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Casino RSM 10 December 2019
Richmond River (Toonumbar Dam) ROSCCo
(River Operations Stakeholder Consultation Committee Meeting)
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Richmond River (Toonumbar Dam) ROSCCo (River Operations - - PowerPoint PPT Presentation
Richmond River (Toonumbar Dam) ROSCCo (River Operations - - PowerPoint PPT Presentation
Richmond River (Toonumbar Dam) ROSCCo (River Operations Stakeholder Consultation Committee Meeting) Casino RSM 10 December 2019 Average 12 Month rainfall 2 WaterNSW Rainfall last 12 Months 3 WaterNSW What are we missing out on? 4
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Rainfall last 12 Months
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What are we missing out on?
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Richmond River at Casino Total annual flows
200000 400000 600000 800000 1000000 1200000 Annual Flow Richmond at Casino
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Toonumbar Richmond Total Annual Flows
50 100 150 200 250 300 350 2014 2015 2016 2017 2018 2019 Toonumbar Dam Richmond River at Kyogle
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Inflows Actual v Statistical since December 2018 (last spill)
20 40 60 80 100 120 DEC JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Storage Capcity (GL)
Actual Wet 20% COE Median 50% COE Dry 80%COE Minimum 99% COE
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Toonumbar Dam Storage Capacity
0% 20% 40% 60% 80% 100% 120% 1-Jul 1-Aug 1-Sep 1-Oct 1-Nov 1-Dec 1-Jan 1-Feb 1-Mar 1-Apr 1-May 1-Jun
Storgae Capacity %
2001/02 2002/03 2003/04 2015/16 2016/17 2017/18 2018/19 2019/20
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Toonumbar Resource Assessment 1 July 2019
Storage Loss 1.00 Essential supplies 0.2 Delivery Loss, 0.70 General Security, 9.53
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Toonumbar Resource Assessment 1 July 2019
Toonumbar storage volume, 7.24GL Minimum Inflows, 16.50GL
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Toonumbar Dam Volume 1 December 2019
Water remaining in Toonumbar Dam, 3.86GL Airspace, 7.14GL
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Toonumbar Dam Forecast Storage Volume – Chance of Exceedance
2 4 6 8 10 12
Storgae volume Gl
WET 20% COE Median 50% COE DRY 80% COE Minimum Actual Zero Inflows
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Temperature Forecast
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Soil Moisture Content
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Richmond River – Drought Status
Water source/ management zone Reference point Class and accesibility Flow cretria (ML/day) Current flow (ML/day) as of (4 Dec) Bangalow Area Water Source Wilson River Gauge (203014) Very Low Flow<=24 11.1 A 385>Flow>24 B Flow>385 Gradys Creek Water Source Richmond River Gauge at Wiangaree (203005) Very Low Flow<=15 9.4 A 308>Flow>15 B Flow>308 Upper Kyogle Area Water Management zone Richmond River Gauge at Kyogle (203900) Very Low Flow<=15 6.2 A 251>Flow>15 B Flow>251 Lower Kyogle Area Water Management zone Richmond River Gauge at Casino (203004) Very Low Flow<=12 2.0 A 584>Flow>12 B Flow>584 Leycester Creek Water Source Leycester Creek Gauge at Rock Valley (203010) Very Low Flow<=1 A 38>Flow>1 B 80>Flow>38 c Flow>80 Myall Creek Water Source Myrtle Creek Gauge at Rappville (203030) Very Low Flow=0 A Flow>0 Myrtle Creek Water Source Myrtle Creek Gauge at Rappville (203030) Very Low Flow=0 A 4>Flow>0 B 28>Flow>4 c Flow>28 Shannon Brook Creek Water Source Shannon Brook Creek Gauge at Yorklea (203041) Very Low Flow=0 A 16>Flow>0 B 52>Flow>16 c Flow>52 Terania Creek Water Source Coopers Creek Gauge at Ewing Bridge(203024) Very Low Flow<=8.5 2.5 A 229>Flow>8.5 B Flow>229 Upper Richmond River Water Source Richmond River staff gauge at the Lavelles Road crossing (203056) and Richmond River gauge (203005) at Wiangaree Very Low Flow<=1 9.4 A Flow>1 and <=308 B Flow>1 and >308 Cooper Creek Coopers Creek at Ewing Bridge Gauge (203024) Very Low Flow<=9 2.5 A Flow>9
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Discussion
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