(1) Whether a full ecological health assessment has been conducted in Centurion Lake in the past three years; if not, why not; if so, what were the findings; Friday, 22 February 2013] 50 INTERNAL QUESTION PAPER: NATIONAL ASSEMBLY NO 2 ─2013 (2) (a) who monitors the lake in respect of its continued (i) viability, (ii) sustainability and (iii) impact on the surrounding (aa) natural and (bb) built environment, (b) when did this begin and (c) at what cost to the fiscus thus far?