Groundwater recharge in urban areas |
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| Affiliation: | 1. Eawag: Swiss Federal Institute of Aquatic Science and Technology, Ueberlandstrasse 133, CH-8600 Dübendorf, Switzerland;2. University of Neuchatel, Centre for Hydrogeology and Geothermics (CHYN), Switzerland;1. Montana Bureau of Mines and Geology, Montana Tech of the University of Montana, 101 Grand Avenue, Billings, MT, 59101, USA;2. Department of Geography and Environmental Studies, University of Colorado Colorado Springs, 1420 Austin Bluffs Parkway, Colorado Springs, CO, 80918, USA;1. University of Arizona, Tucson, AZ 85721, USA;2. U.S. Geological Survey, Denver, CO 80225, USA;3. U.S. Geological Survey, Menlo Park, CA 94025, USA;4. Simon Fraser University, Burnaby, British Columbia, Canada;5. Water Research Centre (WRC), University of New South Wales, Sydney, NSW 2052, Australia;6. U.S. Geological Survey, Boise, ID 83702, USA;7. Kansas Geological Survey, Lawrence, KS 66047, USA;8. University of California, Santa Barbara, CA 93106, USA;9. National Center for Atmospheric Research, Boulder, CO 80307, USA;10. U.S. Geological Survey, Sacramento, CA 95819, USA;11. NASA Goddard Space Flight Center Greenbelt, MD 20771, USA;12. University of Texas, Austin, TX 78713, USA;13. Colorado School of Mines, Golden, CO 80401, USA |
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| Abstract: | The two interlinked networks of hydrological pathways in urban areas are described with particular reference to the links with groundwater. As well as reducing direct recharge, urbanization creates new pathways and sources of water for recharge, including leaking water mains, sewers, septic tanks and soakaways. The net effect is often to increase recharge to pre-urbanization rates, or higher in dry climates and cities with high densities and large imported water supplies. |
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