Enforcement Rules for Water Act Article 15

The surplus depicted in Article 21 of the Act refers to unstable possible yield of surface water with flow exceedance probability of 85% or higher, based on hydrological testing.Based on hydrological testing conducted in accordance with Article 21 of the Act, the temporary water right is granted only when the water source has a surplus.Given that the yield constantly maintained by the water source is not sufficient to meet the demands of the applicant, the temporary water right will be granted only after the applicant changes the application.
中文原文 水利法施行細則第15條
本法第二十一條所稱尚有剩餘水量,指地面水依據水文測驗結果,水源水量大於流量超越機率百分之八十五之不穩定可能水量。
申請臨時使用權之水源,依本法第二十一條規定水文測驗結果,其水源尚有剩餘水量時,得核發臨時使用權。
申請水權之水源,其通常保持之水量不足以供給申請人事業所必需者,經申請人變更申請後,得依前項規定核發臨時使用權。

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