Enforcement Rules for Water Act Article 49

The “land likely to be flooded” depicted in Article 69-1 of the Act refers to water storage area reached by the maximum flood level designed for the reservoir and by its backwater, the land on which important facilities of the reservoir are built, and the protection belt of reservoir.
中文原文 水利法施行細則第49條
本法第六十九條之一所稱可能被淹沒之土地,指水庫設計最高洪水位與其迴水所及蓄水域、水庫相關重要設施之土地與水面及必要之保護帶。

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