Spatial Distribution of Groundwater Quality Parameters in Gomai watershed, Nandurbar District, Maharashtra, India

Abstract

       Groundwater quality assessment study Gomai watershed of Nandurbar district, Maharashtra, India.   Assess the suitability of groundwater resources for the purpose of drinking and irrigation. Ninety five (95) representatives of pre-monsoon and post-monsoon dug well, bore well or tube well water samples were collected and analyzed for determining the geochemical variations and quality of groundwater in the study area. The spatial variation of groundwater quality was inferred. The physicochemical parameters, viz. temperature, total alkalinity, total acidity,   pH, EC, TDS, TH, Ca²?, Mg²?, Na?, K?, Cl?,  NO??, SO?²?, HCO?? were determined to assess the groundwater quality. For chemical analysis use methods of flame photometer, volumetric titration and spectrophotometer. The analyzed data of groundwater samples are compared with guideline guidelines of the World Health Organization and Bureau of Indian Standards. As per the WHO and BIS standards pH (61.05%) EC(71.51), Ca(62.10), Na(20%) samples of pre-monsoon ph( 11.57%), EC (71.57%), TH(24.21%), TDS(24.21%),  Ca(80%), Na(25.42%) samples of post-monsoon exceed the acceptance limits but all the groundwater samples are within permissible limit except few. Analyzed parameters of groundwater samples of pre-monsoon and post-monsoon are plotted on Piper diagram depicting majority of Ca_Mg_Na and Cl_HCO?. Maximum groundwater quality of Gomai watershed is “Good”.