In this study the sites near drains showed higher values than sites at the middle of Lakes or sites near the Lakes-sea connection which is characterized by low values of metals due to their presence far from direct drain discharge. This may be due to the area opposite to drains dominated by fine sediments and high in organic matter, while the middle region of the Lakes is dominated by sand fraction, calcareous deposits that are a mixture of sand-silt-clay, high in carbonate and low in organic carbon (Abdel-Moati and El-Sammak, 1997). This variation in the Lake's sediment was reflected on the metals distribution. This comply with Franc et al. (2005) who mentioned that sediments contain more sand and lower values of organic matter exhibit low metals enrichment. Also, the concentrations of heavy metals in sediment increase as the amount of organic material increase (Tsai et al., 2003). He also mentioned that the pollutant concentrations in sediments increased with decreasing the particle size in sediments. Sediment has certain limited capacity to absorb different ions from waters percolating through it. This capacity is lowest for carbonate-sandy fractions of sediments (Lake-sea area), and highest for clayey organic matter rich sediments.