The El Khairat wadi was dammed in order to improve the water resources management of El Khairat plain by increasing the surface water mobilization and using the stored reservoir water mainly for artificial groundwater recharge. Reservoir-type conceptual modelling was used to estimate the groundwater recharge over periods pre and post-dam construction. The comparison of the aquifer recharge in natural and artificialized regimes allowed to assess the artificial recharge efficiency. The mean groundwater recharge by the El Khairat wadi calculated over the period prior to the dam construction (1984–1997) is 10.5\(\times\)10⁶ m³/year, corresponding to a mean infiltration rate equaled to 17% of the annual rainfall. The median value is 5.6\(\times\)10⁶m³/year. After the dam construction, the annual recharge averaged over the period (2002–2015) is 2.8×10⁶ m³ corresponding to an infiltration rate varying between 40% and 80% of the released water. In spite the high infiltration rate, this average value is low in comparison with the natural recharge, due to the absence of regular artificial recharge campaigns. In post-dam construction, the artificial recharge rate slightly exceeded the renewable groundwater resources only in 3 years. The initial piezometric state observed in the late 1970s is not restored although the impact of artificial groundwater recharge operations is perceptible in piezometers situated in the close vicinity of the wadi. Regular recharge operations by releases with a flood discharge rate of around 75 l/s are recommended to ensure high yield of the artificial groundwater recharge and accordingly good management of groundwater resources.

为了增加El Khairat平原的水资源管理，通过增加地表水动员和将存储的水库水主要用于人工补给地下水，对El Khairat旱谷进行了修建。使用水库类型的概念模型来估算大坝建设前后的地下水补给量。在自然和人工条件下对含水层补给的比较可以评估人工补给效率。大坝建设前（1984-1997年）计算的El Khairat wadi地下水平均补给量为10.5 \（\ times \） 10 ⁶ m ³ /年，相当于平均入渗率等于水库的17％。年降雨量。中位数为5.6 \（\ times \）10 ⁶ m ³ /年。大坝建成后，该时期（2002-2015年）的年平均补给量为2.8×10 ⁶ m ³对应的渗透率在所释放的水的40％到80％之间变化。尽管渗透率很高，但由于没有定期进行人工补给，因此该平均值与自然补给相比仍然较低。在大坝建设后的三年中，人工补给率仅略高于可再生地下水资源。尽管在靠近旱谷的测压仪中可以察觉到人工地下水补给操作的影响，但1970年代后期观察到的初始测压状态并未恢复。为了保证人造地下水补给的高产量并因此对地下水资源进行良好的管理，建议定期进行泄洪补给，泄洪率约为75 l / s。