Study of Some Chemical and Physical Properties of Ground water in Zallah City

This study was conducted to evaluate the quality of well water in Zallah city, Libya, by analyzing the chemical and physical properties of water samples from four selected wells distributed across the region. The study was carried out from December 2022 to February 2023. For comparative analysis, the research adopted several international standards, including those from the World Health Organization (WHO) for pure water, the European Union's 1992 drinking water standards, the FAO irrigation water standards, and the American Salinity Laboratory's 1945 scale. Laboratory analyses revealed variations in water quality among the wells concerning elemental proportions and natural properties. Specifically, the study identified high salt content in some wells, varying concentrations based on geographical location. Furthermore, discrepancies were observed in ion values and turbidity levels. The overall findings indicated that the well water in the study did not conform to international standards for drinking water. The research concludes that the water is not suitable for direct human or animal consumption without prior filtering and purification. However, it was deemed suitable for agricultural and industrial uses after appropriate treatment.