Abstract: It is well known fact that clean water is absolutely essential for healthy living. Adequate supply of fresh and clean water is a basic need for all human beings and also for aquatic life, yet it has been observed that millions of people world wise are deprived of this. Clean water being a prime concern in many communities across the globe. This project demonstrates the study of water quality assessment of Deepor Beel during non monsoon season (October- March). Water samples has been collected from eight different sites around Deepor Beel to perform different physical-chemical laboratory test to know the quality of water. Moreover main aim was to find out the water quality index and preparation of spatial distribution map using QGIS. With the reference of this test results water quality index is calculated. Water samples of Pamohi, Boragaon and Chakradeo are fall in class IV category of pollution scale during non monsoon season, while other samples fall in class III of pollution scale. Class IV pollution means very polluted and class III pollution represents slightly polluted.

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| DOI: 10.17148/IARJSET.2022.9537