Changes

|heading2=Drought effects on cement|heading2text2='''Effects of drought''': Badly made concrete and cracked linings (e.g. in tanks). <br>'''Underlying causes of effects''': Less water used for curing; Impure water used for mixing. <br>'''To increase resiliency of WASH system''': Ensure adequate mixing, ratios, purity of ingredients; Minimize water content in mixture; Ensure adequate curing.|heading3= Floods|text2text3= Spreading basins are perfect for areas with floods. They are built to transfer excess water away from rivers, so that uncontrollable floods don't happen in unwanted places. However, in the event of too much flooding, the spreading basin must be large enough to handle the increased volumes of rain. Plus, with intense rain events, the higher velocities might be too much for the soil of the basin and create a washed out effect or likely just runoff before infiltrating. In this case, additional vegetation enhancement (to help the soils absorb more water), wetland enhancement, levee protection, and/or additional water storage will be helpful.