Low dam levels intensify water quality challenges

The 2024-25 summer saw lower dam levels across many parts of the region compared to the previous year, highlighting the growing importance of farm water planning as we face consecutive dry seasons.

The pilot project “Investigation of Methane Emissions from Farm Dams in Western Australia”, led by the University of Western Australia (UWA) and supported by the South-West WA Drought Resilience Adoption and Innovation Hub, experienced first-hand how reduced water volumes can exacerbate water quality challenges.

While the project team successfully collected data on water quality dynamics in farm dams, they also encountered more fouling of the oxygen sensors than initially anticipated, including the presence of fly and mosquito eggs, despite the use of preventative copper plating.The attached images of the sensors serve as a visual reminder of the kinds of operational challenges that can arise when monitoring water quality in farm dams.

This project highlights the importance of regular water quality monitoring to safeguard livestock health and productivity during dry summers, when dam levels are low.

Field data analysis will continue through July and August, with findings expected to be available in October.

This project received funding from the Australian Government’s Future Drought Fund.

Resources

Check out the resources below for more information on managing farm dams:

Project | WaterSmart Dams

This 3.5-year project, led by the Grower Group Alliance, aims to develop knowledge and water planning tools for farmers who need their dams to work in all years and confidently make water investment decisions.

Podcast | WaterSmart Dams

The WaterSmart Dams Podcast dives into the world of water management for sustainable agriculture. Brought to you by Icon Agriculture and Compass Agricultural Alliance this series is hosted by Lavinia Wehr, with special insights from Shane from Darkan Earthmoving. This series is dedicated to sharing practical tips, expert advice, and innovative techniques for #WaterSmart farming.

GRDC presentation | WaterSmart Dams: dry years, herbicide efficacy and water quality

This presentation was delivered by Bonny Stutsel and Roberto Lujan-Rocha, from The University of Western Australia, at the 2024 GRDC Grains Research Update – Perth.