These requirements include microbiological, chemical and physical properties of the water. Safe drinking water (that complies with SANS 241) does not pose a significant risk to health over a lifetime of consumption, including life stages with increased sensitivity (infants, babies, elderly and the immuno-compromised).
SANS 241 shows various properties of water need to be checked to determine if water is safe for consumption. SANS 241 categorizes the properties of water into 4 main risk categories and states the minimum values that water must conform to before being considered safe drinking water.
This is especially important when changing over to borehole water for your hotel / facility. If you are outside of the major cities, it is also worthwhile having your water tested against the SANS 241 standard.