WaterNSW set to pump from Tandure to Wetherell

WaterNSW set to pump from Tandure to Wetherell

07 March 2018

WaterNSW is preparing to transfer water from Lake Tandure into Lake Wetherell as the Menindee lakes system total storage volume falls below 17% of capacity.

Without the prospect of significant inflows into the lakes WaterNSW is preparing to implement the next phase in its Lower Darling Operations Plan, designed to extend supply to landholders and the riverine habitat downstream of the lakes.

WaterNSW could begin pumping water from Lake Tandure into Lake Wetherell by the end of the month (March) with work expected on an earthen block needed to separate these lakes as soon as next week.

Under a worst-case scenario of zero inflows, the WaterNSW operations plan ensures the Menindee lakes would still provide water for Lower Darling landholders and environment until at least December 2018, and provide supply to Broken Hill until at least August 2019 if needed.

Without significant inflows, the plan’s next major action is transferring water from Lake Pamamaroo (currently at 65% of capacity, and holding 181 gigalitres) to Copi Hollow, with the construction of an earthen block bank to separate the two bodies of water by August.

Pumping from Pamamaroo into Copi Hollow would commence immediately with extractions to supply Essential Water customers likely by mid-December under the zero-inflow scenario.

Releases into the Lower Darling continue at a rate of ~200 megalitres per day (ML/day), with flows at Burtundy of 35ML/day. The operations plan will endeavour to maintain at least 20ML/day at Burtundy should dry conditions persevere.

WaterNSW is in constant contact with the key Lower Darling advisory group of landholders to ensure that a minimal flow is maintained without exceeding the agreed target flow.

Download the full copy of the drought operations plan (PDF, 1441.02 KB).

Contact: Tony Webber

Phone: 0428 613 478

61.7
Wednesday 19 December
1.1
1,592,478 ML
2,581,850 ML
10,573 ML
1,511 ML
17,664 ML
Wednesday 19 December