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 WaterNSW 5 WaterNSW Richmond River at Casino Total annual flows
1200000
1000000
800000
600000
400000
200000
0
Annual Flow Richmond at Casino
6 WaterNSW Toonumbar Richmond Total Annual Flows
350
300
250
200
150
100
50
0 2014 2015 2016 2017 2018 2019
Toonumbar Dam Richmond River at Kyogle
7 WaterNSW Inflows Actual v Statistical since December 2018 (last spill)
120
100
80
60
40 Storage Capcity (GL)
20
0 DEC JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Actual Wet 20% COE Median 50% COE Dry 80%COE Minimum 99% COE
8 WaterNSW Toonumbar Dam Storage Capacity
120%
100%
80%
60%
Storgae % Capacity Storgae 40%
20%
0% 1-Jul 1-Aug 1-Sep 1-Oct 1-Nov 1-Dec 1-Jan 1-Feb 1-Mar 1-Apr 1-May 1-Jun
2001/02 2002/03 2003/04 2015/16 2016/17 2017/18 2018/19 2019/20
9 WaterNSW Toonumbar Resource Assessment 1 July 2019
Storage Essential supplies 0.2 Loss 1.00
Delivery Loss, 0.70
General Security, 9.53
10 WaterNSW Toonumbar Resource Assessment 1 July 2019 Toonumbar storage volume, 7.24GL
Minimum Inflows, 16.50GL
11 WaterNSW Toonumbar Dam Volume 1 December 2019
Water remaining in Toonumbar Dam, 3.86GL
Airspace, 7.14GL
12 WaterNSW Toonumbar Dam Forecast Storage Volume – Chance of Exceedance
12
10
8
6
Storgae volume Gl 4
2
0
WET 20% COE Median 50% COE DRY 80% COE Minimum Actual Zero Inflows
13 WaterNSW Temperature Forecast
14 WaterNSW Soil Moisture Content
15 WaterNSW Richmond River – Drought Current flow Water source/ management zone Reference point Class and accesibility Flow cretria (ML/day) (ML/day) as of Status (4 Dec) Very Low Flow<=24 Wilson River Gauge Bangalow Area Water Source A 385>Flow>24 11.1 (203014) B Flow>385 Very Low Flow<=15 Richmond River A 308>Flow>15 Gradys Creek Water Source Gauge at Wiangaree 9.4 (203005) B Flow>308 Richmond River Very Low Flow<=15 Upper Kyogle Area Water Management Gauge at Kyogle A 251>Flow>15 6.2 zone (203900) B Flow>251 Richmond River Very Low Flow<=12 Lower Kyogle Area Water Management Gauge at Casino A 584>Flow>12 2.0 zone (203004) B Flow>584 Leycester Creek Very Low Flow<=1 Gauge at Rock A 38>Flow>1 Leycester Creek Water Source 0 Valley B 80>Flow>38 (203010) c Flow>80 Myrtle Creek Gauge Very Low Flow=0 Myall Creek Water Source at Rappville 0 A Flow>0 (203030) Very Low Flow=0 Myrtle Creek Gauge A 4>Flow>0 Myrtle Creek Water Source at Rappville 0 B 28>Flow>4 (203030) c Flow>28 Shannon Brook Very Low Flow=0 Creek Gauge at A 16>Flow>0 Shannon Brook Creek Water Source 0 Yorklea B 52>Flow>16 (203041) c Flow>52 Coopers Creek Very Low Flow<=8.5 Terania Creek Water Source Gauge at Ewing A 229>Flow>8.5 2.5 Bridge(203024) B Flow>229 Richmond River Very Low Flow<=1 staff gauge at the A Flow>1 and <=308 Lavelles Road crossing (203056) Upper Richmond River Water Source 0 9.4 and Richmond River B Flow>1 and >308 gauge (203005) at Wiangaree
Coopers Creek at Very Low Flow<=9 Cooper Creek Ewing Bridge Gauge 2.5 A Flow>9 (203024)
WaterNSW Discussion
19 WaterNSW