A Drinking and Irrigational use Assessment of Groundwater in Part of  Thirumanimuthar Sub Basin (Cauvery), Tamil Nadu, India.

N. VIJAYAKUMAR

Volume : III, Issue : VII, July - 2014

A Drinking and Irrigational use Assessment of Groundwater in Part of Thirumanimuthar Sub Basin (Cauvery), Tamil Nadu, India.

N. Vijayakumar

Abstract :

The objective of this paper is to document and evaluate the groundwater quality of part of Thirumanimuthar sub basin (Cauvery) during May 2013. The analysis was conducted for the upper part of the watershed. During pre-monsoon season of 2013, thirty two representative groundwater samples were collected from dug and bore wells. These samples were analyzed to monitor the water chemistry of various ions, comprising Ca, Mg, Na, K, CO3 , HCO3 , SO4 and Cl. The hydro geochemical values were compared with WHO 2004 standards. The other geochemical parameters like TDS, EC, SAR, Kelley�s ratio SSP and Mg. hazards were also determined. The above given parameters were calculated and used to find out the suitability of groundwater for drinking and Agricultural purposes. The USSL and Piper Trilinear Diagram interpretation were made to know the irrigational quality and facies of groundwater. It reveals that, the subsurface water is medium to high salinity in nature and falls in the Ca-Mg-CO3 type.