Water Pollution Control Act Article 16
The competent authority shall issue an official announcement for the cancellation of those discharge pipes of unknown source that are used for the discharge of industrial wastewater or sewage; for those circumstances in which no one has made a claim one week after the official announcement, the competent authority may seal or remove said discharge pipelines.
中文原文 水污染防治法第16條
事業廢（污）水利用不明排放管排放者，由主管機關公告廢止，經公告一週尚無人認領者，得予以封閉或排除該排放管線。