摘要:Aptness of groundwater in the Mamam river basin for drinking and other domestic purposes were assessedin the present work. Eighty six groundwater samples were collected in pre and post monsoon seasons andrequired physico-chemical attributes were determined. Results revel that most of the parameters except thepH were within the permissible limits recommended by BIS. However, abnormally low pH values were observedin the study area, as evidenced by a mean pH of 5.34 in post and 5.35 in pre monsoon seasons, indicatingacidic character. Reasons for this abnormal phenomena include widespread occurrence of subsurfacelaterite aquifer system, presence of coconut husk retting yards, open waste dumping and extensive rubbercultivation. Consumption of this water is a definite threat to people causing gastrointestinal disorders, hyperacidity, ulcers, stomach pain and burning sensation. Besides this, pH below 6.5 can cause corrosion inpipes resulting in the release of toxic metals.