ABSTRACT
Present study is aimed to assess the hydrochemical characteristics of ground water in north eastBhilwara, Rajasthan for drinking and other domestic purposes. In order to evaluate hydrochemical characteristics of ground water 120 samples were collected and analyzed for various parameters such as Colour, Odour, Taste, Temperature, Turbidity, pH, TA, F–, NO3–, SO4-2, TDS, Cl–, TH, EC, Ca-H, Mg-H, CO3-2, HCO3–, Ca+2, Mg+2, Na+, K+, DO, COD, BOD and Trace metal ions and these parameters were used to evaluate hydrochemical characteristics. The Piper’s trilinear diagram showed that in groundwater alkaline earth’s (Ca+Mg) exceeded alkali (Na+K) in 100 %, strong acid anion (Cl+SO4) exceeded in 55 % and weak acid anion exceeded (HCO3+CO3) in 45 % sampling stations. The composition of ground water is found Ca-Mg type, Ca-HCO3 type, Ca-Cl and mixed cation and anion type, and alkaline (pH), fresh to brackish (TDS), good to doubtful (EC), hard to very hard (TH), fresh to brackish (Chloride), good to very poor (WQI), corrosive in 38.33 % samples (CR), dominance of cation-anion exchange reactions (CAI), and have anionic nature with good ionic balance (-10% to10%) in 37.5 % samples (IB). The abundance of major cations and anions is in order Ca+2 > Na+ >Mg+2 >K+ and HCO3–> Cl– > CO3-2> SO4-2 > N O3–.
