Total volume of irrigation water (surface plus ground) directly available to users, MCM - using stated conveyance efficiencies for surface and ground water supplies. It includes water delivered by project authorities as well as water pumped by the users themselves. Water users in this context describe the recipients of irrigation service, these may include single irrigators or groups or irrigators organized into water user groups. This value is used to estimate field irrigation efficiency; it is not used to estimate project irrigation efficiency.