Whenever the legislative body determines that it is economically sound and in the public interest for the district to rehabilitate facilities that were not identified in the resolution of intention to create the district, or to rehabilitate public facilities located in territory that is not within the boundaries of the district, or to levy an assessment, or impose a special tax, fee, or charge that was not described in the resolution of intention to create the district, it may grant that authority to the district. The legislative body may grant that authority by adopting a resolution of intention to change the authority of the district, publishing a notice of that intention, holding a hearing, and adopting a resolution to change the authority of the district in the same manner as is required for the adoption of a resolution of intention to establish the district pursuant to Section 53373.