This research aims to identify the prospects and challenges for implementing smart villages using a case study of Genteng Village in West Java, Indonesia, according to the sustainable development perspective and the enabler factors of socio-economic factors, village’s technology, and environmental aspects. This research uses a qualitative approach to assess the potencies and challenges from social, economic, environmental, and infrastructure perspectives. This research conducts a field survey with in-depth interviews and observation in Genteng Village, Sukasari Sub-district, Sumedang Regency, West Java Province to tap the information needed. Interviews with stakeholders were conducted with informants representing the rural stakeholders consisted of village official government, village local champion/leader, and farmer group representatives. Researcher involvement in nearly two years in regular visits and observations before this research has enriched and validated the information obtained. This research found prospective local social capital components and economic potencies to develop using the smart village framework. Environment and infrastructure are relatively still the challenges to be overcome towards the smart village. This research concludes that Genteng Village is on the right track, though early-stage to develop as a smart village. External factors, mainly information and communication technology, will be one of the main driving factors for optimism in implementing a smart village in Genteng Village.
Daerah Khusus Ibukota (DKI) Jakarta merupakan ibukota negara Indonesia yang terus berkembang pesat seiring dengan pertumbuhan industri, pemukiman penduduk, perdagangan, dan jasa yang juga semakin meningkat. Perkembangan daerah yang seiring dengan pertumbuhan penduduk mengakibatkan kebutuhan air bersih juga semakin meningkat. PDAM masih belum maksimal dalam memenuhi kebutuhan air masyarakat sehingga air tanah menjadi sumber air utama untuk kebutuhan harian dan komersil. Pemanfaatan air tanah yang tidak terkendali dapat mempengaruhi kondisi air tanah di Jakarta. Oleh karena itu, penelitian ini dilakukan untuk mengetahui kondisi air tanah di bagian utara CAT Jakarta berdasarkan hasil pengamatan lapangan dan analisis laboratorium melalui 27 (dua puluh tujuh) sumur terpilih. Aliran air tanah daerah penelitian mengarah dari selatan ke utara. Hasil analisis Diagram Piper menunjukkan fasies air tanah daerah penelitian terbagi menjadi empat fasies yaitu fasies Na-HCO3, Ca-HCO3, Na-Cl, dan mixed (Ca-Na-HCO3, Na-Ca-HCO3, Ca-Na-HCO3-Cl). Tingkat keasinan air tanah daerah penelitian terbagi menjadi dua zona yaitu tawar dan tawar-payau. Analisis rasio γNa/γCl, TDS terhadap elevasi MAT, DHL terhadap Cl, dan γCl/(γCO3+γHCO3) menghasilkan lima zona intrusi yang mengalami perubahan dari tahun 2015 – 2018 yaitu zona air tawar, zona intrusi air laut sedikit, zona intrusi air laut sedang, zona intrusi air laut agak tinggi, dan zona intrusi air laut tinggi. Kata kunci: Air tanah, Hidrogeokimia, Intrusi Air Laut, Cekungan Air Tanah Jakarta
A decrease in groundwater level, especially shallow groundwater, occurred in the residential areas, and Padjadjaran University of Jatinangor part of Manglayang slope, a volcanic region at West Java Indonesia. This is due to an imbalance between groundwater input and extraction. This research aims to compile data on physical characteristics of rock lithology containing groundwater, and identifying various layers of groundwater carriers. Groundwater samples were taken in the aquifer system at the study area of the Manglayang volcanic region, and analyses using the composition diagram method and chemical analysis were conducted. The old volcanic deposit was found based on geological mapping, hydrogeology, electrical sounding measure, and boring in the area at the distal and media regime. The tuff deposit with pale soil, young deposit product is dominant in the area where there are lava and lava dome that reached the peak. There are also three types of lava, which is basalt augite, basalt, and andesite. Springwater was found at the 650-800 mdpl elevation. It has the facies Ca, Mg HCO 3 (Calcium, Magnesium bicarbonate), and facies Mg HCO 3 (Magnesium bicarbonate). The area has a local groundwater flow system above the elevation of 900 MSL and an intermediate groundwater flow system below elevation 900 MSL. The study found water catchment area is located in two places, which are zone in the elevation 900 to 1100 m with local flow patterns and 1379 m to 1697 m system intermediate. From these results, a zoning map can be developed based on the distribution of rocks and the sequences of rock formation. The study can also be utilized to determine the conservation zones' location based on the forms of delivery from each layer of rock.
Shallow groundwater is the primary drinking water source for local communities surrounding Duri Field operations area. To ensure the local community has access to safe drinking water and to comply with Government of Indonesia (GOI) environmental safety regulations, PT. Chevron Pacific Indonesia (PT CPI) established a groundwater monitoring system to ensure that slurry waste injection into deep non-potable water aquifers does not contaminate nearby shallower drinking water aquifers. The prevention system also includes well integrity surveillance and monitoring as a leading indicator and water sampling and analysis as a lagging indicator. Duri Field is in the Rokan block, Riau Province of Indonesia. Oily sand and viscous fluids are byproducts from oil production and treatment processes. The Sand Management Facility (SMF) was developed to manage these solid and liquid wastes by injecting mixed waste slurry under high pressure into deep subsurface formations. The scope of this study included 12 injector wells with two groundwater monitoring wells surrounding each injection well. Stable isotope monitoring technology is used to ensure that deep waste injection slurry is not mixing with and contaminating shallow drinking water resources. Stable isotope (δ2H, δ18O) analysis was used to define the Local Meteoric Water Line (LMWL) of Rokan Watershed defined by equation δ2H = 7.6 δ18O + 10.5 (r2 = 0.921), which is applied as a reference point for isotope studies in SMF area. The stable isotope δ2H samples for groundwater in SMF ranged from −70.5 ‰ to −25.1 ‰ followed by formation and surface waters that respectively ranged from −64.8 ‰ to −48.9 ‰ and from −61.9 ‰ to −20.8 ‰, while δ18O samples ranged from −11.18 ‰ to −2.12 ‰. After four years of monitoring, δ2H and δ18O results indicate that the shallow groundwater samples are coincident with the reference meteoric water line, which implies these samples originate from rainwater. Surface water samples are consistent with water influenced by evaporation processes. Conversely, samples of produced waters exhibit a distinctly different isotope character compared to the shallow water samples. This suggests that there is no connection and mixing between surface and shallow aquifer with the deeper slurry injection zones. Stable isotope analysis has proven to be a successful groundwater monitoring technique and is an enabler for continued safe injection of slurry wastes into the deep subsurface. These efforts have been acknowledged by Kementrian Lingkungan Hidup dan Kehutanan (KLHK) of GOI experts as one of the most advance groundwater monitoring technologies currently in use in the Indonesian oil and gas industry.
Aspiring geopark of Krayan Highland (Kaltara) and Sangkulirang-Mangkalihat mountain range is a geoheritage located in Northeast Kalimantan. The diversity of its nongeological aspects is located at the forests with High Conservation Value. Based on its intrinsic value, geosite is grouped within geological hotspots into diverse value areas (geoarea), by compiling them into data of geodiversity, biodiversity, and culturediversity. This inventory establishes 16 geosite types that are possible in 10 geological frameworks: anthropogeny, sedimentology, paleontology, mineralogy, stratigraphy, igneous rocks, metamorphic rocks, structural geology, neotectonics, geomorphology, hydrology and hydrogeology, geochemistry, geothermal, economics, paleogeography, and geohistory. Some sites are worth extraordinary and amazing Sites of Special Scientific Interest (SSSIs) and Regionally Important Geological and Geomorphological Sites (RIGS). Several geoheritage sites hold valuable evidence of Cenozoic magmatism and obduction, atoll and modern carbonate landscape, as well as distinctive hydrological features. Scientific meaning is close to the true value of the potential aspect. Its' geological and landscape structures affect cultural tradition and biodiversity, forcing them to adapt. The geoheritage sites of Kaltara and Sangkulirang-Mangkalihat are popular in local, regional and national as well as global tourism spot.
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