Groundwater quality mapping for drinking and irrigation purposes using statistical, hydrochemical facies, and water quality indices in Tercha District, Dawuro Zone, Southern Ethiopia


  • Arefegn Arota Department of Geology, Arba Minch University, Ethiopia
  • Abunu Atlabachew
  • Abel Abebe
  • Muralitharan Jothimani Department of Geology, College of Natural Sciences, Arba Minch University, P O Box:21, Ethiopia



Dawuro Zone, drinking water, groundwater quality, irrigation, Southern Ethiopia


When groundwater quality is good, it may be a substantial water supply for various applications. However, no systematic research on hydrogeochemistry and water quality features for drinking and irrigation has been undertaken in the present study area. As a result, the current study looked at hydrogeochemical variables and groundwater quality for drinking and irrigation in Tercha district, Dawuro Zone, Southern Ethiopia. Forty-seven groundwater samples were collected and tested to satisfy the required target for various physicochemical properties. The hydrogeochemical features of the groundwater in the study region were assessed using in-situ testing and laboratory analysis of physicochemical parameters. Groundwater samples from the research region were slightly acidic to slightly basic, with the principal cations and anions decreasing in sequence: Na+ > Ca2+ > Mg2+ > K+ and HCO3-> Cl-> SO42-. The hadrochemical facies of the studied region evolved from mildly mineralized dominant highland Ca-HCO3 water types to moderately mineralized mixed Ca-Na-HCO3 water types to highly mineralized deep rift floor Na-HCO3 water types. Additionally, the World Health Organization and the Ethiopian Standard Agency were utilized to compare the drinking water quality. Except for NO3- (4.25 %), Fe (8.51 %), and F- (2.12%), all groundwater samples from the research region were determined to be within permitted limits and appropriate for drinking. According to the Water Quality Index, about 80.86% of groundwater samples are excellent, and 19.14% are good drinking water. Sodium absorption ratio (SAR), sodium (Na) percentage, residual sodium carbonate RSC, permeability index (PI), and magnesium hazard were among the irrigation water quality indicators calculated (MH). The great majority of groundwater samples are suitable for agricultural use.


Adimalla, N. and Venkatayogi, S. 2017. Mechanism of fluoride enrichment in groundwater of hard rock aquifers in Medak, Telangana State, South India. Environmental Earth Sciences 76:45, doi:10.1007/s1266 5-016-6362-2.

APHA (American Public Health Association). 1998 Standard methods for the examination of water and wastewater, 20th eds. American Public Health Association/American Water Works Association/Water Environment Federation, Washington DC.

Arumugam, K. and Elangovan, K. 2009. Hydrochemical characteristics and groundwater quality assessment in Tirupur Region, Coimbatore District, Tamil Nadu, India. Environmental Geology 58:1509-1520.

Bhatia, H. 2003. A textbook on Environmental Pollution and Control. Galgotia Publications Private Limited, Delhi.

Bozdağ, A. and Göçmez, G. 2013. Evaluation of groundwater quality in the Cihanbeyli basin, Konya, Central Anatolia, Turkey. Environmental Earth Sciences 69:921-937, doi:10.1007/s12665-012-1977 4.

Deepa, S. and Venkateswaran, S. 2018. Appraisal of groundwater quality in upper Manimuktha sub-basin, Vellar river, Tamil Nadu, India by using Water Quality Index (WQI) and multivariate statistical techniques. Modeling Earth Systems and Environment 4:1165-1180, doi:10.1007/s40808-018-0468-3.

Delgado, C., Pacheco, J., Cabrera, A., Batllori, E., Orellana, R. and Bautista, F. 2010. Quality of groundwater for irrigation in tropical karst environment: the case of Yucatan, Mexico. Agricultural Water Managemen 97:1423-1433.

Deshpande, S.M. and Aher, K.R. 2012. Evaluation of groundwater quality and its suitability for drinking and agriculture use in parts of Vaijapur, District Aurangabad, MS, India. Research Journal of Chemical Sciences 2(1):25-31.

Doneen, L.D. 1964. Notes on water quality in agriculture. Published as a water science and engineering paper, 4001, Department of water science and engineering, University of California.

Ethiopian Standard Agency (ESA). 2013. Compulsory Ethiopian drinking water quality standard specification, ICS: 13.060.20. 3rd ed. pp. 4-5.

Gibbs, R.J. 1970. Mechanisms controlling world’s water chemistry. Science 170:1088-1090. doi:10.1126/science.170.3962.1088.

Haritash, A.K., Kaushik, C.P., Kaushik, A., Kansal, A. and Yadav, A.K. 2008. Suitability assessment of groundwater for drinking, irrigation and industrial use in some North Indian villages. Environmental Monitoring and Assessment 145: 397-408.

Hem, J.D. 1985. Study and Interpretation of the Chemical Characters tics of natural water. 3rd edition. U.S. Geological (1979) Survey, Alexandria, 263pp.

Hosseinifard, S.J. and Aminiyan, M.M. 2015. Hydrochemical Characterization of Groundwater Quality for Drinking and Agricultural Purposes: A Case Study in Rafsanjan Plain, Iran. Water Quality, Exposure and Health 7:531-544.

Jeong, C.H. 2001. Effect of land use and urbanization on hydrochemistry and contamination of groundwater from Taejon area, Korea. Journal of Hydrology 253(1-4):194-210.

Khan, M.J., Shah, B.A. and Nasir, B. 2020. Groundwater quality assessment for drinking purpose: a case study from Sindh Industrial Trading Estate, Karachi, Pakistan. Modeling Earth Systems and Environment 6:263-272, doi:10.1007/s40808-019-00676-x.

Khorsandi, K.Z., Dehdari, S. and Taatpour, F. 2017. Evaluation of spatial interpolation methods for some groundwater qualitative parameters of Najafabad Plain, Isfahan. Modeling Earth Systems and Environment 3:1441-1448, doi:10.1007/s40808-017-0355-3.

Kim, K., Rajmohan, N., Kim, S.H., Hwang, G.S., Yun, S.T., Gu, B., Cho, M.J. and Lee, S.H. 2005. Evaluation of geochemical processes affecting groundwater chemistry based on mass balance approach: A case study in Namwon, Korea. Geochemical Journal 39:357-369.

Kumar, P.J. S. 2017. Geostatistical modeling of fluoride enrichment and nitrate contamination in the groundwater of Lower Bhavani Basin in Tamil Nadu, India. Modeling Earth Systems and Environment 3:1, doi:10.1007/s40808-016-0260-1.

Kumar, P.J.S. and Augustine, C.M. 2021. Entropy-weighted water quality index (EWQI) modeling of groundwater quality and spatial mapping in Uppar Odai Sub-Basin, South India. Modeling Earth Systems and Environment, doi:10.1007/s40808-021-01132-5.

Kumar, S., Rajesh, V. and Khan, N. 2020. Evaluation of groundwater quality in Ramanathapuram district, using water quality index (WQI). Modeling Earth Systems and Environment, doi:10.1007/s40808-020-01025-z.

Kumar, S.K., Logeshkumaran, A., Magesh, N.S., Godson, S.P. and Chandrasekar, N. 2015. Hydrogeochemistry and application of water quality index (WQI) for groundwater quality assessment, Ann Nagar, part of Chennai City, Tamil Nadu, India. Applied Water Science 5:335-343.

Nematollahi, M.J., Ebrahimi, P., Razmara, Mand Ghasemi, A. 2015. Hydrogeochemical investigations and groundwater quality assessment of Torbat-Zaveh plain, Khorasan Razavi, Iran. Environmental Monitoring and Assessment 188(2):2, doi:10.1007/s10661-015-4968-6.

Olofinlade, W.S, Daramola, S.O. and Olabode, O.F. 2018. Hydrochemical and statistical modeling of groundwater quality in two contrasting geological terrains of southwestern Nigeria. Modeling Earth Systems and Environment 4:1405-1421, doi:10.1007/s40808-018-0486-1.

Paliwal, K.V. 1972. Irrigation with saline water. Eos, Transactions American Geophysical Union 35:843–961.

Piper, A.M. 1944. A graphical procedure in the geochemical interpretation of water analysis. Eos, Transactions American Geophysical Union 25:914-928. doi:10.1029/TR025i006p00914.

Raju, N.J., Ram, P., Dey, S. 2009. Groundwater quality in the lower Varuna river basin, Varanasi district, Uttar Pradesh. Journal Geological Society of India 73:178-192.

Sawyer, G.N. and McCarthy, D.L. 1967. Chemistry of sanitary engineers (2nd ed., p. 518). New York: McGraw Hill.

Shinde, S., Choudhari, P.P. and Popatkar, B. 2021. Assessment of groundwater quality using GIS in Thane Municipal Corporation, Maharashtra, India. Modeling Earth Systems and Environment 7:1739-1751, doi:10.1007/s40808-020-00906-7.

Shroff, P., Vashi, R.T., Champaneri, V.A. and Patel, K. 2015. Correlation study among water quality parameters of groundwater of Valsad District of South Gujarat, India. Journal of Fundamental and Applied Sciences 7(3):340-349.

Sylus, K.J. and Ramesh, H. 2018. Geostatistical analysis of groundwater quality in an unconfined aquifer of Nethravathi and Gurpur river confluence, India. Modeling Earth Systems and Environment 4:1555-1575, doi:10.1007/s40808-018-0488-z.

Ukah, B.U., Ubido, O.E. and Igwe, O. 2020. Geostatistical assessment of the soil quality and its influence on groundwater pollution in some part of Lagos State Nigeria. Modeling Earth Systems and Environment 6:953-965, doi:10.1007/s40808-020-00731-y.

Vasanthavigar, M., Srinivasamoorthy. K., Vijayaragavan, K., Ganthi, R.R., Chidambaram, S, Anandhan P., Manivannan, R. and Vasudevan, S. 2010. Application of water quality index for groundwater quality assessment: Thirumanimuttar sub-basin, Tamilnadu, India. Environmental Monitoring and Assessment 171:595-609.

Wagh, V.M., Panaskar, D.B. and Muley, A.A. 2017. Groundwater suitability evaluation by CCME WQI model for Kadava River Basin, Nashik, Maharashtra, India. Modeling Earth Systems and Environment 3:557-565, doi:10.1007/s40808-017-0316-x.

WHO. 2011. Guidelines for drinking- water quality, 4th ed. World Health Organization. stream/10665/44584/1/9789241548151_eng.pdf.

Wilcox. L.V. 1955. Classification and use of irrigation water. USDA, Circular, Washington, p 969.

Xiaomin, G., Yong, X., Shiyang, Y., Qichen, H., Honglu, L., Zhongyong, H., Geping, M., Qiuming, P. and Huijun, Y. 2018. Hydrogeochemical Characterization and Quality Assessment of Groundwater in a Long-Term Reclaimed Water Irrigation Area, North China Plain. Water 10(9):1209, doi:10.3390/w10091209.

Xing, L., Huang, L., Hou, X., Yang, L., Chi, G., Xu, J. and Zhu, H. 2018. Groundwater hydrochemical zoning in inland plains and its genetic mechanisms. Water 10(6):752, doi:10.3390/w10060752.

Yazdanpanah, N. 2016. Spatiotemporal mapping of groundwater quality for irrigation using geostatistical analysis combined with a linear regression method. Modeling Earth Systems and Environment 2:18, doi:10.1007/s40808-015-0071-9.








How to Cite

Arota, A., Atlabachew, A., Abebe, A., & Jothimani, M. (2022). Groundwater quality mapping for drinking and irrigation purposes using statistical, hydrochemical facies, and water quality indices in Tercha District, Dawuro Zone, Southern Ethiopia. Journal of Degraded and Mining Lands Management, 9(2), 3367–3377.



Research Article