New South Wales Consolidated Regulations

WATER SHARING PLAN FOR THE LACHLAN REGULATED RIVER WATER SOURCE 2003 - REG 62

62 Water delivery and channel capacity constraints

Where necessary for determining extraction components, managing water releases or providing water under access licences, the maximum delivery capacity or operating channel capacity shall be determined and specified in accordance with procedures established by the Minister, taking into account:

(a) inundation of private land or interference with access,

(b) the effects of inundation on the floodplain and associated wetlands,

(c) the transmission losses expected to occur,

(d) capacities of water management structures controlled by the Department, and

(e) the SWMOP targets.

Operation of the system at the commencement of this Plan has the following constraints on maximum flows:

- 6,600 ML/day between Wyangala Dam and Jemalong Weir (the valve capacity of Wyangala Dam)

- 2,600 ML/day between Jemalong Weir and Willandra Weir,

- 390 ML/day in the Wallamundry Creek system,

- 1,200 ML/day in Goobang/Bumbuggan Creeks,

- 500 ML/day in Willandra Creek,

- 2,400 ML/day between Willandra Weir and Merrowie Creek,

- 1,500 ML/day between Merrowie Creek and Torrigany split,

- 420 ML/day between Torrigany split and Booligal, and

- 310 ML/day downstream of Booligal.