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=== Groundwater use===
 
=== Groundwater use===
 
 
The total groundwater resource in Mali is estimated at 2.7 trillion m³. The level of groundwater exploitation, primarily for drinking water supply, is considered to be low: it is estimated to be 66 billion m³. Groundwater is largely exploited by boreholes and large diameter wells, of which there are an estimated 15,100 boreholes and 9,400 large diameter wells (information from National Water Directorate (DNH) for 2003).
 
The total groundwater resource in Mali is estimated at 2.7 trillion m³. The level of groundwater exploitation, primarily for drinking water supply, is considered to be low: it is estimated to be 66 billion m³. Groundwater is largely exploited by boreholes and large diameter wells, of which there are an estimated 15,100 boreholes and 9,400 large diameter wells (information from National Water Directorate (DNH) for 2003).
  
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The Ministry of Environment and Sanitation, through the Department of Sanitation, Pollution, and Nuisance Control, is responsible for all legislation related to sanitation standards and pollution.  
 
The Ministry of Environment and Sanitation, through the Department of Sanitation, Pollution, and Nuisance Control, is responsible for all legislation related to sanitation standards and pollution.  
  
There are two main national databases of groundwater supply points: one for boreholes (approximately 19,000 in 2008) and one for hand dug wells (approximately 10,000 in 2008). No geological log information for the boreholes is available, but there is good information on rest (static) groundwater levels in boreholes and hand dug wells. Information on major inorganic groundwater quality parameters, measured at the time of drilling, is also recorded.  
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There are two main national databases of groundwater supply points: one for boreholes (approximately 19,000 in 2008) and one for hand dug wells (approximately 10,100 in 2008). No geological log information for the boreholes is available, but there is good information on rest water levels in boreholes and hand dug wells. Information on major inorganic groundwater quality parameters, measured at the time of drilling, is also recorded.  
  
 
=== Groundwater monitoring===
 
=== Groundwater monitoring===

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