Keywords : Ground water, water quality standards, physico-chemical parameters, Water Quality Index.

Abstract : This study was intended to assess degree of hydrogeochemical contamination of the ground water in and around Godhra campus and the industrial estates. Beginning the financial year 2018-2019 up to the financial year 2020-2021, a comparative study was made to determine the underground well water quality. Surface water samples were obtained from selected stations in different war areas before and after two successive monsoon periods. It was established from the results that there was an equivalence of the pre and post monsoon pH values which reflected values of 6. 4 to 7. 95. Nevertheless, significant shift was recorded with regard to the TDS which varied between 393 and 640 mg/L. Other parameters like TH, Chloride, DO, COD and BOD remained almost unchanged and observed concentrations were observed in the range of 95-286 mg/L for TH and 8-52 mg/L for Chloride. 8-24 mg/L for Chloride, 6 iodine/VAC. 5 to 8. 1 mg/L for DO, 1. 2 to 2. 8 ‘mg/L for COD, and 0. 8 to 2. 9 mg/L for BOD. Nevertheless, the Electrical Conductivity or EC value has a large variation reaching from 779 to 1100 µS/cm. All the physicochemical parameters measured were within the acceptable limits set by the World Health Organization (WHO) and IS:15100 samples of groundwater compliance with Australian Standard 10500:2012 for drinking water implying that there was no chemical contamination by hazardous chemicals in the groundwater of the study area.

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