(a) Not later than the 10th day before the date set for a hearing other than a permit application hearing, the district shall deliver or mail notice of the hearing to:
(1) each county, regional water supplier, and municipal government in the district; and
(2) each person that the board considers to have an interest in the subject matter of the hearing.
(b) Not later than the 10th day before the date set for a hearing, the district shall:
(1) publish notice of the hearing once in a newspaper of general circulation in each county in the district; and
(2) provide a copy of the notice of the hearing to the county clerk to be posted at the county courthouse of each county in the district in the place where notices are usually posted.