Allocations Unchanged on 15 July 2010

Announcement Date: 15 Jul 2010
Next Announcement Due: 2 Aug 2010

Determination Data

Seasonal determinations for northern Victoria regulated river systems.

  High Reliability Water Share Change to High Reliability Water Share Comments
Murray 0% % -
Broken 0% % -
Goulburn 0% % -
Campaspe 0% % -
Loddon 0% % -
Bullarook Creek 0% % -

Further Information

Goulburn-Murray Water (G-MW), Resource Manager for northern Victorian water systems, today announced all system allocations remain unchanged at zero.

Mark Bailey, Acting Resource Manager, said the gap to announcing allocations was closing as rainfall across northern Victoria produced inflows. "The good news is that rain is producing inflows and the storages are rising. The catchments are wetter, which means the conditions for generating inflows with further rain are the best for several years," said Dr Bailey. "The initial impacts of the rainfall on 13-14 July 2010 have been included in the current assessment, although the full benefit will only be seen once all streamflows have peaked over the next few days."

Dr Bailey added, "The resources in the Goulburn and Murray systems are now sufficient to enable the delivery of allocation carried over from previous seasons to customers in the gravity irrigation districts from 16 August 2010 if there is demand. While there are not enough resources to allow full operation for the entire season, there is enough for early season deliveries during spring. There are enough resources to deliver critical needs for the whole year."

Carried over allocation can also be delivered in the Broken, Campaspe, Loddon and Bullarook systems if ordered, but further resource improvement is needed to close the shortfalls to allocations. "All customers with early season water requirements should confirm operating arrangements with their local water corporations," said Dr Bailey.

2010/11 Outlooks

The 2010/11 outlooks presented below are based on observed inflows in seasons following similar early winter inflows. Allocation outlooks will be updated on the 15th of each month until the end of 2010.

The following terminology is used in the tables:

            ‘Wet'               - Inflow volumes that have 1 chance in 10 of being exceeded

            ‘Average'       - Inflow volumes that have 5 chances in 10 of being exceeded

            ‘Dry'                - Inflow volumes that have 9 chances in 10 of being exceeded

 

Murray System

Inflow Conditions

16 Aug 2010

15 Oct 2010

15 Dec 2010

15 Feb 2011

Wet

31%

83%

100%

100%

Average

14%

51%

87%

100%

Dry

2%

40%

56%

59%

 

 

Goulburn System (Note: Allocations consider the reserve policy and include the benefit of Pumping from Waranga Basin while allocations are lower than 30%)

Inflow Conditions

16 Aug 2010

15 Oct 2010

15 Dec 2010

15 Feb 2011

Wet

39%

90%

100%

100%

Average

23%

51%

79%

87%

Dry

6%

34%

41%

43%

 

 

Broken System

Inflow Conditions

16 Aug 2010

15 Oct 2010

15 Dec 2010

15 Feb 2011

Wet

11%

100%

100%

100%

Average

0%

77%

100%

100%

Dry

0%

8%

44%

54%

 

 

Campaspe System

Inflow Conditions

16 Aug 2010

15 Oct 2010

15 Dec 2010

15 Feb 2011

Wet

38%

100%

100%

100%

Average

0%

21%

32%

40%

Dry

0%

0%

0%

0%

 

 

Loddon System

Inflow Conditions

16 Aug 2010

15 Oct 2010

15 Dec 2010

15 Feb 2011

Wet

46%

100%

100%

100%

Average

0%

37%

52%

71%

Dry

0%

0%

0%

0%