Asian Journal of Research in Chemistry

G. Srinivas Rao ¹, G. Nageswara Rao ²

Affiliations
1 Department of Chemistry, GITAM Institute of Science, GITAM University, Visakhapatnam – 530 045, A.P., IN
2 School of Chemistry, Andhra University, Visakhapatnam – 530 003, IN

Abstract

Fifty sampling stations have been identified and water samples were collected from June 2006 to May 2007, to know the Water Quality Index for the groundwater of Greater Visakhapatnam city, The samples were analyzed for the physico-chemical parameters like Temperature, pH, Conductivity, Total dissolved solids, Dissolved Oxygen, Hardness, Calcium, Magnesium, Alkalinity, Chloride and Nitrate. The Water Quality Index has been calculated and it has been identified to be in the range 31 to 306. Salt water intrusion has also been assessed using various parameters.

Keywords

Ground Water, Water Quality Parameters, Water Quality Index, Salt Water Intrusion.

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G. Srinivas Rao ¹, G. Nageswara Rao ²

Affiliations
1 Department of Chemistry, GITAM Institute of Science, GITAM University, Visakhapatnam – 530 045, IN
2 School of Chemistry, Andhra University, Visakhapatnam – 530 003, IN

Abstract

Water samples were collected from 14 open wells, 34 bore wells and two reservoirs to study the ground water quality of Greater Visakhapatnam city. The samples were analyzed for the parameters like Temperature, pH, Conductivity, Total dissolved solids, Dissolved Oxygen, Hardness, Calcium, Magnesium, Nitrate, Sodium, Potassium, Chloride and Alkalinity. Low ionic concentrations in ground waters far (7-14 km distance) from the sea coast were observed which are within the permissible limits of WHO and ISI standards. Ground waters close to the sea coast i.e. one to two kilometers distance (60 to 150 feet depth) have high values of Conductivity, Total dissolved solids, Hardness, Chloride, Calcium, Magnesium, Sodium and Potassium which are not in permissible limits.

Keywords

Ground Water Quality, Visakhapatnam, Salt Water.

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