Abstract
Groundwater is a significant and crucial component for all development activities of any life support system. In this study, the hydrochemical analysis and water quality index method (WQI) were used to assess groundwater quality for drinking purposes. Twelve groundwater samples were collected and analyzed into fourteen parameters which were considered as important indicators for assessing groundwater quality. A comparative study of these parameters with that of the Chinese Groundwater Standard (GB/T14848-2017) was conducted. It can be depicted from the results that groundwater quality is categorized as very hard, fresh water and slightly alkaline in nature. The major sequence of dominant cations and anions in groundwater are Ca2+ > Mg2+ > Na+ > K+ and HCO-3 > SO2-4 > Cl- respectively. From the total 12 samples analyzed, the parameters of TH, NH+4, Fe and Mn of samples exceeded the limits set by (GB/T14848-2017) standard. Piper diagram illustrated that groundwater samples of the studied area are mostly of Ca-Mg-HCO3-SO4 type. WQI showed all samples fall between excellent to good category of water and suitable for drinking purposes. The quality of groundwater is mainly affected from anthropogenic activities and natural influence. The proposed method is reliable and effcient for groundwater pollution assessment and can be used in decision-making.
Highlights
Groundwater is essential for providing water supplies to rural and urban communities in many countries of the world [1, 2]
The groundwater is slightly alkaline in the study region with an average pH of 7.47
According to [16, 17], the groundwater quality of all samples is categorized into fresh water (TDS) and very hard (TH)
Summary
Groundwater is essential for providing water supplies to rural and urban communities in many countries of the world [1, 2]. The anthropogenic activities are deteriorating the water quality due to the disposal of domestic and industrial wastewater into rivers through the sewer systems and extensive use of fertilizers, pesticides in agriculture [4, 7]. These factors are representing the major role in causing the deterioration of groundwater quality through different chemical components, leading changes in the quality of the pumped water and suitability for human utilization. The measurement of the water quality parameters is necessary to compare with declared water quality standards in order to protect public health [10]
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