WATER QUALITY ANALYSIS OF MAAN STREAM (HIMACHAL PRADESH), INDIASANDEEP KUMAR AND DEVENDRA PAL SINGH
Maan stream is located at 31O 45.708N; 76 O 20.532 E in district Hamirpur (Himachal Pradesh), India. It originates from Barsar area of this district and joins the river Beas near Kohla village in Nadaun area. Hareta, Bumblu and Maseh khad are the important brooks joining this stream. This stream is 40 Km long and has catchment area is approximately 183.5 sq. km. It is perennial stream. The stream flows roughly in North-North West (NNW) direction showing a number of hairpin bends. This stream traverses through rocks comprising middle and upper Shivalik region of Himalayas. Physicochemical parameters of this stream, which is a tributary of river Beas, were studied for water quality analysis, during March 2019 to February 2020. The stream was divided in to six sampling sites for this purpose. Physico-chemical parameters were studied during the summer, winter and monsoon seasons. These parameters were compared with the standard permissible limits prescribed by BIS (2012). These parameters were within the permissible limit except calcium hardness at some of the sites.