Intrusi Air Laut Pada Sistem Akuifer Tertekan Cekungan Air Tanah Jakarta Berdasarkan Analisis Hidrokimia Dan Hidroisotop

Setiawan, Taat; Yermia, Eli; Purnomo, Budi Joko; Tirtomihardjo, Haryadi

doi:10.14203/risetgeotam2017.v27.430

Cited by 8 publications

(10 citation statements)

References 1 publication

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“…Therefore, the EC and TDS values usually show a similar pattern (Putra et al, 2019). TDS is the amount of all dissolved minerals that are left when all the water is evaporated, or the amount of salt contained in the water (Davis & De Wiest, 1967, in Setiawan et al, 2017. The EC values of groundwater measured in the field are shown in Table 2.…”

Section: Dug Well Contour Of Phmentioning

confidence: 95%

Hydrochemical of Groundwater and the Potential of Sea Water Intrusion in Tanah Laut, South Kalimantan

Putranto¹

2021

Proceedings of the 5th International Conference of Geological Engineering Faculty

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The Tanah Laut area in South Kalimantan Province is a rapidly developing area, in line with the plan to relocate the country's capital. Therefore, the need for groundwater as a water resource in community life in that area needs to be supported by various studies. This research is intended as a hydrogeological survey in Tanah Laut District, to determine the local groundwater hydrochemistry and its potential for sea water intrusion. The research was conducted in the field by collecting data on the physical properties of groundwater in 155 dug wells and 50 artesian wells. Several groundwater samples representing free and confined aquifers were tested for physical/chemical properties in the laboratory. The analysis was performed based on groundwater table, pH, electrical conductivity (EC) and groundwater facies. The results showed that free groundwater has a pH of 6.1 -8.4 and a total dissolved solid (TDS) ranged from 20.3 -964 μS/cm, while the confined groundwater had a pH of 4.01 -9.95 and a TDS of 28 -2,670 μS/cm. Groundwater facies vary widely, generally dominated by Na and bicarbonate ions. Brackish groundwater was found in confined aquifers in two locations, namely Asam Jaya and Mekar Sari, indicating that the research area has the potential of sea water intrusion.

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Section: Dug Well Contour Of Phmentioning

confidence: 95%

Hydrochemical of Groundwater and the Potential of Sea Water Intrusion in Tanah Laut, South Kalimantan

Putranto¹

2021

Proceedings of the 5th International Conference of Geological Engineering Faculty

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“…The data from Table 4 were then plotted on a map and then compared with the results from previous studies (Setiawan, et al, 2017). The similar seawater intrusion occurs in the Jakarta area in the western and central part of the coast, but it is relatively invisible in the eastern part.…”

Section: Data Processingmentioning

confidence: 95%

“…A significant groundwater level drawdown in large cities in Indonesia (Wirakusumah & Danaryanto, 2004;Taniguchi, Burnett, & Ness, 2008;Hosono, et al, 2011;Kagabu, et al, 2011, 2012, Taufiq, et al, 2018a, has caused many subsurface issues: land subsidence (Taufiq, 2010;Sarah, et al, 2018;Bandono, 1983;DGTL & Dinas Pertambangan DKI Jakarta, 1996;Ramdhan & Hutasoit, 2007), seawater intrusion (Hehanusa, 1979;Djijono, 2002;Setiawan, et al, 2017, groundwater pollution (Hosono, et al, 2009;Taufiq, et al, 2019), the increase of groundwater temperature (Lubis, et al, 2013), groundwater mixing (Taufiq, et al, 2018b), groundwater age rejuvenation (Kagabu, et al, 2012;Taufiq, et al, 2018a) and others.…”

Section: Introductionmentioning

confidence: 99%

“…The groundwater drawdown in Jakarta area has affected the subsurface environment in negative ways, such as seawater intrusion and land subsidence. The seawater intrusion under unconfined aquifers in Jakarta area had been identified from the presence of brackish water which has a Cl/HCO 3 > 1 ratio (Setiawan, et al, 2017) and groundwater levels below sea level (Hehanusa, 1979). Soenarto & Widjaya (1985) also found that the intrusion affected not only unconfined aquifers but also confined aquifers.…”

Section: Introductionmentioning

confidence: 99%

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Numerical prediction of the groundwater drawdown impact in Jakarta

Nursyriwan¹,

Bisri²,

Montarcih³

et al. 2019

IJG

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An excessive groundwater usage is happening in Jakarta, Indonesia, due to the population growth and industrial development so that it experiences a significant groundwater drawdown which could enhance the risk of seawater intrusion and land subsidence. Existing conditions in 2018 show that seawater intrusion occurred at the Western and Central coastal area and land subsidence happen in the Northern and Central part. This research, a numerical simulation, is conducted by modeling such causality during the critical period, the next 20 years. The result shows that for every groundwater drawdown of 10 m/year, it will cause intrusion 0.7 km/year in the Western and Central and 1.1 km/year in the Eastern area after 2028. The 10 m/year groundwater drawdown also results in land subsidence of 5.7 cm/year in the Northern and 2.5 cm/year in Central Jakarta. This result is useful as an input for groundwater management policies and to prevent the environmental impacts occurred at other large coastal cities.

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“…This has impacted the condition of Jakarta Bay as the most polluted bay in Indonesia (Kantor Menteri Negara Lingkungan Hidup, 1997). In addition, excessive groundwater extraction in the coastal areas of Jakarta has led to seawater intrusion (Onodera et al, 2008;Setiawan et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

The Relationship between Total Income and Groundwater Utilization on Fluviomarine Landform Area in Jakarta

2017

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Abstract. Approximately 40% of Jakarta is below sea level when the tide is in, which is referred to as a fluviomarine landform. This study aims: (a) to analyse the relationship between total income and household water demand, and (b) to analyse the relationship between total income and the proportion of groundwater utilisation. It uses quantitative and qualitative analysis survey methods, as well as sampling methods, to represent the population. The population of this research is comprised of households that use groundwater on land units made from two classes of landform, two classes of settlement pattern, and three classes of settlement density. To determine the 30 wells, samples with proportional random sampling of the land units formed with groundwater samples have been taken at a radius of 100m from each well sample of 110 households. Quantitative and qualitative approaches have been used to prove the research aims. The analysis of this study indicates that the total income is proportional to household water demand but that it is inversely proportional to the share of groundwater utilisation. The results also show that groundwater is not the only source to fulfil household water demand, and that it is necessary to utilise other sources of water.Keywords: Fluviomarine Landform; Water Demand; Groundwater Utilization; Jakarta. Abstrak

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Intrusi Air Laut Pada Sistem Akuifer Tertekan Cekungan Air Tanah Jakarta Berdasarkan Analisis Hidrokimia Dan Hidroisotop

Cited by 8 publications

References 1 publication

Hydrochemical of Groundwater and the Potential of Sea Water Intrusion in Tanah Laut, South Kalimantan

Hydrochemical of Groundwater and the Potential of Sea Water Intrusion in Tanah Laut, South Kalimantan

Numerical prediction of the groundwater drawdown impact in Jakarta

The Relationship between Total Income and Groundwater Utilization on Fluviomarine Landform Area in Jakarta

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