Physicochemical analysis of ground water qualities of some areas of Imphal East and Senapati districts of Manipur during pre-monsoon
*Corresponding Author E-mail: email@example.com
Fifteen ground water samples (−1 to S-15) were collected from 14 hand pumps and 1 dug well of Imphal Easting pre-monsoon period (May) of 2016. They were analyzed for various mperature, PH, TDS (total dissolved solids), electrical conductivity (EC), total hardness (TH), Ca2+, Mg2+, Na+ and Cl–. Only S-9 (dug well of Fifteen ground water samples (S-1 to S-15) were collected from 14 hand pumps and 1 dug well of Imphal East and Senapati Districts of Manipur during pre-monsoon period (May) of 2016. They were analyzed for various physicochemical parameters such as temperature, PH, TDS (total dissolved solids), electrical conductivity (EC), total alkalinity (TA), CO32-, HCO3−, total hardness (TH), Ca2+, Mg2+, Na+ and Cl−. Only S-9 (dug well of OkshuMayaiLeikai) of Imphal East District is perfectly found to be fit for drinking purpose from physicochemical analysis point of view. However, other remaining ground waters (S-1 to S-8 and S-10 to S-15) may also be used for drinking purpose in absence of alternate sources. In case of S-1 to S-8 and S-10 to S-15, some suitable treatments are necessary so as to keep corresponding values of total alkalinity, total hardness and Mg2+ below their corresponding acceptable limits of BIS standard for drinking water. All the ground waters (S-1 to S-15) are also fit for other domestic and irrigation purposes.
Further, TDS shows strong positive correlatives with Na+, HCO3−, and Cl- but weak positive correlatives with Ca2+ and Mg2+. Again, TA shows strong positive correlations with TDS and EC. As Na+ shows strong positive correlation with HCO3−(r = 0.814), total alkalinity of such ground waters is mainly due to presence of NaHCO3. Total hardness of such ground waters is also mainly due to CaCl2 and MgCl2 as is evident from strong positive correlations of TH with Ca2+, Mg2+ and Cl−.
Physicochemical parameters, drinking, irrigation, pre-monsoon, BIS and correlation coefficient.