Whether her department is aware of alleged non-compliance with several pieces of landfill-related legislation at the (a) Modimolle, (b) Vaalwater, (c) Bela-Bela, (d) Mookgophong and (e) Thabazimbi landfill sites in Limpopo; if not, (i) why not, (ii) will her department (aa) launch investigations and (bb) take steps in this regard; if so, what steps have been taken in this regard to ensure compliance with the prescribed legislation?