Murray–Darling Basin

25.1.2.4 Allocation announcement on regulated flows – high-security, urban holder

Supporting information

The volumetric value for the line item is 209,415 ML. The following table provides a breakdown of the volume.

Allocation announced on regulated flows for high-security, urban holder category for Murray–Darling Basin (MDB) for 2009–10
Region no.	Basin Plan region name	State	Volume (ML)
6	Gwydir	NSW	60
7	Namoi	NSW	489
8	Macquarie–Castlereagh	NSW	4,385
12	Wimmera–Avoca	Vic	–
14	Goulburn–Broken	Vic	–
15	Loddon	Vic	–
16	Campaspe	Vic	–
17	Murrumbidgee	NSW/ACT	19,560
17.1	Murrumbidgee – NSW	NSW	19,560
17.2	Murrumbidgee – ACT	ACT	n/a
18	Murray	NSW/Vic/SA	184,921
18.1	Murray – NSW	NSW	3,921
18.2	Murray – Vic	Vic	–
18.3	Murray – SA	SA	181,000
	Total		209,415

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

New South Wales volumes include the licence classes of:

high-security town water supply
high-security community and education
high-security Aboriginal cultural
high-security research.

New South Wales volumes do not include the allocation announcement for the licence category major and local water utility, because those are of a specific water access entitlement (WAE) class. See Line item 25.1.4 Allocation announcement/claim recognition on regulated flows – urban water access entitlement/arrangement.

South Australian urban allocations (181,000 ML) include the Metro Adelaide (150,000 ML) and the South Australian Country Town (31,000 ML) allocations from the River Murray Consumptive Pool. The diversions for Metro Adelaide are pumped from within the MDB to Adelaide.

No information specific to this entitlement class available for Victoria. See Line item 25.1.9.7 Allocation announcement on regulated flows – other lumped holders.

In Queensland, the resource operation plans (ROPs) distinguish between ‘high and medium priority of supplemented water allocation’ (names used in Queensland, corresponding to high and general/low-security classes of WAEs, respectively, in the National Water Account 2010). In most cases, what the ROPs classify as high priority actually correspond to urban purpose. The WAM data, however, only distinguish between ‘supplemented’ and ‘unsupplemented’ entitlements, distinguishing for ‘supplemented’ only, urban purpose from all other purposes. For this reason, the 2010 Account reports all ‘supplemented’ entitlements in Queensland under ‘other lumped WAE’ class. The 2010 Account further splits Queensland ‘supplemented’ entitlements between urban purpose, reported under ‘urban holder’ (Line item 25.1.9.4), and all other purposes, reported under ‘individual irrigator holder’ (Line item 25.1.9.2) and ‘other lumped holders’ (Line item 25.1.9.7).

Quantification approach

Data source

Australian Capital Territory: Water Audit Monitoring Report 2009–10 (30 November 2010).
New South Wales: NSW 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

Allocation announcement is calculated by the states and provided to the MDBA. Allocation announcements are usually the entitlements on issue multiplied by the percentage allocation announced.

Uncertainty

New South Wales: +/–10%.
South Australia: not available.

Approximations, assumptions, caveats/limitations

The line item contains only New South Wales and South Australian data. Victorian and Queensland WAM data received by the MDBA did not allow separation into high and general/low-security classes.

National Water Account 2010