Barwon-Darling Flow Class Announcement

Effective Date of Announcement: 9:00 AM, Saturday, 27 Mar 2021 to 9:00 AM, Sunday, 28 Mar 2021 Announcement ID 20064

Note: If a Flow Class Announcement is not made for a period of time that applies after this Flow Class Announcement, then this Flow Class Announcement still applies.

Note: This Flow Class Announcement is made under the Water Sharing Plan for the Barwon-Darling Unregulated Water Source.

Table 1: Flow Class and adjusted CtP for each Water Management Zone

A class B class Adjusted Adjusted C class Adjusted Reference stations CTP (WSP CTP (WSP CTP (WSP CTP) Flow Flow share Management zone CTP) CTP) ML/Day class announcement ML/Day ML/Day U/S D/S U/S D/S U/S D/S U/S D/S

WaterNSW ABN 21 147 934 787 169 Macquarie Street Parramatta NSW 2150 PO Box 398, Parramatta NSW 2124 T 1300 662 077 E [email protected] waternsw.com.au No. Each eligible licence Barwon River to Boomi Barwon River at without expression of upstream of 198 176 230 270 230 1500 C River Mungindi interest to protect water Presbury Weir (198) (176) (230) (270) (230) (1500) class (16221) (416001) can take up to 1ML per (416050) IDEC. Boomi River No. Each eligible licence Barwon River Confluence to Barwon River at without expression of upstream of 176 220 270 230 270 1800 C Upstream Mogil Mogil Mogil interest to protect water Presbury Weir (176) (220) (270) (230) (270) (1800) class Mogil Weir Pool (422004) can take up to 1ML per (416050) (16222) IDEC. No. Each eligible licence Barwon River at without expression of Mogil Mogil Weir 527 877 2107 C Mogil Mogil interest to protect water Pool (16223) (220) (570) (1800) class (422004) can take up to 1ML per IDEC. No. Each eligible licence Downstream Mogil Barwon River at Barwon River at without expression of Mogil to Collarenebri 527 587 877 770 877 3170 C Mogil Mogil interest to protect water Collarenebri Main Channel (220) (317) (570) (500) (570) (2900) class (422004) can take up to 1ML per (16224) (422003) IDEC. No. Each eligible licence Barwon River at Collarenebri to without expression of Collarenebri Barwon River at 2234 1895 2417 2225 2417 4845 C Upstream Walgett interest to protect water Main Channel Tara (422025) (317) (100) (500) (430) (500) (3050) class Weir Pool (16225) can take up to 1ML per (422003) IDEC. No. Each eligible licence Barwon River at without expression of Walgett Weir Pool 2424 2724 7474 C Dangar Bridge interest to protect water (16226) (600) (900) (5650) class (422001) can take up to 1ML per IDEC.

WaterNSW ABN 21 147 934 787 169 Macquarie Street Parramatta NSW 2150 PO Box 398, Parramatta NSW 2124 T 1300 662 077 E [email protected] waternsw.com.au Downstream Barwon River at Barwon River at Yes. See announced 2424 686 2724 1156 2724 5786 C Walgett to Dangar Bridge Boorooma flow share for eligible (600) (400) (900) (870) (900) (5500) class Boorooma (16227) (422001) (422026) volume. Barwon River at Yes. See announced Boorooma to Barwon River at 782 1102 1156 1392 1156 7352 B Brewarrina flow share for eligible Brewarrina (16228) Geera (422027) (496) (550) (870) (840) (870) (6800) class (422002) volume. Brewarrina to Barwon River at Barwon River at Yes. See announced 1128 736 1418 926 1418 8416 B Brewarrina Beemery flow share for eligible (550) (570) (840) (760) (840) (8250) class Junction (16229) (422002) (422028) volume. Culgoa River at Darling River at Yes. See announced 653 614 1338 1259 1338 11009 B Junction to Bourke Warraweena Bourke town flow share for eligible (645) (605) (1330) (1250) (1330) (11000) class (16230) (425039) (425003) volume. Darling River at Yes. See announced Bourke to Louth Darling River at 614 557 1259 1132 1259 11152 B Bourke town flow share for eligible (16231) Louth (425004) (605) (555) (1250) (1130) (1250) (11150) class (425003) volume. Yes. See announced Louth to Tilpa Darling River at Darling River at 738 555 1313 1060 1313 11050 A flow share for eligible (16232) Louth (425004) Tilpa (425900) (555) (505) (1130) (1010) (1130) (11000) class volume. Darling River at Yes. See announced Tilpa to Wilcannia Darling River at Wilcannia Main 555 505 1060 900 1060 12050 A flow share for eligible (16233) Tilpa (425900) Channel (505) (455) (1010) (850) (1010) (12000) class volume. (425008) Wilcannia to Darling River at Upstream Lake Yes. See announced Wilcannia Main 505 900 12050 B Wetherell flow share for eligible Channel (455) (850) (12000) class Management Zone volume. (425008) (16234)

WaterNSW ABN 21 147 934 787 169 Macquarie Street Parramatta NSW 2150 PO Box 398, Parramatta NSW 2124 T 1300 662 077 E [email protected] waternsw.com.au Table 2: Flow Advice — Indicative Flow Class Conditions

Most likely flow class for next few days Management zone 28/03/2021 29/03/2021 30/03/2021 31/03/2021 01/04/2021 02/04/2021 03/04/2021 Mungindi to Boomi River Confluence (16221) C C C C C C C Boomi River Confluence to Upstream Mogil Mogil C C C C C C C Weir Pool (16222) Mogil Mogil Weir Pool (16223) C C C C C C C Downstream Mogil Mogil to Collarenebri (16224) C C C C C C C Collarenebri to Upstream Walgett Weir Pool (16225) C C C C C C C Walgett Weir Pool (16226) C C C C C C C Downstream Walgett to Boorooma (16227) C C C C C C C Boorooma to Brewarrina (16228) B B B B B C C Brewarrina to Culgoa River Junction (16229) B B B B B B B Culgoa River Junction to Bourke (16230) B B B B B B B Bourke to Louth (16231) B B B B A B B Louth to Tilpa (16232) B B B B B B B Tilpa to Wilcannia (16233) B B B B A B B Wilcannia to Upstream Lake Wetherell Management B B B B A B B Zone (16234)

WaterNSW ABN 21 147 934 787 169 Macquarie Street Parramatta NSW 2150 PO Box 398, Parramatta NSW 2124 T 1300 662 077 E [email protected] waternsw.com.au General flow advice and additional Information

• Significant inflows into the Barwon-Darling are continuing. • The volume of water permitted to be extracted by this announcement is 6000.9 ML. • This announcement also protects 307 ML in Management Zone 2, 1647 ML in Zone 4 and 230.7 ML in Zone 11. As this water moves through the system, CtPs will be adjusted to account for the protection of this water in accordance with Active Management Procedures. • Licence holders are reminded to update their individual expression of interest via iWAS. • Licence holders can check their individual flow share announcements in iWAS. Individual flow share announcements are also sent to registered email addresses and mobile numbers.

WaterNSW ABN 21 147 934 787 169 Macquarie Street Parramatta NSW 2150 PO Box 398, Parramatta NSW 2124 T 1300 662 077 E [email protected] waternsw.com.au