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Murray–Darling Basin

                                                                                                   

14.6.5.2 Diversion of unregulated flows – individual irrigator holder

                             

Supporting information   


Unregulated flow volume diverted under individual irrigator holder category during 2009–10 is 688,994 ML (see the following table for the breakdown of the volume).

Unregulated flow volume diverted under individual irrigator holder category in the Murray–Darling Basin during 2009–10

Region no.

Region name

State

Volume(ML)

Uncertainty

1

Paroo

Qld/NSW

 70

5%

1.1

Paroo – Qld

Qld

 70

5%

1.2

Paroo – NSW

NSW

–

–

2

Warrego

Qld/NSW

 10,500

20%

2.1

Warrego – Qld

Qld

 10,500

20%

2.2

Warrego – NSW

NSW

–

–

3

Condamine–Balonne

Qld/NSW

 565,800

20–40%

3.1

Condamine–Balonne – Qld

Qld

 565,800

20–40%

3.2

Condamine–Balonne – NSW

NSW

–

–

4

Moonie

Qld/NSW

 27,600

20–40%

4.1

Moonie – Qld

Qld

 27,600

20–40%

4.2

Moonie – NSW

NSW

–

–

5

Border Rivers

Qld/NSW

 83,600

5–40%

5.1

Border Rivers – Qld

Qld

 83,600

5–40%

5.2

Border Rivers – NSW

NSW

–

–

6

Gwydir

NSW

–

–

7

Namoi

NSW

–

–

8

Macquarie–Castlereagh

NSW

–

–

9

Barwon–Darling

NSW

–

–

10

Lower Darling

NSW

–

–

11

Lachlan

NSW

–

–

12

Wimmera–Avoca

Vic

–

–

13

Ovens

Vic

–

–

14

Goulburn–Broken

Vic

–

–

15

Loddon

Vic

–

–

16

Campaspe

Vic

–

–

17

Murrumbidgee

NSW/ACT

 1,424

10%

17.1

Murrumbidgee – NSW

NSW

–

–

17.2

Murrumbidgee – ACT

ACT

 1,424

10%

18

Murray

NSW/Vic/SA

–

–

18.1

Murray – NSW

NSW

–

–

18.2

Murray – Vic

Vic

–

–

18.3

Murray – SA

SA

 –

–

19

Eastern Mount Lofty Ranges

SA

–

–

 

Total

 

688,994

 

– = no data available

Further details for information provided in the above table are given below:

  • Australian Capital Territory data includes private irrigator diversions.
  • In New South Wales, there is no separate information available in the unregulated system for irrigation, stock and domestic, urban or any other class or purpose. Therefore all unregulated diversions are shown under Line item 14.6.5.6 Diversion of unregulated flows – other lumped holder.
  • In New South Wales, there is no separate information available in the regulated system to explain how supplementary or off-allocation diversions were used. Therefore these unregulated diversions are shown under Line item 14.6.5.6 Diversion of unregulated flows – other lumped holder.
  • Queensland data includes unsupplemented irrigation water allocation with flow conditions, unsupplemented irrigation allocation without flow conditions and unsupplemented water licences diversions. The overland flow take estimation is shown under Line item 14.4 Overbank flood spilling.
  • In Victoria, unregulated irrigation shown in water audit monitoring (WAM) may also include unregulated diversions for other purposes such as stock and domestic, industrial and commercial. Therefore, all unregulated diversions are shown under Line item 14.6.5.6 Diversion of unregulated flows – other lumped holders.

Quantification approach   


Data source

  • Australian Capital Territory: Water Audit Monitoring Report 2009–10 (30 November 2010).
  • New South Wales: Water Audit Monitoring Report 2009–10 (11 February 2011).
  • 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 were stored in the Murray–Darling Basin Authority (MDBA) HYDRO database.

Data provider

MDBA.

Method

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

Uncertainty

See the above table entitled ‘Unregulated flow volume diverted under individual irrigator holder category in the MDB region during 2009–10’ for the uncertainty estimates.

Approximations, assumptions, caveats/limitations

Nil.