Where there are holes, excavations, breaks, projections, obstructions, icy conditions, uncleared snow, excretions of pets and other animals on paths, walks, driveways and other parts of premises which are accessible to and are used by persons on the premises, all such holes and excavations shall be filled and repaired, walks and steps replaced and other conditions removed where necessary to eliminate hazards or unsanitary conditions with reasonable dispatch upon their discovery.