Why the Mary is at risk from low flows . Steve Burgess  Mary River Catchment Coordinating Committee
   The Mary River has plenty of flow    We are only removing a comparatively small amount    Therefore we won’t have mu...
 
 
MRCCC
 
 
Wet end Dry end Water from here Comes out  here
Gympie Climate  (Bureau of Meteorology 1997)
Theebine Climate  (Bureau of Meteorology 1997)
Moy Pocket TC Damsite Fisherman’s Pocket Miva Home Park Barrage End of System
River Reach Stream flow in Stream flow out Inflows: tributaries, runoff, groundwater, Losses: extraction, seepage, evapora...
 
River Reach Stream flow in Stream flow out Inflows: tributaries, runoff, groundwater, Losses: extraction, seepage, evapora...
 
 
 
 
 
The Mary River already experiences major problems in times of low flows Proposed infrastructure plans are likely to make t...
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Why the Mary is at risk from low flows

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Presentation at "The River, the Bay and the Strait" public forum on 5 October, 2008 in Hervey Bay.

Published in: Technology, Business
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Why the Mary is at risk from low flows

  1. 1. Why the Mary is at risk from low flows . Steve Burgess Mary River Catchment Coordinating Committee
  2. 2.  The Mary River has plenty of flow  We are only removing a comparatively small amount  Therefore we won’t have much adverse impact  The proposed dam is a long way upstream  There are many tributaries and a large catchment downstream  Therefore there will be little impact on the lower river Myth/ unsubstantiated unscientific conclusion 1 Myth/ unsubstantiated unscientific conclusion 2
  3. 5. MRCCC
  4. 8. Wet end Dry end Water from here Comes out here
  5. 9. Gympie Climate (Bureau of Meteorology 1997)
  6. 10. Theebine Climate (Bureau of Meteorology 1997)
  7. 11. Moy Pocket TC Damsite Fisherman’s Pocket Miva Home Park Barrage End of System
  8. 12. River Reach Stream flow in Stream flow out Inflows: tributaries, runoff, groundwater, Losses: extraction, seepage, evaporation, Simple Hydrology
  9. 14. River Reach Stream flow in Stream flow out Inflows: tributaries, runoff, groundwater, Losses: extraction, seepage, evaporation, Mid Mary – Dry Seasons Eg. JASON months 1996, 1997, 2002, 2006
  10. 20. The Mary River already experiences major problems in times of low flows Proposed infrastructure plans are likely to make these problems worse Protecting the low-flow regime would require significant environmental flow releases This would reduce the economic viability of new infrastructure There are better urban water supply options

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