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46 <br />• Prairie du Chien -Jordan aquifer (left column) <br />• Water Table aquifer under sensitive surface waters (middle column) <br />• Tunnel City-Wonewoc aquifer (right column) <br />On the map: <br />• Green areas show areas where water levels are likely to rise compared to baseline 2010 pumping <br />conditions <br />• Blue-green areas illustrate places that are likely to experience relatively minor or no water level <br />decline <br />• Darker blue shows areas where water levels are likely to drop the most <br />• Yellow illustrates where confined aquifers are especially sensitive to water level declines and <br />where local monitoring, analysis and planning should be done to ensure that groundwater <br />pumping does not exceed safe yield conditions, as defined in Minnesota Rules (part 6115.0630) <br />These model results include some uncertainty, which is discussed later in this chapter. The regional <br />groundwater flow model, and the water demand projections it evaluates, provide useful information to <br />consider as part of regional growth planning; it is the best tool available to illustrate "the big picture" <br />pattern of aquifer decline that may occur if 2040 demand is supplied solely by currently (2015) planned <br />sources. <br />WATER SUPPLY MASTER <br />PLAN- Draft June 2015 <br />