Assessment of physico-chemical characteristics of ground water quality of some areas of Imphal West district of Manipur during monsoon - 2nd phase

摘要

Thirteen (13) ground water samples were collected from the hand pumps of different sampling sites located within Imphal West district of Manipur during monsoon of 2014. They were analyzed for physico-chemical parameters such as temperature, pH, TDS (total dissolved solids), electrical conductivity (EC), total alkalinity (TA), CO3~(2-), HCO3~-, total hardness (TH), Ca~(2+), Mg~(2+), Na~+ and Cl~-. In case of ground water (S-12) of Wangdei Meitei Leikai, Langol, the values of all the physico-chemical parameters are within the desirable limits of BIS standards for drinking water as well as that of WHO and it is found to be fit for drinking from physico-chemical analyses point of view. However, in case of other remaining twelve (12) ground waters (S-1 to S-11 and S-13), the values of total alkalinity are beyond desirable limit (200mg/L) but below the permissible limit (600 mg/L) of BIS standards for drinking water. Again in case of ground water represented by S-2, the concentration of Mg~(2+) is beyond the desirable limit (30mg/L) but below the permissible limit (100mg/L) of BIS standards for drinking water. So, such ground waters (S-1 to S-11 and S-13) may also be used for drinking purpose in absence of alternate sources. However, some suitable treatments are necessary so as to keep the values of total alkalinity for ground waters S-l to S-11 and S-13 and concentration of Mg~(2+) for ground water S-2 within the corresponding desirable limits of BIS standards for drinking water.