Performs control tests on water samples to determine chlorine and fluoride residual, pH, alkalinity, turbidity, color, saturation index and flocculation factors; under supervision, conducts water analysis and regulates treatment chemical dosages to maintain water quality in filtration plant, distribution system, or other large complex facility may also be required to perform water analysis on water/wastewater as required by the State of California; performs boiler water and cooling tower chemical tests, including pH, alkalinity TDS, etc., to monitor and control growth of organisms in water. Minimum Qualifications:Experience: Four (4) years of verified journey-level stationary engineer experience in the maintenance, repair and operation of a variety of mechanical and electrical pumping, heating, air conditioning, ventilating and related plant machinery used in a government establishment, hospital, industrial, production or commercial buildingLicense and Certification:Possession of a valid California Driver's License ANDPossession at time of hire a Universal Chlorofluorocarbon (CFC) certificate issued by the Federal Environmental Protection Agency.