Murray–Darling Basin

26.1.2.7 Adjustment and forfeiture of allocation on regulated flows – high-security, other lumped holders

Supporting information

The volumetric value for the line item is 25,427 ML.

Adjustment and forfeiture of allocation on regulated flows for high-security, other lumped holder category in the Murray–Darling Basin for 2009–10
Region no.	Region name	State	Volume (ML)
5	Border Rivers	Qld/NSW	741
5.1	Border Rivers – Qld	Qld	n/a
5.2	Border Rivers – NSW	NSW	741
6	Gwydir	NSW	463
7	Namoi	NSW	861
8	Macquarie–Castlereagh	NSW	3,061
10	Lower Darling	NSW	0
11	Lachlan	NSW	1,613
17	Murrumbidgee	NSW/ACT	2,356
17.1	Murrumbidgee – NSW	NSW	2,356
17.2	Murrumbidgee – ACT	ACT	n/a
18	Murray	NSW/Vic/SA	16,332
18.1	Murray – NSW	NSW	16,332
18.2	Murray – Vic	Vic	n/a
18.3	Murray – SA	SA	n/a
	Total		25,427

n/a = not applicable

New South Wales volumes include the licence class of high-security allocation adjustment and forfeiture volumes for:

bulk (i.e. within an irrigation trust) and individual irrigation
the environment
where the purpose is generally not known.

No information specific to this entitlement class available for Victoria. See Line item 26.1.9.7 Adjustment and forfeiture of allocation on regulated flows – other lumped holders for data on all classes lumped together.

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 water access entitlements, respectively, in the National Water Account 2010). In most cases, what the ROPs classify as high priority actually corresponds to urban purpose. The water audit monitoring (WAM) report data, however, only split between ‘supplemented’ and ‘unsupplemented’ entitlements, distinguishing for ‘supplemented’ only, urban purpose from all other purposes. For this reason, the National Water Account 2010 reports all ‘supplemented’ entitlements in Queensland under ‘other lumped water access entitlement (WAE)’ class. The National Water Account 2010 further splits Queensland ‘supplemented’ entitlements between urban purpose, reported under ‘urban holder’ (Line item 26.1.9.4), and all other purposes, reported under ‘other lumped holders’ (Line item 26.1.9.7).

No other state has high or general/low-security classes of entitlements.

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

Murray–Darling Basin Authority (MDBA).

Method

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

The uncertainty value for the New South Wales data provided in the line item is +/–10%.

Approximations, assumptions, caveats/limitations

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

National Water Account 2010