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Limboto Subdistrict, which is the capital of Gorontalo Regency, has fairly high population growth and is an area that is vulnerable to the effects of drought. This causes the availability of groundwater to decrease. This study aims to utilize the GIS application to determine the pattern of groundwater flow in the Limboto District. This groundwater flow pattern can be used as a reference for further research related to groundwater. The type of data in this study is the type of primary data. The method used in this research is a survey method, namely by measuring directly in the field. The data analysis technique used to determine the pattern of groundwater flow in Limboto Regency is utilizing software (GIS) using ArcGIS 10.7 software to obtain a map of groundwater flow patterns in Limboto District. The results of the spatial analysis of the groundwater flow pattern map in Limboto District show that water flows from the northern part of the study site to the southern part of the study site.

The availability of clean water in the Oebola village community has not yet been available due to several obstacles, such as the distance of the water source from the residential area has not yet received the service of a clean water distribution system network that makes it easier for the community to obtain clean water to meet their daily needs. This study aims to determine the pattern of clean water consumption, the potential of water sources, the rate of clean water usage in 2020-2030, and strategies to meet the needs of clean water. The research method used in this research is descriptive method. The results of the analysis show that the current use of clean water is 43 liters/person/day less than the standard 60 liters/person/day, there is an adjustment to the limited water use in daily use such as bathing and washing habits. The potential available water sources from the Oetulu spring with a minimum discharge of 1.27 liters/second is smaller than the demand in 2020, which is 2.89 liters/second and in 2030 it is 4.39 liters/second. The strategy to fulfill clean water needs in Oebola Luar village is to provide clean water distribution system network services that make it easier for the community to obtain clean water.