At such time as the department determines that continued residence in a residential facility will no longer benefit a person with an intellectual disability, the department shall arrange for the discharge or transfer of such person from the residential facility. The department shall give reasonable notice to the person authorized to make an application for admission for such person under subsection (1) of section 83-383 that the department intends to discharge or transfer such person. The department shall also be responsible for the placement of such person in any other available program or facility and in the development of other methods for the care, treatment, and training of such person.