Murray–Darling Basin

25.1.9.7 Allocation announcement on regulated flows – other lumped holders

Supporting information

The volumetric value for the line item is 2,617,313 ML.

Allocation announcement on regulated flows for other lumped holder category in the Murray–Darling Basin for 2009–10
Region no.	Region name	State	Volume(ML)	Uncertainty
11	Lachlan	NSW	999	10%
12	Wimmera–Avoca	Vic	121,400	–
13	Ovens	Vic	33,997	–
14	Goulburn–Broken	Vic	721,292	–
15	Loddon	Vic	4,600	–
16	Campaspe	Vic	215	–
17	Murrumbidgee	NSW/ACT	801	10%
17.1	Murrumbidgee – NSW	NSW	801	10%
17.2	Murrumbidgee – ACT	ACT	n/a	n/a
18	Murray	NSW/Vic/SA	1,734,009	10%
18.1	Murray – NSW	NSW	0	10%
18.2	Murray – Vic	Vic	1,292,045	–
18.3	Murray – SA	SA	441,964	–
	Total		2,617,313

– = no data available; n/a = not applicable

South Australia data includes allocation announcements for all other purposes (including high-security environmental purposes and individual irrigation holders) other than urban, and stock and domestic use.

Calculation of allocation announcements within the region – South Australia
Region	All other purposes of water from the River Murray allocation (ML)	Stock and domestic allocation (ML)	Lower Murray swamps allocation (ML)	Total environmental water for SA allocation (ML)	Total (ML)
Murray –SA	397,669	–20,000	29,164	35,131	441,964

Victorian data include the regulated system total allocation announcements within each region. It was not possible to separate allocation announcements for different purposes such as urban, irrigation and environment, or between high-reliability and low-reliability classes of licence.

Victoria allocation announcements are shown in the source valley, even though the water was taken in a different destination valley. Therefore all entitlements in the Goulburn–Broken region have their allocation announcements shown in the Goulburn–Broken region, rather than the destination valleys of the Loddon or the Campaspe.

Victoria information included within the Goulburn–Broken allocation announcement is provision for Melbourne. No separate value was available to be disclosed.

Calculation of allocation announcements within the Ovens region
Region	Regulated allocation – irrigation (ML)	Regulated allocation – held environmental water	Regulated allocation – urban (ML)	Total (ML)
Ovens	26,095	70	7,832	33,997

Calculation of allocation announcements within the remaining Victoria region
Region	WAM (ML)	Allocations delivered to/from other regions (ML)	Environmental allocation (ML)	Unregulated allocation (ML)	Allocation adjustment due to carryover (ML)	Total (ML)
Goulburn–Broken	464,373	233,133	21,069	–7,379	10,096	721,292
Loddon	109,122	–103,910	60	–1,416	744	4,600
Campaspe	127,386	–129,223	0	0	2,052	2,15
Murray – Vic	1,093,321	0	36,659	–1,973	164,038	1,292,045

Values for which minus sign is provided are deducted in calculating the total value.

WAM = Water Audit Monitoring

Quantification approach

Data source

Australian Capital Territory: Water Audit Monitoring Report 2009–10 (30 November 2010).
New South Wales: New South Wales Office of Water’s Water Accounting section.
Queensland: Water Audit Monitoring Report 2009–10 (31 January 2011).
South Australia: Water Audit Monitoring Report 2009–10 (22 February 2011).
Victoria: Water Audit Monitoring Report 2009–10 (19 January 2011).

Note: Water audit monitoring (WAM) report data are stored in the Murray–Darling Basin Authority (MDBA) HYDRO database.

Data provider

MDBA.

Method

WAM-supplied data are either measured, modelled or estimated.
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.

Uncertainty

WAM-sourced data does not have any uncertainty information on allocation remaining. The uncertainty of the remaining data is shown in supporting information (the table ‘Allocation announcement/claim recognition on regulated flows for other lumped holder category for Murray–Darling Basin for 2009–10’).

Approximations, assumptions, caveats/limitations

For South Australia, it was not possible to separate allocation remaining for different purposes such as irrigation, high-security environmental purposes, industrial and recreation. Therefore, allocation remaining was treated as ‘other lumped holder’. All other remaining line items were treated in the same manner to enable reconciliation of the line item and ensure consistency of treatment. Data were available to separate irrigation and environment for allocation announcement and allocation diversion.
For Victoria, it was not possible to separate allocation remaining for different purposes such as urban, irrigation and environment, or between high-reliability and low-reliability classes of licence. Therefore, allocation remaining was treated as ‘other lumped holder’. All other remaining line items were treated in the same manner to enable reconciliation of the line item and ensure consistency of treatment. Data were available to separate urban, irrigation and environment, and between high-reliability and low-reliability classes of licence for allocation announcement, allocation diversion and allocation adjustment and forfeiture.

National Water Account 2010