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History - Border Rivers

Environmental watering in the catchment in previous years

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2013-14

Environmental watering in the catchment in 2013-14
Watering action Status of Commonwealth action
Border Rivers including the Severn River (NSW), Macintyre Brook (Qld) and Dumaresq River (Qld) Completed
Severn River Qld unregulated Yet to commence
Lower Macintyre Qld unregulated Yet to commence

Environmental watering in the Severn River (NSW), Macintyre Brook (QLD) and Dumaresq River (QLD), Border Rivers catchment 2013-14

Status

31 March 2014: This action is completed.

About the watering

The overarching purpose of the water use is to contribute to improving the ecological health and resilience of the Border Rivers system. Commonwealth environmental water is available to contribute to in-stream fresh flows between August 2013 and June 2014.

The expected environmental outcomes of this watering action include contributing to:

  • the tumbling of in-channel substrate to scour algae and reset benthic periphyton (biofilm) processes to support primary production
  • providing migration and dispersal cues to native fish to support biotic dispersal, native fish reproduction and condition
  • wetting and interconnecting riparian areas and in channel benches to provide hydrological connectivity and support nutrient and carbon cycling.

Border Rivers catchment. Photo: Clare d'Arcy © CEWO

Up to 8000 ML of Commonwealth environmental water may be used as part of this watering action and consists of:

  • up to 4,000 ML of targeting the Severn River (NSW)
  • approximately 200 ML targeting Macintyre Brook (Qld)
  • approximately 3,800 ML targeting the Dumaresq River (Qld).

The total volume of Commonwealth environmental water used will depend on seasonal conditions and rainfall.

This watering action has been made possible by the collaboration of a wide range of stakeholders including the NSW Office of Water, NSW DPI Fisheries, NSW Office of Environment and Heritage, Qld Department of Natural Resource and Mines, State Water Corporation, SunWater, Queensland Murray-Darling Committee and local water users and landholders.

Environmental watering in the Severn and lower Macintyre River systems 2013-14

Status

31 October 2013: These actions are yet to commence.

About the watering

Commonwealth environmental water will be used to contribute to improving the ecological health and resilience of the Severn and lower Macintyre River systems. Commonwealth environmental watering is likely to occur between October 2013 and February 2014 and will remain in-stream to contribute to protecting and restoring water-dependent ecosystems by supporting:

  • increased flow variability
  • episodically high ecological productivity and its ecological dispersal
  • ecological processes dependent on hydrologic connectivity (i) longitudinally along watercourses; and (ii) laterally between watercourses and their floodplains (and associated wetlands).

Approximately 1260 ML of Commonwealth environmental water may be used as part of this watering action and consists of:

  • approximately 1,020 ML (unregulated) targeting the Severn River (Qld)
  • approximately 240 ML (unregulated) targeting the lower Macintyre River (Qld)

The total volume of Commonwealth environmental water used will depend on seasonal conditions and rainfall.

This watering action has been made possible by the collaboration of a wide range of stakeholders including the NSW Office of Water, NSW DPI Fisheries, NSW Office of Environment and Heritage, Qld Department of Natural Resource and Mines, State Water Corporation, SunWater, Queensland Murray-Darling Committee and local water users and landholders.

Photo of a stream

Border Rivers catchment Photo: Clare d'Arcy © CEWO

2012-13

Environmental watering in the catchment in 2012-13
Watering action Amount of water delivered (ML)
Border Rivers 895
Severn River unregulated 976
Lower Macintyre unregulated 687
Total in 2012-13 2 558

Environmental watering in the Border Rivers catchment 2012-13

Status

30 June 2013: This action has been completed.

About the watering

Border Rivers catchment. Photo: Clare d'Arcy © CEWO

The environmental objectives of this watering action included contributing to:

  • stimulating production through all levels of the aquatic food chain including aquatic insects, fish, platypus and bird life
  • providing migration and dispersal cues to native fish
  • wetting and interconnecting riparian areas.

This watering action was made possible by the collaboration of a wide range of stakeholders including the NSW Office of Water, NSW DPI Fisheries, NSW Office of Environment and Heritage, Qld Department of Natural Resource and Mines, State Water Corporation, Queensland Murray-Darling Committee and local water users and landholders.

Environmental watering in the Severn and lower Macintyre River systems 2012-13

Status

30 June 2013: These actions have been completed.

About the watering

In the Severn River system (unregulated) the environmental objectives of the watering action included contributing to:

  • providing a more naturally variable flow regime in the Severn River within Sundown National Park
  • filling and reconnecting refugial waterholes
  • providing migration and spawning cues for large bodied native fish, encouraging the germination and maintenance of riverbank vegetation.

In the lower Macintyre River system (unregulated) the environmental objectives of the watering action included contributing to:

  • supporting a more naturally variable flow regime in these systems
  • improving fish habitat, through both recruitment and movement
  • carbon and nutrient cycling through the end of system.

These watering actions were made possible by the collaboration of a wide range of stakeholders including the NSW Office of Water, NSW DPI Fisheries, NSW Office of Environment and Heritage, Qld Department of Natural Resource and Mines, State Water Corporation, Queensland Murray-Darling Committee and local water users and landholders.

2011-12

Environmental watering in the catchment in 2011-12
Watering action Amount of water delivered (ML)
Severn River 1 000
Total in 2011-12 1 000

No Commonwealth environmental watering has occurred in the Border Rivers catchment prior to 2011-12.