Assessment of Groundwater Vulnerability and Total Organic Carbon in the Shallow Groundwater of Wonosari City, Gunung Kidul, Yogyakarta, Indonesia

https://doi.org/10.22146/jag.68007

Soutsadachan Chandalsouk(1), Doni Prakasa Eka Putra(2*), Wahyu Wilopo(3)

(1) National University of Lao
(2) Department of Geological Engineering, Faculty of Engineering, Universitas Gadjah Mada
(3) Department of Geological Engineering, Faculty of Engineering, Universitas Gadjah Mada
(*) Corresponding Author

Abstract


Wonosari city is the capital of Gunung Kidul regency of Yogyakarta Special Province. The city is located in the karst plateau overlaying a succesion of limestone lithologies. The groundwater on this city is shallow and people used this groundwater as their daily water supply. This study aims to determine the intrinsic groundwater vulnerability and to identify the TOC level in groundwater also to investigate the relationship between groundwater vulnerability and TOC levels in the groundwater. Field observation was conducted on 40 groundwater occurrences (dug wells, bore wells and springs) to investigate the aquifer types, overlying lithology and depth to groundwater. At the same time, 16 groundwater samples were taken from the dug wells and analyse for the TOC content. Secondary data was also collected from previous researches especially the information of sub-surface lithology. Groundwater vulnerability was evaluate by using GOD method and correlation between groundwater vulnerability and TOC in groundwater was analyzed spatially and statistically by using map pverlaying, linear regression and Spearman’s rho test, respectively. The results showed that the groundwater vulnerability in the city is dominated by extreme and high vulnerability, covers about 84 % of study area. The TOC level in the groundwater ranges between  4.532 mg/L to 6.849 mg/L which showing a process of pollution loading may occur. Linear regression and Spearman’s rho value show that the TOC levels and  groundwater vulnerability has a moderate positive correlation with r2 value of about 0.324 for linear regression. Despite the moderate correlation, the research prove that the groundwater vulnerability map reveals on this study is good enough to represent the ability of natural condition in protecting the groundwater quality.


Keywords


Groundwater vulnerability, GOD, TOC, Wonosari-Indonesia

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References

ARGOSS, 2002, Assessing Risk to Groundwater from On-site Sanitation: Scientific Review and Case Studies, British Geological Survey Commissioned Report, England., 97p.

Bradl, H.B. (2005). Heavy Metals in the Environment, Volume 6, London, Elsevier. 282p.

Djaeni, A., 1982, Peta Hidrogeologi Indonesia Lembar Yogyakarta, skala 1:250.000, Direktorat Geologi Tata Lingkungan, Bandung

Eby, G.N. (2004). Principles of Environmental Geochemistry (K. Dodson, Ed.): USA, Thomson Brooks/Cole, 511 p.

Foster, S., Hirata, R., Gomes, D., D’Elia, M., Paris, M., 2002, Groundwater Quality Protection: A Guide for Water Utilities, Municipal Authorities, and Environment Agencies, The World Bank, Washington, D.C., 103p.

Harter, T. dan Walker, L. G., 2001, Assessing Vulnerability of Groundwater, California Department of Health Services, Sacramento, CA, USA., Report 1–11.

Hartono, G., and Bronto, S. 2007. Asal-usul pembentukan Gunung Batur di daerah Wediombo, Gunungkidul, Yogyakarta. Jurnal Geologi Indonesia, Vol. 2 No. 3 September 2007, p.143 – 158.

Kaempfner,L., 2019. Redox State and Zonation of Groundwater In the City of Yogyakarta (Java, Indonesia). Thesis, Lehr- und Forschungsgebiet Hydrogeologie Faculty of Georesources and Materials Engineering, RWTH Aachen and Universitas Gadjah Mada (Unpublished).

Khorida, P., A., 2019, Pemetaan Kerentanan Air Tanah Regional Daerah Istimewa Yogyakarta, Skripsi, Departemen Teknik Geologi, Fakultas Teknik, Universitas Gadjah Mada, (Tidak dipublikasikan).

MacDonald and Partners (1984), Greater Yogyakarta Groundwater Resources Study Volume 3: Groundwater, Directorate General of Water Resources Development Project (P2AT), Ministry of Public Works, Government of The Republic of Indonesia, 116 p.

Morris, B.L., Lawrence, A.R., Chilton, P.J.C., Adams, B., Calow, R.C., and Klinck, B.A. (2003), Groundwater and its susceptibility to degradation: A global assesment of the problem and options for management. Early Warning and Assesment Report Series, RS.03-3. United Nations Environment Programme, Nairobi, Kenya,

Mudarra, M., Andreo, B., Barbera, J.A., and Mudry, J., 2014, Hydrochemical dynamics of TOC and NO3-contents as natural tracers of infifiltration in karst aquifers, Environmental Earth Science Vol. 71, p.507-523, Springer.

Permenkes RI No. 32 No.32, 2017, Tentang Standar Baku Mutu Kesehatan Lingkungan dan Persyaratan Kesehatan Air Untuk Keperluan Higiene Sanitasi, Kolam Renang, Solus Per Aqua, dan Pemandian Umum”, Kementrian Kesehatan Republik Indonesia.

Putra, D. P.E, 2007, The Impact of Urbanization on Groundwater Quality, A Case Study in Yogyakarta City–Indonesia, Mitteilungen zur Ingenieurgeologie und Hydrogeologie, Heft 96, Okt 2007, Herausgegeben vom Lehrstuhl fuer Ingenieurgeologie und Hydrogeologie, 148 p.

Sanusi, R. F., 2017, Kerentanan Airtanah Terhadap Pencemaran di Kota Wonosari dan Sekitarnya Kabupaten Gunungkidul, Daerah Istimewa Yogyakarta, Thesis, Departemen Teknik Geologi, Fakultas Teknik, Universitas Gadjah Mada, (Tidak dipublikasikan).

Setiawan, T., & Asgaf, N. M. A., 2016. Analisis Karakteristik Akuifer dan Zonasi Kuantitas Air Tanah di Dataran Kars Wonosari dan Sekitarnya, Kabupaten Gunungkidul, Provinsi Daerah Istimewa Yogyakarta. Jurnal Lingkungan dan Bencana Geologi, 7(3), p. 155-167.

Surono, Toha, B., & Sudarno, I., 1992. Peta Geologi Lembar Surakarta-Giritontro, Jawa, Bandung, Pusat Penelitian dan Pengembangan Geologi.

Pavlis, M., and Cummins, E., 2014, Using Total Organic Carbon for The Assessment of Groundwater Vulnerability in Karst Regions at Regional Scales, Environmental Earth Science Vol. 72, Springer, p.1993-2007.

Vbra, J., and Zaporosec, A. (1994), Guidebook on Mapping Groundwater Vulnerability. International Association of Hydrogeologist (International Contributions to Hydrogeology 16). Verlag Heinz Heise, Hannover, 131p.

Widiastuti, A. P. and Widyastuti, 2012, Zonasi Kerentanan Air Tanah Bebas Terhadap Pencemaran dengan Metode APLIS di Kecamatan Wonosari Kabupaten Gunungkidul: Jurnal Bumi Indonesia, Vol. 1(2), p.38-46.

Zaporozec, A., 2004, Groundwater contamination inventory: a methodological guide, UNESCO, Paris, Prancis, IHP-VI, Series on Groundwater No. 2. 160p.



DOI: https://doi.org/10.22146/jag.68007

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