Water Supply Act Article 85

Where the main equipment of a water supply enterprise does not meet the established requirements, the authority-in-charge shall demand its repair or replacement in a given period, or order the discontinuation of its use if there is a hazard concern.
中文原文 自來水法第85條
自來水事業之主要設備有不合規定者,主管機關應限期令其修理或更換;如有發生危險之虞者,並應令其停止使用。

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