الفهرس 
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Abstract
Based on surveys and chemical analyses, we performed a case study of the surface water and underground-water quality in El-Sharqia Governorate, in order to is monitoring of hazardous pollutants and implementing their impact on human health. A survey of El-Sharqia Governorate includes Ismailia Canal, El-Helwa canal, Bahr Moees and Bahr Faqoos, where our drinking water treatment plant site which subjected to our monitoring, programme 14 (DWTP), (Al-Rahmania, Alyabania, Al-abasa, Shaafora, Al-zagazig, Aboshalaby, Sangaha, Al-daidamona, Al-huria, Natora, Al-tahawia, Smakeen gharb, Al-qeneat, sahbara). The water samples were collected to determine the concentration of organic and inorganic compounds in (DWTP). The sample collected during 4 seasons (Spring, Summer, Autumn, Winter) in 2011. Physico-chemical parameters (turbidity, pH, electrical conductivity, total dissolved solids, total hardness, calcium hardness, magnesium hardness, alkalinity, chloride, nitrite, iron, manganese, calcium, magnesium, silica, residual aluminum, residual chlorine), and heavy metals (Nickel, Cadmium, antimony, Zinc, Copper, Lead, iron, magnesium) and organic parameter (trihalomethanes, haloacetic acid, total organic carbon, biooxygen demand BOD) were analyzed and some statistical analysis found that there are statistical significant between DWTP like Smakeen gharb, Al-daidamona, Al-huria, Al-qeneat, Al-tahawia, in (turbidity, pH, alkalinity, BOD, silica, chloride, and Lead), in the organic parameter (trihalomethanes, haloacetic acid and 1,2-dibromo3-chloropropane) record high concentration in Summer > Spring > Autumn > Winter.