Whether any bonuses were paid to (a) junior and (b) senior employees of the Department of Water in the 2010-11 financial year; if not, what is the position in this regard; if so, (i) how many employees received bonuses in each case, (ii) what criteria were used to determine to whom bonuses were to be paid and (iii) how much money was spent on bonuses (aa) in each case and (bb) in total?