(1) With reference to mining in Mpumalanga which takes place on 1.1 million hectares of agricultural land, including mining in the Vaal River catchment area, which is a big concern, (a) what steps are being taken to ensure that Rand Water is on track to deal with the impact of acid mine drainage on the water supply and (b) what plans are in place to ensure that Gauteng does not come to a standstill, if Rand Water fails in its mandate to provide clean water thereby impacting the economy; (2) whether he has found that the mining legislation and legislation on environmental affairs have failed; if so, what steps does he intend to take to change relevant pieces of legislation in the future?