1. Location of the company: Huizhou sewage permit basin is divided by geographical location. If the company is located near any river basin, it is necessary to choose the corresponding river basin to apply.
2. Location of discharge port: The drainage basin of discharge permit is divided by river or water system. If the company's discharge port is located near a river or water system, it should choose the corresponding drainage basin for application.
3. Types and emissions of pollutants: Different river basins have different regulatory standards and requirements for different types and emissions of pollutants, and the corresponding river basins should be selected according to the specific conditions of the company. For example, when a company discharges heavy metal pollutants, it needs to choose a river basin with relatively strict regulatory standards.
4. Supervision intensity of river basins: The supervision intensity of different river basins and the management strictness of environmental protection departments are different, so the river basins with relatively strict management intensity should be selected for application, so as to avoid the failure of audit due to non-compliance.