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JOB TITLE: <br />LABORATORY TECHNICIAN <br />Nature of Work: This is technical work performing a <br />considerable volume of standard <br />chemical and bacteriological tests in the laboratory of the <br />municipal wastewater treatment plant.' <br />Incumbents in this class conduct routine laboratory tests, <br />technical preparation of solutions and media as well as partic- <br />ipate in the specialized sampling, tests, and investigations of water <br />quality control or industrial wastewater pollution control. <br />Tests are performed according to well designed and standardized <br />procedures but require accurate and skilled application of <br />laboratory techniques as well as the competence to modify standard <br />tests and develop new procedures when necessary. Work is <br />performed under the general supervision of the Assistant <br />Superintendent-Plant Operations who provides specific instructions <br />or new or modified procedures and who inspects testing methods, <br />results and laboratory techniques. <br />Examples of Work: <br />Performs bacteriological examinations of water samples, prepares <br />cultures and makes microscopic exar.linations; and reads and <br />records results. <br />Incubates and grows bacteria for coliform plate counts; counts <br />coliform after incubation; makes bacteriological examinations <br />of wastewater or industrial waste samples secured from the source <br />or from within the system during the several stages of treatment. <br />Prepares, maintains, and sets up for specific operation a wide <br />variety of laboratory equipment apparatus and supplies; cleans <br />and sterilizes laboratory equipment utensils and facilities. <br />Documents, tabulates and prepares accurate reports on all tests <br />performed as directed by the Superintendent of the Water <br />Pollution Control Department or the Assistant Superintendent- <br />Plant Operations. <br />Maintains supply of chemicals in laboratory; washes glassware; <br />cleans up, calibrates, and services laboratory equipment and <br />apparatus periodically when required. <br />Performs various routine tests, such as titration, filtration, <br />or precipitation; makes laboratory tests reports and furnishes <br />test date. <br />Conducts investigations and sampling programs of industrial waste <br />problems and wastewater flows which are of interest to the <br />municipal water pollution control program as outlined by the <br />Superintendent. <br />Performs unusual or difficult tests by settingup, taking down, <br />EXHIBIT B-11 <br />. <br />-59- <br />,_..,...., : _m..„..,,.?,?..,?..?.,,...,.?,_?..;. _ ... _ .?.n....._.,.._ .a_ ..._.,,1m ., ,?..._...?..d _.,.,_