Abstract: “Groundwater resources of Saudi Arabia are depleting at a very fast rate due to the high water supply withdrawing. Natural renewable and recharging of groundwater are done through infiltration of rainwater which are not enough in Saudi Arabia. Partially treated wastewater is used as an artificial method for recharging the groundwater. A high degree of upgrading can be achieved in Soil Aquifer Treatment (SAT) system by allowing partially treated sewage to infiltrate into the soil and move down to the groundwater. The paper uses the criteria of the existing wastewater treatment plant of Tabuk city for recharging the plant effluent into the groundwater. This study reviews many recent researches in the field of the SAT systems and their application. The reviewing of the previous study in the field of the SAT included the required wastewater characteristics, existing groundwater conditions, quality and usages of groundwater, and existing soil conditions and their suitability for a SAT system”

Keywords: Soil Aquifer treatment; Effluent wastewater characteristics; Conditions and quality of groundwater