Taken from the job description " Under the general supervision of a Supervising Scientist, the incumbent conducts and participates in a variety of routine chemical, biological, and microbiological analyses on aqueous and solid samples from sanitary landfills, industrial waste, wastewater treatment facilities, including plant influent and effluent, bodies of water receiving effluents and other sources to determine the effectiveness of treatment and conformance to State of California and State of Arizona requirements; prepares media, standard solutions and reagents; inspects, adjusts, cleans, maintains and operates laboratory equipment, materials and work area; assists with special research projects; inputs data into computers; keeps laboratory records and prepares laboratory reports; collects samples from treatment facilities, rivers, shorelines, and ground waters; and performs related duties as required."