Central Contra Costa Sanitary District   UTILITY WORKER Annual Salary:  $85,265 - $103,284 Plus excellent benefits   Central San, a progressive public utility, is seeking a Utility Worker. This position will perform a variety of semi-skilled maintenance and mechanical duties supporting the operation of the wastewater treatment plant and/or the Collection System Operations facility. Duties will include performing buildings, grounds, and landscape maintenance duties.   Education: Equivalent to the completion of twelfth (12th) grade.   Experience: One (1) year of full-time experience in the main