NSW Sustainable Diversion Limit Adjustment Mechanism projects

Sustainable Diversion Limit Adjustment Mechanism (SDLAM) is a way to achieve similar or even better environmental outcomes for rivers, wetlands and wildlife using less water as part of the Murray-Darling Basin Plan.

SDLAM projects

SDLAM can be achieved through supply, including constraints, or efficiency measures. For more information about how the measures work, visit Murray-Darling Basin Authority.

In 2017, the Basin states and the Commonwealth agreed on a package of 36 SDLAM projects across the southern connected Murray-Darling Basin.

NSW Government is currently developing 9 projects, in collaboration with local communities, key stakeholders and other Basin states, with funding from the Australian Government.

Why SDLAM is important

The Murray Darling Basin Plan was developed to improve and maintain healthy rivers and floodplains, while supporting sustainable agriculture, industries and communities. The Basin Plan is about more than water recovery, it is about striking a balance to ensure a resilient and productive environment for the future.

Water for the environment recovered through the Basin Plan will not solve all the river health issues. There simply is not enough water to simulate the large-scale events needed to reconnect the rivers to the floodplains as often and to the extent they need.

SDLAM projects further the significant works already completed under the Basin Plan. Better environmental outcomes can be achieved without the need for additional water recovery through infrastructure, changing rules to deliver water to high value environmental sites and changing the way rivers are managed. Often infrastructure, such as flow regulators, pumps or channels, are the only way to get water to key environmental sites in the volumes needed. Another option is to ease constraints to the delivery of water for the environment, allowing managed higher flows down the river to connect rivers and floodplains more often.