Abstract
Water is essential for both animal and plant kingdom and also for industrial, agricultural and domestic needs. Now a day the available surface water is not fulfilling the needs of human beings. Hence to meet the demand of water the Groundwater resources are tapped. Ground water is a good source of fresh water available on the earth. It is an important renewable resource having several inherent advantages over surface water. Its wide distribution, negligible evaporation loss and low risk of contamination are considered as important qualities of groundwater. Geochemistry of surface and ground water plays a major role for determining its chemical quality which is determined by mineral composition of aquifer through which water flows. In order to understand the groundwater chemistry. In order to understand the hydro geochemistry about 65 groundwater samples have been collected from bore wells during post monsoon season. The important parameters like pH, EC, TDS and major cations and anions were analysed. The pH and EC are varying from 6.4 to 8 and 307 to 4732 µs/cm. The TDS are varying from 146 to 2892 mg/l. The minimum and maximum chemical concentration of cations such as Ca, Mg, Na, K are 24 to 262 mg/l, 18 to 201 mg/l, 98 to 793 mg/l and 16 to 139 mg/l respectively. Similarly, the minimum and maximum concentration of anions like Cl, SO4, HCO3 and NO3 are 76 to 1282.8 mg/l, 0.8 to 4.8 mg/l, 248.8 to 1432 mg/l and 0.01 to 0.78 mg/l respectively. The data has interpreted with Diamond field of piper diagram to understand the water type, source of contamination and facies. The Gibbs plot interpretation favours the rock-water interaction and with minor representation in evaporation zone. The quality of water for irrigation was estimated by USSL plot. The suitability of water for its utility was verified using Indian and WHO standards. The result shows that most of the samples are suitable for drinking and irrigational purpose except few samples.
1503029 Hydro geochemical Study of Groundwater in Chinnar Sub-Basin of Vellar River