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Table 5.2.15 Potential environmental watering for Lindsay, Mulcra and Wallpolla islands under a range of planning scenarios (continued)
5.2 Victorian Murray system
 Planning scenario
   Drought
   Dry
   Average
  Wet1
  Mulcra Island
    Potterwalkagee Creek potential environmental watering – tier 1 (high priorities)2
 • N/A
     • One spring fresh (Potterwalkagee Creek)
   • N/A
   Potterwalkagee Creek potential environmental watering – tier 2 (additional priorities)
• N/A
  • Mulcra Horseshoe (complete fill)
• Mulcra Island floodplain inundation
• Snake Lagoon (complete fill)
 • N/A
 Possible volume
of water for the environment required to achieve objectives4,5
   • 0 ML
 • Up to 3,000 ML (tier 1)
• Up to 3,000 ML (tier 2)
   • 0 ML
    Wallpolla Island
   Wallpolla Island wetlands potential environmental watering – tier 1 (high priorities)2
  • Wallpolla Horseshoe Lagoon (partial fill)
  • Wallpolla Horseshoe Lagoon (partial fill)
• Finnigans Creek
• Sandy Creek
• Wallpolla Creek East
  • Wallpolla Horseshoe Lagoon (partial fill)
• Finnigans Creek
• Sandy Creek
• Wallpolla Creek East
  • Wallpolla Creek East
 Potential environmental watering – tier 1 (high priorities)
   • 400 ML
   • 4,900 ML
   • 4,900 ML
   • 1,000 ML
   1 Natural wetting of wetlands and the floodplain under a wet scenario achieves the environmental watering requirements of most sites, so few potential watering actions are planned under a wet scenario.
2 Tier 1 potential environmental watering at Lindsay, Mulcra and Wallpolla islands are 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 Lindsay, Mulcra and Wallpolla islands.
3 These estimates include environmental use for Mullaroo Creek, Lindsay River and the lock 7 weir pool. Environmental water used at these sites may be accounted for in Victoria and New South Wales.
4 These estimates include environmental use for Potterwalkagee Creek, Mulcra Island and the lock 8 weir pool. Environmental water used at these sites may be accounted for in Victoria and New South Wales.
5 Environmental water requirements for tier 2 actions are additional to tier 1 requirements.
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