The Water Administration System (WAS) is designed to be a management tool for irrigation schemes and water management offices that want to manage their water accounts and water supply to users through canal networks, pipelines and rivers. WAS is developed and maintained by NB Systems cc. Financial contributions for the development of WAS were made by the Water Research Commission  (WRC) and the Department of Water Affairs and Forestry (DWAF). The WAS program is currently in use at all the major irrigation schemes and a number of smaller irrigation boards throughout South Africa. (User list and contact details) ●  Application areas ●  Benefits ●  Modules ●  Features ●  User requirements 1.1  Purpose The Water Administration System (WAS) is designed to be a management tool for irrigation schemes, Water User Associations (WUA’s), Catchment Management Agencies (CMA’s) and water management offices that want to manage their water usage, water distribution and water accounts.  WAS can handle any number of abstraction points and measuring stations on canal networks, pipelines and rivers. 1.2  Application areas WAS is an integrated database driven system with many water management capabilities.  WAS can be implemented in a small water office that manages a few abstractions and measuring stations up to a CMA level that manages thousands of abstractions and measuring stations.  WAS is used for the efficient administration of: ●  Address information. ●  Scheduled areas. ●  Water quota allocations. ●  Water delivered through pressure-regulated sluice gates, measuring structures and water meters. ●  Water transfers between users (Automatic and manually). ●  Water use calculations for planted areas based on crop water use data. ●  Date and time related flow data collected from electronic loggers or mechanical chart recorders. ●  Discharge tables (DT) to do conversions between water depth and flow rate for measuring structures or visa versa. ●  List of rateable areas (LRA) information. ●  Calculation of scheme water balances. ●  Calculation of water releases for water distribution through canal networks, pipelines and rivers taking lag times, evaporation, transpiration and seepage into account. ●  Billing system that links to the water usage information. ●  Flexible tariff sets based on water usage, a flat rate or scheduled area. ●  Images and photos that can be linked to different types of information in the database. ●  Mail merge facility for sending letters to clients.