Enforcement Rules of Sewerage Act Article 8

Regarding the use of public or private land in the provisions of Article 16 of the Act, the sewerage institution shall inform the landowner, possessor or user via written notice. Such a notice may be amended after construction for critical situations.
中文原文 下水道法施行細則第8條
依本法第十六條規定臨時使用公、私有土地時,下水道機構應以書面通知土地所有人、占有人或使用人,如情況急迫,得先行施工,補行通知。

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