Editing Urban groundwater in Africa

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[[Africa Groundwater Atlas Home | Africa Groundwater Atlas]] >> [[Additional resources | Resource pages]] >> [[Key Groundwater Issues | Key groundwater issues]] >> Urban groundwater in Africa
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[[Africa Groundwater Atlas Home | Africa Groundwater Atlas]] >> [[Additional resources | Resource pages]] >> Urban groundwater in Africa
  
   This page is being developed. Please check back soon for more content.
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   '''This page is being developed. Please check back soon for more content.'''
 
 
 
 
Please cite page as: Africa Groundwater Atlas. 2019. Urban groundwater in Africa. British Geological Survey. Accessed [date you accessed the information]. ''Weblink''.
 
  
  
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This page provides some background on the issue of urban groundwater and links to more information.  
 
This page provides some background on the issue of urban groundwater and links to more information.  
 
 
  
 
==Key issues in urban groundwater in Africa==
 
==Key issues in urban groundwater in Africa==
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===Over-abstraction of groundwater===
 
===Over-abstraction of groundwater===
  
As urbanisation continues, the demand for water is increasing in urban areas. This demand is being partially met by municipal piped water supplies. Where urban areas have easy access to highly productive aquifers, municipal supplies may be at least partially sourced from groundwater within or near urban boundaries. If municipal abstraction is greater than recharge, it this can lead to localised falling groundwater levels.
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As urbanisation continues, the demand for water is increasing in urban areas. This demand is being only partially met by municipal piped water supplies. Where urban areas have easy access to highly productive aquifers, municipal supplies can be at least partially sourced from groundwater. If municipal pumping is greater than recharge, it this can lead to localised falling groundwater levels
  
Because in most towns and cities in Africa, municipal piped water supplies aren't keeping pace with demand, more and more urban residents are turning to 'self supply' from groundwater sources. This involves digging or drilling private domestic wells or boreholes. Urban community water supplies may also be sourced from boreholes or wells. These boreholes and wells tend to be shallow. As well as being vulnerable to contamination, such shallow aquifers can also be vulnerable to over-abstraction, if too much groundwater is pumped out. The result can be serious localised aquifer depletion, which may lead to boreholes and wells drying up if groundwater levels fall too far; and also brings risks of inducing seepage of contaminated water, or saline intrusion in coastal areas; and can also cause land subsidence (Foster 2018).  
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Because in most towns and cities in Africa, municipal piped water supplies aren't keeping pace with demand, more and more urban residents are turning to 'self supply' from groundwater sources. This involves digging or drilling private domestic wells or boreholes. Urban community water supplies may also be sourced from boreholes or wells. These boreholes and wells tend to be shallow. As well as being vulnerable to contamination, such shallow aquifers can also be vulnerable to over-abstraction, if too much groundwater is pumped out. The result can be serious localised aquifer depletion, which may lead to boreholes and wells drying up if groundwater levels fall too far; and also brings risks of inducing seepage of contaminated water, or saline intrusion in coastal areas; and can also cause land subsidence (Lapworth et al. 2017).  
  
  
==References==
 
  
This is a list of some recent reports and other documents that give a useful overview of the issues around urban groundwater in Africa.
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==Overviews of urban groundwater in Africa==
  
:- UPGro. 2021. [https://upgro.files.wordpress.com/2021/07/upgro_policybrief_urban-domestic-gw-use-in-ssa.pdf Urban domestic groundwater use in informal settlements in subSaharan Africa: A call to action]. UPGro Policy Brief, UPGro, Skat Foundation, St. Gallen.
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The following lists some recent reports and other documents that give a useful overview of the issues around urban groundwater in Africa.
  
 
:- Foster S, Bousquet A and Furey S. 2018. [https://doi.org/10.2166/wp.2018.056 Urban groundwater use in Tropical Africa – a key factor in enhancing water security?]. Water Policy 20(5), 982-994. Doi: 10.2166/wp.2018.056
 
:- Foster S, Bousquet A and Furey S. 2018. [https://doi.org/10.2166/wp.2018.056 Urban groundwater use in Tropical Africa – a key factor in enhancing water security?]. Water Policy 20(5), 982-994. Doi: 10.2166/wp.2018.056
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Return to: [[Africa Groundwater Atlas Home | Africa Groundwater Atlas]] >> [[Additional resources | Resource pages]] >> [[Key Groundwater Issues | Key groundwater issues]] >>
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Return to: [[Africa Groundwater Atlas Home | Africa Groundwater Atlas]] >> [[Additional resources | Resource pages]]  
  
  

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