This is skilled technical work in the operation and maintenance of a water or wastewater treatment plant. Work involves responsibility for operating, monitoring, sampling, and control of a water or wastewater treatment plant and associated equipment on an assigned shift. Work includes responsibility for adjusting treatment processes to ensure conformance with applicable water quality standards, participating in the maintenance of equipment and facilities, and preparing operating records and reports. Employees of this class may be required to work rotating or nonstandard shifts. Work is performed independently in accordance with established routines and practices and under general supervision of the Plant Superintendent. Work is evaluated for adherence to O.E.P.A. standards and correct responses to situations requiring changes in treatment procedures, and through observation, inspection of facilities, and review of daily reports.Any one position may not include all of the specific duties listed, nor do the examples cover all the duties that may be performed.