Water Supply Act Article 42

The central and the municipal authority-in-charge shall stipulate the engineering standards for the facilities of the water supply enterprises, separately.The engineering standards for hydraulic structures relating to water rights and water sources that require approval from the water authority pursuant to the Water Act shall be approved by the water authority.
中文原文 自來水法第42條
自來水事業之工程設施標準,分別由中央及直轄市主管機關訂定之。
依水利法之規定,須向水利主管機關申請核准之有關水權、水源之水利建造物,其工程設施標準,由水利主管機關核定之。

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