Murray-Darling Basin
14.1 Adjustment and forfeiture of groundwater allocation

Supporting Information

The volumetric value for the line item for the 2010–11 year was 880,045 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 2010–11 year
Groundwater resource plan area

State

 Volume (ML) for the 2010–11 year 

 Code

Name

GW23 Warrego – Paroo – Nebine Qld  –
GW22 Condamine–Balonne Qld  –
GW21 Moonie Qld  –
GW20 Qld Border Rivers Qld  –
GW19 NSW Border Rivers Alluvium NSW  –
GW18 New England Fractured Rock and Northern Basalts NSW  –
GW17 Eastern Porous Rock NSW  –
GW16 Gwydir Alluvium NSW 8,011
GW15 Namoi Alluvium NSW 208,545
GW14 NSW Alluvium above GAB NSW  –
GW13 NSW Sediments above GAB NSW  –
GW12 Macquarie–Castlereagh Alluvium NSW 55,291
GW11 Lachlan and South Western Fractured Rock NSW   –
GW7 Darling Alluvium NSW  –
Sub-total Northern Basin 271,847
GW11 Lachlan and South Western Fractured Rock NSW  –
GW7 Darling Alluvium  NSW  –
GW10 Lachlan Alluvium NSW 72,097
GW9 Murrumbidgee Alluvium NSW 236,551
GW8 Murray Alluvium NSW 114,887
GW6 Western Porous Rock NSW
GW2 Goulburn–Murray Vic 168,637
GW3 Wimmera–Mallee (groundwater) Vic 7,809
GW5 Eastern Mount Lofty Ranges SA 6,601
GW4 SA Murray SA 991
GW1 ACT (groundwater) ACT 625
Sub-total Southern Basin 608,198
Total for the region 880,045

 – = Data not available

 

Details of adjustment and forfeiture of groundwater allocation (excluding urban water systems) in the MDB region in the 2010–11 year
Groundwater resource plan area

Groundwater sustainable diversion limit area  

State

Entitlement class

 Volume (ML) for the 2010–11 year 

Code

Name

Gwydir Alluvium GS29 Lower Gwydir Alluvium NSW Aquifer 6,902
Supplementary 1,109
  Sub-total 8,011
Namoi Alluvium GS34 Lower Namoi Alluvium NSW Aquifer 60,295
Supplementary 3,154
  Sub-total 63,449
GS45 Peel Valley Alluvium NSW Aquifer 65,692
GS51 Upper Namoi Alluvium NSW Aquifer 74,584
Supplementary 4,820
  Sub-total 79,404
Macquarie–Castlereagh Alluvium GS31 Lower Macquarie Alluvium NSW Aquifer 55,226
Supplementary 65
  Sub-total 55,291
Lachlan Alluvium GS30 Lower Lachlan Alluvium NSW Aquifer 70,241
Supplementary 1,856
  Sub-total 72,097
Murrumbidgee Alluvium GS33 Lower Murrumbidgee Alluvium (shallow: Shepparton Formation and deep: Calivil Formation and Renmark Group) NSW Aquifer 231,920
Supplementary 4,631
  Sub-total 236,551
Murray Alluvium GS32 Lower Murray Alluvium (shallow: Shepparton Formation and deep: Renmark Group and Calivil Formation) NSW Aquifer 78,811
Supplementary 36,076
  Sub-total 114,887
 Sub-total New South Wales 695,382
Goulburn–Murray GS8 Goulburn–Broken Highlands, Loddon–Campaspe Highlands, Murray Highlands, Ovens Highlands, Ovens–Kiewa Sedimentary Plain, Victorian Riverine Sedimentary Plain (shallow: Shepparton Formation) and Victorian Riverine Sedimentary Plain (deep: Calivil and Renmark Formations) Vic Aquifer 168,637
Wimmera–Mallee (groundwater) GS9 West Wimmera (Loxton Parilla Sands), West Wimmera (Murray Group Limestone), West Wimmera (Tertiary Confined Sands), Wimmera–Avoca Highlands, Wimmera–Mallee Border Zone (Loxton Parilla Sands), Wimmera–Mallee Border Zone (Murray Group Limestone), Wimmera–Mallee Border Zone (Tertiary Confined Sand Aquifer) and Wimmera–Mallee Sedimentary Plain Vic Aquifer 7,809
 Sub-total Victoria 176,446
Eastern Mount Lofty Ranges GS1 Angas Bremer (Quaternary Sediments and Murray Group Limestone)   Aquifer 3,746
GS4 Marne Saunders (Fractured Rock, Murray Group Limestone and Renmark Group)   Aquifer 2,855
SA Murray GS5 Peake – Roby – Sherlock (unconfined and confined)   Aquifer 991
 Sub-total South Australia 7,592
ACT (groundwater) GS57 ACT (groundwater)   Aquifer 625
 Sub-total Australian Capital Territory 625
Total 880,045

Note: Sustainable diversion limit (SDL) areas other than included in the tables may have values relevant to the line item, however, relevant information was not available for the 2011 Account.

 

Additional information

With the exception of the Angas Bremer Prescribed Wells Area (PWA), carry-over was not available either at the beginning or at the end of the year. Therefore all unused allocated groundwater was forfeited.

Values for the Gwydir Alluvium water resource plan area do not distinguish if they are for GS29 Lower Gwydir Alluvium or GS47 Upper Gwydir Alluvium. The volumes for these are reported as a combined value under GS29 Lower Gwydir Alluvium.

GS29 Lower Namoi Alluvium contains volumes sourced from the Lower Namoi Groundwater Source.

GS45 Peel Valley Alluvium – aquifer reports a combined volume based on water licences – aquifer and water licences – aquifer (general security).

It was not possible to distinguish between the volumes for GS51 Upper Namoi Alluvium and GS52 Upper Namoi Tributary Alluvium. Volumes reported here under GS51 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 Dam 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 (upstream Mullaley)

  • Upper Namoi zone 10 Warrah Creek

  • Upper Namoi zone 11 Maules Creek

  • Upper Namoi zone 12 Kelvin Valley.

 

Water sharing plans were yet to commence or data were unavailable for the groundwater SDL areas listed in the following table.

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

SDL area code

Groundwater SDL area 

Qld GS63 Sediments above the Great Artesian Basin: Warrego – Paroo – Nebine
Qld GS66 St George Alluvium: Warrego – Paroo – Nebine
Qld GS69 Warrego Alluvium
Qld GS57 Condamine Fractured Rock
Qld GS61 Sediments above the Great Artesian Basin: Condamine–Balonne
Qld GS64 St George Alluvium: Condamine–Balonne (shallow and deep)
Qld GS68 Upper Condamine Basalts
Qld GS67 Upper Condamine Alluvium (Central Condamine Alluvium and Tributaries)
Qld GS62 Sediments above the Great Artesian Basin: Moonie
Qld GS65 St George Alluvium: Moonie
Qld GS58 Queensland Border Rivers Alluvium
Qld GS59 Queensland Border Rivers Fractured Rock
Qld GS60 Sediments above the Great Artesian Basin: Border Rivers
NSW GS38 NSW Border Rivers Alluvium
NSW GS39 NSW Border Rivers Tributary Alluvium
NSW GS17 Eastern Porous Rock: Macquarie–Castlereagh
NSW GS18 Eastern Porous Rock: Namoi–Gwydir
NSW GS47 Upper Gwydir Alluvium
NSW GS35 Manilla Alluvium
NSW GS37 NSW Alluvium above the Great Artesian Basin
NSW GS40 NSW Sediments above the Great Artesian Basin
NSW GS52 Upper Namoi Tributary Alluvium
NSW GS11 Bell Valley Alluvium
NSW GS15 Collaburragundry–Talbragar Alluvium
NSW GS16 Cudgegong Alluvium
NSW GS49 Upper Macquarie Alluvium
NSW GS21 Lachlan Fold Belt: Lachlan
NSW GS12 Belubula Alluvium
NSW GS48 Upper Lachlan Alluvium
NSW GS26 Lake George Alluvium
NSW GS36 Mid-Murrumbidgee Alluvium
NSW GS13 Billabong Creek Alluvium
NSW GS71 Oaklands Basin
NSW GS46 Upper Darling Alluvium
NSW GS28 Lower Darling Alluvium
Vic GS8 Goulburn–Murray
Vic GS9 Wimmera–Mallee
SA GS2 Eastern Mount Lofty Ranges
SA GS6 SA Murray
SA GS7 SA Murray Salt Interception Schemes
ACT GS56 ACT (Groundwater)

 

 

Quantification Approach

Data Source

(1) New South Wales: NSW Office of Water's Water Access Licence Statistics, (2) South Australian Department for Water: Water Information and Licence Management Administration (WILMA) database and (3) water audit monitoring (WAM) data received from Australian Capital Territory (13 January 2012) and Victoria (31 January 2012). WAM data are stored in the Murray–Darling Basin Authority HYDRO database.

Provided by

Murray–Darling Basin Authority.

Method

Adjustment and forfeiture of groundwater allocation was calculated by deducting the allocation extraction from allocation announcement.

Adjustment and forfeiture for Angas Bremer 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

The value reported as comparative year corresponds to the following line items that were reported in the 2010 Account:

  • 28.1.1 Adjustment and forfeiture of groundwater allocation – stock and domestic class

  • 28.1.3.7 Adjustment and forfeiture of groundwater allocation – other lumped holders.