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No <br />irr <br />... <br />` JOB TITLE: LABORATORY TECHNICIAN <br />? <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 />? <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 />r. 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 />? <br />Performs bacteriological examinations of water samples, prepares <br /> cultures and makes microscopic exaninations; and reads and <br /> records results. <br />?• <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 /> <br /> Prepares, maintains, and sets up for specific operation a wide <br /> variety of laboratory equipment apparatus and supplies; cleans <br />r 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 />ON apparatus periodically when required. <br />a. <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 />.. <br />Performs unusual or difficult tests by settingup, taking down, <br />EXHIBIT B-11 <br />? -59-