Water Pollution Control Measures and Test Reporting Management Regulations Article 63
In the event that sludge deposits clearly visible have been formed at the bottom of pipelines, the entry point of the water body, and its surrounding areas due to the discharge of wastewater or sewage by an enterprise or sewage system, the enterprise or sewage system shall remove the sludge deposits on its own initiative or within a limited period pursuant to the order of the competent authority.
中文原文 水污染防治措施及檢測申報管理辦法第63條
事業或污水下水道系統排放廢（污）水，於排放管線底部、進入水體處及其周圍環境，形成可見之沉積污泥時，應予以清除，或依主管機關之命令，於限期內清除。