Table 9: Summary of proposed environmental water-order volumes and delivery strategies Asset Volume Range for water order (site Volume of Additional water required, e.g. Other assets incidentally watering only) replenishment piggybacking watered (Note: depends on flows water storage source) Current operational flows between Operational flows None. Low-mid elevation wetlands Lachlan River channel Yes 50–150 ML/d provides for some and unregulated and floodplain. ecological objectives to be met at tributary flows sites to Booligal. undetermined. Weir drownouts: Cottons: 64,750–129,500 ML Condo: 28,700–57,400 ML Willandra: 59,600–119,000 ML. Burrawang West Up to 420 ML. NA NA None Lagoon Yarnel Lagoon Up to 360 ML (9,360 ML if not 9,000 ML Yes Wallaroi Creek riparian areas. piggybacked). Up to 3,000 ML (15,500 ML if not Return flows from Booberoi Creek Booberoi Creek 12,500 ML Yes to the Lachlan River downstream piggybacked). of Lake Cargelligo. Lake Brewster 1,500 ML to >5,000 ML Part of Lake NA May be used to re-regulate Brewster water environmental water. quality improvement. Willandra Creek 4,000 ML up to volume to be 12,000 ML Yes Morrisons Lake determined (at least 16,000 ML if not piggybacked).
Table 9: Summary of proposed environmental water-order volumes and delivery strategies Asset Volume Range for water order (site watering only) Volume of replenishment flows Additional water required, e.g. piggybacking Other assets incidentally watered (Note: depends on water storage source) Lachlan River channel Current operational flows between 50–150 ML/d provides for some ecological objectives to be met at sites to Booligal. Weir drownouts: Cottons: 64,750–129,500 ML Condo: 28,700–57,400 ML Willandra: 59,600–119,000 ML. Operational flows and unregulated tributary flows undetermined. Yes None. Low-mid elevation wetlands and floodplain. Burrawang West Lagoon Up to 420 ML. NA NA None Yarnel Lagoon Up to 360 ML (9,360 ML if not piggybacked). 9,000 ML Yes Wallaroi Creek riparian areas. Booberoi Creek Up to 3,000 ML (15,500 ML if not piggybacked). 12,500 ML Yes Return flows from Booberoi Creek to the Lachlan River downstream of Lake Cargelligo. Lake Brewster 1,500 ML to >5,000 ML Part of Lake Brewster water quality improvement. NA May be used to re-regulate environmental water. Willandra Creek 4,000 ML up to volume to be determined (at least 16,000 ML if not piggybacked). 12,000 ML Yes Morrisons Lake
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