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All Journal JURNAL TEKNOLOGI LINGKUNGAN Jurnal Geografi : Media Informasi Pengembangan dan Profesi Kegeografian Forum Geografi Jurnal Rekayasa Lingkungan J SIG (Jurnal Sains Informasi Geografi) Megasains
Setyawan Purnama
Fakultas Geografi UGM
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Energy Environmental Science

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Quality and Type of Chemical of Groundwater at Coastal Areas of Semarang Purnama, Setyawan
Forum Geografi Vol 18, No 2 (2004)
Publisher : Forum Geografi

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Abstract

There are two objectives of this researh. First, to identify and analyze the condition of ground water quality in the research area, and second to determined the chemial types of groundwater. To ahieve these objectives 59 groundwater samples were taken stratifiedly, base on the different of electrical conductance value. As a result, it is identified that most groundwater in the research area is not suitable for drinking water sources, because has high concentration of electrical conductance, turbidity, hardness, chloride, manganese, and salinity. Thiis conclusion is also supported by stiff diagram analysis. The result of Stuyfzand analysis shhows that the chemical types of groundwater is very variative. Groundwater in coastal areas has higher suply of saline water than fresh water.
Sistem Akuifer dan Potensi Airtanah Daerah Aliran Sungai (DAS) Opak Purnama, Setyawan; Suyono, Suyono; Sulaswono, Budi
Forum Geografi Vol 21, No 2 (2007): December 2007
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Opak River Basin is an area with high concentration of settlement. Generally, the settlement use groundwater as a water source. Variation of groundwater condition cause differentiation of water usage in some regions. There are two objectives of this research. First, to determine aquifer system in the research area and second, to calculate the groundwater potential in each aquifer system. To achieve these objectives, aquifer system is determined base on its geology and geomorphology, whereas groundwater potency is calculated by static and dynamic approach. As a result, show that the aquifer system in Opak River Basin can be distinguished into seven aquifer system. There are The Upper Merapi Aquifer System, The Middle Merapi Aquifer System, The Lower Merapi Aquifer System, Baturagung Range Aquifer System, The Aquifer System of Baturagung Range Foot Slope, Sentolo Hill Aquifer System and Sanddune Aquifer System. Among the seventh aquifer system, The Middle Merapi Aquifer System, The Lower Merapi Aquifer System and The Sanddune Aquifer System have high productivity. Sentolo Hill Aquifer System and The Aquifer System of Baturagung Range Foot Slope Aquifer have low productivity, whereas The Baturagung Range is categorized as non akuifer.
Groundwater Conservation Model in Coastal Plain of Semarang City Purnama, Setyawan; Kurniawan, Andri; Sudaryatno, Sudaryatno
Forum Geografi Vol 20, No 2 (2006): December 2006
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

There are three objectives of this research. First, to build the model of groundwater usage and conservation in the research area. Second, to identify the behaviour of model in various usages and conservations. Third, to formulate the policy of groundwater resources management that suitable with the region caracteristic. As a result, show that the programme Powersim 2.5c can be used dan applied in hydrologis, especially in building groundwater conservation model. The conservation model that significantly suitable are to decrease the usage of water in domestic and industrial sector. Relationship by the third objectives, the some policies that can be carried out to conservations, namely decreasing water usage, restricting industrial growth, restricting settlement growth (especially in recharge area) and increasing the capacity of PDAM production.
Groundwater Conservation Model in Coastal Plain of Semarang City Purnama, Setyawan; Kurniawan, Andri; Sudaryatno, Sudaryatno
Forum Geografi Vol 20, No 2 (2006): December 2006
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v20i2.1814

Abstract

There are three objectives of this research. First, to build the model of groundwater usage and conservation in the research area. Second, to identify the behaviour of model in various usages and conservations. Third, to formulate the policy of groundwater resources management that suitable with the region caracteristic. As a result, show that the programme Powersim 2.5c can be used dan applied in hydrologis, especially in building groundwater conservation model. The conservation model that significantly suitable are to decrease the usage of water in domestic and industrial sector. Relationship by the third objectives, the some policies that can be carried out to conservations, namely decreasing water usage, restricting industrial growth, restricting settlement growth (especially in recharge area) and increasing the capacity of PDAM production.
Neraca Air di Pulau Bali Purnama, Setyawan
Forum Geografi Vol 23, No 1 (2009): July 2009
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v23i1.4999

Abstract

As a main destination of tourism in Indonesia, Bali develops rapidly. The impact of this phenomena is the increasing of water need in some sectors, whereas the available of water is constant. There are two objectives of this research. First, to calculate water available and water need in the research area, and second to analysis the water balance. Water available cover groundwater, rivers water and springs water, whereas water need cover domestic usage, industrial and hotel usage, cattle, fishery and irrigation. Groundwater is estimated by water balance concept, river water and spring data is collected from BPSDA Bali Province, whereas the water need is counted base on secondary data that collected from some departments in Bali Province. As a result, show that the water available in Bali Island is 2.604.483.300 m³/year, which consist of groundwater 693.296.200 m³/year, rivers water 1.903.678.000 m³/year and springs 7.509.600 m³/year. The water needs reach 1.213.625.300 m³/year, which consist of domestic usage 121.276.260 m³/year, industrial and hotel usage 20.038.068 m³/year, cattle 31.272.435 m³/year, fishery 125.305.574 m³/year and irrigation 915.733.000 m³/year. Base on the water balance ratio, it is known that the number of ratio is 47% that it means almost in critical point.
Quality and Type of Chemical of Groundwater at Coastal Areas of Semarang Purnama, Setyawan
Forum Geografi Vol 18, No 2 (2004)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v18i2.613

Abstract

There are two objectives of this researh. First, to identify and analyze the condition of ground water quality in the research area, and second to determined the chemial types of groundwater. To ahieve these objectives 59 groundwater samples were taken stratifiedly, base on the different of electrical conductance value. As a result, it is identified that most groundwater in the research area is not suitable for drinking water sources, because has high concentration of electrical conductance, turbidity, hardness, chloride, manganese, and salinity. Thiis conclusion is also supported by stiff diagram analysis. The result of Stuyfzand analysis shhows that the chemical types of groundwater is very variative. Groundwater in coastal areas has higher suply of saline water than fresh water.
Sistem Akuifer dan Potensi Airtanah Daerah Aliran Sungai (DAS) Opak Purnama, Setyawan; Suyono, Suyono; Sulaswono, Budi
Forum Geografi Vol 21, No 2 (2007): December 2007
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v21i2.2356

Abstract

Opak River Basin is an area with high concentration of settlement. Generally, the settlement use groundwater as a water source. Variation of groundwater condition cause differentiation of water usage in some regions. There are two objectives of this research. First, to determine aquifer system in the research area and second, to calculate the groundwater potential in each aquifer system. To achieve these objectives, aquifer system is determined base on its geology and geomorphology, whereas groundwater potency is calculated by static and dynamic approach. As a result, show that the aquifer system in Opak River Basin can be distinguished into seven aquifer system. There are The Upper Merapi Aquifer System, The Middle Merapi Aquifer System, The Lower Merapi Aquifer System, Baturagung Range Aquifer System, The Aquifer System of Baturagung Range Foot Slope, Sentolo Hill Aquifer System and Sanddune Aquifer System. Among the seventh aquifer system, The Middle Merapi Aquifer System, The Lower Merapi Aquifer System and The Sanddune Aquifer System have high productivity. Sentolo Hill Aquifer System and The Aquifer System of Baturagung Range Foot Slope Aquifer have low productivity, whereas The Baturagung Range is categorized as non akuifer.
Hasil Aman Penurapan Airtanah untuk Kebutuhan Non Pertanian di Kabupaten Bantul Purnama, Setyawan
Forum Geografi Vol 26, No 1 (2012): July 2012
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v26i1.5052

Abstract

There are three objectives of this research. First, to calculate the potency of groundwater in Bantul District, second, to calculate the utilization for non agricultural usage and third, to analyze the safe yield of groundwater exploitation for non agricultural usage. To achieve these objectives, groundwater potency is calculated by static method, i.e. by multiplying area width, aquifer thickness and specific yield. Non Agricultural usage is determined by calculating the water utilization for domestic, industry, hotel and livestock. Safe yield is calculated base on area width, groundwater fluctuation and its specific yield. The groundwater resources potency of research area that has area width 506,85 km², amounted 10.059.393.198 m³/year, whereas the safe yield is 260.365.868 m³/year. Water utilization for domestic, industry, hotel and livestock is 21.658.541 m³/year. Reviewed number of potency and utilization, the potency of groundwater in the research area is still able to meet its water needs for non agricultural because the usage have not exceeded its safe yield. Although the groundwater potency is high, the agricultural sector in Bantul District does not use groundwater resources significantly.
POTENSI SUMBERDAYA AIR DAS SERAYU Purnama, Setyawan
Jurnal Rekayasa Lingkungan Vol 6, No 3: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

Serayu River Basin is one of critical river basin in Java. This problems become seriously because the river basin cover wide area, that almost cover most of the south of Central Java Province. This research is aimed to calculate and analyse the resources potency of rainfall, river, groundwater and springs. Rainfall potency is calculated by isohyetal method, river potency is determined base onhydograph dan water level data. Groundwater and springs is determined qualitatifly base on Hydrogeological Map, whereas quantitatifly is calculated by meteorogical method base on water balance concept in river basin. As a result, show that the average rainfall in Serayu River Basin is 3,577 m3/year, whereasthe rainfall potency is 13,481.00 x 106 m3/year. The average of monthly maximum discharge in Serayu is 60 m3/second, with monthly minimum discharge 11 m3/second. Meteorologically, groundwater storage in Serayu River Basin is 105,981,890 m3/year. Beside that, in Serayu River Basin also have 93 springs, that is 10 springs with discharge more than 500 litre/second, 15 springs with discharge 50-100 litre/second, 20 springs with discharge 10-50 litre/second and 24 springs with discharge less than 10 litre/second.Keywords : Water resources potency, Serayu River Basin
Kajian Daerah Imbuhan Airtanah di Kabupaten Ngawi Purnama, Setyawan; Tivianton, Tommy Ardian; Cahyadi, Ahmad; Febriarta, Erick
Jurnal Geografi : Media Informasi Pengembangan dan Profesi Kegeografian Vol 16, No 1 (2019): January
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jg.v16i1.18358

Abstract

Tujuan dari penelitian ini adalah menentukan daerah imbuhan airtanah di daerah penelitian dan mengkaji keterkaitan daerah imbuhan dengan bentuk lahan wilayahnya. Untuk mencapai tujuan tersebut dilakukan klasifikasi daerah imbuhan airtanah berdasarkan parameter konduktivitas hidrolik batuan, curah hujan, tanah penutup, kemiringan lereng dan kedalaman muka freatik. Masing-masing parameter mempunyai pengaruh terhadap resapan air ke dalam tanah yang dibedakan dengan nilai bobot. Parameter yang mempunyai nilai bobot paling tinggi merupakan parameter yang paling menentukan kemampuan peresapan untuk menambah air tanah secara alamiah pada suatu cekungan airtanah Hasil skoring dari beberapa parameter tersebut kemudian dianalisisi dengan unit analisis bentuk lahan daerah penelitian. Hasil penelitian menunjukkan bahwa di Kabupaten Ngawi terdapat dua klasifikasi daerah imbuhan airtanah yaitu daerah imbuhan utama, dan daerah imbuhan tidak berarti. Klasifikasi daerah imbuhan airtanah utama didapatkan pada daerah tengah dan sisi selatan hingga bagian tengah daerah ini. Menurut bentuk lahannya, wilayah yang merupakan daerah imbuhan utama merupakan lereng Gunungapi Lawu, dataran aluvial, hingga lembah Sungai Bengawan Solo, sedangkan pada daerah perbukitan struktural (sinklinal dan antiklinal) terklasifikasikan menjadi imbuhan airtanah tidak berarti. Secara keseluruhan apabila dilihat dari luas total Kabupaten Ngawi, maka Kabupaten Ngawi memiliki 74,5% daerah imbuhan utama, dan 25,5 % daerah imbuhan tidak berarti.The purpose of this study is to determine the groundwater recharge area in the research area and examine the linkages between the recharge area and the region’s landform. To achieve this goal, classification of groundwater recharge areas is carried out based on rock hydraulic conductivity parameters, rainfall, , soil material, slope and depth of phreatic. Each parameter has an influence on water absorption into the soil which is distinguished by the weight value. Parameters that have the highest weight value are the parameters that most determine the ability of infiltration to naturally add groundwater to a groundwater basin. The final score  of these parameters were then analyzed with a unit of analysis of the research area’s landform. The results of the study show that in Ngawi Regency there are two classifications of groundwater recharge areas, namely the main recharge areas, and insignificant recharge areas. The main classification of groundwater recharge areas is found in the central and southern regions to the central part of this area. According to the landform, the area which is the main recharge area is the slope of Lawu Volcano, alluvial plain, to the Bengawan Solo River valley, while in the area of structural hills (sinklinal and anticlinal) classified as groundwater recharge is meaningless. Overall, when viewed from the total area of Ngawi Regency, Ngawi Regency has 74.5% of the main recharge area, and 25.5% of the recharge area is meaningless.
Co-Authors Ahmad Cahyadi **) ANDRI KURNIAWAN Budi Sulaswono, Budi Febriarta, Erick La Musa Slamet Suprayogi Sudaryatno Sudaryatno Suyono Suyono Tivianton, Tommy Ardian