If, after five years from the date of creation of an industrial district under the provisions of this act, the land therein is not being used for the intended purpose, such district may be dissolved by the board of county commissioners which organized said district on petition by the county attorney of the county in which it was organized. Upon the filing of such petition, the board of county commissioners shall forthwith fix a time and place for the hearing of such petition and cause the county clerk to give notice thereof by one publication in some newspaper published and of general circulation in the county at least fifteen (15) days before the day fixed for the hearing.