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<br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />I <br />I <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />Anifi('j"J Recharge of Ground Water in Colorado <br />A Statewide Asst'ssmt'nt <br /> <br /> , Manage Water , AQ'uifer -:1 Environmental <br />Manage Meet Legal I- <br />Water Supply. Ob!i.9i:!!!On!? I Q~~lity. Restoration I Protecticln <br />T I I i I <br />Supply AugmentationJ Surface Water Restore Endangered <br />Regulation Replace Quality Water Levels Species Habitat <br /> Depletions Improvement \ I <br />Seasonal I I Reduce Wetland <br />Storage In-State Ground Water Subsidence Maintenance <br /> Downstream Quality I I <br />Long-Term Obligations Improvement Saltwater Contaminant <br />Storage <br /> Intrusion Plume Control <br />Emergency Interstate Disinfection <br />Supply River By-product <br />Compact Reduction <br />Conjunctive Obligations I <br />Use Waste Water <br /> Disposal <br />Fioure 111-1 Obiectives of llftrl'icial recharne <br /> <br />~htnal!(' \"31("1"" Supph' <br />AR is utilized as a component Of\\'3tcr supply regardless of whether the waler is lIsed for <br />municipal. agricultural. or industrial uses. The objectives can be further categorized as follows: <br /> <br />. Water stlpply regulation - Surface-water supplies arc highly variable with discharge <br />rales varying on a daily. '\leekly. monthly or seasonal basis. Ground.,vater availabilily <br />is less variable and therefore. more reliable as a water source. AR into an aquifer <br />,\'ith subsequent extraction on a local basis evens out the variations of surface.,vater <br />delivery systems. <br /> <br />. Sellsofllll storage - As a more advanced foml of water supply regulation. water is <br />recharged when surface-water supply is plentiful. and recovered later in the year <br />when needed. Fi2ure 111-2 illuslrates Ihe seasonal imbalance between springtime <br />surf.1ce runolT supply and later water demand during Ihe summer months. Seasonal <br />storage can regulate water supply through the year. <br /> <br />8 <br />