Impact assessment of apartment building foundation to Terban spring discharge, Yogyakarta City

Wilopo, Wahyu; Putra, Doni Prakasa Eka; Setiawan, Hendy; Setyawan, Kurnianto Dwi

doi:10.15243/jdmlm.2020.073.2111

Cited by 4 publications

(3 citation statements)

References 9 publications

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“…The conceptual model was created to simplify the actual groundwater's natural system conditions and consist of the groundwater's geological and hydrogeological conditions in the study area. It was used to understand the aquifer system of the research area [31]. Based on field observation and evaluation of the boundaries of groundwater flow direction, the study area consists of 3 types of boundary conditions: no-flow boundary, constant head boundary, and river boundary (Figure 6).…”

Section: Hydrogeological Conceptual Modelmentioning

confidence: 99%

Hydrogeological conceptual model in the Batang Integrated Industrial Park, Central Java, Indonesia

Widyatama,

Wilopo,

Broto

2024

E3S Web of Conf.

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The construction of Batang Integrated Industrial Park (BIIP) will surely affect the groundwater in this area and its surroundings. To estimate the impact of changes in land use and the potential use of industrial water from groundwater, a hydrogeological conceptual model has been constructed for the BIIP. The methodology involves gathering rainfall data to estimate potential recharge. The secondary and primary data of deep and shallow wells were used to evaluate the boundaries of groundwater flow directions and develop the geometry of the aquifer system. The boundary condition observation data, geophysics data, drilling log, and slug test results were collected and interpreted in a 2-dimensional as a conceptual model of the hydrogeological condition. The result reveals that groundwater flow boundaries are Java Sea in the North as a constant head boundary, Brontak River in the west, Pesanggrahan River in the east as a river boundary, and Srigunung hills in the south as a no-flow boundary. The aquifer system of the area is dominated by sand as an unconfined aquifer with a thickness maximum of 88 m and located up to 47 m below the surface. The recharge in the research area is approximately 950.5 mm/year. The hydraulic conductivity of the aquifers is 0.16 m/day to 0.401 m/day. This hydrogeological conceptual model provides essential information for numerical groundwater models.

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Section: Hydrogeological Conceptual Modelmentioning

confidence: 99%

Hydrogeological conceptual model in the Batang Integrated Industrial Park, Central Java, Indonesia

Widyatama,

Wilopo,

Broto

2024

E3S Web of Conf.

Self Cite

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“…In recent decades, population growth and economic development have increased groundwater demand and are projected to increase by around 1% in the next 30 years [2]. The rapid urbanization in Yogyakarta began in the early 1970s with a high rate of development building infrastructure in urban areas [3]- [5]. The result of rapid development in Yogyakarta is massive increases in groundwater use have occurred in the Yogyakarta-Sleman groundwater basin [3], [6], [7].…”

Section: Introductionmentioning

confidence: 99%

Groundwater recharge estimation using chloride mass balance method on the southern slope of Merapi Volcano, Indonesia

Adi,

Wilopo,

Setiawan

2023

IJAAS

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Groundwater is a main resource for the majority of Indonesian people as a source of clean water to meet their daily needs. The increase in groundwater use is unavoidable due to increasing development in Indonesia, especially in Yogyakarta. Groundwater recharge is important in the hydrological cycle to meet groundwater needs. Therefore, this study aims to estimate groundwater recharge by the chloride mass balance (CMB) method on the southern slope of Merapi Volcano in Yogyakarta, Indonesia. This research was conducted in the rainy and dry seasons from August 2022 until January 2023. This research collects annual rainfall near the study area from the Meteorology, Climatology, and Geophysics Agency (BMKG) Yogyakarta station, monthly data collected from eighteen samples of groundwater station, and monthly data collected from fifteen samples of rainwater in the study area. The chemical content of groundwater and rainwater samples is analyzed using argentometry to obtain chloride concentration. The result of annual rainfall in the study area is 3,603.878 mm/year. The average chloride concentration in rainwater is 1.1 mg/L, while the average chloride concentration in groundwater is 8.015 mg/L. The CMB method calculation showed that the recharge in the study area ranges from 171.65 to 1,711.29 mm/year. The groundwater recharge has a positive correlation with elevation and rainfall. High groundwater recharge is also found in the northern area due to fractured lava aquifer.

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“…Urbanization has transformed rural dwellings into new urban settlements, tourism centers, and business streets. This phenomenon has stimulated the high rate of building construction and physical spaces such as roads and housing that can produce more urban wastewater and reduce natural infiltration and groundwater flow (Wilopo et al, 2020;Siddik et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal analysis of groundwater level trends and recharge rate estimation in the unconfined aquifer of Yogyakarta-Sleman Groundwater Basin, Indonesia

Razi,

Wilopo,

Putra

2023

J. Degrade. Min. Land Manage.

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Groundwater is the primary water resource used for domestic, industrial, and agricultural needs for the community in the Yogyakarta-Sleman Groundwater Basin area. The urbanization rate has increased since the 1970s and has made massive use of groundwater, causing environmental problems, including the quality and quantity of groundwater. Therefore, this study aimed to investigate the spatiotemporal groundwater fluctuation trends based on the non-parametric Mann-Kendall test and recharge rate estimation using the water table fluctuation (WTF) method. The groundwater level data were collected from monitoring wells across the study area during 2018-2022, particularly emphasizing 8 wells representing recharge, transition, and discharge areas. The results showed that the groundwater fluctuation pattern generally followed the season. During the rainy season from January to April, groundwater reached the shallowest level and began to decline gradually when it entered the dry season from May to October. Groundwater recharge rate was estimated to vary from 171.49 to 1,505.56 mm/year. Meanwhile, the Mann-Kendall test showed that most of the Yogyakarta-Sleman Groundwater Basin area did not experience significant fluctuation trends, except for two monitoring wells in the center of Yogyakarta City which had increasing groundwater level trends. The rising groundwater levels were expected to be caused by urban wastewater recharge. This study has provided a new description and insights into spatiotemporal changes in the groundwater table and the quantification of groundwater recharge.

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Impact assessment of apartment building foundation to Terban spring discharge, Yogyakarta City

Cited by 4 publications

References 9 publications

Hydrogeological conceptual model in the Batang Integrated Industrial Park, Central Java, Indonesia

Hydrogeological conceptual model in the Batang Integrated Industrial Park, Central Java, Indonesia

Groundwater recharge estimation using chloride mass balance method on the southern slope of Merapi Volcano, Indonesia

Spatiotemporal analysis of groundwater level trends and recharge rate estimation in the unconfined aquifer of Yogyakarta-Sleman Groundwater Basin, Indonesia

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