CHEMICAL AND BACTERIOLOGICAL EVALUATION OF DRINKING GROUND WATER SUPPLIES IN ASSIUT CITY

Document Type : Research article

Authors

Abstract

Twenty five well water supplies located at Assiut city were chemi cally and bacteriologically evaluated. The bacteriological examination revealed the isolation of staphylococcus aureus (26%), E.coli (12%), Proteus spp < /strong>. (9%), Citrobacter spp. (20%) and Cl. perfringens (16%). The chemical analysis indicated the detection of Ammonia, Nitrite, Nitrate, Chloride, Potassium, Manganese, Copper, Ferrous, Zinc, with a mean value of 4.00, 0.4, 19.9, 73.57, 13.533, 0.466, 0.1, 0.4408, 0.137 sodium 38.318 and total soluble salts (323.168) mg/Lit respectively. The hygeinic significance and measures suggested for prevention of chemical and bacterial pollution of ground water supplies were discussed.