Changes

Subsurface harvesting systems

90 bytes added, 00:14, 6 June 2012

→‎Resilience to changes in the environment

'''Underlying causes of effects''': Less recharge of aquifer due to less rainfall; Increasing population & water demand; Size of aquifers – e.g. limited sand volume; Too much silt accumulates behind dam; Wells not sunk deep enough into water table; Incorrect siting causes leaking dams. <br>

'''To increase resiliency of WASH system''': Competent siting & construction; Build sand dam in stages to reduce silt; Soil & water conservation techniques in upper part of catchment; Dig abstraction wells/pipes deeper.

 

More information on managing drought: [[Resilient WASH systems in drought-prone areas]].

==Construction, operations and maintenance==

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