Environmental Deliveries in Gwydir
Mallowa: commenced 5 Dec 2025 and are planned to continue through to April 2026.
Lower Gwydir: commenced 3 Oct 2025 finishing shortly after 3 months of watering.
Gingham: commenced 1 Dec 2025 at of 50 ML/d increasing to 100 ML/d (maximum through raft) through to Boyanga Waterhole. Flows likely
to cease Feb 2026.
Whittakers Lagoon: Is expected to fill early in the new year.
Mehi River: Lower Mehi fish deliveries commenced 13 Dec 2025 connecting with the Barwon River to create local fish movement
between the rivers.
Barwon River: CEWH and NSW CPHR are planning releases from the Border Rivers and Gwydir to support base flows in the Barwon between Mungindi and Walgett commencing in Dec, likely continuing for 3-4 weeks. Flows from the Gwydir will be via both the Mehi and the
Carole – details are still being determined in conjunction with WNSW river operators.