rotating images of water-related scenes
     
Illinois Water Supply
Illinois State Water Survey
  
    
 
  Illinois Water Supply Home - Background - Glossary - Search  
  
 
Glossary Terms

 
Cone of depression:
     A three-dimensional representation of the drawdown created around a pumping well. Taking the shape of an inverted cone, the drawdown is greatest at the pumping well and decreases logarithmically with distance from the pumping well to zero at the Radius of Influence.

Choose Another Glossary Word

You can also Search the questions/terms. Term References    

Illinois Water Supply Home - Background - Glossary - Search
| Home | Highlights | Staff | Data | Information | Centers | Site Map |
 
University of Illinois at Urbana-Champaign logo Illinois State Water Survey, Contact Information
 University of Illinois at Urbana-Champaign

All files and information © 2009 Illinois State Water Survey. Terms of use.
Email the Web Administrator with questions or comments.
Last Modified: February 02, 2005


Recent Papers, Documents, our latest Annual Report, Press Releases, and more Events and Information Reach our Staff here at the Survey by Email, Phone, or Postal Mail Download Online Data, Maps, Posters, and locate Sources for Offline Data Services, Events, Documents, Conferences, Scholarships, Employment Opportunities, How to find the Survey, Selected Journal Articles and more General Information about the Survey The Centers/Program/Office of The Water Survey Including The Office of the Director A Site Map of this Web Site with expanded and compact view options Search this Web site, our Publications Database, and more Information about the Illinois State Water Survey Illinois State Water Survey Home Recent Papers, Documents, our latest Annual Report, Press Releases, and more Events and Information Reach our Staff here at the Survey by Email, Phone, or Postal Mail Download Online Data, Maps, Posters, and locate Sources for Offline Data Services, Events, Documents, Conferences, Scholarships, Employment Opportunities, How to find the Survey, Selected Journal Articles and more General Information about the Survey The Centers/Program/Office of The Water Survey Including The Office of the Director A Site Map of this Web Site with expanded and compact view options Search this Web site, our Publications Database, and more