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Drinking water program for the people of the Tadla plain and the phosphates plateau aims to secure in the short, medium and long- term the services of 1080,000 inhabitants, of which 530,000 are in rural areas. This program covers Tadla’s "central Morocco" treatment station with a flow rate of 1600 L/second, a demineralization station of 330 L/second and a 15000 m3 reservoir that is continuously fed. The raw water from the Ait Massoud dam undergoes several treatments at the station before being distributed in the drinking water circuits, including conventional treatment with its various stages (settling, coagulation, flocculation, and decantation) and bilayer filtration. Some of these treated waters then pass through the reverse osmosis to undergo demineralization. The demineralized waters are remineralized by lime water and are mixed with the filtered waters of the conventional station. The water produced at that station meets the requirements of the Moroccan standard NM 03.7.001 and the WHO guidelines, in addition a pH of 8 to 8.5; turbidity less than 0.3 NTU 95% of time and less than 0.5 NTU 5% of time; chlorides are less than 400 mg/l; iron, aluminum, and other components shall not exceed the maximum permissible values.