The term"sustainable use"in this poster will be defined as"the use of groundwater that meets specific needs of the present,and can be maintained into the future,without detracting from the satisfaction of other needs in the present or future.This poster will examine the sustainable use of groundwater from recharge aquifers in the Swaziland Highveld(altitude greater than 1800 m).The aquifer system forms part of the Precambrian Basement Complex which is