Laserfiche WebLink
Artificial Recharge of Ground Water in Colorado <br />A Statewide Assessment <br />Table IV -1. Comparisons of Artificial Recharge Technologies (Cont'd) <br />27 <br />Active <br />Technology <br />Description <br />Colorado <br />Advantages <br />Limitations <br />Aquifer Suitability <br />Examples <br />Other <br />Detention Dams, Dikes <br />Engineered structures in the <br />Indian Hills <br />. Low O & M costs <br />• Very site specific <br />• Unconfined aquifers <br />and Weirs <br />channel of a stream to catch <br />• Environmental <br />with surface exposure <br />natural flow and enhance <br />concerns <br />• Alluvium <br />natural recharge <br />• Semi - consolidated <br />sediments at outcrop <br />• Highly fractured <br />bedrock <br />Ground -Water Dams <br />Structures in the aquifer that <br />• Do not necessarily <br />• Site specific and limited <br />• Unconfined aquifers <br />intercept or obstruct natural <br />require outside source <br />to shallow aquifers with <br />with surface exposure <br />ground -water flow <br />of water <br />small cross - sectional <br />0 Alluvium <br />• Low O & M costs <br />areas. <br />• Low evaporation losses <br />• High construction costs <br />for larger, deeper <br />aquifers. <br />Adits /Shafts/Natural <br />Allow water to flow into <br />Leyden Coal <br />0 High recharge rates <br />0 Vulnerability to <br />0 Abandoned coal and <br />Openings <br />cavern or mine using open <br />Mine <br />contamination <br />metal mines, caverns <br />shaft <br />. Site specific <br />• Karst <br />• Caverns <br />27 <br />