This section provides information on the different sources of water, including shallow or deep groundwater, precipitation, surface water, or desalinised seawater. Preserving existing water sources (e.g. through moisture control techniques or water-saving technologies in households, industry and agriculture), resulting in a decreased water use, can also be considered part of water sources, as water saved becomes available for other purposes.
An even more exhaustive collection of software and hardware tools can be found in SSWM Water Sources Implementation Tools.