Uranium Corporation of India Limited (UCIL) has established a new uranium mining and milling facility at Tummalapalle which is under geological region of Cuddapah basin, Andhra Pradesh, India. A study is carried out to measure the background concentration of natural uranium and other physicochemical parameters in drinking water around Tummalapalle uranium mining and milling site. Drinking water samples were collected from 24 locations in Post monsoon (March-May) and Pre monsoon (Oct-Dec) seasons during 2010-11. PH, EC, Salinity and TDS were analyzed in-situ using Systronics water analyzer kit and uranium concentration was estimated using Laser Flourimeter at Nuclear Fuel Complex, Hyderabad. The uranium concentration varied from 3±1 µg/l to 29±5 µg/l and was below the drinking water guideline value of 30 µg/l set by WHO. The correlation studies between the analyzed parameters were also carried out.
