Results of physico-chemical parameters are
shown in Table 1. The data indicated that pH and
TSS of all the samples collected from tube wells,
dug wells, hand pumps and springs were found
within the permissible limits. Similarly chloride
concentrations (4.7 to 173 ppm) in all samples were
also found within the permissible limits set by WHO
(2004). However hardness and alkalinity were found
above their respective permissible limits set by
WHO (2004) for the drinking water quality. The
hardness in majority of the samples was found above
the permissible limits with the highest concentration
of 798.8 ppm as noted in water samples from Cham
spring. Similarly alkalinity is also showing high
concentrations for Cham spring with value of 404
ppm. The maximum electrical conductivity (EC)
was found in the hand pump sample at Balawo (699
μS/cm). Salinity (0.01 to 0.03 ppm) in almost all
samples is showing no greater variation.