AMENDING PROCLAMATION NO. 458, DATED AUGUST 29, 1994, “RESERVING THE FOREGOING TWENTY PARCELS OF LAND AT MANGGAHAN FLOODWAY COMPLEX FOR THE CONSTRUCTION OF MEDIUM RISE SOCIALIZED AND LOW COST HOUSING PROJECT AND ITS ALLIED STRUCTURES FOR THE BENEFIT OF SOME 6,700 URBAN POOR FAMILIES AND THE DESERVING LANDLESS-HOMELESS EMPLOYEES OF THE PROVINCIAL GOVERNMENT OF RIZAL”