Ground Water Analysis: A Case Study of Daman and Vapi Region

The objective of the present study is to analyzing groundwater of Daman and Vapi district which lie in coastal region of South Gujarat. In present study four years data of 32 wells of study area likes water level, TDS, pH, chlorine and EC were collected from GWRDC. The data analysis is carried out by three different ways .i.e. water level variation study, TDS analysis for sea water intrusion and computation of water quality index. To understand the variation of water level the analysis is carried out using SURFER 11 software. Apart from computing water quality index of all the wells using four years data ,TDS classification based on Caroll (1962) , Davis and Devil (1996) , WHO and BIS are carried out for all the wells of study area. The effect of rainfall on the water level and quality of water is also studied. The variation of decadal average water level trend is increasing and average water level with the distance from sea shore is decreasing for Daman and Vapi region.