Salt water intrusion – A case study in Chintapalli, one of the coastal villages of Vizianagaram district of Andhra Pradesh

Author(s): G.V.S.R.Pavan Kumar, G.Bhuvan Kumar, B.Sreerama Murty

Chintapalli, a village and panchayat of Poosapatiregamandal ofViziangaram district was selected for the author’s present study. Ground water is the main water source of the village. Aquifer of the village cannot be charged properly due to lack of any river, lake or continuously flowing stream. The authors present work was aimed at the study of above source for different constituents such as calcium, magnesium, chloride, sodium, potassium, TDS, pH, conductance, DO and nitrite. Different samples were collected from four bore wells, one tap connected to water storage tank and open well. For such samples analyzed, the chloride ion concentration was found to vary from 80.5 mg/L to 936.9mg/L. The inference is the intrusion of sea water in to the fresh water aquifer of the village. The concentration levels of each of the constituent were compared with the standard values prescribed by ISI and ICMR and the authors found that almost all of the constituents were above the permissible limits, indicating sea water intrusion into water bodies of the village.

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