Melbourne
5.4 Inter-region commitment on surface water

Supporting information

The volume presented in the water accounting statements (0 ML) represents the volume of water that can be carried over under Gippsland Water's bulk entitlement to water from the Tarago River. See Bulk Entitlement (Tarago River–Gippsland Water) Conversion Order 2009.

Under this bulk entitlement, Gippsland Water does not have an entitlement to a share of storage, and while there is an annual volumetric limit specified for this bulk entitlement, carry-over of unused water is not permitted. Therefore, the volume reported as the opening and closing balance of the inter-region commitment on surface water was zero, as shown in the following table. 

Calculation of Tarago River–Gippsland Water bulk entitlement for the 2012–13 year
Account Volume (ML)
Opening balance 1 July 2012 0
21.4 Increase of inter-region commitment on surface water                             3,2311
17.14 Surface water transfer under inter-region commitment                            (3,231)2
13.4 Adjustment and forfeiture of inter-region commitment on surface water (0)
Closing balance 30 June 2013
0

1-2 As no formal annual allocations are made for this bulk entitlement, the volume allocated in the 2012–13 year was equivalent to the diversion volume.

The Tarago River–Gippsland Water bulk entitlement allows Gippsland water to take up to 4,825 ML per year to supply the towns of Drouin and Neerim South (Bunyip catchment, within the Melbourne region) and Warragul (Latrobe catchment, adjacent to the Melbourne region), as shown in the following table.

Breakdown of the Tarago River–Gippsland Water bulk entilement
Source Annual entitlement volume (ML)
Labertouche Creek  at Labertouche Weir 480
Pederson Weir / Westernport pipeline 4,070
Tarago Reservoir (Neerim South) 275
Total 4,825