<![CDATA[Water in the Leuwipeundeuy Dam is utilized as irrigation water, to manage efficient water requires consistent rainfall data for the calculation of reliable discharge. This study aims to determine the amount of mainstay discharge that will be used as the basis for calculating water availability. The method used to test the validity of rainfall data is the Double Mass Curve, the calculation of water availability uses the FJ. Mock method and the probability of reliable discharge with the Weibull equation. The results of the validity test state that the rainfall data is shown with a relatively linear double mass curve, so that rain data can be applied as a material for the mainstay discharge analysis. The results of the Q80% mainstay discharge analysis in 2014 amounted to 1.086 m3 / sec, in 2015 it was 0.264 m3 / sec, in 2016 it was 1.538 m3 / sec, in 2017 it was 0.754 m3 / sec, in 2018 it was 0.310 m3 / sec, in 2019 it was 0.198 m3 / sec, in 2020 it was 0.874 m3 / sec, in 2021 it was 0.766 m3 / sec, in 2022 it was 0.860 m3 / sec, and in 2023 it was 0.234 m3 / sec. The value of water discharge with 80% reliability is utilized for irrigation purposes at Leuwipeundeuy Dam. Translated with DeepL.com (free version)]]>
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