Murray–Darling Basin
14.1 Adjustment and forfeiture of groundwater allocation

Supporting information

The volumetric value for the line item for the 2011–12 year was 1,078,199 ML. The line item represents adjustment and forfeiture of allocation in groundwater resource plan areas excluding urban water systems within the Murray–Darling Basin (MDB) region. Information on adjustment and forfeiture of groundwater allocation for urban water systems is included in line item 14.2 Adjustment and forfeiture of groundwater allocation–urban water system.

The following two tables provide a summary and a breakdown of volumetric details of the line item. 

 

Summary of adjustment and forfeiture of groundwater allocation (excluding urban water systems) in the MDB region in the 2011–12 year

 Groundwater resource plan area

 State/Territory

  Volume (ML) for the 2011–12 year 

  Code

 Name

 GW22

Warrego–Paroo–Nebine

 Qld

  –

 GW21

Condamine–Balonne

 Qld

        62,607

 GW20

Moonie

 Qld

             –11

 GW19

Qld Border Rivers

 Qld

         5,242

 GW18

New South Wales Border Rivers Alluvium

 NSW

        16,703

 GW17

New England Fractured Rock and Northern Basalts

 NSW

        10,566

 GW16

Eastern Porous Rock

 NSW

        17,360

 GW15

Gwydir Alluvium

 NSW

        15,329

 GW14

Namoi Alluvium

 NSW

      202,548

 GW13

New South Wales Great Artesian Basin Shallow

 NSW

         4,687

 GW12

Macquarie–Castlereagh Alluvium

 NSW

        50,165

 GW11

Lachlan and South Western Fractured Rock

 NSW

            750

 GW7

Darling Alluvium

 NSW

  –

 Sub-total Northern Basin

     385,945

 GW11

Lachlan and South Western Fractured Rock

 NSW

        82,239

 GW7

Darling Alluvium 

 NSW

            876

 GW10

Lachlan Alluvium

 NSW

        41,484

 GW9

Murrumbidgee Alluvium

 NSW

      166,522

 GW8

Murray Alluvium

 NSW

      191,909

 GW6

Western Porous Rock

 NSW

        18,233

 GW2

Goulburn–Murray

 Vic.

      161,346

 GW3

Wimmera–Mallee (groundwater)

 Vic.

        21,409

 GW5

Eastern Mount Lofty Ranges

 SA

         6,693

 GW4

SA Murray

 SA

            969

 GW1

Australian Capital Territory (groundwater)

 ACT

            574

 Sub-total Southern Basin

     692,254

 Total for the region

   1,078,199

 

Details of adjustment and forfeiture of groundwater allocation (excluding urban water systems) in the MDB region in the 2011–12 year
Groundwater resource plan area

Groundwater sustainable diversion limit (SDL) area

State/Territory

Entitlement class

 Volume (ML) for the 2011–12 year 

Code

Name

GW21 Condamine–Balonne GS53, GS58, GS61, GS64 and GS65 Condamine Fractured Rock, Sediments above the GAB: Condamine–Balonne, St George Alluvium: Condamine–Balonne (shallow and deep), Upper Condamine Alluvium and Upper Condamine Basalts Qld Aquifer

62,607

GW20 Moonie GS59 and GS62 Sediments above the GAB: Moonie and St George Alluvium: Moonie Qld Aquifer

–11

GW19 Qld Border Rivers GS54, GS55 and GS57 Qld Border Rivers Alluvium, Qld Border Rivers Fractured Rock and Sediments above the GAB: Border Rivers Qld Aquifer

5,242

 Sub-total Queensland

67,838

GW18 New South Wales Border Rivers Alluvium GS32 NSW Border Rivers Alluvium  NSW Aquifer

15,146

GS33 NSW Border Rivers Tributary Alluvium NSW Aquifer

1,557

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

3,051

GS22 Liverpool Ranges Basalt NSW Aquifer

384

GS37 New England Fold Belt NSW Aquifer

7,060

GS49 Warrumbungle Basalt NSW Aquifer

71

GW16 Eastern Porous Rock GS17 Gunnedah–Oxley Basin MDB  NSW Aquifer

15,002

GS41 Sydney Basin MDB NSW Aquifer

2,358

GW15 Gwydir Alluvium GS24 Lower Gwydir Alluvium NSW Aquifer

14,216

Supplementary 1,113
Sub-total

15,329

GW14 Namoi Alluvium GS29 Lower Namoi Alluvium NSW Aquifer 56,519
Supplementary 2,188
Sub-total

58,707

GS40 Peel Valley Alluvium NSW Aquifer 57,932
GS47 Upper Namoi Alluvium NSW Aquifer 81,092
Supplementary 4,817
Sub-total

85,909

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

4,687

GW12 Macquarie–Castlereagh Alluvium GS14 Castlereagh Alluvium NSW Aquifer

583

GS26 Lower Macquarie Alluvium NSW Aquifer 49,463
Supplementary 119
Sub-total

49,582

GW 11 Lachlan and South Western Fractured Rock (Northern Basin) GS19 Kanmantoo Fold Belt NSW Aquifer

750

GW 11 Lachlan and South Western Fractured Rock (Southern Basin) GS10 Adelaide Fold Belt NSW Aquifer

1,780

GS 20 Lachlan Fold Belt NSW Aquifer

65,558

Salinity and water table management

0

Sub-total

65,558

GS39 Orange Basalt NSW Aquifer

9,079

GS51 Young Granite NSW Aquifer

5,823

GW7 Darling Alluvium  GS23 Lower Darling Alluvium NSW Aquifer

876

GW10 Lachlan Alluvium GS25 Lower Lachlan Alluvium NSW Aquifer 40,488
Supplementary 996
Sub-total

41,484

GW9 Murrumbidgee Alluvium GS28 Lower Murrumbidgee Alluvium (shallow; Shepparton formation and deep; Calivil formation and Renmark Group) NSW Aquifer 164,183
Supplementary 2,340
Sub-total 166,522
GW8 Murray Alluvium GS27 Lower Murray Alluvium (shallow; Shepparton formation and deep; Renmark Group and Calivil formation) NSW Aquifer 132,121
Salinity and water table management 10
Supplementary 22,735
Sub-total 154,866
GS46 Upper Murray Alluvium NSW Aquifer 37,043
GW6 Western Porous Rock GS50 Western Porous Rock NSW Aquifer 18,233
Salinity and water table management 0
Sub-total 18,233
 Sub-total New South Wales 819,370
GW2 Goulburn–Murray GS8 Goulburn–Murray (Shepparton Irrigation Region, sedimentary plain, highlands and deep) Vic. Aquifer 161,346
GW3 Wimmera–Mallee (groundwater) GS9 Wimmera–Mallee (sedimentary plain, highlands and deep) Vic. Aquifer 21,409
 Sub-total Victoria 182,755
GW5 Eastern Mount Lofty Ranges GS1 Angas Bremer (Quaternary sediments and Murray Group limestone) SA Aquifer 4,381
GS4 Marne Saunders (Murray Group limestone and Renmark Group) SA Aquifer 2,312
GW4 SA Murray GS3 Mallee (Pliocene Sands, Murray Group limestone and Renmark Group) SA Aquifer 0
GS5 Peake–Roby–Sherlock (unconfined and confined) SA Aquifer 969
 Sub-total South Australia 7,662
ACT (groundwater) GS52 ACT (groundwater) ACT Aquifer 574
 Sub-total Australian Capital Territory 574
Total 1,078,199

 

Additional information

SDL areas other than included in the tables may have values relevant to the line item; however, relevant information was not available for the 2012 Account.

With the exception of the Angas Bremer prescribed wells area and Marne Saunders prescribed water resource area, carry-over was not available either at the beginning or at the end of the year. Therefore all unused allocated groundwater was forfeited.

GS 32 NSW Border Rivers Alluvium includes both upstream Keetah Bridge and downstream Keetah Bridge alluvial groundwater sources.

GS 33 NSW Border Rivers Tributary Alluvium includes Macintyre and Ottleys Creek alluvial groundwater sources. 

GS40 Peel Valley Alluvium–aquifer reports a combined volume based on water licences Aquifer, Aquifer (general security), and Domestic and Stock.

GS28 Lower Murrumbidgee Alluvium–aquifer reports a combined volume based on water licences Aquifer, and Domestic and Stock.

Volumes reported here under GS47 Upper Namoi  Alluvium are sourced from the following groundwater sources:

  • Upper Namoi zone 1 Borambil creek
  • Upper Namoi zone 2 Cox'S Creek (Mullaley to Boggabri),
  • Upper Namoi zone 3 Mooki Valley (Breeza to Gunnedah)
  • Upper Namoi zone 4 Namoi valley (Keepit Reservoir to Gin's Leap)
  • Upper Namoi zone 5 Namoi Valley (Gin's Leap to Narrabri)
  • Upper Namoi zone 6 Tributaries of the Liverpool Range (South to Pine Road)
  • Upper Namoi zone 7 Yarraman Creek (east of Lake Goran to Mooki River)
  • Upper Namoi zone 8 Mooki Valley (Quirindi–Pine Road to Breeza)
  • Upper Namoi zone 9 Cox's Creek (up-stream Mullaley)
  • Upper Namoi zone 10 Warrah Creek
  • Upper Namoi zone 11 Maules Creek
  • Upper Namoi zone 12 Kelvin Valley.

 

Groundwater SDL areas for which data were not available for the line item

State

SDL area Code

Groundwater SDL area

Qld

GS56

Queensland MDB: Deep

Qld

GS60

Sediments above the Great Artesian Basin: Warrego–Paroo–Nebine

Qld

GS63

St George Alluvium: Warrego–Paroo–Nebine

Qld

GS66

Warrego Alluvium

NSW

GS43

Upper Gwydir Alluvium

NSW

GS30

Manilla Alluvium

NSW

GS48

Upper Namoi Tributary Alluvium

NSW

GS11

Bell Valley Alluvium

NSW

GS15

Collaburragundry–Talbragar Alluvium

NSW

GS16

Cudgegong Alluvium

NSW

GS45

Upper Macquarie Alluvium

NSW

GS12

Belubula Alluvium

NSW

GS44

Upper Lachlan Alluvium

NSW

GS21

Lake George Alluvium

NSW

GS31

Mid–Murrumbidgee Alluvium

NSW

GS13

Billabong Creek Alluvium

NSW

GS42

Upper Darling Alluvium

SA

GS2

Eastern Mount Lofty Ranges

SA

GS6

SA Murray

SA

GS7

SA Murray salt interception schemes



Quantification approach

Data source

(1) New South Wales Office of Water: water access licence statistics; (2) South Australian Department of Environment, Water and Natural Resources: water information and licence management data; and (3) Murray–Darling Basin Authority: water audit monitoring (WAM) data received from Australian Capital Territory (10 January 2013) and Victoria (21 March 2013). WAM data are stored in the Murray–Darling Basin Authority HYDRO database.

Provided by

Bureau of Meteorology (the Bureau).

Method

  • Adjustment and forfeiture of groundwater allocation was calculated by deducting the allocation extraction from allocation announcement.
  • Adjustment and forfeiture for Angas Bremer and Marne Saunders in South Australia was calculated by deducting the allocation extraction and the carry-over from allocation announcement.

Assumptions, limitations, caveats and approximations

Nil.

Uncertainty information

The uncertainty estimate was not quantified.

Comparative year

Availability of updated information resulted in the restatement of the 2010–11 year volume. The respective volumes associated with the change are detailed in the following table.

 

 

Restatement of comparative year information made for the line item 14.1 Adjustment and forfeiture of groundwater allocation
Segment 2012 Account volume at 30 June 2011 (ML) 2011 Account volume at 30 June 2011 (ML) Difference due to updated information (ML)
Northern Basin 271,847 271,847 0
Southern Basin 608,017 608,198 –181
Whole region 879,864 880,045 –181


The volume reported for Angas Bremer SDL area in the 2011 Account has been increased by 398 ML due to updated information. Allocation carry-over volume (579 ML) for Marne Saunders SDL area were not reported in the 2011 Account due to lack of information.  As a result, same volume is included in the 2012 Account and included as negative adjustment and forfeiture volume for the 2010–11 year.