this would represent a water use saving of about in total household indoor water consumption for instance in atlanta messages such as we need to start looking at the glass as half empty and don t wait until the tap runs dry are spread in a video public service announcement beside rebates for two types of waterefficient purchases the metropolitan water district of southern california also proposes a webpage wwwbewaterwisecom with water saving tips information on public education program designed to educate californians on the state s water challenges or technical information with visual support on the water reserve levels these impacts differ depending on the water source groundwater or surface water however if managed in a sustainable way groundwater extraction can continue to aid regional economic development in particular in many arid or semiarid parts of the world in italy for example the latter has taken place due to excessive abstraction massarutto