Murray–Darling Basin

14.6.5.6 Diversion of unregulated flows – other lumped holders

Supporting information

The volumetric value for the line item is 528,625 ML (see the following table).

Diversions of unregulated flows by other lumped holders in the Murray–Darling Basin (MDB) for 2009–10
Region no.	Region name	State	Volume(ML)	Uncertainty
1	Paroo	Qld/NSW	–	–
1.1	Paroo – Qld	Qld	n/a	n/a
1.2	Paroo – NSW	NSW	–	–
2	Warrego	Qld/NSW	–	–
2.1	Warrego – Qld	Qld	n/a	n/a
2.2	Warrego – NSW	NSW	–	–
3	Condamine–Balonne	Qld/NSW	–	–
3.1	Condamine–Balonne – Qld	Qld	n/a	n/a
3.2	Condamine–Balonne – NSW	NSW	–	–
4	Moonie	Qld/NSW	–	–
4.1	Moonie – Qld	Qld	n/a	n/a
4.2	Moonie – NSW	NSW	–	–
5	Border Rivers	Qld/NSW	51,477	10–40%
5.1	Border Rivers – Qld	Qld	n/a	n/a
5.2	Border Rivers – NSW	NSW	51,477	10–40%
6	Gwydir	NSW	15,843	10–40%
7	Namoi	NSW	122,706	10–40%
8	Macquarie–Castlereagh	NSW	50,312	10–40%
9	Barwon–Darling	NSW	137,254	40%
10	Lower Darling	NSW	n/a	n/a
11	Lachlan	NSW	15,872	10–40%
12	Wimmera–Avoca	Vic	–	–
13	Ovens	Vic	3,052	18%
14	Goulburn–Broken	Vic	10,893	5%
15	Loddon	Vic	93	5%
16	Campaspe	Vic	137	40%
17	Murrumbidgee	NSW/ACT	87,842	10–40%
17.1	Murrumbidgee – NSW	NSW	87,842	10–40%
17.2	Murrumbidgee – ACT	ACT	n/a	n/a
18	Murray	NSW/Vic/SA	33,144	10–40%
18.1	Murray – NSW	NSW	27,658	10–40%
18.2	Murray – Vic	Vic	5,486	–
18.3	Murray – SA	SA	n/a	n/a
19	Eastern Mount Lofty Ranges	SA	–	–
	Total		528,625

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

In Victoria, all unregulated diversions are shown here except for unregulated urban diversions, which are shown under Line item 14.6.2 Diversion of unregulated flows – urban water access entitlement.

New South Wales data includes supplementary diversions in the regulated system and unregulated diversions in the unregulated systems (see the following table).

New South Wales data includes within the Macquarie–Castlereagh region (3,414 ML) that was diverted from the unregulated Fish River to the Sydney Water Corporation (for use outside of the MDB region) via the Fish River Supply Scheme under a commercial arrangement.

Source of unregulated diversions within New South Wales regions
Region	Unregulated diversions in unregulated system	Supplementary/off- allocation diversions in regulated system	Total
Border Rivers	13,695	37,782	51,477
Gwydir	10,317	5,526	15,843
Namoi	78,075	44,631	122,706
Macquarie–Castlereagh	38,702	11,610	50,312
Barwon–Darling	137,254	n/a	137,254
Lower Darling	n/a	–	–
Lachlan	15,342	530	15,872
Murrumbidgee – NSW	64,290	23,552	87,842
Murray – NSW	27,658	–	27,658
Total	385,333	123,631	508,964

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

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

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

See the above table entitled ‘Diversions of unregulated flows by other lumped holders in the MDB region for 2009–10’ for the uncertainty estimates.

Approximations, assumptions, caveats/limitations

Estimates of uncertainty of the diversions are indicative accuracy of bulk diversions only and do not provide an uncertainty of diversions at the diversion point.

National Water Account 2010