IJEP 45(3): 240-248 : Vol. 45 Issue. 3 (March 2025)
Nitesh Kumar Sahu1, Mridu Sahu1, Mayank Shrivastav2, D.C. Jhariya2* and Chandan Kumar Singh3
1. National Institute of Technology, Department of Information Technology, Raipur – 492 010, Chhattisgarh, India
2. National Institute of Technology, Department of Applied Geology, Raipur – 492 010, Chhattisgarh, India
3. National Institute of Technology, Department of Civil Engineering, Raipur – 492 010, Chhattisgarh, India
Abstract
Water scarcity is a critical issue in Ladakh’s Leh district, India, exacerbated by climate change and rapid infrastructure development. This study investigates hydrological dynamics in the developing region of Leh district, Ladakh. Urbanization, infrastructure expansion and seasonal peaks in tourism intensify pressure on the water resources and living standards. Untreated wastewater discharge into soak pits or septic tanks poses risks to groundwater integrity, especially in densely populated areas. Given inadequate groundwater and surface water monitoring infrastructure and unregulated water deployment, assessing water quality is crucial. The study encompasses three villages (Nang, Mood, Stakmo) and Leh city, employing physico-chemical assessments covering parameters, such as pH, sodium, potassium, temperature, total dissolved solids, alkalinity and chlorides. Among the 19 samples analyzed, only a marginal proportion met desirable thresholds for pH, chloride and total dissolved solids, while sodium content was within acceptable limits across 15% of samples and all samples exhibited suitable potassium levels. Notably, 60% of samples displayed deviations from normative ranges. Subsequent computations of the water quality index (WQI) revealed that 84% of water samples achieved an excellent quality rating, with 10% classified as good and the remaining 6% categorized as poor. Overall, the findings indicate that groundwater in study area is predominantly suitable for potable consumption, notwithstanding localized quality concerns.
Keywords
Hydrological dynamics, Urbanization impact, Tourist activity, Wastewater discharge, Groundwater integrity, Physico-chemical assessments, Water quality index, Normative ranges
References
- Foto, M.S., et al. 2011. Spatial evolution of the diversity of benthic macroinvertebrate populations in an anthropized river in a tropical environment (Cameroon). European J. Sci. Res., 55(2): 291-300.
- WHO. 2021. Drinking water. World Health Organization, New Delhi.
- Tampo, L., et al. 2015. Application of statistical methods to the hydrochemical study of the waters of a tropical hydrosystem: Case of the Zio river watershed (Togo). european sci. j., 11(14).
- Dolma, K., M.S. Rishi and R. Herojeet. 2015. Baseline study of drinking water quality? A case of Leh town, Ladakh (J and K), India. Hydrol. Curr. Res., 6(1): 2-6.
- Khan, M. 2024. Ladakh. In The territories and states of India 2024. Routledge. pp 392-399.
- Dar, S.N., et al. 2019. Identification of suitable landfill site based on GIS in Leh, Ladakh region. GeoJ., 84: 1499-1513.
- Khan, R. and D.C. Jhariya. 2017. Groundwater quality assessment for drinking purpose in Raipur city, Chhattisgarh using water quality index and geographic information system. J. Geol. Soc. India. 90: 69-76.
- Dolma, K., M.S. Rishi and R. Lata. 2015. Evaluation of groundwater quality and its suitability for drinking purposes- a case of Leh town, Ladakh (J and K), India. Int. J. Sci. Eng. Res., 6: 576-590.
- APHA. 2012. Standard methods for the examination of water and wastewater (22nd edn). American Public Health Association, Washington, DC.
- APHA. 1999. Standard methods for the examination of water and wastewater. 2540- Solids. American Public Health Association, USA.
- APHA. 1999. Standard methods for the examination of water and wastewater. 2550- Temperature. American Public Health Association, USA.
- APHA. 1999. Standard methods for the examination of water and wastewater. 4500-Cl- Chlorine (residual). American Public Health Association, USA.
- APHA. 1999. Standard methods for the examination of water and wastewater. 3500-Na- Sodium. American Public Health Association, USA.
- APHA. 1999. Standard methods for the examination of water and wastewater. 3500-K- Potassium. American Public Health Association, USA.
- APHA. 1999. Standard methods for the examination of water and wastewater. 2320- Alkalinity. American Public Health Association, USA.
- Gondhalekar, D., et al. 2013. Water-related health risks in rapidly developing towns: The potential of integrated GIS-based urban planning. Water int., 38(7): 902-920.
- Horton, R. K. 1965. An index number system for rating water quality. J. Water Poll. Control Fed., 37(3): 300-306.
- Brown, R.M., et al. 1972. A water quality index-crashing the psychological barrier. In Indicators of environmental quality. Springer, Boston. pp 173-182.
- House, M.A. 1990. Water quality indices as indicators of ecosystem change. Env. Monit. Assess., 15: 255-263.
- Madhusudhan, M.S., et al. 2024. Groundwater quality evaluation using water quality index (WQI) under GIS framework for Mandya city, Karnataka. Sustain. Water Resour. Manage., 10(1): 21.
- Gautam, V.K., et al. 2024. Groundwater quality characterization using an integrated water quality index and multivariate statistical techniques. Plos one. 19(2): e0294533.
- Ghosh, M.K., S. Ghosh and R. Tiwari. 2013. A study of water quality index assessment of groundwater and pond water in Sirsakala village of Bhilai-3, Chhattisgarh, India. Int. J. Civil Struc. Env. Infrastruc. Eng. Res. Develop., 3(5): 65-76.
- Kumari, S. and J. Rani. 2014. Assessment of water quality index of groundwater in Smalkhan, Haryana. Int. J. Latest Res. Sci. Tech.,3(6): 169-172.
- Kalavathy, S., T. R. Sharma and P. Sureshkumar. 2011. Water quality index of river Cauvery in Tiruchirappalli district, Tamil Nadu. Arch. Env. Sci., 5: 55-61.
- Kujiek, D.C. and Z.A. Sahile. 2024. Water quality assessment of Elgo river in Ethiopia using CCME, WQI and IWQI for domestic and agricultural usage. Heliyon. 10(1).
- Dovoedo, Y.H. and S. Chakraborti. 2015. Boxplot-based outlier detection for the location-scale family. Communications Statistics-Simulation computation. 44(6): 1492-1513.
- Walker, M.L., et al. 2018. An improved boxplot for univariate data. American Statistician. 72(4): 348-353.
- Hoaglin, D.C. and B. Iglewicz. 1987. Fine-tuning some resistant rules for outlier labelling. J. American Statistical Asso., 82(400): 1147-1149.
- Dawson, R. 2011. How significant is a boxplot outlier? J. Statistics Education. 19(2).
- Dastjerdy, B., A. Saeidi and S. Heidarzadeh. 2023. Review of applicable outlier detection methods to treat geomechanical data. Geotechnics. 3(2): 375-396.
- IS 10500. 2012. Drinking water- Specification. Bureau of Indian Standards, New Delhi.