Resources on the Web:

The Water Science Map Gallery. Thematic maps of fresh water usage across the United States.
http://ga.water.usgs.gov/edu/mapgallery.html

Groundwater atlas of the United States. Groundwater atlas of the United States and links to several USGS sites.
http://capp.water.usgs.gov/gwa/index.html

Groundwater in Virginia. Groundwater in Virginia and links to what makes it unique.
http://www.virginiaplaces.org/watersheds/groundwater.html

Basics of Groundwater. The basics of groundwater and links to resources
http://www.groundwater.com/groundwater_basics.htm

Groundwater Data for the Nation. The Ground-Water database contains ground-water site inventory, ground-water level data, and water-quality data.
http://waterdata.usgs.gov/usa/nwis/gw

Mathematics & ScienceCenter: Where it all adds up! Web site of the Mathematics & Science Center with variety of information on programs and opportunities for students.
http://mathsciencecenter.info/