Murray–Darling Basin
14.1 Adjustment and forfeiture of groundwater allocation

Supporting information
Quantification approach

Supporting information

The volumetric value for the line item for the 2012–13 year was 1,205,242 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 2012–13 year
Groundwater resource plan area		State/Territory	Volume (ML) for the 2012–13 year
Code	Name	State/Territory	Volume (ML) for the 2012–13 year
GW22	Warrego–Paroo–Nebine	Qld	0
GW21	Condamine–Balonne	Qld	42,000
GW20	Moonie	Qld	0
GW19	Qld Border Rivers	Qld	10,725
GW18	New South Wales Border Rivers Alluvium	NSW	14,854
GW17	New England Fractured Rock and Northern Basalts	NSW	10,095
GW16	Eastern Porous Rock	NSW	13,696
GW15	Gwydir Alluvium	NSW	8,604
GW14	Namoi Alluvium	NSW	127,590
GW13	New South Wales Great Artesian Basin Shallow	NSW	4,067
GW12	Macquarie–Castlereagh Alluvium	NSW	67,749
GW11	Lachlan and South Western Fractured Rock	NSW	0
GW7	Darling Alluvium	NSW	–
*Sub-total Northern Basin*			*299,379*
GW11	Lachlan and South Western Fractured Rock	NSW	72,829
GW7	Darling Alluvium	NSW	928
GW10	Lachlan Alluvium	NSW	172,811
GW9	Murrumbidgee Alluvium	NSW	147,488
GW8	Murray Alluvium	NSW	171,599
GW6	Western Porous Rock	NSW	24,034
GW2	Goulburn–Murray	Vic.	277,523
GW3	Wimmera–Mallee (groundwater)	Vic.	25,013
GW5	Eastern Mount Lofty Ranges	SA	7,217
GW4	SA Murray Region	SA	6,056
GW1	Australian Capital Territory (groundwater)	ACT	366
*Sub-total Southern Basin*			*905,863*
Total for the region			1,205,242

Details of adjustment and forfeiture of groundwater allocation (excluding urban water systems) in the MDB region in the 2012–13 year
Groundwater resource plan area	Groundwater sustainable diversion limit area		State/territory	Entitlement class	Volume (ML) for the 2012–13 year
Groundwater resource plan area	Code	Name	State/territory	Entitlement class	Volume (ML) for the 2012–13 year
GW22 Warrego–Paroo–Nebine	GS60, GS63, GS66	Sediments above the Great Artesian Basin: Warrego-Paroo-Nebine St George Alluvium: Warrego-Paroo-Nebine Warrego Alluvium	Qld	aquifer	0
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	42,000
GW20 Moonie	GS59 and GS62	Sediments above the GAB: Moonie and St George Alluvium: Moonie	Qld	aquifer	0
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	10,725
*Sub-total Queensland*					*52,725*
GW18 New South Wales Border Rivers Alluvium	GS32	NSW Border Rivers Alluvium	NSW	aquifer	13,296
GW18 New South Wales Border Rivers Alluvium	GS33	NSW Border Rivers Tributary Alluvium	NSW	aquifer	1,558
GW17 New England Fractured Rock and Northern Basalts	GS18	Inverell Basalt	NSW	aquifer	3,076
	GS22	Liverpool Ranges Basalt	NSW	aquifer	0
	GS37	New England Fold Belt	NSW	aquifer	7,019
	GS49	Warrumbungle Basalt	NSW	aquifer	0
GW16 Eastern Porous Rock	GS17	Gunnedah–Oxley Basin MDB	NSW	aquifer	13,696
GW16 Eastern Porous Rock	GS41	Sydney Basin MDB	NSW	aquifer	0
GW15 Gwydir Alluvium	GS24	Lower Gwydir Alluvium	NSW	aquifer	7,728
				supplementary	876
				*Sub-total*	*8,604*
GW14 Namoi Alluvium	GS29	Lower Namoi Alluvium	NSW	aquifer	30,911
				supplementary	1,389
				*Sub-total*	*32,301*
	GS30	Manilla Alluvium	NSW	aquifer	3,328
	GS40	Peel Valley Alluvium	NSW	aquifer	51,094
	GS47	Upper Namoi Alluvium	NSW	aquifer	36,748
				supplementary	1,304
				*Sub-total*	*38,052*
	GS48	Upper Namoi Tributary Alluvium	NSW	aquifer	2,815
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	4,067
GW12 Macquarie–Castlereagh Alluvium	GS11	Bell Valley Alluvium	NSW	aquifer	3,196
	GS14	Castlereagh Alluvium	NSW	aquifer	583
	GS15	Collaburragundry–Talbragar Alluvium	NSW	aquifer	3,977
	GS16	Cudgegong Alluvium	NSW	Aquifer	9,659
	GS26	Lower Macquarie Alluvium	NSW	aquifer	33,201
				supplementary	46
				*Sub-total*	*33,248*
	GS45	Upper Macquarie Alluvium	NSW	aquifer	17,087
GW11 Lachlan and South Western Fractured Rock (Northern Basin)	GS19	Kanmantoo Fold Belt	NSW	aquifer	0
GW11 Lachlan and South Western Fractured Rock (Southern Basin)	GS10	Adelaide Fold Belt	NSW	aquifer	0
	GS 20	Lachlan Fold Belt	NSW	aquifer	58,715
				salinity and water table management	0
				*Sub-total*	*58,715*
	GS39	Orange Basalt	NSW	aquifer	8,904
	GS51	Young Granite	NSW	aquifer	5,209
GW7 Darling Alluvium	GS23	Lower Darling Alluvium	NSW	aquifer	928
GW10 Lachlan Alluvium	GS12	Belubula Alluvium	NSW	aquifer	6,847
	GS25	Lower Lachlan Alluvium	NSW	aquifer	32,460
				supplementary	1,476
				*Sub-total*	*33,936*
	GS44	Upper Lachlan Alluvium	NSW	aquifer	132,028
GW9 Murrumbidgee Alluvium	GS28	Lower Murrumbidgee Alluvium (shallow; Shepparton formation and deep; Calivil formation and Renmark Group)	NSW	aquifer	104,132
				supplementary	1,520
				*Sub-total*	*105,652*
	GS31	Mid Murrumbidgee Alluvium	NSW	aquifer	41,836
GW8 Murray Alluvium	GS13	Billabong Creek Alluvium	NSW	aquifer	2,850
				salinity and water table management	1,500
				*Sub-total*	*4,350*
	GS27	Lower Murray Alluvium (shallow; Shepparton formation and deep; Renmark Group and Calivil formation)	NSW	aquifer	106,460
				salinity and water table management	20,010
				supplementary	11,642
				*Sub-total*	*138,112*
	GS46	Upper Murray Alluvium	NSW	aquifer	29,137
GW6 Western Porous Rock	GS50	Western Porous Rock	NSW	aquifer	13,334
				salinity and water table management	10,700
				*Sub-total*	*24,034*
*Sub-total New South Wales*					*836,342*
GW2 Goulburn–Murray	GS8	Goulburn–Murray (Shepparton Irrigation Region, sedimentary plain, highlands and deep)	Vic.	aquifer	277,523
GW3 Wimmera–Mallee (groundwater)	GS9	Wimmera–Mallee (sedimentary plain, highlands and deep)	Vic.	aquifer	25,013
*Sub-total Victoria*					*302,536*
GW5 Eastern Mount Lofty Ranges	GS1	Angas Bremer (Quaternary sediments and Murray Group limestone)	SA	aquifer	4,373
GW5 Eastern Mount Lofty Ranges	GS4	Marne Saunders (Murray Group limestone and Renmark Group)	SA	aquifer	2,844
GW4 SA Murray Region	GS3	Mallee (Pliocene Sands, Murray Group limestone and Renmark Group)	SA	aquifer	5,327
GW4 SA Murray Region	GS5	Peake–Roby–Sherlock (unconfined and confined)	SA	aquifer	729
*Sub-total South Australia*					*13,273*
ACT (groundwater)	GS52	ACT (groundwater)	ACT	aquifer	366
*Sub-total Australian Capital Territory*					*366*
Total					1,205,242

Additional information

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 2013 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
NSW	GS43	Upper Gwydir Alluvium
NSW	GS21	Lake George 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

New South Wales Office of Water: water access licence statistics; South Australian Department of Environment, Water and Natural Resources: water information and licence management data; Murray–Darling Basin Authority: water audit monitoring (WAM) data received from Australian Capital Territory (5 February 2014), Queensland (5 February 2014), and Victoria (14 February 2014). WAM data are stored in the Murray–Darling Basin Authority HYDRO database.

Provided by

Bureau of Meteorology.

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.

Murray–Darling Basin 14.1 Adjustment and forfeiture of groundwater allocation