The notice of the time and place of hearing shall be given to any owner, or reputed owner, of the property which is listed on the roll as aforesaid, by mailing a copy thereof at least thirty days before the date fixed for the hearing to the owner or owners at his or her or their address as shown on the tax rolls of the county treasurer for the property described. In addition thereto, the notice shall be published at least once a week for three consecutive weeks in a newspaper of general circulation in the district. At least fifteen days must elapse between the last date of publication thereof and the date fixed for the hearing.