The objectives of this project were to i) identify areas of high water potential to strengthen the Drinking Water Supply (DWS) Abou Deia cities, Bitkine, Mangalmé, Melfi, Mongo and Oum Hadjer and ii) improving pastoral and agricultural conditions basement areas of central Chad (Guera region, including Oum Hadjer north-east and Abu Deia area east) by techniques of groundwater recharge and soil regeneration.