Assessment of seasonalvariations in Calcium, Magnesium and Hardness of Lendi River, District Nanded, Maharashtra, India

Lendi River is one of the tributary of river Manar, originates at Malkapur dist. Latur and joins to river Manar at Degloor, dist. Nanded. Water of this Semi-perennial river is used to perform various activities such as industrial, irrigation, fisheries and human activities. Elements like Calcium, Magnesium are very important in aquatic ecosystem. They act as micronutrients for the growth and development of phytoplankton. Hardness of water is also important in potable water. Hence content of calcium, magnesium and hardness were estimated from July 2011 to June 2012.Average estimated value of Calcium, Magnesium and Hardness at Station No.-I is 33.7 mg/l, 15.9 mg/l, 182mg/l and Station No.-II is 35.1 mg/l, 17.5 mg/l and 184 mg/l respectively. Details of estimation of Calcium, Magnesium and Hardness are discussed in the text.