A COMPARATIVE STUDY ON SOME PHYSICO-CHEMICAL CHARACTERISTICS OF DRINKING WATER IN RANGIA SUBDIVISION, ASSAM, INDIAM. CH. BAISHYA, R.M. DEKA, B. K. BARUAH AND A.K. MISRAAbstract The present paper deals with the comparative study on some physico-chemical characteristics of drinking water survey in Rangia subdivision, Assam. During the present investigation the drinking water samples were collected from tube wells, municipality water, deep tube wells and ring wells. The study recorded that the water samples were colour less and odour less and the pH, water temperature was found in the range of 6.70-7.93 and 20.40c-330c respectively. Similarly the recorded value of other parameters were as follows, turbidity (1.4-7.5 NTU), Conductance (105.2-1325.2 m mho cm-1), Total alkalinity (84-125 mgL-1), iron (0.1-2.3 mgL-1), total hardness (31-198 mgL-1), Calcium (6.3-32.12 mgL-1), Magnesium (3.32-20.75 mgL-1), Chlorine (30.2-205.2 mgL-1) and Fluoride (0.01-1.1 mgL-1). The study also revealed that most of the water samples showed higher concentration of iron and so purification is required before consumption as drinking water. The pH, turbidity, conductivity, total dissolved solids, iron, chlorine, calcium and magnesium value of ring wells water were found high in comparison to other water samples (i.e., -tube wells, municipality water supply, deep tube wells). Therefore the study recommended that the ring well water is not suitable for drinking without proper treatment.
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