1. ftp://www.rubicon.com.au/tvnews/2008 5 th World Water Forum - Istanbul Theme 2.3.1 How to achieve the required food production to meet the growing demand Increasing Irrigation System Efficiency Tony Oakes & Tugba Erol Rubicon Systems 17 March, 2009

2. Overview Irrigation is key to producing more food Irrigation consumes approximately 70% of the world’s water Gravity channel systems are the dominant delivery mechanism – unlikely to change Operating technology has changed little since the early civilizations - inefficient Modern infrastructure and control engineering can increase distribution efficiencies from ~50-70% to ~70-90% This realizes massive water savings

3. Reconfiguring Systems

4. Q Traditional Operation (Upstream Level Control) Changing the Paradigm Distribution Efficiency 50-70% Typical

5. Q Modern Operation (Total Channel Control®) Distribution Efficiency Up to 90% demonstrated Changing the Paradigm

6. Diversions To Irrigation Districts Goulburn- Murray Water ~2500GL Metered Allocation To Irrigators ~1750GL Unaccounted For Water ~750GL Meter Error Actual Usage by Irrigators Outfalls Leakage & Seepage Evaporation On Farm Loss Water used By Plant/Crops Water Usage and Infrastructure Recovery Options An example - Victoria, Australia Source:Water Savings in Irrigation Distribution Systems, Sinclair Knight Merz, 2000 Rubicon Systems Australia, based on trials in Central Goulburn District By Comparison Melbourne’s Usage ~470GL TCC on Channels(100%) Accurate Meters (100%) Lining (up to 80%) ~10% - 250GL ~8% - 200GL Scheduling/Automation INFRASTRUCTURE REFORM TARGET

7. Diversions To Irrigation Districts Goulburn- Murray Water ~2500GL Metered Allocation To Irrigators ~1750GL Unaccounted For Water ~750GL Meter Error Actual Usage by Irrigators Outfalls Leakage & Seepage Evaporation On Farm Loss TCC Water used By Plant/Crops Source:Water Savings in Irrigation Distribution Systems, Sinclair Knight Merz, 2000 Rubicon Systems Australia, based on trials in Central Goulburn District By Comparison Melbourne’s Usage ~470GL TCC on Channels(100%) Accurate Meters (100%) Lining (up to 80%) ~10% - 250GL ~8% - 200GL Scheduling/Automation Water Usage and Infrastructure Recovery Options An example - Victoria, Australia

8. Diversions To Irrigation Districts Goulburn- Murray Water ~2500GL Metered Allocation To Irrigators ~1750GL Unaccounted For Water ~750GL Meter Error Actual Usage by Irrigators Outfalls Leakage & Seepage Evaporation On Farm Loss Water used By Plant/Crops Source:Water Savings in Irrigation Distribution Systems, Sinclair Knight Merz, 2000 Rubicon Systems Australia, based on trials in Central Goulburn District By Comparison Melbourne’s Usage ~470GL TCC on Channels(100%) Accurate Meters (100%) Lining (up to 80%) ~10% - 250GL ~8% - 200GL Scheduling/Automation Manual 60%-70% Efficiency TCC 85%-90% Efficiency Water Usage and Infrastructure Recovery Options An example - Victoria, Australia