Water Pollution Control Measures and Test Reporting Management Regulations Article 18

Where the wastewater or sewage treatment/pre-treatment facilities of an enterprise or sewage system break down for more than 24 hours, the wastewater or sewage that cannot be treated shall be stored appropriately and no discharge is allowed. Where it takes more than 30 days for repair, production of wastewater or sewage shall be suspended.The enterprise or sewage system shall record the failure time, name of the facilities, reason for the failure, volume of the produced wastewater or sewage and its collection status, repair method and progress; the record shall be retained as a reference for three years.
中文原文 水污染防治措施及檢測申報管理辦法第18條
事業或污水下水道系統廢(污)水(前)處理設施發生故障超過二十四小時,應將無法處理之廢(污)水,妥善貯存,不得排放;修復時間超過三十日者,應暫時停止產生廢(污)水。
事業或污水下水道系統應記錄前項故障時間、設施名稱、發生原因、廢(污)水產生量及其收集情形、修復方法及進度,並保存三年,以備查閱。

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