Leads and directs work teams; plans for construction projects; prepares budget proposals; prepares plans for future facility needs; implements improved operational and mechanical procedures; calculates alum chemical dosage in pounds/day; determines feed rates for all treatment chemicals; calculates and adjusts ozone feed rates; performs jar testing; oversees work performed by assigned operators and other workers; monitors water or wastewater pumping, monitors computer systems; monitors all plant processes; performs maintenance repair requirements on all plant equipment; Demonstrates knowledge and use of computerized maintenance management system (CMMS) and related documentation procedures. Senior Operator work activities include the coordination and direction of the following tasks: water and wastewater treatment process control, quality control, employee supervision, employee scheduling, employee development and evaluation, chemical procurement, spreadsheet development, record-keeping, report writing, general support, computer operation, training and safety, preventive and reactive maintenance, vehicle operation, hand and power tool operation, material handling and basic safety procedures.