The Wastewater Plant Operator 1 performs full performance level for the wastewater plant operator line of work; completes tasks in wastewater treatment plant operations, monitoring, maintenance, and/or repair of pumps, motors, treatment systems, generators, and related support systems; performs collection, analysis, reporting, and processing of a variety of samples; performs work independently and takes initiative to ensure sound plant operations; seeks guidance and direction on unusual or difficult assignments or problems; assists in training, education, and providing guidance to less experienced workers. The Wastewater Plant Operator Trainee performs entry trainee level for wastewater plant operator line of work; receives training, education, and experience in wastewater treatment plant operations, monitoring, maintenance, and/or repair of pumps, motors, treatment systems, generators, and related support systems; performs collection, analysis, reporting, and processing of a variety of samples; performs routine work and obtains on the job training and guidance from more experienced staff when completing non-routine tasks and functions.