Infiltration Wells Research Articles

Perencanaan Sumur Resapan Air Hujan dalam Upaya Konservasi Daerah Pesisir

Infiltration wells are engineered construction designed for water conservation to accomodate and absorb surface water. Water conservation in necessary to reduce seawater intrusion in coastal areas. Shallow groundwater in Pohe village, located in a coastal a rea, is affected by seawater intrusion. This research aiams to converse groundwater in the coastal area and to reduce rainwater runoff that flows into drainage channels as well as to reduce seawater intrusion. The research is conducted in a coastal area in Pohe Village that is directly adjacent to Tomini Bay. The data are in the form of infiltration rate and soil permeability as the primary data and in form of rainfall in tensity betweet 2019 and 2020 as the secondary data. Infiltration rate data are obtained by useing a Double Ring Infiltrometer and are analyzed using the Horton method. Fourthermore, soil permeability data are tested using the constant head test. Analysis of rainfall intensity uses the Mononobe method, whereas discharge analysis employs th Rational method. The dimension of infiltration wells uses Sunjoto 1988 method.Findings reveal that the infiltration rate (ft) at the research site is 3.89 cm/hour or 38,90 mm/hour which is classified as moderate criteria. The coefficient of soil permeability (k) is 0.07 cm/second. Rain intensity (I) obtains 38.94 mm/hour. According to the data, the area of Pohe Village (A) is 4.83 km2 and the flow coefficient (C) is 0.21. The discharge analysis (Q) is 10.86 m3/second. The dimension of the infiltration wells is planned to use a cylindrical shape with a diameter of (D) 1 m and a depth of (H) 58.90 m. The are 31 wells with a depth of 1.90 m.

Evaluation of Drainage System of Light Rapid Transport (LRT) Depo – Kelapa Gading – Jakarta City

LRT Depo is a vital infrastructure in the operation of Jakarta’s LRT system. The LRT Depo is located in the Kelapa Gading area. Kelapa Gading is an inundation-prone area in Jakarta. Hence a drainage system should be prepared to manage surface runoff in the area to avoid additional runoff to the surrounding drainage system. In order to reduce runoff in Jakarta Special Province, the Governor of Jakarta has imposed a regulation on surface runoff management for every developed area. The runoff control measures, promoted in the regulation to be applied, are in the form of infiltration wells and storage ponds. The principle of reducing peak discharge by a possible storage system for LRT Depo was designed and applied to comply with regional regulations on rainwater control. The drainage system, initially based on the regulations, was also modeled in the Storm Water Management Modelling software (SWMM). This study evaluated the drainage system by elaborating the reduction of the peak discharge based on the simulation. A reduction of peak discharge was observed in the modeling results. The proposed runoff control at LRT Depo Kelapa Gading is a proper design of infrastructure development for a flood prone area.

Perencanaan Drainase di Dusun 1 Penfui Timur

Drainage functions as a series of waterworks that function to reduce or remove excess water from an area or land, so that the land can function optimally. Hamlet 1 is one of the hamlets in East Penfui Village, with an area of 49.47 ha. This hamlet is quite busy with students living because it is located between 2 major campuses in Kupang, namely Nusa Cendana University and Widya Mandira Catholic University Kupang. This hamlet has not been equipped with adequate drainage channels so that during the rainy season there are floods and result in standing water at several points which is quite disturbing to road users and the surrounding community. Therefore, it is necessary to know the magnitude of the planned discharge so that it can determine the dimensions of the channel to overcome the problem of inundation that occurs. From the results of planning the drainage system is divided into 2 primary canals with the notation SP1 and SP2, the P1 channel is 2300 m long and the P2 channel is 600 m long. Calculating the intensity of rainfall using the mononobe formula, with a concentration time of 3.16 hours, the rainfall intensity for the 5 year return period is 30.74 mm. By using the rational method, it is obtained that the planned debit is 2.67 m3/s, in the planning of the drainage system there must be different channel dimensions based on the water discharge flowing through the channel itself. With a planned flood discharge of 24.75 m3/s, the smallest canal has a width dimension of 0.4 m and a height of 0.8 m on the secondary channel while the largest is 0.6 m wide and 1.2 m high on the primary canal, and Infiltration wells have a diameter of 2 m with a depth of. Provided that Q plan < channel discharge. Drainage planning uses a square-shaped channel with precast concrete materials, namely U-ditch channels and calvert box culverts.

ALTERNATIF PENGENDALIAN LIMPASAN PERMUKAAN DI PERKOTAAN DENGAN MENGGUNAKAN METODE ANALYTICAL HIERARCHY PROCESS (AHP)

Control of surface runoff is a major challenge in sustainable urban stormwater management. High rainfall can cause various problems such as floods and landslides. Related to the problem of surface runoff includes a number of problems that require attention and good solutions to maintain environmental sustainability and prevent negative impacts from surface runoff. Surface runoff control activities generally tend to be social, technically costly, and relatively long. Collaboration with experts, government, and local stakeholders can also reinforce the concept of successful surface runoff control. The application of the AHP (Analytical Hierarchy Process) method is needed as a systematic approach to evaluate and select effective alternative surface runoff control systems, in this study four alternatives were taken based on three criteria. These alternatives involve solutions such as the application of biopores of infiltration wells, rainwater harvesting, retention ponds and green open spaces then these alternatives are evaluated based on relevant criteria, in this study the relevant criteria are taken namely technically, environmentally and cost. The results of this analysis using the AHP method provide relative priority values for each alternative, allowing for the selection of optimal solutions to surface runoff problems. Based on this assessment, it shows that alternative green open space is an optimal solution for surface runoff control systems in urban areas.

Study of Alternative Inundation Management Based on Water Conservation in Sub Drainage System of Parung River, Kediri City

Parung River drainage sub system is located in Kediri City. At the peak of the rainy season inundation often occurs on hos cokroaminoto road, kilisuci road and terusan kaliombo road, the cause is reduced water catchment areas and drainage capacity can’t accommodate discharge, so it is necessary to handle water conservation-based inundation. The analysis conducted was modelling the sub-system using the Storm Water Management Model (SWMM) version 5.1 with a 5-year return period. Rainfall calculation used 10 years of daily rain data (2012-2021) from 3 rain stations (Mrican, UPT Kediri, and Pesantren). The 5-year return period results is 129.4 mm/day, then the intensity of rain is calculated using the Mononobe formula. To calibrate the model, comparing observation discharge with simulated discharge of SWMM resulted the Nash-Sutcliffe efficiency number is 0.62 and the correlation R is 0.91. The results of the existing simulation show that Parung River drainage sub-system was not able to accommodate the 5-year return period discharge, impacting 27 overflow points. Water conservation based handling with the application of infiltration wells and rainwater harvesting can reduce discharge on land ranging from 51.58% to 90.91%, while in the channel successfully reduces discharge from 1.73% to 90.40%.

DRAINAGE SYSTEM EVALUATION OF BANK INDONESIA HOUSING PANCORAN, JAKARTA

The Bank Indonesia housing complex located in Pancoran, South Jakarta has a lower topography than the surrounding area and due to the continued reduction in green open space, this can cause inundation as high as 10 cm – 60 cm which occurs on Jl.Rasamala Raya which is a main road. main access to the Bank Indonesia Complex. To overcome the problem of inundation, it is necessary to analyze the drainage system to determine the causes of inundation. Research requires data in the form of drainage systems, rainfall, existing canal dimensions and existing longitudinal storage capacity. Based on the calculation results, there are 7 channels that do not accommodate the planned 2-year flood discharge, namely 4 channels in the Bank Indonesia Complex area and 3 channels outside the Bank Indonesia Complex area, so 2 alternatives are implemented to overcome these problems, the first is to changes in channel dimensions and the second is the implementation of ecodrainage in the form of infiltration wells in the canal located in the Bank Indonesia complex. From the research results it is known that alternative 1 causes the total volume of water entering the long storage is increase from 3011 m3 in the existing conditions to 3030 m3. If implementing alternative 2, the inundation in the channel on Jl.Rasamala Raya can be overcome and the total volume of water entering the long storage has decreased from 3011 m3 in the existing conditions to 2940 m3

DAMPAK EKSPLOITASI AIR TANAH SECARA BERLEBIHAN TERHADAP PEMENUHAN KEBUTUHAN AIR PENDUDUK DI DESA RAENYALE, KECAMATAN SABU BARAT KABUPATEN SABU RAIJUA

This study aims to determine (1) the impact of excessive exploitation of groundwater on the fulfillment of groundwater for residents in Raenyale Village (2) Strategies for overcoming the impact of excessive exploitation of groundwater on meeting the water needs of residents in Raenyale Village.The method used in this study is a quantitative descriptive research method to test hypotheses using statistical data tests. In this study there were 103 people who became the research sample consisting of people who used drilled wells, people who used dug wells and the head of Raenyale Village. Data collection methods used are questionnaires, interviews, observation and documentation. The results showed that (1). The impact of groundwater exploitation in Raenyale Village is that there are 17 dug wells which are experiencing drought due to excessive use of drilled wells which means that the community is forced to incur additional expenses by buying tanked water to meet the population's water needs. (2). The strategy for overcoming the impact of groundwater exploitation is that there are 13 people who make infiltration wells, plant trees around the well area and with community awareness and understanding of the importance of sustainable development and use of groundwater.

Analisis Kebijakan Pemerintah Kabupaten Ponorogo Tentang Program Kegiatan Rukun Tetangga

Ponorogo Regency launched an assistance program for community strengthening in the smallest scope, namely the Rukun Tetangga (RT). ratified through Circular Letter (SE) of the Regent. The Ponorogo Regency Government provides funds of IDR 10,000,000 annually to each Neighborhood Association in the entire Ponorogo Regency Region which consists of 6,869 the Rukun Tetangga (RT). The programs include: making infiltration wells or what is called Biopori Infiltration, Waste Management in the RT scope, provision of RT Wireless Fidelity (Wifi) networks, Strengthening Women's Economy, Employment BPJS benefits and incentives for RT administrators, Family Medicine Planting and Resident; Rembug Warga. This study aims to find out how the program is implemented and what are the obstacles. This type of research uses a descriptive method with a qualitative approach. The results of this study show that this RT activity program is an initiation from the Regent of Ponorogo which has been stated in the vision and mission. All RT activity programs have been implemented, but there are several programs that are not appropriate because they are not in accordance with regional conditions, such as: Biopore Infiltration, Integrated Waste, and planting family medicine. programs that are not suitable because they do not involve the RT community who know their needs better.

The potential of infiltration wells to reduce runoff in apartment and hotel buildings in Semarang City

Besides being used as groundwater recharge, infiltration wells function as runoff controllers. This study aims to analyze the runoff of apartment and hotel buildings in Semarang City. The method used to calculate rain intensity is the Mononobe method. The value of the flow coefficient is calculated using the Hassing method, while the standard used to calculate infiltration wells is SNI 03-2453-2002 concerning infiltration wells. Based on groundwater depth and soil permeability, seven apartment and hotel buildings are not suitable for implementing infiltration wells, namely: H2, H3, H4, H5, H6, H8, and H10. The remaining three buildings are feasible, namely: H1, H7, and H9. Runoff discharges in apartment and hotel buildings in Semarang City that are eligible to use infiltration wells are H1 at 0.13 m3/sec, H7 at 0.18 m3/sec, and H9 at 0.10 m3/sec. While the discharge of water that seeps through the infiltration wells with a minimum permeability of 0.168 m/hour is 1.71 m3/hour and the value of the discharge of water that seeps through the infiltration wells with a maximum permeability of 5.083 m/hour is 51.89 m3/hour.

Optimising Flood Risk Reduction in Bali's Provincial Government Center through Cultural Philosophy Approach and GIS-based Conservation of Infiltration Wells

Bali's administrative center, Renon Village, faces an increased risk of flooding due to land cover change. Conservation is needed to reduce this risk by improving water infiltration capacity. Infiltration wells are a solution to increase infiltration capacity. The Tri Hita Karana concept approach, especially Palemahan, in Balinese culture is adopted to implement infiltration well conservation with the support of GIS technology and by flood regulations and infiltration wells. The analysis showed that with a land area of 100 m2, the dimensions of the infiltration well were obtained in diameter of 1 m, and a depth of 2 m with a total of 2 pieces could absorb 2.46 m3 of rainwater. The application of infiltration wells in the study area can reduce the discharge and volume of flood peaks of 2 years, 5 years, 10 years, 25 years, 50 years, 100 years, and 200-year flood peaks, effectively reducing from 8.61% to 31.24%. This research supports the planning of sustainable drainage with a Low Impact Development approach. In addition, the construction of infiltration wells also contributes to preserving water conservation and applying green buildings that are environmentally friendly and energy efficient.

RECHARGE WELLS MODEL BASED ON SHAPE FACTORS FOR FLOOD MANAGEMENT IN KLOJEN DISTRICT, MALANG CITY

Urban flood areas hit various regions in Indonesia, such as what happened in Malang City. Flooding occurred in several areas of Klojen District, including Wilis Street, LetJen Suprapto Street in Samaan Village, Bareng Raya Street II in Bareng Village, Retawu Street, and Pulosari Street. This research uses a recharge well model based on shape factors to discuss flood mitigation. Data analysis includes existing floods, conditions of the study area, and an applied model adjusted to soil permeability in the research area. They were mapping the area (A) and coefficient C using ArcGIS 10.8 2023 software. The model applied is an infiltration well design constructed from a concrete buis at the top and soil pores at the bottom. The design rainfall calculation results are 592.112 mm/day. The results of the analysis show that there are a total of 30 channels from Samaan Village, Bareng Village, and Gading Kasri Village, whose channel capacity is unable, causing flooding. The geometric factor value of 3.14 m has a planned water inflow discharge of 1.7626 m3/second. Klojen sub-district requires 66 recharge wells to overcome the flooding. The application for constructing infiltration wells was carried out only in the Gading Kasri sub-district area, namely 11 infiltration wells. The infiltration well is planned to use a concrete buis with dimensions of 50x100 m, height L as deep as 2 m, bottom of porus in 1 m, and total depth of channel H is 3 m. Keywords: Recharge Wells; Shape Factors; Flood Management; Klojen Sub District.

Brand Image of Ngilo-ilo Slahung Ponorogo Village as a Village of Reyog Hardware Craftsmen

This research is research that studies Public Relations (PR) in communication science. Brand Image is part of PR science which contains the steps and methods for creating branding, of course adapted to the object. The object this time is Ngilo-Ilo Village which is located in Slahung sub-district, Ponorogo Regency. Using the Branding Image Theory proposed by Satori and Komariah which states the stages by means of SWOT analysis and also mapping village potential. The results obtained are that Ngilo-Ilo Village has carried out SWOT efforts and village mapping has also been carried out, but there are still obstacles. Some of the obstacles were found in terms of natural resources, irrigation conditions which were still quite difficult and also weaknesses, namely related to the village Reyog event, which was felt to be lacking. The solution is to create deep infiltration wells which are useful for irrigating rice fields and also for the clean water needs of local residents. Then, regarding village Reyog events which are felt to be lacking, the suggestion is to be more active in carrying out more village event activities by collaborating with local Reyog artists to develop Reyog art even more optimally by prioritizing Reyog crafts from Ngilo-Ilo village

Pengaruh Sistem Drainase Berwawasan Lingkungan terhadap Debit Limpasan pada Daerah Penyangga Kota Mataram

Mataram as the capital of West Nusa Tenggara Province has attracted people to live in it. The small city of Mataram makes the surrounding area a buffer area for rapid development. This condition can be seen from the increase in housing around Mataram City. This increase in housing area causes a reduction in water catchment areas. So during the rainy season there is an increase in runoff. The aim of the research is to determine the effect of an environmentally friendly drainage system on the amount of runoff discharge. The data required is land use data, rainfall, location maps and soil data. Rainfall data is used for Intensity Duration Frequency (IDF) analysis. IDF curves and land use data are used for runoff discharge analysis. Soil data is used to determine permeability which is used to determine of the discharge of infiltration well. Next, analyze the effectiveness of infiltration wells as an environmentally friendly drainage system. The results of the research show that there has been an increase in residential area over the last 10 years by 58% in Labuapi District, the southern part of Mataram City, 25% in Lingsar District and 29% in Gunungsari District, which is in the northern part of Mataram City. Changes in land use resulted in an increase in runoff discharge of 21% in Labuapi District, 8% in Lingsar District and 15% in Gunungsari District. An infiltration well with a diameter of 1 m and a depth of 1 m can absorb 1.13 m3 of water in the southern part and 1.21 m3 in the northern part of Mataram City. If every 100 m2 of residential area there is one infiltration well, then the effectiveness of the infiltration well in reducing flood runoff is 17.71% in Labuapi District, 15.61% in Lingsar District and 23.35% in Gunungsari District.

Rainwater Storage Engineering based on Water-Sensitive Urban Design in Lapangan Pancasila, Semarang City

Lapangan Pancasila is a public open space that located in Jln. Seroja Dalam III no. 9 Semarang City. Flooding is often occurs at Lapangan Pancasila in rainy season. Floods in Semarang City are caused by the occurrence of land subsidence and water catchment area decreases. Rainwater harvesting system with water sensitive urban design(WSUD) basic, is one of plenty solution that can be applied to reduces flooding at Lapangan Pancasila. The research was conducted using a descriptive methodology which refers to the spatial and ecological approach. A spatial approach is used to determine the physical condition of the site, while an ecological approach is used to determine the components required for engineering rainwater storage. Based on the calculations that have been carried out, the discharge from the calculation of the planned rainfall is 0.003886 m3/s. Rainwater collection engineering at Lapangan Pancasila was built as a complex system that combines various components of rainwater treatment such as rainwater catchment areas, macro water filtration tanks, sand filter tanks to filter mud and purify water, clean water reservoirs, sprinkle landscape irrigation systems, and infiltration wells.

INFILTRATION WELLS ECO-DRAINAGE PLANNING AS A FLOOD PREVENTION EFFORT IN BINANGUN SUB-DISTRICT, BLITAR REGENCY

The existence of land use change and loss of water catchment areas causes environmental ecosystems to be disrupted. Previously, green land has changed its function to become a development area which causes an increase in the volume of surface water when it rains because the water is not reabsorbed by the soil. In October 2022, there was a flood in the Binangun sub-district which was caused by the overflow of the drainage canals and rivers due to the large volume of surface water that entered. As an effort to deal with the flooding problem that occurs, planning infiltration wells is an effective solution to reduce the volume of surface water in the Binangun sub-district. Infiltration well planning was carried out with hydrological analysis and design discharge with a rational calculation method. From the analysis, it was found that the planned debit value was 284.61m3/s. The soil permeability value was obtained from the Falling Head soil sample test. The permeability test results of the falling head method obtained soil permeability values ​​in 3 regions namely, North = 0.003094m/s, Middle = 0.002827m/s, South = 0.001525m/s. The planning results showed that the dimensions of the infiltration wells for the Southern region are R=0.5m, L=1.5m, and H=6m with the assumption that the number of design wells is 333 which can reduce the planned discharge in the Binangun sub-district area by 35%. Keywords: Infiltration Wells; Floods; Drainage Planning.

Introducing an Innovative Design Approach for Drainage Systems: Facilitating Shallow Aquifer Recharge and Mitigating Flooding

Maringá, in southern Brazil, is undergoing a crisis with the alternation of dry and wet periods and floods caused by heavy rainfall along with the lack of infiltration of the stormwater. Due to a combination of these two opposite factors, the central lake of Ingá Park, which is an important urban park of the city, is suffering from water level reduction. This paper aims to verify if a sustainable drainage system design with infiltration wells can help recharge the surface aquifer. To this end, a stormwater drainage system simulation was conducted using SewerGEMS. Additionally, a calibrated shallow aquifer computational model was run in Visual Modflow Flex considering recharge wells to verify whether rainfall events impact the water levels of the surface aquifer. The results show that the sustainable intervention in a drainage system to increase stormwater infiltration has the potential to effectively recharge the shallow aquifers, while helping, at the same time, the drainage system, which is operating beyond design capacity, and the Ingá Park Lake. Thus, this study demonstrates that the sustainable design of drainage systems can help restore the springs inside the urban park. However, it is important to continuously monitor the wells’ heads and the hydrological variables. Also, for future studies, new models and simulations must be undertaken using the continuous monitoring data already available.

Digitalisasi Manajemen Bank Sampah Terpadu di Banjar Tegeh Sari, Kelurahan Tonja

Banjar Tegeh Sari, Tonja Village, North Denpasar District, is one of the banjars or groups of residents who have sufficient social capital in waste management. Banjar Tegeh Sari has several activity units directly and indirectly related to waste management, such as waste bank groups, empowered gardens (including bio pore and infiltration wells), and cooperatives. The main problem in waste management at Banjar Tegeh Sari is the need for digitalization and integrated management between the five waste bank groups in Banjar Tegeh Sari and the Manik Galih Cooperative. The aim of integrating and digitizing waste banks is to combine the five groups of waste banks so that recording the amount of non-organic waste becomes more valid and practical while recording the nominal amount of waste in cooperatives. The solution provided is a conceptual model for designing and digitizing waste banks in an integrated manner with cooperatives which will later be called the Tegeh Sari Integrated Waste Management System (SiMaSaDu Tegeh Sari). The target is to integrate and digitize the five waste bank groups into the waste bank management cooperative to make it more efficient and effective.

Assistance for Construction of Rainwater Infiltration Wells through Rain Water Harvesting in Overcoming Flood Prone in Beji Village, Depok City

Beji Village is one of the villages in Beji District, Depok City. Currently, Beji Village is quite dense with residents. Most of the land is used as housing for residents, so it has an impact on depleting the availability of vacant land as water catchment areas. This causes the area to become prone to flooding. This service aims to assist the people of Beji, Depok, build rainwater infiltration wells through Rain Water Harvesting to overcome flood proneness. Participatory Rural Appraisal (PRA) is used in this assistance by inviting the community to participate in Extension and Education, Training and Guidance, Field Assistance, Community Involvement, Research and Monitoring, and Partnership Development. This service resulted in rainwater harvesting, which has absorption two times faster than before. It can be illustrated that rainwater will usually recede within half an hour at the service location. With this infiltration well, incoming rainwater can recede within 10-15 minutes for a field area of approximately 80 m2. With this infiltration well, rainwater that usually recedes within half an hour can recede within 10-15 minutes for a field area of 80 m2. This shows the success of community service in reducing the risk of flooding in Beji Village and providing effective solutions to address the problem of water availability and water management in the area.

PERENCANAAN SUMUR RESAPAN PADA GAMPONG LAMTEH BANDA ACEH

Changes in land use cause to reduced water absorption. Aceh Province is one of the areas that does not yet have technical regulations that have been implemented in terms of increasing water infiltration. This is one of the causes of not optimal flood handling. In urban areas, for example in the capital of Aceh Province, namely Banda Aceh, floods still occur frequently when there is high rainfall intensity and long duration of rain. One of the villages that experienced inundation was Gampong Lamteh, Ulee Kareng District, Banda Aceh. One solution to this problem is the construction of environmentally sound drainage in the form of infiltration wells. The existing drainage channels in Gampong Lamteh Banda Aceh are currently only located at a few points to drain excess water into water bodies while the rest are still ground canals. The cause of inundation is due to the unavailability of rainwater infiltration sites. After planning, the infiltration discharge value obtained by the infiltration wells is 0.000006594 m3/second and the total storage volume is 70,650 m3 and the design of the infiltration wells is planned in the form of a circle with a well height of 3 m, radius 0.5 m radius and the planned number of wells is 30 wells.

Socialization on Making Infiltration Wells in Halaban Village, Besitang District, Langkat Regency

Halaban Village is located in Besitang District, Langkat Regency. This village does not have clean water supply facilities, either government or private water treatment plants. This is why the majority of villagers use groundwater for their daily needs. But the groundwater will dry up when the dry season comes. This condition is a problem that has not been resolved until now. The community has to spend quite a lot of money to buy clean water for their daily needs when the dry season comes. This problem encourages the author to help the community by providing appropriate technological knowledge regarding the meaning and benefits of infiltration wells. This media is one way to overcome the problem of water shortages. The method used is a non-formal socialization method so that the knowledge conveyed can be better understood by the community. The results of this socialization are expected to be followed by the construction of infiltration wells in every Halaban village house.