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Sidi Mokhtar EL KANTI

Dear visitors, It is with great pleasure that I welcome you to our platform dedicated to the planning, management, and preservation of water resources in the Sakia el Hamra and Oued Ed-Dahab Hydraulic Basin.


In this basin, each drop of water holds an invaluable value. We face unique and complex challenges: the scarcity of surface water resources coupled with the degraded quality of available groundwater resources…

Action Zone

Zone of Action of the ABHSHOD

The operational area of L’ABHSHOD includes eight (8) provinces:

Provinces of Tarfaya, Laayoune, Smara, and Boujdour, in the Laayoune-Sakia El Hamra region.

Provinces of Aoussard and Oued Eddahab, in the region of Dakhla-Oued Eddahab.

Provinces of Tan-Tan and Assa-Zag, in the Guelmim-Adnoun region.

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40% of the national territory's surface area.

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According RGPH 2014

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Regions: Dakhla-Oued Eddahab, Laayoune-Sakia El Hamra, and Guelmime Oued Noun.

Water Resources In the Sakia El Hamra and Oued Eddahab Basin

Surface water mobilizable

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Groundwater mobilized

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Presentation of the basin.

Sakia El Hamra and Oued Eddahab Basins

Due to the aridity of the climate, the watersheds of the Sahara have very limited surface runoff. Groundwater constitutes the main mobilizable water resources, although largely of a fossil and non-renewable nature.

In terms of surface water, the most important hydrological basin is Sakia El Hamra, which covers an area of 81,000 km².

The rest consists of poorly individualized diffuse networks, due to the almost horizontal topography, infrequent precipitation, and high evaporation.

The hydrogeology of the region is characterized by the presence of two distinct aquifer domains: the sedimentary domain, which includes the majority of the region’s groundwater, and the crystalline basement domain, which can contain limited but highly valuable water flows for supplying water to the area.

This domain is composed of Precambrian or Paleozoic rocks that occupy the eastern, southeastern, and northern zones of the basin. It lacks widespread aquifers and water circulation is limited to fracture zones and riverbeds. Water is generally encountered at shallow depths with low flow rates and is of good to moderate quality.

This domain occupies the western part of the basin, along the Atlantic Ocean. It covers an area of approximately 110,000 km² on the continent and extends under the sea. It is relatively rich in widespread underground water reservoirs. The scarcity of precipitation results in little or no recharge of the aquifers.

Isotopic analyses confirm that the majority of groundwater infiltrated more than 5,000 years ago, and therefore, these aquifers are considered fossil.

Technical opinion on investment projects

To request the technical opinion of the agency on an investment project, it is essential to provide the necessary documents:


Topographic plan with coordinates

Extract from the cadastral plan of the land title

Project plan

Certificate of ownership

The study fees for the file

Board of Directors
Basin Council
Organizational chart
Action zone of the Agency
Presentation of the agency
Director’s word
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On the occasion of World Water Day celebrations, the Hydraulic…

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