Mechanisms of Groundwater Pollutants Transport in Tulkarm Area / Palestine

This study aims at investigating the mechanisms of pollutants transport based on geological formations. The study classifies two sub-aquifers groups. The first group are wells which dogged within Senonian Abu Dis formation, and are mostly used extensively for municipal purposes. The second group are wells dogged with the most top Jerusalem-Hebron formation of Turonian age and mostly used frequently for irrigation purposes. The first group shows a high deteriorated water quality with ionic molar ratios bears the ratios from Wastewater stagnant in adjacent Zomar stream. The stream bed lays directly over Jerusalem formation which promotes the pollutant transport directly to the uptake zone. However, the effect of such stagnant become less in dilution time of winter. Septic tanks surrounded these wells are constructed within the top 5 meters of Senonian formation, which mean that the leakage from septic tanks is not that ease to significantly affect the groundwater quality. The second group are mostly subjected to direct rainfall infiltration this can be indicated through the higher Sodium values which are related to the ion exchange through limestone profile. The results emphasize the need for further procedures to mitigate the pollutants plume migration from Wadi to the surrounded environment.