Laserfiche WebLink
C� <br />.7 <br />Graphic: A future of water shortages? I StarTribune.com <br />Log In I Register I My account I Subscribe Digital Home delivery I eEdthon Search , Al content Business listings search <br />StarTribune 1 news graphics <br />News Local Sports Business Politics Opinion "Lifestyle Entertainment obituaries classifieds Autos Housing Jobs <br />e <br />News Graphics <br />Graphic: A future of water shortages? <br />Graphic by: MARK BOSWELL and RAYMOND GRUMNEY updated: February 23, 2013 - 10:51 PM <br />Page 1 of 2 <br />At current rates of use the Prairie du Chien - Jordan aquifer, a major source of drinking water for the Twin Cities area, could be partly <br />depleted in some places by the year 2030. Areas shown in red would face 50 percent depletion, the level at which state regulators <br />would impose limits on water use by homeowners and cities. The Metropolitan Council has developed three scenarios of "groundwater <br />drawdown" showing how local aquifers would be depleted under various projections of water use. <br />a Rec n 15 Twee! B <br />inside the StarTribune <br />Rain and snow provide waterthat is stored as groundwater <br />and in deep aquifers. It is used by plants and trees, and lost <br />through evaporation, down rivers and by the slow migration of <br />water underground. <br />Evaporation <br />In urban areas, humans <br />have altered that cycle <br />with hard surfaces like roofs <br />and parking lots, causing <br />more water to rare off. They <br />also use groundwater for <br />homes and industry, which iF <br />them treated and sent <br />dow nstrca m. <br />water <br />&ain tiling <br />- - i <br />corrintercial <br />we& <br />Y Agricultural <br />irrigation uses <br />about a third of all the <br />groundwater in the state, <br />and is growing. Pattern <br />0 In rural <br />tiling, which removes <br />areas, increased -- <br />surface water from <br />industrial use like ethanol <br />agricultural fields, also <br />production and large livestock <br />slows the replenishment <br />operations are also using more <br />of aquifers. <br />groundwater. <br />httrr// www .startribune.cem /newsgranhics /19253765 Lhtm1 <br />Urban <br />environments <br />Rivets <br />irmpaded <br />af�nolp><oilutlon <br />S(AllC? I)$ (ie::J�t�al }'lI1VlY <br />MARK BOSwF.II +Star Tribunr <br />2/27/2013 <br />