## 4 Results and Discussion
### Impact of the Structural Context on Hydrogeological Potential  
The impact of faults on hydrogeological groundwater potentialities was carried out through a comparison of data from 199 wells executed in the study area. The fault's effect on groundwater availability is most evident in Figure 10a. More than 80% of the positive wells are located in areas with high fracture density values. The highest flow rates of these wells are found in the Tioughza and Larba-Mesti areas, characterized by the combination of high lineament density and good permeability of the formations (Figure 10a,b). The lithological map of the Ifrin inlier comprises formations composed of the Quaternary complex of high permeability comprising mainly alluvial deposits representing 18.72% of the surface. The area is dominated by crystalline formations (granitoid and granite), volcano-detrital with conglomerates, dolomitic limestones, and quartzite sandstones presenting a permeability of fractures, occupying 81.28% of the area (Figure 10b). Figure 10: Superposition of the fault network and water points on the faults/lineament density (**a**) and permeability map (**b**) of the Ifrin inlier. Wells with positive yields are generally located along rivers and faults in alluvial, granitic, and volcano-sedimentary formations. Boreholes with very high flow rates are mainly located in the southern, eastern, and northeastern plains, particularly at the intersections of the river system and the main hydrogeological faults affecting the Ifni inlier. Indeed, groundwater accumulation zones are formed where the main hydrogeological faults intersect the hydrographic network. These zones, which have high permeability, generally extend over granitic formations, volcanic sedimentary formations, granitic sands, and alluvial plains, and can be a crucial source of water for wells. The Tangarfa spring, with a flow rate of 16 L/s, is an excellent example as it emerges in the contact zone between volcanic and carbonates rocks (fracture permeability), facilitated by a network of NE-SE and NW-SE oriented faults (Figure 10b). High flow rates mainly encircle the tributaries of the main river and the faults. The Larba-Msti well and The Mesti Spring, with respectively high discharge rates of 8.33 L/s and 5.66 L/s, exemplify the synergistic effects of multiple favorable factors for groundwater infiltration. Their occurrence in highly permeable alluvial deposits, situated above a well-developed hydrographic network that interconnects with fault systems, highlights the complex interplay of lithological, hydrological, and structural controls on groundwater flow dynamics. A study conducted by [PERSON] [8] on granitic and granodiorite formations in the vicinity of the city of Sidi Ifni involved 15 boreholes. This study showed a positive correlation between the presence of water and fracture levels at different depths [8]. Specifically, fracture levels have been observed at different depths and have been associated with the presence of groundwater in granitic and granodioritic rock. The measured flow rates revealed a high variability and reached significant levels (up to 3 L/s) in some cases (Figure 11, Table 1), similar to those obtained in other study areas [5; 6; 7; 87]. However, boreholes drilled on the slopes of bare mountains, ridges, and hills with steep slopes and high runoff revealed low flows. These areas are characterized by low fracture permeability of the igneous formations, poor surface drainage, and low lineament density. This study revealed varied results in terms of water flow rates depending on the geological and topographical characteristics of each area.