The volume recognised in the water accounting statements (401 ML) represents the total volume of water released down the Yarra River to meet minimum environmental flows.
The water was not part of the Yarra Environmental Entitlement 2006. It was made available as part of the easing of Melbourne’s water restrictions to Stage 3 (from Stage 3A). A temporary qualification of rights in the Melbourne water supply system was in place for 2009–10. This qualification meant that no water was allocated to the environmental share of storage in the Yarra catchment under the Yarra environmental entitlement. However, on 02 April 2010 the Victorian Government announced the return of 7,000 ML per year to the Yarra River. This annual volume was allocated to the environment on a pro-rata basis for the remaining days in the financial year, which equated to an allocation of 1,726 ML for the remainder of 2009–10.
Of this 1,726 ML, 401 ML was actually released (water that would have been pumped from the Yarra River at Yering Gorge had the cease-to-pump arrangements not been in place).
Melbourne Water: Waterworks database; supervisory control and data acquisition (SCADA) database.
Melbourne Water.
The volume of water diverted was measured by meters.
The accuracy of metering of diverted flows from the Yarra River at Yering Gorge is +/–1%.
Nil.
National Water Account 2010
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