(1) What are the locations of all current decant points of acid mine drainage (AMD) on the West Rand; (2) what was the (a) pH and (b) sulphate level of the water during the decant of AMD from the property of Rand Uranium in 2002; (3) what is the (a) pH and (b) sulphate level of the AMD decanting from the property of Rand Uranium as at the latest specified date for which information is available; (4) whether there is a difference in the pH and sulphate levels of the current decant and the 2002 decant; if not, what is the position in this regard; if so, what is the reason for the difference?