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Sri Lanka Journal of Aquatic Sciences
Uma Oya, which has the highest watershed of the Upper Mahaweli discharges into Rantambe reservoir. Uma Oya may have been polluted as it drains a large portion of agricultural lands. A preliminary study was conducted from April to October, 2007 sampling six randomly selected sites to determine the status of water quality of Uma Oya as baseline data. pH, water temperature, dissolved oxygen, electrical conductivity and turbidity were measured in situ, whereas the processed water samples weredoi:10.4038/sljas.v20i2.7476 fatcat:gpda3blktnegnf6mhgrbvhpnzi