The holders of title representing one-half or more of any body of land within the same watershed as an existing district may file with the board a written petition praying that the boundaries of the district may be so changed as to include their land. The land need not be contiguous to the existing boundaries of the district and need not consist of contiguous parcels. A copy of the petiton shall be filed with the board.

The petition shall describe the boundaries of the parcel or tract of land and the boundaries of the several parcels owned by the petitioners, if the petitioners are the owners, respectively, of distinct parcels. The descriptions need not be more particular than they are required to be when such land is entered by the county assessor in the assessment book.

The petition shall be acknowledged, and shall contain the assent of the petitioners to the inclusion within the district of the land described in the petition and of which the petition alleges they are the owners.

The board shall cause a notice of the filing of the petition to be published in the same manner and for the same time that notices of special elections for the issue of bonds are required by this division to be published.

The notice shall state all the following:

The petitioners shall advance to the board sufficient money to pay the estimated costs of all proceedings upon the petition.