Editing Hydrogeology of Senegal

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==Hydrogeology==
 
==Hydrogeology==
  
This section provides a summary of the hydrogeology of the main aquifers in Senegal.  More information is available in the references listed at the bottom of this page. Many of these references can be accessed through the [http://www.bgs.ac.uk/africagroundwateratlas/archive.cfm Africa Groundwater Literature Archive].
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This section provides a summary of the hydrogeology of the main aquifers in Senegal.  More information is available in the references listed at the bottom of this page. Many of these references can be accessed through the [http://www.bgs.ac.uk/africagroundwateratlas/index.cfm Africa Groundwater Literature Archive].
  
 
The hydrogeology map on this page shows a simplified overview of the type and productivity of the main aquifers at a national scale (see the [[Africa Groundwater Atlas Hydrogeology Maps | Hydrogeology map resource page]] for more details).  
 
The hydrogeology map on this page shows a simplified overview of the type and productivity of the main aquifers at a national scale (see the [[Africa Groundwater Atlas Hydrogeology Maps | Hydrogeology map resource page]] for more details).  
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||Groundwater depletion occurs locally due to overabstraction
 
||Groundwater depletion occurs locally due to overabstraction
 
||High iron, fluoride and salinity seen in the central western part of Senegal. Saline intrusion in the coastal areas.
 
||High iron, fluoride and salinity seen in the central western part of Senegal. Saline intrusion in the coastal areas.
||Recharge occurs from direct rainfall and indirectly from rivers, and is estimated at about 103 x 10<sup>6</sup> m³/a to the Maastrichtian deeper aquifer system. This is mainly recharged in the western central part in Diass horst where formations outcrop, and at the contact with the basement formations and the unconsolidated formations in southeastern part of Senegal.
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||Recharge occurs from direct rainfall and indirectly from rivers, and is estimated at about 103 x 10^6 m³/a to the Maastrichtian deeper aquifer system. This is mainly recharged in the western central part in Diass horst where formations outcrop, and at the contact with the basement formations and the unconsolidated formations in southeastern part of Senegal.
 
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