Central Contra Costa Sanitary District   CHEMIST I/II Annual Salary:  $109,055 - $132,054 Plus excellent benefits   Central San, a progressive public utility, is seeking a Chemist I/II. This position will perform a variety of specialized chemical, biochemical, bacteriological, microbiological, and toxicity analyses of water, receiving waters, wastewater, and related solid sand by-products relevant to wastewater collection, treatment, and disposal; collect samples; and perform and/or assist in the conduct of complex research projects.   Eligible to apply for advancement to the level II position ($4,728 - $57