The three-month investigation includes four stages of mobilization and deployment, self-inspection and self-correction, provincial verification, and the development of rectification programs, focusing on the management of problematic bodies of water, sewage treatment, prevention and control of agricultural surface pollution, drinking water safety, flood control, flood control, water conservation, prevention and control of pollution in key bays, and implementation of rectification and rectification of water-related issues in nine areas of problems to carry out the investigation and rectification.