Page 59 - VEWH Seasonal Watering Plan 2020-21
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Table 2.2.4 Potential environmental watering for the lower Latrobe wetlands under a range of planning scenarios
2.2. Latrobe system
  Planning scenario
   Drought
   Dry
   Average
   Wet
   Expected river conditions
 • No natural inflows from the Latrobe River, and wetlands are likely to dry completely
 • Minor natural inflows from the Latrobe River in winter/ spring; expect moderate-to- substantial drying in summer
 • Moderate winter/ spring flows in the Latrobe River likely to fill or partially fill the wetlands; expect minor drying in summer
 • Major flows in the Latrobe River in winter/spring and possibly autumn/ winter likely to fill all wetlands with very little drying in summer
 Sale Common
               Potential environmental watering – tier 1 (high priorities)1
 • Partial fill (during July to December, with top-ups as required to maintain height above 0.3m AHD)
• Fill (during August to November)
• Top-up (anytime, following bird breeding)
 Dowd Morass
             Potential environmental watering – tier 1 (high priorities)1
 • Partial fill (during April to December)
• Trigger-based fill or partial fill (anytime)
• Top-up (anytime, following bird breeding)
 • Partial fill (during April to June and in December, with top-ups over summer to maintain surface coverage)
• Fill (during August to November)
• Trigger-based fill or partial fill (anytime)
• Top-up (anytime, following bird breeding)
 Heart Morass
             Potential environmental watering – tier 1 (high priorities)1
  • Partial fill (during August to December with top-ups as required to maintain water level above -0.3m AHD)
• Trigger-based fill or partial fill (anytime)
• Top-up (anytime, following bird breeding)
 • Partial fill (during August to December with top- ups as required to maintain water level above -0.3m AHD)
• Fill to 0.5 m AHD followed by partial flushing flow (during June to November)
• Trigger-based fill or partial fill (anytime)
• Top-up (anytime, following bird breeding)
   • Partial fill (during August to December with top-ups as required to maintain water level above -0.3m AHD)
• Trigger-based fill or partial fill (anytime)
• Top-up (anytime, following bird breeding)
   1 Potential environmental watering at the lower Latrobe wetlands is not classified as tier 1a, tier 1b or tier 2, because there is no limitation on the volume of water that can be supplied to the site from the Latrobe River. Water can be diverted to the lower Latrobe wetlands at any time of the year when flows are above -0.7 m AHD at the Latrobe River at the Swing Bridge gauging station.
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