International Association of Hydrogeologists Australia

The cost of managed aquifer recharge in Perth


How much does managed aquifer recharge (MAR) really cost? What about all the energy needed to transport and inject water? Is it better than other sources of water? The unhelpful answer is that it depends on the setting. To move beyond this, Ian does the maths for a specific example: water for landscape-irrigation in Perth. He compares a variety of water sources, including MAR, rainwater tanks, desalination and piped water. He also assesses each water source’s energy requirements and greenhouse gas emissions. You’ll see some interesting outcomes that can guide our water resource strategies.


About the speaker

Ian Brandes de Roos is a Principal Hydrogeologist with over 20 years’ experience in the Australian groundwater industry. Ian has developed specialist expertise in MAR, major dewatering and water supply projects, environmental impact assessments and geothermal projects. Prior to working as a hydrogeologist, Ian worked as a geologist and geophysicist, followed by PhD studies in hydrogeology and geophysics.


Due to the COVID-19 restrictions, the Theatrette can currently host only 40 people and we are not allowed to stand around in the foyer. For this reason, it is of paramount importance that you secure your seat by registering on line and walk directly to the Theatrette as you arrive at the conference centre.

The event will be streamed via MS Teams. Please connect here to attend on line.

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