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Elango, L.
- GIS Based Groundwater Quality Assessment of Vattamalaikarai Basin, Tamil Nadu, India
Abstract Views :148 |
PDF Views:2
Authors
Affiliations
1 Deptt. of Civil Engineering, K. S. Rangasamy College of Technology, Tiruchengode-637 215, T. N., IN
2 Department of Civil Engineering, Government College of Engineering, Salem-636 011, T.N., IN
3 Department of Geology, Anna University, Chennai-600 025, T.N., IN
1 Deptt. of Civil Engineering, K. S. Rangasamy College of Technology, Tiruchengode-637 215, T. N., IN
2 Department of Civil Engineering, Government College of Engineering, Salem-636 011, T.N., IN
3 Department of Geology, Anna University, Chennai-600 025, T.N., IN
Source
Nature Environment and Pollution Technology, Vol 7, No 4 (2008), Pagination: 585-592Abstract
A detailed GIS based study on hydrochemistry of groundwater in Vattamalaikarai Basin, Tamil Nadu, India has been carried out to assess the quality of groundwater for determining its suitability for drinking purpose. Further, the spatial variation of various groundwater quality parameters over the basin has also been studied for January 2008. The area is underlained by crystalline rocks of peninsular gneissic complex, comprising of hornblende-biotite-gneiss and charnokite. Black, alluvial, and calcareous soils are major soil types in this region. Fifty nine groundwater samples spread over the basin have been collected from open and tube wells during January 2008. The physicochemical parameters have been compared with the standard guideline values as recommended by the WHO for drinking and public health. The abundance of major ions in groundwater is in the following order: Na+ > Mg2+ > Ca2+ > K+ = Cl- > SO42- > HCO3- > NO3- > CO32-. TDS widely varied from 124 to 4270 mg/L with an average value of 1422 mg/L, and at 24 locations it exceeds the maximum allowable limit of 1500 mg/L leading to unsuitability of groundwater in nearly 40% of the total basin area. TDS exhibits good positive correlation with Na+, Mg2+ and Cl-. Groundwater of the basin belongs to hard to very hard water category since the total hardness (TH) exceeds the permissible limit of 500 mg/L prescribed for drinking water. Nitrate concentration in groundwater also widely varies from 0 mg/l to 647 mg/L with an average value of 125 mg/L. Forty four well samples out of 59 exceed the maximum allowable limit of 45 mg/L (60% of the total basin area). Fluoride is also high (> 1.5 mg/L) in groundwater at 17 locations, which may cause dental fluorosis.Keywords
Vattamalaikarai Basin, Groundwater Quality, Hydrochemistry, Drinking Water, Spatial Variation, GIS.- Assessment of Water Quality in Kalpakkam Region, Tamil Nadu
Abstract Views :150 |
PDF Views:2
Authors
C. Sivakumar
1,
L. Elango
1
Affiliations
1 Department of Geology, Anna University, Chennai-600 025, T. N., IN
1 Department of Geology, Anna University, Chennai-600 025, T. N., IN
Source
Nature Environment and Pollution Technology, Vol 7, No 4 (2008), Pagination: 687-691Abstract
Assessment of water quality in a region is important as water is used for domestic and agricultural purposes. In most parts of south India groundwater is used extensively for domestic and agricultural purposes. The aim of this study was to assess the water quality of Kalpakkam region based on the major ions. Geologically, this study area has two distinct formations: crystalline charnockite rocks of Archean age and quaternary/recent sediments. The quaternary/recent sediments, weathered and fractured crystalline charnockite function as an unconfined aquifer system. The hydrogeochemical characteristics of water and its quality were studied from physico-chemical analysis of the water samples. Two characteristic facies were determined based on the results of hydrochemical analyses: (1) Na-Cl and (2) Ca- Mg-Cl facies are dominant in this region. Groundwater from the study unit is generally good for drinking purposes. However, samples from some wells exceeded drinking water standards established by the BIS for EC, TDS, sodium, chloride and sulphate ions.Keywords
Groundwater, Hydrochemical Analyses, Water Quality, Drinking Water Standards, Piper Classification.- Spatial Variation of Groundwater Quality and Inter Elemental Correlation Studies in Lower Bhavani River Basin, Tamil Nadu, India
Abstract Views :117 |
PDF Views:1
Authors
Affiliations
1 Department of Civil Engineering, Kongu Engineering College, Erode-638 052, T. N., IN
2 Department of Civil Engineering, Government College of Engineering, Salem-636 011, T. N., IN
3 Department of Geology, Anna University, Chennai-600 025, T. N., IN
1 Department of Civil Engineering, Kongu Engineering College, Erode-638 052, T. N., IN
2 Department of Civil Engineering, Government College of Engineering, Salem-636 011, T. N., IN
3 Department of Geology, Anna University, Chennai-600 025, T. N., IN