(b) Each member shall be a resident of the city, town or county for which such board has been created and shall be a qualified elector thereof. For any county not wholly included within a city, at least one but not more than three of such members shall be a resident or residents of and be appointed from each one of the cities contained in the county, and the balance of such members shall be appointed from the county at large.
(c) The term of office of such members shall be three years, except that the members first appointed to such board shall be appointed as follows: one-third shall be appointed for a term of three years; one-third for a term of two years and the remaining members of the board for a term of one year. Upon the expiration of the term of office of any member, his or her successor shall be appointed to membership in such board for a term of three years.
(d) The members of such board shall receive no compensation for services but shall be entitled to their reasonable and necessary expenses, incurred in the performance of their duties, within any appropriation made for such purpose.