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Border Roscco Presentation for 22 July 2020.Pdf 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 WaterNSW Northern 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 WaterNSW Media 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 WaterNSW Water 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 WaterNSWevent 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 Mungindi Part 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 19 Glenlyon & 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 General Security Confirmation of water 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 WaterNSW Operations 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 General Security Confirmation of water Mungindi 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.
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