Murray–Darling Basin

                                                                                                   

13.6.3 Delivery of water transferred-in under interbasin agreement to connected surface water

                             

Supporting information   


The volumetric value for the line item is 1,860,991 ML. The following table provides a breakdown of the volume.

Summary of water transferred into the Murray–Darling Basin (MDB) region in 2009–10

Region no.

Region name

Snowy Hydro releases (ML)

Transfers from Glenelg River (ML)

Total (ML)

12

Wimmera–Avoca

n/a

5,991

5,991

17

Murrumbidgee

705,000

n/a

705,000

17.1

Murrumbidgee – NSW

705,000

n/a

705,000

18

Murray

1,150,000

n/a

1,150,000

18.1

Murray – NSW

575,000

n/a

575,000

18.2

Murray – Vic

575,000

n/a

575,000

 

Total

1,855,000

5,991

1,860,991

n/a = not applicable

The line item comprises water received in the MDB region from a Glenelg River water transfer and Snowy Hydro releases.

Glenelg River water transfer

Under a Victorian bulk entitlement, Grampians Wimmera–Mallee Water is able to transfer water to the Wimmera–Mallee supply system (within the MDB) from:

  • the Glenelg River upstream of and including Rocklands Reservoir
  • the first and second Wannon Creeks upstream of and including the weirs.

The volume transferred during 2009–10 is 5,991 ML.

Claim for Snowy Hydro releases

Snowy Hydro Ltd delivers water from the Snowy Mountains Scheme (outside of the MDB) to the Tumut River and River Murray, under the terms of the Snowy Water Licence. This value is included as a transfer. The total volume delivered by Snowy Hydro to the Tumut River and River Murray during the 2009–10 year is 1,855,000 ML.

Line item 7.1 Interbasin claim on water – remaining explains in more detail the arrangements for the calculation of the required annual release (RAR).

A water transfer not recognised in the water accounting statements

Toowoomba regional council has entitlements within the Moreton Water Resource Plan Area that is outside of the MDB region. Toowoomba regional council takes water from Cressbrook and Perseverance reservoirs on Cressbrook Creek for urban purposes within the MDB. This supplements the take that Toowoomba regional council obtains from within the MDB that is shown in Line item 14.7.9.4 Allocation diversion of regulated flows – urban water holder. The volume delivered during 2009–10 is 6,000 ML.

This transfer arrangement delivers water directly into the Toowoomba regional council’s distribution network, which is excluded from the MDB region. Therefore the corresponding volume will not be reported in the water accounting statements.

Quantification approach   


Data source

Snowy Hydro transfers: Snowy Hydro Limited Water Operations Report 2009–10.

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 were derived from measured data.

Other data are measured or extracted from reports by Snowy Hydro Ltd.

Uncertainty

Uncertainty is ungraded.

Approximations, assumptions, caveats/limitations

Nil.