A permittee shall dispose of animal and food waste, bedding, dead animals, trash, and debris. Disposal facilities shall be provided and operated to minimize vermin infestation, odors, and disease hazards. Rehabilitators shall comply with all applicable laws pertaining to disposal. A suitable sanitary method shall be provided to rapidly eliminate excess water from indoor housing facilities. If drains are used, they shall be constructed and installed to prevent backup of sewage and kept in good repair to avoid foul odors.