Water Pollution Control Measures and Test Reporting Management Regulations Article 12

The entities engaging in recycling, dilution, Commissioned Treatment or designated by a competent authority shall, in an upstream position of the wastewater or sewage treatment facilities, install independent and exclusive cumulative inflow water measurement facilities.Where wastewater or sewage treatment/pre-treatment facilities are set up jointly for treatment of wastewater or sewage, it shall be transported through pipes or ditches.
中文原文 水污染防治措施及檢測申報管理辦法第12條
廢(污)水回收使用、稀釋、受託處理或經主管機關指定者,應於廢(污)水處理設施前,設置進流水獨立專用累計型水量計測設施。
共同設置廢(污)水(前)處理設施處理廢(污)水者,其廢(污)水之輸送方式,應以管線或溝渠為之。

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