Run off is one of the most important hydrological variables in supporting water resources development planning and activities. To predict the amount of runoff can be done in various ways one of them with the SCS-CN method. The SCS method was developed from years of rainfall observation and involved many agricultural areas in the United States. This method seeks to link watershed characteristics such as soil, vegetation, and land use with a runoff curve number which indicates the potential runoff water for a particular rainfall. The location of this research is Garut Regency, upstream of the Cimanuk river, which often floods every year due to overflowing of the Cimanuk River. Data used to determine CN values and runoff height are Digital Elevation Model (DEM), land use, soil, and rainfall data for the last 10 years, from 2009 to 2018, then the maps are processed using the Arc-Map program. From the analysis it can be seen that the CN value is 66.54%, and the runoff height is 1.17 cm with a 2 year return period, and 2.84 cm at 25 return period. Based on the CN value, it is known that the type of soil in the upstream Cimanuk watershed has a small infiltration rate and has bad properties in infiltrating water, so that it can cause run off for a long time, because the smaller CN value on a land use, so soil’s retention ability is greater and the less chance of runoff. The results of this study can be used for planning flood control buildings in the upper Cimanuk watershed.
Global climate change is a worldwide issue affecting rain and groundwater supplies. To realize the SDGs’ 6th goal regarding clean water and proper sanitation, Rainwater Harvesting (RWH) is one solution for pure water requirements and useless groundwater. RWH, which is equipped with infiltration wells, can overcome water scarcity during the dry season and reduce flooding in the rainy season. This research was conducted to harvest rainwater that falls on the roof into the reservoir to the ground, so it is necessary to calculate the rainwater availability and water demand to design RWH building plan. This research was conducted at the Faculty of Engineering, Pancasila University, which uses groundwater for essential water requirements. Two RWH reservoirs are planned in different locations, with the dimensions of the RWH reservoir are 4 m (length) x 3.5 m (width) x 3 m (height). Based on the flood discharge from the roof of 84 m3, the amount of water needed is 19.4 m3. For that, it is necessary to be equipped with 4 infiltration wells with a diameter of about 1.5 m and a height of 3 m to store groundwater around 6.402 m3. RWH application can also be applied to campus that use groundwater to reduce groundwater use.
River restoration is an activity to restore the river's condition to its original state. River restoration is one of the SDGs targets, namely target 6.6, Aquatic Ecosystems.The target of 6.6 SDGs is to conserve and restore water-related ecosystems such as mountains, forests, wetland vegetation, rivers, reservoirs and lakes. These SDGs targets will be successful with the participation of the surrounding community. In order to pursue this target, the Civil Engineering Study Program, Pancasila University has organized a community service program related to river restoration activities, in the Cimanuk-Cisanggarung river area, Cirebon. Community service activities are carried out by providing counseling about the importance of river restoration programs to high school teachers and assessing school readiness to form a water quality monitoring school partnership. To assess the understanding of river restoration and the readiness to establish partnership, a questionnaire was given. Based on the questionnaire analysis, it can be concluded that most of the participants (76%) stated that the river restoration program was important, and would be ready to partner with other schools (24%). This shows that program respondents are ready to form partnerships to support river restoration programs.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.