(1) Whether, with reference to her reply to question 3642 on 13 December 2011, any further work has been done to establish whether the National Water Act, Act 36 of 1998, is sufficient for the purposes of controlling hydraulic fracturing; if not, why not; if so, what are the relevant details; (2) whether any officials of her department had interactions with the task team established by the Minister of Mineral Resources to investigate hydraulic fracturing since her reply; if not, why not; if so, what are the relevant details; (3) whether the Water Research Commission has conducted any research into the impact of hydraulic fracturing on water; if not, why not; if so, what were the findings?