This course is intended for Intermediate level operators working at activated sludge wastewater treatment plants of all sizes and types. Operational parameters and design standards normally used for process control and troubleshooting will be discussed, along with how they are used to evaluate and monitor treatment units and processes. Participants will be given worksheets for calculating PPD loadings, F/M sludge age, and MCRT along with several process control examples to complete in class. During the last part of the class, participants will be divided into teams to complete at least two process control assignments using the tools and skills taught earlier in the class. Nutrient removal will be discussed, but the focus will be on utilizing operational parameters and design standards for process control. The course will cover flow-through and batch processing activated sludge treatment processes. Participants are encouraged to discuss actual plant problems or know case studies. Each participant should bring a calculator to this class.