The most common and widespread danger, associated with Halali Dam water is contamintaion of heavy metal by sewage and other organic matters or excrements water of Halali reservoir is used for drinking as well as irrigational purpose, its water is polluted by man made activities e.g. sewage disposal industrial and natural contaminants mixes into water heavy metals viz. Cu Mn, Ni, Zn, Pb and Cd were analysed to evaluate the water quality index of Halali reservoir, contaminated heavy metals and sediments analysed on Perkin-Elmer Atomic absorption spectrophotometer (AAS). Model (2380). Water samples acidified on 2.0 pH with HNO3. In the present study Cu, Fe, Mn, Ni, Zn, Pb and Cd heavy metals are found in the range of 0.048-7.8, 0.020-0.64, 0.60-0.24, 0.08-0.98, 0.030-1.96, 0.18-0.98 and 0.008-5.78 ppm respectively. Silt Sediments has higher conentration of heavy metals.