Page 232 - VEWH Seasonal Watering Plan 2020-21
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 5.2 Victorian Murray system
Table 5.2.13 Potential environmental watering for the lower Murray wetlands under a range of planning scenarios
 Planning scenario
   Drought
   Dry
   Average
  Wet
  Expected river conditions
 • No natural flow in the Murray River year-round and wetlands rely on delivery of water for the environment; very low rainfall year-round and extremely hot and dry conditions in summer/autumn causes substantial wetland drying
 • Short periods of high flow in the Murray River are possible, however overbank flows to wetlands are unlikely; low rainfall and very warm summer/autumn
 • Sustained periods of high flow in the Murray River in late winter and early spring may wet some low-lying wetlands but most wetlands will rely on delivery of water for the environment
• Local rainfall may be high and provide run-off to some wetlands
 • Lengthy periods of high flow and floods with major spills from storages, resulting in widespread wetting of the floodplain and most wetlands
• Some reliance
on water for the environment to achieve target water levels
• Local rainfall may be high and will provide run-off to most wetlands
 Potential environmental watering – tier 1 (high priorities)1,2
  • Brickworks Billabong
• Lake Hawthorn
• Koorlong Lake
  • Brickworks Billabong
• Lake Hawthorn
• Koorlong Lake
• Margooya floodplain wetland
• Robertson Creek
• Neds Corner Woolshed Creek
• Bidgee lagoons
  • Brickworks Billabong
• Lake Hawthorn
• Koorlong Lake
• Margooya Floodplain Wetland
• Robertson Creek
• Neds Corner Woolshed Creek
• Bidgee lagoons
  • Lake Hawthorn
• Koorlong Lake
• Robertson Creek
• Burra Creek South proper
 Potential environmental watering – tier 2 (additional priorities)
  • n/a
  • n/a
  • Robertson Wetland (west)
• Fishers lagoons
  • Lake Powell
• Lake Carpul
 Possible volume of environmental water required to achieve objectives3
   • 1,970 ML (tier 1)
   • 3,555 ML (tier 1)
   • 3,835 ML (tier 1)
• 710 ML (tier 2)
   • 2,200 ML (tier 1)
• 6,200 ML (tier 2)
  1 Tier 1 potential environmental watering at the lower Murray wetlands is not classified as tier 1a or 1b because the water available for use is shared across various systems and it is not possible to reliably determine the supply specifically available for the lower Murray wetlands.
2 Wetlands are listed in priority order for tier 1 and tier 2 under all scenarios.
3 Environmental water requirements for tier 2 actions are additional to tier 1 requirements
             230 | Victorian Environmental Water Holder | Seasonal Watering Plan 2020–21











































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