Study of some heavy metal ions in the groundwater at Assiut- Egypt is an essential ingredient for a healthy. The measured ions and water quality parameters such as: (pH, conductivity, salinity , turbidity, Dissolved Oxygen (DO) ,NO2 ,NO3, NH3, SO4 -2, Ca+2, Mg+2 , Pb+2 , Cd+2 , Ni+2, Cu+2, total Fe, Mn+2, total Cr and Total Hardness (TH) were carried out on groundwater samples at different localities in Assiut city and some countryside, Egypt. Classifications of groundwater samples based on groundwater wells depth. Evaluation of the samples for different uses (drinking and domestic uses, irrigation and industrial purposes), saturation index (SI), and water quality index (WQI) indicated. A systematic calculation of correlation coefficients among was performed.