Murray–Darling Basin
17.12 Entitled diversion of allocated surface water to urban water system

The volumetric value for the line item for the 2012–13 year was 365,598 ML. The line item represents surface water allocation diversions in urban water systems associated with a number of entitlement classes in the Murray–Darling Basin (MDB) region.

The following two tables provide a summary and breakdown information on surface water allocation diversions in urban water systems within the region. 

 

Summary of Entitled diversion of allocated surface water to urban water system in the Murray–Darling Basin region during the 2012–13 year

Water resource plan (WRP) area		State/Territory	Volume (ML) for the 2012–13 year
Code	Name
SW20	Warrego–Paroo–Nebine	Qld	0
SW19	Condamine–Balonne	Qld	0
SW18	Moonie	Qld	n/a
SW17	Qld Border Rivers	Qld	0
SW16	NSW Border Rivers	NSW	537
SW12	Barwon–Darling Watercourse	NSW	0
SW13	NSW Intersecting Streams	NSW	n/a
SW15	Gwydir	NSW	3,018
SW14	Namoi	NSW	3,891
SW11	Macquarie–Castlereagh	NSW	14,117
Sub-total Northern Basin			21,563
SW10	Lachlan	NSW	7,515
SW9	Murrumbidgee	NSW	30,100
SW8	NSW Murray and Lower Darling	NSW	22,911
SW3	Northern Victoria	Vic.	54,909
SW2	Vic. Murray	Vic.	56,001
SW4	Wimmera–Malee	Vic.	5,711
SW5 and 7	SA Murray region and Eastern Mount Lofty Ranges	SA	n/a
SW6	SA Murray	SA	119,050
SW1	ACT	ACT	47,838
Sub-total Southern Basin			344,035
Total for the region			365,598

  – = no data available

Details of Entitled diversoin of allocated surface water to urban water system in the Murray–Darling Basin region during the 2012–13 year

Water resource plan area	Sustainable diversion limit area		State/Territory	Entitlement class	Volume (ML) for the 2012–13 year
	Code	Name
SW16 NSW Border Rivers	SS23	NSW Border Rivers	NSW	local water utility	537
SW15 Gwydir	SS22	Gwydir	NSW	local water utility	3,018
SW14 Namoi	SS21	Namoi	NSW	local water utility	3,891
SW11 Macquarie–Castlereagh	SS20	Macquarie–Castlereagh	NSW	local water utility	14,117
			NSW	high security town water supply	0
			NSW	Sub-total	14,117
SW10 Lachlan	SS16	Lachlan	NSW	local water utility	7,515
SW9 Murrumbidgee NSW	SS15	Murrumbidgee NSW	NSW	local water utility	10,331
				high security town water supply	19,769
				Sub-total	30,100
SW8 NSW Murray and Lower Darling	SS18	Lower Darling	NSW	local water utility	1,200
	SS14	NSW Murray	NSW	local water utility	18,518
				high security town water supply	3,193
				Sub-total	21,711
Sub-total New South Wales					82,089
SW3 Northern Victoria	SS4	Ovens	Vic.	urban–regulated	3,751
	SS5	Broken	Vic.	urban–regulated	157
	SS6	Goulburn	Vic.	urban–regulated	22,531
	SS7	Campaspe	Vic.	urban–regulated	24,873
	SS8	Loddon	Vic.	urban–regulated	3,597
SW2 Vic. Murray	SS2	Vic. Murray	Vic.	urban–regulated	56,001
SW4 Wimmera–Mallee	SS9	Wimmera–Mallee	Vic.	urban–regulated	5,711
Sub-total Victoria					116,621
SW7 Eastern Mount Lofty Ranges	SS13	Eastern Mount Lofty Ranges	SA	urban	–
	SS12	Marne Saunders	SA	urban	–
SW5 SA Murray Region	SS10	SA non-prescribed areas	SA	urban	–
SW6 SA River Murray	SS11	SA Murray	SA	class 2: other urban (country town) water supply	37,377
				class 6: Metro-Adelaide water supply scheme	81,673
				combined classes urban	0
				Sub-total	119,050
Sub-total South Australia					119,050
SW1 ACT	SS1	ACT	ACT	urban–regulated	47,838
Total for the region					365,598

 – = no data available

 

Queensland

In Queensland, the resource operation plans (ROPs) distinguish between high and medium priority of supplemented water allocation. The water audit monitoring (WAM) data, which are the data source for the 2013 Account, only distinguish between supplemented and unsupplemented entitlements. Both urban and non-urban supplemented entitlements are included within supplemented entitlement class. Supplemented urban and supplemented non-urban volumes on allocations, diversions and other attributes were received together and not possible to be separated out for two purposes. Therefore, surface water allocation diversions for both urban and non-urban supplemented entitlements are included in line item 17.11 Entitled diversion of allocated surface water to users.     

Toowoomba regional council has entitlements within the Moreton water resource plan area that is within the South East Queensland region. Toowoomba regional council receives water from Perseverance, Cressbrook, and Wivenhoe storages (through Cressbrook Reservoir) for urban purposes within the MDB region. This water supplements the Toowoomba regional council's diversions within the MDB region. This transfer arrangement delivers water directly into the Toowoomba regional council's distribution network, which is excluded from the MDB region. The transferred volume 6,508 ML, for the year 2012–13 from Cressbrook and Perseverance storages was therefore not reported in the water accounting statements for the MDB region.

New South Wales

New South Wales volumes for this line item contain the diversions made under major and local water utility classes as well as the high security town water supply class. Water use for cultural, industrial, research, community and education activities have been categorised as non-urban.  Therefore, related information is included in line item 17.11 'Entitled diversion of allocated surface water to users'.

Victoria

There was 18 ML Goulburn allocation diversion transferred to Melbourne via the Killingworth Pump (north-south pipeline), and 318 ML transferred from Goulburn system via the Goldfields Superpipe to Ballarat during the 2012–13 year.

South Australia

South Australian urban diversions include the Metro-Adelaide and the South Australian country town allocation diversions. The diversions to Metro-Adelaide are part of the River Murray entitlements and are pumped from within the MDB region to Adelaide.

Australian Capital Territory

The line item includes regulated diversions made from the Murrumbidgee River for urban purposes.

 

(1) New South Wales Office of Water's Water Accounting section; (2) ACTEW Water: production records; and (3)  Murray–Darling Basin Authority: WAM data received from Queensland (4 February 2013), South Australia (15 March 2013), and Victoria (21 March 2013). WAM data are stored in the Murray–Darling Basin Authority HYDRO database.

Bureau of Meteorology.

• The New South Wales Office of Water supplied data are prepared on a water balance approach. It implies that the movement of values during the year will balance the opening and closing balances. The forfeitures and adjustments have been checked to ensure that the closing balance reconciles.
• ACTEW Water supplied volume was based on metered volumes diverted from the Bendora, Corin, Cotter, and Googong reservoirs together with the volume diverted from the Murrumbidgee River.
• The other data supplied for this line item result from an estimate based on user meter readings.

• Uncertainty reported for diversion at the abstraction point account for possible errors in the data collection process.
• The estimates of accuracy of the diversion are indicative accuracy of diversions at the abstraction point on the river only.

 

WAM uncertainty percentages

Percentage  (%)	Accuracy description
5	metered diversions
10	estimate based on user meter readings
20	detailed estimate based on regional surveys
40	estimate based on user returns

 

The following table outlines the WAM uncertainty percentage for each entitlement class for each jurisdiction.

 

Uncertainty percentages for each class within jurisdiction

State/Territory	Entitlement class	Uncertainty (%)
Qld	Condamine–Balonne	5
Qld	Border Rivers	5
Qld	Moonie	n/a
Qld	Nebine	n/a
Qld	Warrego	5
Qld	Paroo	n/a
NSW	combined New South Wales regulated data  reliability	10
Vic.	Broken	5–10
Vic.	Goulburn	5
Vic.	Campaspe	5
Vic.	Loddon	5
Vic.	Ovens	5
Vic.	Murray	5–10
Vic.	Wimmera–Mallee	5
SA	class 2 and class 6	5
ACT	All classes	5