In the management of water resources, quality of water is just as important as its quantity. The main aim of this study has been to assess the variability of groundwater parameters to develop water quality of Tirupati area and its suitability for domestic and irrigation purpose. Further, the samples were analyzed for pH, EC, TDS, carbonates, bicarbonates, alkalinity, chlorides, sulfates, hardness, fluoride, calcium, magnesium, sodium, and potassium. Based on the analytical results, chemical indices like percent sodium, sodium absorption ratio (SAR), adjusted SAR, percent sodium (Na %), residual sodium carbonate (RSC) and permeability index (PI) have been calculated. Chadha rectangular diagram for geochemical classification and hydrochemical processes of groundwater indicated that most of waters are Ca-Mg-HCO 3 and Ca-Mg-Cl types. Assessment of water samples from various methods indicated that majority of the water samples are suitable for domestic and irrigation purpose.

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Abstract-The present study was intended to calculate water quality index (WQI) of Gudur area, Nellore district.Andhrapradesh.in order to ascertain to the quality of water for the public consumption, irrigation, agriculture, Recreation and other purpose In the present study area water samples were collected and analyses the different physico-chemical parameter such as P H , electrical conductivity, total dissolved solids, bicarbonate, chloride, sulphate, calcium, magnesium, sodium, potassium, alkalinity and total hardness of the water sample, determine the presence of the quantity levels in the 40 water samples. Based on that calculate the water quality index for the all samples. In this area the water quality ranges from 88.26 to 186.55.It represented the poor water quality based on water quality index in the study area.

This study's goal is to evaluate the Uddanam region's groundwater quality for drinking, agricultural use, and potential health risks to people, with a focus on nitrates. From the research region, 50 groundwater samples were taken in both pre- and post-monsoons and analyzed for pH, EC, TDS, TH, TA, Ca2+, Mg2+, Na+, K+, CO3, HCO3−, Cl−, SO42−, NO3−, F−, and Si, among other physic-chemical parameters, TDS, total hardness, nitrates and silica are the highest ions among all chemical parameters. May's findings indicate that kidney illness is a result of higher above said parameters. In addition, the chemical data intensity is represented using spatial interpolation techniques in Arc GIS 10.1 software, and intensity maps of the research region are prepared. The irrigation metrics salt absorption ratio (SAR), Kelley's ratio (KR), and percent sodium (%Na) are all within the research area's allowed limits.In the study area, pre and post-monsoon nitrate total hazard index (children, men, and women) affected percentages are 94%, 53%, 37% and 94%, 51%, 29% respectively, whereas the dermal there is no significant effect on the human body. The Gibbs diagram shows that the disintegration of rock formations is responsible for the groundwater chemistry and is further supported by scatter plots. Chemical elements are generated in the study due to geology such as Khondalite and alluvial soil disintegration. The excess silica percentage may lead to affect kidney-born disease in the study area and hence adequate water treatment is required prior to use.