Ground-Water in Virginia George Harlow U.S. Geological Survey 1730 E. Parham Rd Richmond, VA
The Hydrologic Cycle
Ground-Water Use in the United States 34
Ground-Water-Flow System (Natural Conditions)
Direction and Rate of Ground-Water Movement
Ground-water pumpage terms
Aquifer Material Sand Shell material Crystalline rock Sedimentary rock Carbonates Coal
Wells
Physiographic Provinces of Virginia Coastal Plain Piedmont Mesozoic Lowlands Blue Ridge Valley and Ridge Appalachian Plateau
Hydrogeology of the Appalachian Plateau
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 , p. 30.
Hydrogeology of the Blue Ridge and Piedmont
Fractured rock aquifers Crystalline rock aquifers Carbonate rock aquifers
Evidence of Water Flow in Fractures
Coastal Plain
Ground-Water Monitoring Network for Virginia
What is an artesian well?
Resources USGS, WRD, Virginia District USGS, WRD, Office of Ground Water VA Household Water Quality Program