Abstract
A field-cum-laboratory study was conducted to ascertain the quality of sub-surface water of North-Eastern Haryana, India. Thirty sub-surface-water samples were collected from the region during April 2017 and were analysed for hydro-chemical elements, analytical parameters and heavy metals. Presence of cations was found to be satisfactory at 86.67% of the locations while 93.33% samples were found to be in the acceptable range for anions. The analytical parameters of pH, TDS, TA and TH were found to be satisfactory in 100%, 60%, 80% and 76.66% of the samples, respectively. Eight sampling sites of the study area showed undesirable limits of one or more of the hydro-chemical elements. Location 23 (Matedi Bus Stand) has been observed to be adversely affected by excess of Ca2+, SO42−, TDS, TA and TH and is declared to be falling in the ‘Red Zone’. Seven sites are identified to be suffering from one element and hence are categorised to be falling in the ‘Grey Zone’. The classification of samples indicated that most of the samples fall in ‘Ca2+-Mg2+-HCO3--Cl-' hydro-chemical facies. Gibbs plot represented that sub-surface water quality variation is possibly attributed by rock-water interactions in groundwater. The study is expected to help the planners and officials of local bodies to take suitable remedial measures towards provision of safe drinking water to the people.
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