Ground and surface water samples were collected from several sites in Aseer area, KSA. The ground water samples were collected from wells at depths between 20 and 95 m as shown in Table 1. The metal ion concentration in collecting samples are represented in Table 2. Water samples were collected by using plastic bottles (capacity 1.5 L), consequently acidified and kept at 5 8C. The samples were analyzed immediately after collection. The concentration of heavy metals was measured using atomic absorption spectroscopy.