Cal. Pub. Util. Code § 98114

The board may adopt a personnel system for the purpose of recruiting and maintaining an effective working force with good morale. The board shall by resolution determine and create such number and character of positions as are necessary properly to carry on the functions of the district and shall establish an appropriate salary, salary range, or wage for each position so created. The board may by resolution abolish any such position. Except as otherwise provided, appointments to such positions shall be made by the general manager.