Abstract
The assessment of the quality of groundwater in Rapur area of Nellore District has been carried out with an objective to determine the hydrogeochemical validity. A total of 30 samples of groundwater were collected from wells occurring in the study area. The analyzed physicochemical parameters such as pH, electrical conductivity, total dissolved solids, silica, calcium, magnesium, sodium, potassium, bicarbonate, carbonate, sulfate, and chloride are used to characterize the ground-water quality and its suitability for drinking and irrigational uses. Based on the analytical results, chemical indices like sodium absorption ratio (SAR), adjusted SAR, percent sodium (Na %), potential salinity, residual sodium carbonate (RSC), permeability index (PI), chloroalkaline indices, Kelly’s ratio, magnesium ratio and Gibbs ratios have been calculated. Chadha rectangular and diagram for geochemical classification and hydrochemical processes of groundwater indicated that most of the waters are Na-Cl and Ca-Mg-Cl types. The Gibb’s plot indicates that the groundwater chemistry of the study area is mainly controlled by rock-water interaction.
Highlights
Land and water are critical natural resources that sustain human life and the lives of all other creatures on our planet
The groundwater in the study area is falling under fresh (TDS < 1000 mg/l) types of water (Freeze and Cherry, 1979)
The overall quality of waters in the study area rules out any pollution from extraneous sources
Summary
Land and water are critical natural resources that sustain human life and the lives of all other creatures on our planet. Groundwater is one of the primary sources of water for human consumption, agriculture and industrial uses in Rapur area. Determination of physical and chemical quality of water is essential for assessing its *. How to cite this paper: Nagaraju, A., Muralidhar, P. and Sreedhar, Y. Assessment of Rapur Area, Andhra Pradesh, South India. The quality of groundwater depends on the composition of recharge water, the interaction between the water and the soil, the soil-gas interaction, the rock with which it comes into contact in the unsaturated zone, the residence time, and reactions that take place within the aquifer [1]-[5]
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