1. Ground-Water in Virginia George Harlow U.S. Geological Survey 1730 E. Parham Rd Richmond, VA 23228 804-261-2630

2. The Hydrologic Cycle

3. Ground-Water Use in the United States 34

4. Ground-Water-Flow System (Natural Conditions)

5. Direction and Rate of Ground-Water Movement

6. Ground-water pumpage terms

7. Aquifer Material Sand Shell material Crystalline rock Sedimentary rock Carbonates Coal

8. Wells

9. Physiographic Provinces of Virginia Coastal Plain Piedmont Mesozoic Lowlands Blue Ridge Valley and Ridge Appalachian Plateau

10. Hydrogeology of the Appalachian Plateau

11. Hydrogeology of the Valley and Ridge West East ? From: Harlow, G.E., Jr., Orndorff, R.C., Nelms, D.L., Weary, D.J., and Moberg, R.M., U. S. Geological Survey Scientific Investigations Report 2005-5161, p. 30.

12. Hydrogeology of the Blue Ridge and Piedmont http://www.hydro.geos.vt.edu/

13. Fractured rock aquifers Crystalline rock aquifers Carbonate rock aquifers

14. Evidence of Water Flow in Fractures

15. Coastal Plain

16. Ground-Water Monitoring Network for Virginia

17. What is an artesian well? http://ga.water.usgs.gov/edu/watercyclesprings.html www.michigan.gov/documents/deq/deq-wb-dwehs-wcu-drillingpluggingflowingwells_209019_7.ppt

18. Resources USGS, WRD, Virginia District http://va.water.usgs.gov/ USGS, WRD, Office of Ground Water http://water.usgs.gov/ogw/ VA Household Water Quality Program www.wellwater.bse.vt.edu