Water Act Article 53

When a water work has a potential to be developed for multiple purposes, its proprietor may negotiate with people or entities involved to participate in the development project and share costs and expenses based on economic appraisal. If necessary, the proprietor may request assistance and guidance from the authority-in-charge.Where the aforementioned multi-purpose water work or several water works are to be jointly used by different entities, the intended users should elect a general representative for water right registration to facilitate the unified management of water resources. Where the water work concerned is initiated by the authority-in-charge, the agency managing the water work shall be the general representative for the purpose of water right registration.
中文原文 水利法第53條
興辦水利事業,具有多目標開發之價值者,得商請其他目標有關之人民或團體參加開發,並根據經濟評價分擔其費用;必要時,並得報請主管機關予以協助輔導。
前項多目標開發之水利事業或數水利事業有聯合運用必要時,為統籌管理運用水資源,得由各該標的用水人,推舉總代表人,辦理水權總登記。
其由主管機關興辦者,以該水利事業之管理機關為水權登記總代表人。

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