Two hundred and ten one day old Arbor Acres chicks were obtained and divaded into seven treatments. each of 30 chicks. Chicks of each treatment were subdivided into three replicates, 10 chicks each . The experiment was extended up to seven weeks of age. Three sources of heavy metals: Lead (Pb), Cadmium (Cd) and Arsenic (As) were used in forms of chlorides. Two levels of each element were applied to meet three -fold and six -l'old of their high concentration allowed in tap water as measured and reported by Egyptian Ministry of Health and Population. Polluted water by lead , cadmium and arsenic at both levels caused decreased body weight and feed intake of chicks at 4 and 6 weeks of age. While there were no effects of these metals on feed conversion. Birds consumed the highest level of PbCIz by level 300 ppm presented the lowest (F'<0.05) values of water consumption during the whole experimental period compared with other treatments and control Obtained results indicated that the heavy metal consumption increase linearly with advantage of age and increasing the level of contamination. The linear decrease in serum total lipids; and increases of triglycerides. GOT and GPT in blood serum were observed by increasing the pollutiOn MWL