Water Pollution Control Measures and Test Reporting Management Regulations Article 14

Enterprises or sewage systems shall take measures to reduce the sludge produced from the wastewater or sewage treatment/pre-treatment facilities.Wastewater or sewage treatment/pre-treatment facilities shall be maintained regularly and repaired in time. Records shall be made and retained as a reference for five years.
中文原文 水污染防治措施及檢測申報管理辦法第14條
事業或污水下水道系統之廢(污)水(前)處理設施產生之污泥,應採行減量措施。
廢(污)水(前)處理設施,應定期實施保養及適時維修,並作成紀錄,保存五年,以備查閱。

English translation for reference only; the Chinese text prevails. Not legal advice.