The groundwater crisis in Kediri Regency has increasingly felt its effects lately, especially in Sepawon Village, Plosoklaten Subdistrict, which is in the upper reaches of the Toyaning sub-watershed. Deforestation in water recharge areas results in reduced infiltration of rainwater and thus a reduction in groundwater reserves. The objectives of this study is: (1) to determine water recharge areas and water discharge areas in the Toyaning sub-watershed and (2) to analyze the reduced forest area. The variables used are porosity of rock, slope, rainfall intensity, geological conditions, land use/land cover, depth of ground water level and soil type. This study uses weighting - overlaying methods and classification of land use (iso-cluster unsupervised) using geographic information systems. The results showed that forest land conversion and deforestation had occurred, which was indicated as a cause of drought in the study area since 2017. The area of forest lost from 2013 to 2018 is 5,99 km². The government and the community together should be able to maintain the forest area in order to mitigate drought.