Management of Menindee Lakes 2011-2012 – Issue 8. 20 April 2012

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The flood peak in the Darling River is currently entering the Menindee Lakes. Inflows of 64,000 megalitres per day (ML/d) have been recently calculated and inflows of over 50,000 ML/d day are expected to continue over the weekend before beginning to fall. Airspace in the lakes is being used to minimise the flood impact around the  Menindee township and downstream. Upstream at Wilcannia the river is falling slowly and no further rises are anticipated for this event.

This paper, and updates to follow, describes current flow conditions and operations, as well as information on what
can be expected through April and May as the flood waters pass through the Darling River system.
Residents and authorities are reminded to check with the NSW Office of Water in Buronga on the required
approvals before undertaking any earthworks to protect infrastructure or crops.
 

Management of Menindee Lakes 2011-2012 Issue 7 – 5 April 2012

Content

Introduction
The flood peak in the Darling River is now approaching Wilcannia. Upstream at Tilpa the river level is falling and no
further rises are anticipated in this event. Downstream at Menindee, high inflows to the lakes system are expected
throughout April and into May, however, maximum outflows will be limited to current levels. The NSW Office of
Water and State Water Corporation are continuing to manage operations at Menindee Lakes in anticipation of the
forecast inflows.
This information paper updates current flow conditions and operations, as well as provides information on what can
be expected through April and May as the flood waters pass through the Darling River system.
In short, residents along the Darling River, from downstream of Tilpa to Burtundy, can expect an extended period of
high flow and widespread rural inundation, similar to events of 1971, 1990 and 1998.
Residents and authorities are reminded to check with the NSW Office of Water in Buronga, approvals that
might be necessary before undertaking any earthworks to protect infrastructure or crops.

River Operations
Darling River Flows and Menindee Storage Volume
The flow in the Darling River main channel at Wilcannia is currently at 39,000 megalitres per day and the flow in the
Talyawalka Creek is over 50,000 megalitres per day. This combined flow is expected to approach a maximum of
about 100,000 megalitres per day over the next few days causing major flooding. This is slightly lower than the
early forecasts but comfortably within the range of planning expectations.
Downstream at Menindee, releases from the lakes system have been made in preparation of the anticipated
significant inflows. The lakes are currently 82 percent full and can hold a further 600,000 megalitres under
surcharge conditions. A large proportion of this available airspace will be used to manage forecast inflows of
between 60,000 and 70,000 megalitres per day during April.
The main weir gate has been re-positioned in the water to limit outflows (measured at Weir 32) to a maximum of
35,000 megalitres per day, making town flooding and conditions immediately downstream of Menindee no more
severe than what is currently being experienced. This will also cause lake levels to rise throughout April and May.
The NSW Office of Water will aim to begin reducing outflows from the lakes as soon as possible to allow water
levels to fall and alleviate flooding in the Menindee town area and downstream. However this is not expected until
May. Minimising outflows will also ensure that the lakes are full at the end of this flood event to provide maximum
resource availability into the future.
Lower Darling River Flows
Downstream flooding could be similar to that experienced during the 1998 flood which had a comparable peak flow
at Bourke of 230,000 megalitres per day (13.78m gauge height). Menindee releases to the Lower Darling in that
event reached 46,500 ML per day through Weir 32 (7.45m gauge height or 10.0m at the Menindee Town gauge).
The targeted peak flow for this 2012 event is 35,000 megalitres per day through Weir 32 and with flows from the
Talyawalka, combined flows in the Lower Darling immediately downstream of the Menindee Lakes will be as high
as 50,000 megalitres per day. Historically, flows of this size, generally flow evenly to the Lower Darling and the
Great Anabranch.
As far as possible the NSW Office of Water will reduce lake outflows at the time of peak Talyawalka inflows below
Weir 32 to minimise the influence of the Talyawalka on the Lower Darling. If that can be achieved then a flow pulse
of 22,000 - 24,000 megalitres per day in the Lower Darling will not be experienced but rather steady flow conditions
of around 18,000 to 20,000 megalitres per day produced by the Menindee outflows for the past few weeks, will be
seen.
Water levels in the Lower Darling River at Pooncarie and Burtundy are both rising very slowly. The NSW Office of
Water will aim to keep peak flow in the Lower Darling below that of the 1998 event, and no more than about 24,000
ML per day (7.7m gauge height) at Pooncarie and 22,000 ML per day (7.7m gauge height) at Burtundy.
Great Darling Anabranch Flows
Flow in the Lower Darling at the Great Anabranch effluent has been relatively steady throughout March at around
18,000 megalitres per day, commensurate with the steady flows through Weir 32. In the Anabranch at Wycot the
flow gradually rose through March to reach 13,000 megalitres per day and some 4.2 metres. At the peak of flow,
expected in late April/May, levels are not expected to exceed 5.2 metres. A few thousand megalitres per day is now
flowing in the lower reaches of the Anabranch and joining the Murray River. It is anticipated that this full
connectivity through the Anabranch system will last at least through May, with significant flow volumes expected to
reach the Murray River.
Combined Murray and Murrumbidgee River Flows
The flood peak in the Murrumbidgee River is current downstream of Hay where the river is now falling from 12.9
metres. Peak flow of around 40,000 megalitres per day is expected at Balranald next week. This water will then
enter the Murray River and produce flows at Euston Weir of up to 60,000 megalitres per day from mid April.
It is expected that the Murray peak flow will pass Wentworth in mid to late April with the Darling River contributing
steadily flows of around 18,000 to 22,000 megalitres per day during this period. Flows from the Great Darling
Anabranch will be much longer in arriving at the Murray and have minimal impact on peak flows.
It is expected that high flows to South Australia will persist from mid-late April to early

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Daily Rainfall at Charleville Office June 2011 to January 2012

Daily Rainfall at Charleville Office June 2011 to January 2012
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Rainfall and Water Flows

Two Positions becoming vacant - Applications will open on 24/5/2012 - see this website for details and application packages after Thursday 24/5/2012

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  • Corporate Services Manager
  • Senior Projects Officer

 
The position descriptions and application packages will appear on the website on Thursday.

Corporate Services Manager

 

 

 

The primary functions of the Corporate Services Manager position are as follows:

  • Manage Corporate Services activities
  • Manage Human Resource duties
  • Manage financial aspects of South West NRM contracts
  • Provide high level support to other South West NRM staff and programs.
  • Provide strategic support to Board and Senior Management team

 

Applicants must possess the following:

  • Appropriate tertiary qualifications and minimum five years’ experience
  • High level knowledge of Microsoft Office specifically word, excel and outlook.
  • High level experience of MYOB or similar and experience in payment of wages and creditors.

 

This is a full time position. Occasional out of hours work and travel will be required.

  If interested in the position, obtain an application package by calling (07) 4656 8500 or on-line at www.southwestnrm.org.au

 

For position information phone Neil Judd on

(07) 4656 8500 or mobile 0427 220 139. 

To apply for this position please submit a resume addressing the selection criteria to:    

“Vacancy – Corporate Services Manager”

South West NRM Ltd

            PO Box 630

            CHARLEVILLE  QLD  4470

 

Or by email to ceo@swnrm.org.au

 

Closing Date: 5:00pm, 5th June 2012

 


Senior Project Officer

 

 

 

 

The primary functions of the Senior Project Officer are as follows:

  • Reporting to CEO manage regionally important projects
  • Provide strategic project support and guidance to staff
  • Reporting to CEO manage SWNRM publishing and promotional functions
  • Carry out other duties as required

Applicants must possess the following:

  • Appropriate tertiary qualifications
  • Minimum five years relevant experience
  • High level knowledge of Microsoft Office suite and publishing software.
  • Strong networking and communication skills/aptitude

 

This is a full time position. Occasional out of hours work and travel will be required.

  If interested in the position, obtain an application package by calling (07) 4656 8500 or on-line at www.southwestnrm.org.au

 

For position information phone Neil Judd on

(07) 4656 8500 or mobile 0427 220 139. 

To apply for this position please submit a resume addressing the selection criteria to:    

“Vacancy –Senior Project Officer”

South West NRM Ltd

            PO Box 630

            CHARLEVILLE  QLD  4470

 

Or by email to ceo@swnrm.org.au

 

Closing Date: 5:00pm, 5th June 2012

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New Weeds of National Significance - May 2012

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Twelve more weeds of national significance have been declared. Unquestionably this is a step in the right direction. However unless appropriate actions are implemented little benefit will flow to our natural environment and the wildlife it supports.

The additional weeds are:

    * African boxthorn,
    * asparagus weeds,
    * bellyache bush,
    * brooms,
    * cat's claw creeper,
    * fireweed,
    * gamba grass,
    * Madeira vine,
    * opuntioid cacti,
    * sagittaria,
    * silver nightshade and
    * water hyacinth.

It is pleasing to see gamba grass on the list. Wildlife Queensland played a leading role in the successful campaign to have that species listed in Queensland several years ago.

In spite of this grass being listed in Queensland as Category 2, this highly invasive weed has major infestations in Cape York and parts of coastal north Queensland and continues to spread. It is estimated that total extent is in excess of 60000ha. It is freely acknowledged that infestations of this pasture grass increase fire intensity up to eight-fold and cause a decline in the diversity and abundance of our wildlife.

Serious impacts occur to rainforest areas and vegetation along creeks and river systems by the cat’s claw creeper and Madeira vine. Introduced as garden plants these plants have spread devastating the natural habitat and leading to soil and bank erosion resulting in water quality issues.

The sources of these invasive plants are varied. Wildlife Queensland is a member of the Stop Invasive Species Alliance (SISA). One of the prime aims is to support the prime advocacy target - the establishment of an expert national body to collaborate on solutions to invasive species threats. With looming major reforms to our national biosecurity system, there are excellent opportunities to impact on the way the nation addresses this major threat to our biodiversity. It is well established that invasive plants and feral animals are second only to habitat loss as a threat to our biodiversity.

However it is not only listed species that are a concern to Wildlife Queensland. There are really aggressive weeds not making the WoNS list or Queensland’s Categories 1-3 weed lists that are having major environmental impacts. Such plants include Grader grass (Themeda quadrivalvis) and Thatch grass (Hyparrhenia rufa).

At least Governments at all levels recognise this threat from invasive weeds and some positive steps are being taken by listing the very aggressive species. Listing is only step one and nothing will be achieved unless management guidelines are drafted and implemented.

Queensland will lead the national strategy development for gamba grass, cat’s claw creeper and Madeira vine. It is our understanding that the draft strategies for these species will be out in mid to late May for public comment. For more information visit the website.

For more information on Wildlife Queensland's activities, call us on +61 7 3221 0194 or send us an email.

Fire - Preparation and Management Workshops

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Join South West NRM with presenters Paul Storrs and Shane Brumby of the Rural Fire Service along with Bruce Alchin.
 

South West NRM Workshops to be held at:

Morven - June 12th Town Hall

Augathella - June 13th Town Hall

Charleville June 14th RSL, Watson Street

Quilpie - June 15th Bulloo Park (Showgrounds)

Thargomindah - June 16th Town Hall

Eulo - June 17th Town Hall

Cunnamulla - June 18th Shire Hall, Supper Room

Bollon - June 19th Tennis Club

 

-Preparation for Bushfires
-Fire Permits
-History of Fire
-Healthy Waters Management Plan
-Fire in the Rangeland Ecosystem
-Fire and Property Management
-Fuel Dynamics
-Meteorological Conditions

 

RSVP  - 07 4656 8500

admin@swnrm.org.au

Or contact your local SWNRM office for more information.

 

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Community Information Sheet: Issue 9 Management of Menindee Lakes 2011-2012

Abstract or description: 

After almost three months travel time, the flood peak in the Darling River has arrived at the Menindee Lakes.Inflows of nearly 60,000 megalitres per day were experienced during the third week of April, but are now falling and have now reduced below 40,000 megalitres per day. Airspace in the lakes minimised the flood impact around Menindee township and downstream. Upstream at Wilcannia, the river is falling steadily and no further rises are anticipated from this event.

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Flow Reports
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Waterways management documents
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"Business diversity meets Biodiversity" SWNRM Project application successful

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BIODIVERSITY FUND ROUND ONE  South West NRM Project

 

This project aspires to create an innovative & holistic natural resource management consortium initially across 7 properties (339,882 ha's) conserving a range of Threatened Ecological Communities (TEC's), whilst cognisant of developing properties under diverse agricultural, cultural heritage & conservation enterprise outcomes. TEC areas mapped under the Federal Government's TEC program, form a catalyst for on-ground projects, creating nodes of biodiversity, linking TEC's through corridors where vegetative communities allow. The project aspires to protect & strategically manage 17,500 ha's of TEC over 6 years costing of $109.00 / ha (inclusive of GST), promoting project outcomes through case study development & promotion.

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Biodiversity Fund helps Australia's land managers store carbon and protect biodiversity

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317 projects around the country will benefit from the first round of the Gillard Government’s Biodiversity Fund.

 

The Biodiversity Fund is a key component of the Gillard Government’s strategy to enhance biodiverse carbon stores and secure a clean energy future for Australia.

Announcing the first round of Biodiversity Fund grants, Minister for the Environment, Tony Burke and Minister for Climate Change, Greg Combet said the 317 projects would help to revegetate, rehabilitate and restore around 18 million hectares of the Australian landscape over the next six years.

Collectively these projects have real potential to advance the reversal of biodiversity decline and establish significant areas of carbon storage. They are an important first step in connecting our landscapes and making them more resilient to climate change.

Minister Burke said the Biodiversity Fund would provide much needed long-term commitment to biodiversity conservation and restoration with almost half the projects announced today running over a six year period.

“Providing long-term support to land managers leads to enduring results for our environment and for the community,” Mr Burke said.

“Across Australia, farmers and other land managers already do a great job through Landcare work and the Biodiversity Fund will build on this work.

“A number of projects announced in this first round also align with the intent of the draft National Wildlife Corridors Plan helping to improve connectivity in the landscape through the establishment of landscape scale wildlife corridors.

“This program has received overwhelming support from land managers right across the country with the Biodiversity Fund encouraging an additional $207 million in in-kind or financial contributions.”

In Queensland the Biodiversity Fund will support a project to restore the Condamine catchment landscape in collaboration with the local community.

In South Australia, the Fund will provide $2.6 million to rehabilitate South Australia’s remnant coastal corridor, the Samphire Coast, over the next six years.

The Fund will also support a project to protect Victoria’s iconic River Red Gums and restore native vegetation along the Hopkins River.

Minister Combet said just over a third of the Biodiversity Fund projects indicated that they may go on to participate in the Carbon Farming Initiative.

“These policies will help to protect biodiversity on the land, boost carbon storage opportunities and improve the resilience of unique species against the impacts of climate change,” Mr Combet said.

“The Biodiversity Fund is an important part of the Government’s Clean Energy Future plan and is supported by revenue from the carbon price. It focuses directly on taking action on-ground to maintain the productive capacity of our landscape and natural ecosystem.”

For more information about Biodiversity Fund, and for a list of successful projects, go to http://www.environment.gov.au/cleanenergyfuture/biodiversity-fund/index.html

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Making the most of good seasons - youtube video

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We thought you might have been interested in this YouTube video on managing Mitchell grass produced by us (Dept Agriculture, Fisheries and Forestry) and Desert Channel.  It is based on a field day held in  Barcaldine late last year.

The main theme is making the most of good seasons by: increasing stock numbers in some paddocks; spelling other paddocks to improve condition; being ready for the inevitable drought de-stocking.

 

Please feel free to circulate this link around to your contacts, especially those with Mitchell grass country. We are trying to make our information available to as many graziers as possible and overcome the issue of not everyone being able to get along to every field day or workshop that is held. Having the information summarised on YouTube should make it more accessible to a wider audience.

 

http://www.youtube.com/user/DesertChannels

 

For more information contact

 

Dr David Phelps
P.O. Box 519, Longreach Qld 4730
Telephone 07 46501244

Mob 0427270259
Email david.phelps@deedi.qld.gov.au