(1) Whether the National Nuclear Regulator has made any contribution to the remediation of radiological impact of (a) current and (b) past mining activities in the Wonderfonteinspruit since 1 January 2009; if not, why not; if so, what are the relevant details; (2) whether a remediation steering committee currently exists; if not, why not; if so, (a) what are the dates of the last two meetings of the committee and (b) when is the next meeting due to take place; (3) (a) what are the names of the persons currently serving on the committee and (b) what organisations do they represent; (4) whether any challenges are being experienced in the operation of this committee; if not, how was this conclusion reached; if so, what are the relevant details?