Commonwealth Environmental Water Office
The following portfolio management statement is intended to provide guidance on the Commonwealth Environmental Water Office's potential approach to portfolio management in the Mid-Murray Region in 2012-13. The Mid-Murray Region is defined in this statement as the Murray River between Hume Dam and the junction of the Murray and Darling rivers at Wentworth.
This statement will be updated during the year as the approach to portfolio management is adjusted in response to actual seasonal conditions. The next routine update is anticipated in November 2012, however further updates may be released in response to a significant change in circumstances.
Murray River in the Mid-Murray Region
Photo by Rebecca Gee © CEWO
Date issued: 07 September 2012
Recent Water Availability
Total storage levels within the Southern Connected Basin1 are currently around 92 per cent and water availability is high.
|Entitlement type||Entitlement Held (GL)||Entitlement Held – Long-term Average Annual Yield (GL)||Carryover from 2011-12 (GL)1||Water Available (GL)||Forecast Maximum Water Available in 2012-13(GL)2|
|NSW Murray (High Security)||4.6||4.4||0||2.7||2.7|
|Victorian Murray (High Reliability)||232.3||220.6||153.8||224.5||224.5|
|Victorian Murray (Low Reliability)||11.4||2.7||10.7||10.7||10.7|
|Total – Mid-Murray Region3||491.1||424.3||197.8||506.6||506.6|
|Total – Southern Connected Basin 4||1,000.7||827.7||249.8||944.3||1,030|
- 1 Southern Connected Basin includes the following hydrologically connected catchments: Goulburn, Campaspe, Loddon, SA Murray, VIC Murray, NSW Murray, Lower Darling and Murrumbidgee.
- 2 Total forecast water available in the Victorian Murray and the Southern Connected Basin does not include allocation in spillable water accounts in Victoria.
- 3 The boundary between the Mid-Murray and Lower Murray Regions used by the Commonwealth Environmental Water Office for planning do not precisely align with entitlement types.
- 4 These figures do not include supplementary water in the Murrumbidgee river which is subject to announcement.
Commonwealth environmental water available in 2012-13
As at 1 August 2012, the Commonwealth Environmental Water Office had 495.9 GL of water available in the Mid- Murray Region, including 197.8 GL carried over from 2011- 12. Including possible future allocation announcements, the total volume that may be available in 2012-13 is estimated at around 507 GL.
In addition to water that has been allocated against entitlements held within the Mid-Murray Region, the Commonwealth forecasts that around 473 to 523 GL of additional water may be available from entitlements held elsewhere in the Southern Connected Basin. Subject to trading rules and account limits, this additional water may be available in the Mid-Murray Region in 2012-13.
These allocations are significantly higher than the longterm average, which means that the Commonwealth Environmental Water Office has, like all other entitlement holders, substantial volumes of water available.
Allocation water can be used, traded or carried over to subsequent years depending on the nature of the source entitlement and the legal framework which applies to the management of Commonwealth environmental water.
Water use options in 2012-13
The Commonwealth Environmental Water Office has developed water use options for all water available to it in the Southern Connected Basin, subject to seasonal and operational considerations. Available water may be transferred between catchments within the Southern Connected Basin to meet environmental watering needs.
Further information on environmental water use options is available at Annual Water Use Options 2012-13: Mid-Murray Region. Information on water use will be updated on the website as decisions are made.
Trade in 2012-13
The Water Act 2007 provides for the trade of Commonwealth environmental water (allocations and entitlements) and specifies the conditions under which sales may occur. The Commonwealth Environmental Water Office has no current plans for allocation sales in 2012-13 as available allocations are expected to be required to meet environmental needs. The Commonwealth Environmental Water Office has no current plans for allocation purchases.
Trading opportunities are assessed on an ongoing basis, and allocation trade may be considered if catchment and market conditions change. The Commonwealth Environmental Water Office will provide further information to the water market prior to undertaking any trading action.
Trade of permanent entitlement is not being considered for 2012-13. Please note that the Commonwealth Environmental Water Office is a separate entity from the Commonwealth Government's Restoring the Balance in the Murray-Darling Basin program and as such the preceding statement does not relate to water entitlement purchasing that may be conducted through that program.
Carryover into 2013-14
As noted above, the volume used for environmental watering in 2012-13 will be subject to seasonal and operational considerations. The Commonwealth Environmental Water Office will monitor water use and will develop a carryover strategy for any allocations that are not likely to be used. Unused allocations will be transferred, subject to trading rules, to accounts that provide the most favourable carryover arrangements. More specific guidance on carryover will be provided in subsequent portfolio management statements as the year develops and forecasts can be refined.
Further information about carryover of Commonwealth environmental water in Northern Victoria can be found on Carryover of Commonwealth Water - Northern Victoria - Factsheet
Further information about carryover of Commonwealth environmental water in NSW Murray and Murrumbidgee can be found on Carryover of Commonwealth Water - NSW Murray and Murrumbidgee
Proportion of Mid-Murray irrigation entitlements held by Commonwealth (by total long-term average annual yield)
Carryover of Commonwealth environmental water in the Mid-Murray as a proportion of major storage capacity