Border ROSCCo 22 July 2020 - (River Operations Stakeholder Consultation Committee) - WaterNSW
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Border ROSCCo
(River Operations Stakeholder Consultation Committee)
22 July 2020
Border Rivers Map 2 WaterNSW
Part 1 - Overview of 2019/2020 • Rainfall and climate • Allocations and Usage • Restrictions applied • Supplementary access • 14 media releases relating to restrictions and extraction in northern valleys alone from 17 Jan to 25 Feb 2020 • https://www.waternsw.com.au/__data/assets/pdf_file/0007/145285/Operations- Update-Border-Rivers-1-July.pdf • https://www.waternsw.com.au/about/newsroom/2020/324-temporary-pump- restrictions-for-northern-valleys 3 WaterNSW
Rainfall – last 24 months 4 WaterNSW
Rainfall – last 12 months 5 WaterNSW
Temperature – last 12 months 6 WaterNSW
Rainfall – last 3 months 7 WaterNSW
2019/20 Water
Availability
https://waterregister.waternsw.com.au/water-register-frame
8 WaterNSWNorthern Basin First Flush Event
• The 2020 Northern Basin First Flush Event:
• Followed an extensive period of hot and dry conditions with record low rainfall and record low inflows
• Included significant inflows from across the Northern Basin including the Border, Moonie, Gwydir, Namoi, Culgoa,
Bokhara, Macquarie, Bogan and Warrego systems.
• Involved a large number of Temporary Water Restrictions being placed on extractions in the Northern Basin.
• Raised issues regarding communication and decision making processes.
• Resulted in the appointment of an Independent Panel to assess the management of the event
– https://www.industry.nsw.gov.au/water/allocations-availability/northern-basin-first-flush-assessment
– Terms of Reference, consultation, Water User Reference Group
– Final report with recommendations – end of August 2020
• Resulted in around 585 GL of inflow arriving into the Menindee Lakes system.
WaterNSW published regular Operations Updates throughout the event at
https://www.waternsw.com.au/supply/regional-nsw/operations-updates
A draft report is available at https://www.industry.nsw.gov.au/water/allocations-availability/northern-basin-first-
flush-assessment
A webinar will also be held on Monday 27 July from 1:00 to 2:30pm. For details or to sign up use the above link.
9 WaterNSWMedia releases • 17 Jan - https://www.waternsw.com.au/about/newsroom/2020/324-temporary- pump-restrictions-for-northern-valleys • 26 Jan - https://www.waternsw.com.au/about/newsroom/2020/pump-restrictions- lifted-for-peel-high-security-and-unregulated-use-on-mooki-and-quirindi-systems • 31 Jan - https://www.waternsw.com.au/about/newsroom/2020/324-pump- restrictions-extended-for-northern-valleys • 7 Feb - https://www.waternsw.com.au/about/newsroom/2020/temporary-rule- change-to-allow-some-stock-water-trade • 7 Feb - https://www.waternsw.com.au/about/newsroom/2020/temporary-pump- restriction-on-floodplain-harvesting • 10 Feb - https://www.waternsw.com.au/about/newsroom/2020/approval-to-take- under-temporary-water-restrictions-information • 11 Feb - https://www.waternsw.com.au/about/newsroom/2020/approval-to-take- under-temporary-water-restrictions-11-february • 11 Feb - https://www.waternsw.com.au/about/newsroom/2020/324-orders-on- floodplain-harvesting-in-the-northern-basin 10 WaterNSW
Media releases • 12 Feb - https://www.waternsw.com.au/about/newsroom/2020/amendment-to- temporary-pump-restriction-on-floodplain-harvesting • 12 Feb - https://www.waternsw.com.au/about/newsroom/2020/temporary- water-restriction-northern-nsw-murray-darling-basin-yarraman-creek-12- february-2020 • 13 Feb - https://www.waternsw.com.au/about/newsroom/2020/temporary- water-restrictions-on-river-and-overland-flows-in-the-northern-basin • 14 Feb - https://www.waternsw.com.au/about/newsroom/2020/324-pump- restrictions-extended-for-northern-valleys2 • 21 Feb - https://www.waternsw.com.au/about/newsroom/2020/barwon-darling- flows-a-blessing-for-towns,-farmers • 25 Feb - https://www.waternsw.com.au/about/newsroom/2020/324-pump- restrictions-lifted-in-namoi,-border-rivers 11 WaterNSW
Supplementary Access 19/20
2019/2020 WATER YEAR
FLOW EVENT No 1 (February March 2020)
Volume Passing Volume Passing
BOOBA Boggabilla
SANDS GLENARBON HOLDFAST Weir MUNGINDI
G/S G/S G/S Goondiwindi G/S
(ML) (ML) (ML) Flow (ML) (ML)
9/02/2020 0 1 40 2860 18-Feb-20 537
10/02/2020 4618 79 115 13/02/2020 0:00 4359 19-Feb-20 1593
11/02/2020 6863 206 70 14/02/2020 0:00 7063 20-Feb-20 2104
12/02/2020 1262 124 146 15/02/2020 0:00 8010 21-Feb-20 3024
13/02/2020 4090 50 150 16/02/2020 0:00 13544 22-Feb-20 3732
14/02/2020 4692 1910 150 17/02/2020 0:00 10181 23-Feb-20 4333
15/02/2020 867 10595 280 18/02/2020 0:00 11501 24-Feb-20 4975
16/02/2020 469 14364 260 19/02/2020 0:00 12915 25-Feb-20 5300
17/02/2020 368 7907 340 20/02/2020 0:00 14456 26-Feb-20 5131
18/02/2020 247 13868 293 21/02/2020 0:00 10033 27-Feb-20 4517
19/02/2020 305 7910 4004 22/02/2020 0:00 6201 28-Feb-20 2352
20/02/2020 189 10161 5028 23/02/2020 0:00 3827 29-Feb-20 1602
21/02/2020 105 6362 2481 24/02/2020 0:00 2475 1-Mar-20 1379
22/02/2020 70 3986 1094 25/02/2020 0:00 1363 2-Mar-20 1086
23/02/2020 52 2709 714 3-Mar-20 1006
24/02/2020 40 1945 570 4-Mar-20 847
25/02/2020 37 1569 440 total 105928 5-Mar-20 757
26/02/2020 33 1297 363
Total 42981
12 WaterNSWWater Sharing Analysis
Announce 1 Announce 2 Announce 3 Announce 4
Review
14-Feb-20 17-Feb-20 20-Feb-20 24-Feb-20
Flow @ Boggabilla 44504 84512 108976 102090 105928
add extraction u/s Boggabilla 0 0 0 1500 7377
add Weir River inflow 0 0 0 0 22548
Balance 44504 84512 108976 103590 135853
less water order d/s Goondiwindi 0 0 0 0 0
less fill Boggabilla weir 0 0 0 0 0
Balance 44504 84512 108976 103590 135853
less transmission loss % 30.0% 30.0% 35.0% 20.8% 31.0%
Balance 31153 59158 70834 82043 93738
less 25% environmental share 7788 14790 17709 20511 23435
Available for Sharing 23365 44369 53126 61532 70304
Queensland NSW Mungindi flow check
State Share 35152 35152 flow @ Mungindi 42981
Announced Share 30766 9594 less un-announced share 20661
Announced hours/% 3% to 25% less unextracted share 2715
Balance 19605
less take d/s of Mungindi 3427
Extraction (Total) 27216 9209 Balance (Pass Flow Volume) 16178
Required Pass flow Volume 16170
Queensland NSW
Un-Announced Share 4386 25558 29944
Queensland NSW Total (Qld + NSW)
Metered take - D/S of Mungindi 3427 0 3427
Queensland NSW Total (Qld + NSW)
Unextracted share 3550 385 3935
13 WaterNSW
event loss applied to unannounced share and to unextracted share
event loss applied to environmental share
NSW extractions ranged from from 3% in upstream sections up to 25% at MungindiPart 2 - Current Situation • Drought Update • Drought Map • Inflows • Allocations • WNSW Water Insights Portal 14 WaterNSW
WaterNSW
Regional drought map WaterNSW
Border Rivers Inflows • Glenlyon Dam inflows since Jan 2020 to end June 2020 have been 29GL • Just below 50th%ile of 30GL • Glenlyon Dam inflows since July 2018 to end June 2020 have been 46GL just below 95th%ile of 48GL 17 WaterNSW
Border Rivers Inflows • Pindari Dam inflows since Jan 2020 to end June 2020 have been 30GL • Below 50th%ile inflows of 43GL • Downstream tributary flow has been approximately 161GL. • Pindari Dam inflows since July 2018 to end June 2020 have been 45GL below previous minimum of 65GL • Downstream tributary flow for the 24 month period has been approximately 165GL. (minimum 108GL, 95th%ile 236GL) • The 24 month period Feb 2018 to Jan 2020 (inclusive) tributary inflows were approximately 7GL. The previous minimum was 65GL for any consecutive 24 month period. 18 WaterNSW
Water Insights
• Storage levels
• Inflows
• Releases
• Compare
multiple years
• Allocations
• Outlook
• more
19Glenlyon & Pindari Dam https://waterinsights.waternsw.com.au/14681-border-regulated-river/storage 20 WaterNSW
Allocations (screen shot from Water Insights) 21 WaterNSW
Part 3 – Outlook for 2020/2021 • Storage Forecasts • Climate outlook • Allocations and Operations 22 WaterNSW
Storage Forecast Pindari 23 WaterNSW
Storage Forecast 24 WaterNSW
Rainfall outlook August to October 25 WaterNSW
Rainfall outlook September to November 26 WaterNSW
Operations
2020/2021
River section Licence Type of restriction Period of Method of placing
category applicability water order
Glenlyon High Security Delivery of account Until further Via iWAS or the help
Dam to the water will be made using notice desk.
Junction tributary flows where
General Security possible and generally
not from dam releases. Confirmation of water
order from WaterNSW
Stock & is required.
Domestic A water order is still
required to be placed
and needs to be
approved by WaterNSW.
Pindari Dam High Security Delivery of account Until further Via iWAS or the help
to the water will be made using notice desk.
Junction tributary flows where Confirmation of water
General Security possible and generally order from WaterNSW
not from dam releases. is required.
Stock & A water order is still
Domestic required to be placed
and needs to be
approved by WaterNSW.
27 WaterNSWOperations
2020/2021
River section Licence Type of restriction Period of Method of placing
category applicability water order
Downstream High Security No Dam releases will be Until further Via iWAS or the help
of the made to supply orders or notice desk.
Junction to the Boomi replenishment Confirmation of water
Mungindi General Security flow.
order from WaterNSW
is required.
Stock & Domestic Limited access may
become available from
tributary inflows.
A water order is still
required to be placed
and needs to be
approved by WaterNSW.
All river Local Water Releases will be made to Until further Via iWAS or the help
sections Utility and Town ensure supplies for towns notice desk.
Water Supplies including Goondiwindi Confirmation of water
and Boggabilla, however order from WaterNSW
releases are not able to is required.
be made to supply
Mungindi.
28 WaterNSWDiscussion Points
• Potential Block release
• S&D/riparian/replenishment/general security
• Potential deliveries Pindari to Junction 2020/2021
29 WaterNSWWater Carting Rebate • $2000 Water Carting rebate available through Service NSW • https://www.service.nsw.gov.au /transaction/apply-water- carting-rebate • helps with the cost of carting water or installing water tanks and pipes • to help secure domestic water needs • currently available downstream of Goondiwindi 30 WaterNSW
To keep updated
Visit the website at:
waternsw.com.au/drought
For information including water availability reports and
drought reports go to:
https://www.waternsw.com.au/supply/drought-
information/regional-nsw
Call us on:
1300 662 077
Subscribe at:
waternsw.com.au/subscribe
For weekly customer drought updates and more
information
31 WaterNSWEnd of Presentation WaterNSW
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