Authors : P. A. Pisal and S. B. Hivarekar
Page Nos : 261-267
Description :
The assessment of groundwater quality of the Chikurde basin (latitude 16054’N to 17005’N and longitude 74032’E to 74045’E) in Sangli District, Maharashtra, India was carried out.18 groundwater samples were collected and various physical and chemical parameters were carried out. The physico-chemical analyses of these water samples reveal that 100% groundwater samples represent Ca+Mg (alkaline earth) Alkaline earth (Ca+Mg) Exceed alkalies (Na+K) hydrochemical facies in pre and post-monsoon seasons. Similarly, 100% groundwater samples of pre and post monsoon seasons represent Cl+SO4 > HCO3+CO3 (strong acid exceeds weak acid) hydrochemical facies. There is no significant change in the hydro-chemical facies noticed during the study period (pre- and post-monsoon), which indicates that most of the major ions are natural in origin. On the basis of Gibbs diagram the chemistry of groundwater belongs to rock dominance in pre and post monsoon seasons. Based on the water quality parameters analyzed like SAR, SSP, MAR, PI and KR the suitability of groundwater samples for irrigation is good to medium in almost all cases, indicating low sodic waters, but may pose prominent alkaline hazard to soil reflected by the Residual Sodium Carbonate (RSC) values during post monsoon. All the parameters reveal higher concentration in groundwater in pre monsoon season than post monsoon season.
Keywords: Chikurde basin, groundwater quality, hydrochemical facies, parameters.
