Current World Environment

Chemical behaviors of groundwater in various locations are one of the most dynamic fields of research in the present world. In the present study, groundwater sampling from four industrial areas viz. Matsya Nagar, Bhiwadi, Neemrana and Behror was conducted with an aim to assess the groundwater chemistry and the interpretation of the ‘water type’ was made using Hill-Piper and Wilcox diagrams. The chemical quality was assessed by examining the major cations, anions and other parameters like sodium adsorption ratio, residual sodium carbonate and sodium percent. The groundwater chemistry was then assessed and factors affecting the area were identified. It was resulted that the groundwater quality of the area was influenced by industrial and human activities which cause pollution in the aquifer system and the data supported the pollution level in the area. Majority of the samples were behaved in more or less same way.

The TDS were found in average range of 1000 mg/l, while total hardness ranged the average value of 400 mg/l. Carbonate alkalinity was found in all the water samples and the average pH value were observed 8.60. In some locations, up to 337 mg/l nitrate indicates the nitrogenous contamination in the area. Fluoride was found within the prescribed limits as per BIS (Indian Drinking Water Standard, IS: 10500, 1991) norms, except one significant location at Majri Kalan in Neemrana industrial area has high fluoride as 13.0 mg/l. The interpretation of the ‘water type’ was made using Hill-Piper and Wilcox diagrams. The prominent type was Na/Mg-HCO₃ and Na/Mg-Cl type of water. However, a slight variation was observed in the Na-HCO₃ type of water. Sodium (alkali) hazard were observed from low (S1) to high (S3) and salinity hazard is high (C3) to very high (C4).