Assessment of Groundwater Quality Resulting from Managed Aquifer Recharge of Treated Sewage Effluent, Wadi Fatimah, Saudi Arabia

The disposal of treated sewage effluent (TSE) has acted as a recharge to the underlying shallow alluvial aquifer of Wadi Fatimah located in the western part of the Kingdom of Saudi Arabia. The aquifer recharge has significantly modified the groundwater chemistry of the aquifer. Thirteen groundwater samples were analyzed to assess the groundwater quality of the aquifer and to determine the irrigation potential of using the TSE mixed groundwater. The results show a significant reduction in the total ions as a result of mixing of TSE with groundwater thus improving the agricultural potential of groundwater of Wadi Fatimah.