This project management assignment involves the refurbishment of three tanks with different filling times. The project is to be implemented in four stages: analyzing resource requirements and planning, starting work in tank 1 first, followed by tank 2 and tank 3; fixing leakage and cleaning works; repainting all tanks considering their filling time; and resource release and project completion. The success of the project will be measured based on criteria such as no change in project scope, successful reduction of environmental impact, thorough inspection of work performed, and sufficient project schedule. References to relevant project management theories and concepts are included.