Salt Water Intrusion and Delineation of Groundwater Quality at Coastal Aquifers

Abstract

Ground water quality changes or depleting day by day due to various contaminated substances presence in the environment and also other factors influences of excessive drawing of ground water, intrusion of septic sewage, improper dumping of solid waste disposal, untreated industrial effluents, sludge and waste water disposal without giving any treatment and also seasonal changes, etc., all are leads to decrease the quality and depth of ground water table, which leads to cause severe health issues like diarrhea, dysentery, digestive problems etc., on human life. In this contest an attempt has been made to find the ground water quality and also to know the level of contamination presents in Akividu area. About 16 number of ground water samples were collected, which covers the entire area of Akividu, by the estimation of ground water quality parameters includes pH, CO3 , HCO3 , NH3 , NO2 - , DO, Salinity, Hardness, Chlorine ,Total Alkalinity and Total Ammonia, during post monsoon months of October to November 2019. It was found that many of ground water samples have excess amount salinity and hardness and reaming parameters were in permissible range. All these accumulations of salinity (more than 0.5 ppm) and hardness (more than 600 ppm) may cause due to practices of aquaculture near and around the area of Akividu, and hence it is very necessary to done the periodical examination and also need to stop contaminate sources entering into nearby water bodies