![]() ![]() The chemical constituents of the water are affected by natural as well as anthropogenic factors. Therefore, it is of utmost importance to look after the groundwater resources on regular basis so that required action, if any, could be taken well in time. Being the largest user of the groundwater in the world, India fulfils its 85% drinking water needs and more than 60% of the irrigation requirements through groundwater resources. Declining surface water resources along with the increasing levels of pollution have rendered the use of groundwater mandatory in various parts of the globe. Periodic water quality assessment of surface and groundwater is necessary for the well-being of ecosystem in general, and for the human society in particular. Hydrochemical studies further inferred that groundwater properties in the region are influenced by the rock weathering along with the atmospheric precipitation. ![]() ![]() Overall, the groundwater quality was found suitable for drinking and irrigation purposes after conventional treatment. The presence of these contaminants could be attributed to the industrial activities in the state. Some of the samples also showed the presence of mercury, nickel, and cadmium. However, the study found that groundwater samples are having acidic pH and presence of nitrate is also reported. Minimal variation was observed in the water quality of pre- and post-monsoon seasons. Standard sampling and analytical procedures were followed for groundwater quality assessment. ![]() In order to make an assessment of the quality of groundwater for drinking and irrigation purposes, this study was carried out in Shillong-the Capital City of Meghalaya State in North-East India during pre-monsoon and post-monsoon seasons of 2018. However, there are very few studies focussing over the issue of groundwater quality in North-Eastern region of India. Deterioration of surface water quality in various parts of India due to increasing urbanization has led to the extensive usage of groundwater for various domestic and irrigation needs, thereby raising concerns over its quality. ![]()
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