Michigan Compiled Laws, Chapter 486. Water and Power Companies § 486.14

Sec. 14. Meetings of the members of the association may be called by any director, and it shall be the duty of any director to call a meeting of the members of said association on the written application of 3 members thereof. In all cases other than the annual or regular meetings, notice of such meeting, and of the time and place thereof shall be given by personal service thereof, if practicable, otherwise by posting a notice of such meeting on the premises of each member not personally served, in a conspicuous place, at least 24 hours before the time of meeting, and proof of the time and manner of such service by affidavit of the person serving the same shall be made and filed with the secretary of the association.