By what date is it envisaged that asbestos houses will be eradicated in the communities of (a) Diplankeng village in the Greater Taung Local Municipality, Pampierstad in Northern cape and (b) Promosa in the JB Marks Local Municipality where residents have been staying in old apartheid houses with asbestos roofing, with some even having all asbestos structures which is a serious health hazard that has already claimed may lives?