Hydrological Status of Katraj Lake, Pune, (Maharashtra), India

Lake water samples were collected for the study of physico-chemical status of Katraj Lake. For such assessment the water quality parameters like water temperature, pH, dissolved oxygen, biological oxygen demand, chemical oxygen demand, total hardness, chloride, calcium, magnesium and Nitrate were analyzed during December 2016 to December 2017. Samples were collected from selected site of the lake. The analysis was done based on the standard methods. The results indicate that most of all the parameters were within permissible limits for potable water standards of WHO except water temperature & pH. Throughout the study period water was alkaline in nature. Chloride showed positive relation with water temperature. Water temperature showed high significant negative correlation with dissolved oxygen. Nitrate showed negative correlation with most of all parameters except water temperature. It also showed significant negative correlation with total hardness. Only total hardness showed significant monthly variation.