The owner or owners of lands which have not been, are not and cannot be benefited by their inclusion in the watershed conservancy district may petition the board of supervisors to have such lands detached. The petition shall describe such lands and state the reasons why they should be detached. A hearing shall be held within 30 days after the petition is received. Due notice of such hearing shall be given at least 10 days before the hearing. If it is determined by the board of supervisors that such lands shall be detached, such determination shall be certified to the judge of probate of each county in which any portion of such lands lie. After recording, the certification shall be filed with the State Soil and Water Conservation Committee.