Published Paper Details:

The Groundwater is major source for the people who works in different parts of works like irrigation, Domestic & Industrial parts, etc. So specially in coastal regions, there are some effects on the Groundwater due to sea water intrusion. Now a days, SWI is major environmental issue all over the world. These salinity concentration in groundwater may harmful for plants and animal that use it. Present study aims to analyses that how much effects should be done on the ground water by the nearer Sea water course. There are many reasons of SWI, but major factor is increasing the rate of pumping water from groundwater and decreasing rate of groundwater recharge. The aquifer zone in the study region are essential contributor sources of drinking water and irrigation water for agriculture needs. Present study uses the MODFLOW tool and Hydro-chemical method for the study of Sea water impact detailing in Groundwater in Bhavnagar district of Gujarat. From the literature study it is sensible that MODFLOW is best to study Seawater Intrusion because it is easy of applicate with effective inputs and accurate outputs. The MODFLOW is used for the creating, running and processing of Seawater Intrusion based model. The ground water samples are collected from 42 wells from different villages of Bhavnagar coastal area. Based on the well location and water sample, the study is carried out by making numerical model in MODFLOW and chemical analysis. Numerical model is generated in MODFLOW tool by putting Recharge, Drainage, Evapotranspiration value as an input parameter. From the model, it can be seen that SWI occurs in the coastal region at the rate of 3400-4500 cm2/day varies in village to village. In Hydro-chemical analysis EC, TDS, pH parameters have been checked for study. In more than 54% of well, EC value is exceeding 2250 ?mhos/cm and TDS concentration in more than 60% of wells is greater than 2000 mg/l and pH value of all the sample is lies between 7.1 to 8.5. So, these result shows that due to Sea water Intrusion, nearer groundwater is contaminated, its quality reduced and it is not suitable for any use.