Evaluation of Groundwater Quality in Shallow and Deep Aquifers in Parts of Uttatra Kannada District, Karnataka
Journal Title: INTERNATIONAL JOURNAL OF RECENT TRENDS IN SCIENCE AND TECHNOLOGY - Year 2014, Vol 11, Issue 1
Abstract
The present study is aimed at assessing the groundwater quality in shallow and deep aquifers in parts of Uttatra Kannada district, Karnataka. This has been determined by collecting 49 groundwater samples from dug wells (shallow aquifer) and 49 bore wells (deeper aquifer) in the year 2011 (May). The physical and chemical parameters such as (pH), Total dissolved salt (TDS) and Total hardness (TH) were measured in addition to major cation and anion concentration of groundwater samples collected from the shallow and deep aquifer in parts of Uttatra Kannada district, Karnataka. The usefulness of these parameters in predicting groundwater quality characteristics were discussed. Result shows the ground waters of both aquifers is found to be alkaline in nature and are suitable for drinking purposes. The important constituents that influence the water quality for irrigation such as Electrical Conductivity (EC), Total Dissolved Solids (TDS), Sodium Adsorption Ratio (SAR), Sodium percentage (Na%), Residual Sodium Carbonate (RSC) were assessed and compared with their respective standard limits. Most of the samples fall in alkaline earths (Ca+Mg) exceeds alkalies followed by strong acids exceeds weak acids as per pipers trilinear diagram. The plotting of SAR values in USSL diagram indicate that all the samples have low SAR and occurred within C3-S1 category. These categories are suitable for irrigation purposes. Plotting different graphical presentations such as US salinity laboratory’s, Wilcox diagram and % of Na used for evaluating the water quality for irrigation purposes. An overview of all the ground water samples of the study area indicates that they are suitable for drinking, irrigation purposes except for few locations which exceed the permissible limits.
Authors and Affiliations
Manjunatha S , Davithuraj J.
Keywords
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