For the purpose of coordinating its activities with the needs and undertakings of other local organizations and groups, the board of directors may establish an advisory board consisting of the chairman of the board of directors of the authority (who shall be chairman of the advisory board) and of sufficient members to represent adequately so far as feasible industry, commerce, agriculture, recreation, the general public, any official planning and developmental bodies in the area and organized citizens groups working for the development of the Bear Creek Watershed.