Montana Title 85. Water Use § 85-8-401. Alterations or additions to district--petition required

(1) Whenever, in the judgment of the commissioners of any drain district or drainage district, it is necessary or will be beneficial to such district to make any alteration and/or any addition to the drainage system of such district, they shall file a petition with the clerk of the court having jurisdiction of such district, in which shall be stated:

(2) Whenever such commissioners shall fail or refuse to file such petition or in event any landowners desire to file such petition, such petition may be filed by such landowners, provided the same be signed by the owners of at least 40% in area of the lands in said district.