USGS - science for a changing world

USGS Ground Water Information

 Home  Data & Information  Publications  Methods & Modeling  Selected Topics  Programs  Contact Us

The Importance of Ground Water in the Great Lakes Region
Water Resources Investigations Report 00 - 4008

Figure 6

| Previous Figure | Back to Report | Back to Contents | Next Figure |

[Map: Figure 6 - Decline in water levels]

Figure 6. Decline in water levels in the sandstone confined aquifer, Chicago and Milwaukee areas, 1864-1980. (Modified from Avery, 1995.)

USGS Home Water Resources Biology Geography Geology Geospatial

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://water.usgs.gov/ogw/pubs/WRI004008/figure06.htm
Page Contact Information: USGS Office of Ground Water
Page Last Modified: Wednesday, 07-Nov-2007 16:48:26 EST