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An investigation was carried out in the Bahour commune of Pondicherry with a view to characterize the ground waters and characterization of irrigation water to develop management strategies to overcome the effect of poor quality water on soil and crop growth. Water samples were collected from 100 randomly selected wells during the summer seasons of 2010 - 13 and analyzed for their ionic composition. The results of the analysis of ground waters of Bahour region had shown that out of the 100 wells, the water samples from 98 % of the well waters were dominated by sodium ion and the chloride to bicarbonate ratio indicated that 68 wells were found to be intruded with sea water. The classification of bore well waters based on EC and SAR had revealed that 64 % under medium salinity medium sodicity. The electrical conductivity (EC) of the well waters ranged from 0.30 to 5.13 dS m-1 with a mean value of 1.48 dS m-1 . The pH ranged from 7.04 to 8.87. By considering the different classifications available under the various indices, it was concluded that the well waters of Bahour region was mostly saline with little sodicity hazard. | Characterization of irrigation water and extent of sea water intrusion in ground water of pondicherry Coastal region India
