Final report on Project MIL1 : Objectives 1. To develop a practical set of hydraulic performance indicators for a gravity fed irrigation system which could be applied nationally and internationally; 2. To evaluate the econo mic benefits of the hydraulic performance indicators; 3. To evaluate different options to improve hydraulic performance; 4. To develop incentives to encourage both water managers and irrigators to achieve optimum irrigation and drainage efficiency and minimise impacts on streams and aquifers.