(a) Elected by the electors of zones as nearly equal in population as feasible according to the latest federal decennial census.
(b) Elected at large by position number by the electors of the district.
(2) Candidates for election from zones shall be nominated by the electors of the zones.
(3) If the directors of the water authority are elected from zones, the board of the water authority, after each federal decennial census, shall adjust the boundaries of the zones to make them as nearly equal in population as feasible. [1987 c.863 §5; 1993 c.577 §22]