The manner of selection of such governing body and terms of office shall be set forth in the agreement provided for in section three of this article and amendments thereto. The governing body of the authority shall elect one of its members as president, one as treasurer and one as secretary.
Each member shall have one vote in any matter that comes before the authority for decision. However, the member agencies shall, in the original agreement establishing the authority, set forth any special weighing of such votes based upon population served, volumes of water purchased, volumes of wastewater treated, numbers of customers, or some other criterion, so as to maintain fairness in the decisions and operations of the authority.