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JOB CLASSIFICATION LABORATORY <br />TECHNICtAN <br />RESPONSIBLE TO SUPERVISING CHEMtST <br />NATURE OF WORK: <br />This is technical work performing a considerabie volume of standard chemical <br />and bacterioiogical test in the laboratory af the municipal wastewater treatment plant. <br />Incumbents in this class conduct routine laboratory tests, technical <br />preparation of sa(utions and media as well as participate in the specialized sampling, <br />test, and investigations of water quality control or industrial wastewater pollution <br />control. Tests are performed according to well designed and standardized <br />procedures, but require accurate and skifled application af laboratory techniques as <br />well as the competence to modify standard test and develop new procedures when <br />necessary. 1Nork is performed under the genera( supervision of the Assistant <br />Superintendent - Plant Operations, who provides specifc instructions or new or <br />modified procedures, and who inspects testing methods, results and iaboratory <br />techniques. <br />EXAMPLES OF WORK: <br />• Performs bacteriological examinations of water samples, prepares cultures and <br />makes microscopic examinations; and reads and records resufts. <br />• lncubates and grows bacteria for coliform plate counts; counts coliform after <br />incubation; makes bacteriological examinations of wastewater or industrial waste <br />samples secured from the source or from within the system during the several <br />stages of treatment. <br />• Prepares, maintains, and sets up for specific operations of a wide variety of <br />laboratory equipment apparatus and supplies; cleans and sterilizes Iabaratory <br />equipment utensils and facilities. <br />• Documents, tabulates and prepares accurate reports on all tests performed as <br />directed by the Superintendent of the Water Pollution Control Department or the <br />Assistant Superintendent - Plant Operations. <br />• Maintains a supply of chemicafs in the laboratory; washes gfassware; cleans up, <br />calibrates and services laboratory equipment and apparatus periodicaliy when <br />required. <br />• Performs various routine tests, such as: titration, filtratian, or precipitation; makes <br />laboratary tests reports and furnishes test date. <br />70 <br />,?.?- "."W- <br />«a??r??sa?,?