(1) What is the licensing status in terms of the National Environmental Management: Waste Act, Act 59 of 2008, of each landfill site in Gauteng; (2) whether the owner of each landfill site that is not correctly licensed has submitted a licence application; if not, what is the position in this regard; if so, when can it be expected that a licence will be issued in each case; (3) whether a risk assessment has been conducted on each landfill site in Gauteng to determine possible threats to water courses; if not, why not; if so, what are the relevant details; (4) whether any action has been taken against any owners of landfill sites in terms of the National Environmental Management: Waste Act, Act 59 of 2008; if not, why not; if so, what are the relevant details?