670

420

0

17,090

GS41 Sydney Basin MDB NSW

2,358

0

0

2,358

GW15 Gwydir Alluvium GS24 Lower Gwydir Alluvium NSW

28,858

3,572

13,930

46,360

GW14 Namoi Alluvium GS29 Lower Namoi Alluvium NSW

81,596

4,407

20,874

106,877

GS40 Peel Valley Alluvium NSW

62,136

734

n/a

62,870

GS47 Upper Namoi Alluvium NSW

109,632

6,280

37,783

153,695

GW13 New South Wales Great Artesian Basin Shallow GS34 to GS 36 New South Wales GAB: Surat Shallow, Warrego Shallow and Central Shallow NSW

5,694

0

0

5,694

GW12 Macquarie–Castlereagh Alluvium GS14 Castlereagh Alluvium NSW

583

0

0

583

GS26 Lower Macquarie Alluvium NSW

65,458

3,090

2,396

70,944

GW 11 Lachlan and South Western Fractured Rock GS19 Kanmantoo Fold Belt NSW

1,500

0

0

1,500

Sub-total Northern Basin

403,431

19,110

74,983

497,524

GW 11 Lachlan and South Western Fractured Rock GS10 Adelaide Fold Belt NSW

2,150

0

0

2,150

GS 20  Lachlan Fold Belt NSW

73,279

2,517

0

75,796

GS39 Orange Basalt NSW

9,471

79

0

9,550

GS51 Young Granite NSW

6,338

16

0

6,354

GW7 Darling Alluvium  GS23 Lower Darling Alluvium NSW

876

0

0

876

GW10 Lachlan Alluvium GS25 Lower Lachlan Alluvium NSW

105,678

2,924

21,238

129,840

GW9 Murrumbidgee Alluvium GS28 Lower Murrumbidgee Alluvium (deep; Calivil formation and Renmark Group) NSW

268,104

2,230

41,196

311,530

Lower Murrumbidgee Alluvium (shallow; Shepparton formation) NSW

5,201

n/a

n/a

5,201

GW8 Murray Alluvium GS27 Lower Murray Alluvium (deep; Renmark Group and Calivil formation) NSW

83,592

79

47,782

131,453

Lower Murray Alluvium (shallow; Shepparton formation) NSW

62,334

0

0

62,334

GS46 Upper Murray Alluvium NSW

41,077

191

0

41,268

GW6 Western Porous Rock GS50 Western Porous Rock NSW

32,324

0

0

32,324

GW2 Goulburn–Murray GS08 Goulburn–Murray Vic.

454,942

n/a

n/a

454,942

GW3 Wimmera–Mallee (groundwater) GS09 Wimmera–Mallee Vic.

45,122

n/a

n/a

45,122

GW5 Eastern Mount Lofty Ranges GS01 Angus Bremer (Murray Group limestone) SA

6,500

n/a

n/a

6,500

GS04 Marne Saunders (fractured rock) SA

2,000

n/a

n/a

2,000

Marne Saunders (Murray Group limestone) SA

2,156

n/a

n/a

2,156

Marne Saunders (Renmark Group) SA

500

n/a

n/a

500

GW4 SA Murray GS03 Mallee (Murray Group limestone) SA

5,138

n/a

n/a

5,138

Mallee (Renmark Group) SA

3,700

n/a

n/a

3,700

GS05 Peake–Roby–Sherlock (confined) SA

2,168

n/a

n/a

2,168

Peake–Roby–Sherlock (unconfined) SA

3,215

n/a

n/a

3,215

Sub-total Southern Basin

1,215,865

8,036

110,216

1,334,117

Total for the region

1,619,296

27,146

185,199

1,831,641

 

The table provides information about New South Wales, Victoria and South Australia.  Information for Australian Capital Territory and Queensland is not available to be reported.

Other supporting information:

  • Non-urban volume stated in the table for GS27 Lower Murray Alluvium includes entitlements for salinity and water table management.

  • Non-urban volume stated in the table for GS8 Goulburn–Murray includes both non-urban and urban entitlements.

  • 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 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 WSPA and Telopia Downs WSPA in Victoria, and Mallee Prescribed Wells Area (PWA) and Tintinara–Coonalpyn PWA 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 PWA is not included as part of this region. It is not considered to be part of the MDB resources and is excluded by the Water Act 2007 (Cwlth) regulations from the MDB.

 

Quantification approach

Data source

Jurisdictional water allocation plans and other data sources for groundwater resources listed under 'Method'.

Provided by

Bureau of Meteorology (the Bureau).

Method

Extracted/calculated from following jurisdictional water allocation plans and other data sources for groundwater resources.

Water sharing plans for groundwater resource plan areas:

  • Water Allocation Plan for the Angas Bremer PWA
  • Water Allocation Plan for Mallee PWA
  • Water Allocation Plan for the Marne Saunders Prescribed Water Resources Area 
  • Water Allocation Plan for the Noora PWA
  • Water Allocation Plan for the Peake, Roby and Sherlock PWA
  • Upper Ovens River Water Management Plan 2012.

Other data sources:

  • New South Wales Office of Water: water access licence statistics
  • Victorian Water Accounts 2010–11.  

Assumptions, limitations, caveats and approximations

The entitlement volumes reported are the initial volumes of the water allocation plans. The actual volumes of entitlements during the 2011–12 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.

Uncertainty information

The uncertainty estimate was not quantified.

 

Comparative year

The following changes resulted in the restatement of the 2010–11 year volume:

  • scope change
  • error correction.

The changes and their respective values are detailed in the following table.

 

Restatement of comparative year information made for the line item 33.3 Groundwater access entitlement for allocated extractions
2011 Account line item

Segment

2012 Account volume for the 2010–11 year (ML)

2011 Account volume for the 2010–11 year (ML)

Difference due to scope change and prior period error correction (ML)

33.3 Groundwater access entitlement for allocation extraction Northern Basin

439,031

387,904

51,127

Southern Basin

1,127,015

1,018,928

108,087

Whole region

1,566,046

1,406,832

159,214

Scope change was due to the following reason:

  • Information on entitlement volumes for several groundwater management areas and water supply protection areas in Victoria was not included in the 2011 Account. The areas are Alexandra, Barnawatha, Kinglake, Loddon Highlands, Lower Ovens, Mid-Goulburn, Mullindolingong, Upper Ovens, Little Desert, Nhill and unincorporated areas. Information for these areas has been included in the 2012 Account. Resulting volume for this scope change is 106,398 ML.

Prior period error correction was due to the following reasons:

  • Entitlement volumes which are based on the water sharing plan commenced during 2010–11 for Peel Valley Alluvium in New South Wales were not included in the 2011 Account. These volumes have been included in the 2012 Account.  As a result entitlement volume reported in the 2012 Account for the 2010–11 year is 51,125 ML.

  • Campaspe Deep Lead Water Supply Protection Area and Southern Campaspe Plains Groundwater Management Area for which separate information was provided in the 2011 Account are now parts of the Lower Campaspe Valley WSPA. In the 2012 account entitlement volumes for the Lower Campaspe Valley WSPA has been provided.  As a result entitlement volume for the 2010–11 year has been updated from previous 54,398 ML to 56,627 ML resulting 2,229 ML increase.

  • Minor updates to information provided in the 2011 Account for the other sustainable diversion limit areas have resulted in 538 ML decrease in entitlement volumes.