Enforcement Rules for Water Supply Act Article 16

The competent authority may commission another agency or private organization to carry out the work of water quality, water quantity or equipment inspection as provided in the first paragraph, Article 86 of the Act.
中文原文 自來水法施行細則第16條
主管機關依本法第八十六條第一項規定辦理自來水事業之水質、水量或器材之檢查,得委託其他機關或民間團體辦理。

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