Ariz. Rev. Stat. § 48-2907
When the petition has been filed with the board of supervisors and the bond approved, the board shall fix a time for hearing the petition which shall be not less than three nor more than seven weeks after the date of filing the petition. The board of supervisors shall cause the petition, together with a notice signed by the clerk of the board of supervisors giving the time and place of hearing the petition, to be published for at least two weeks in a newspaper published in the county, or if no newspaper is published in the county, in a newspaper published in an adjoining county, and by posting copies of the petition and notice in three or more conspicuous places in the proposed district at least two weeks before the date set for hearing.
A.R.S. § 48-2907