USGS North Carolina Water Science Center
Open-File Report 2008-1104
By Brad A. Huffman, Melinda J. Chapman, Kirsten C. Tighe, and Silvia Terziotti
Full Text Online · Report as PDF (1.5 MB)
Interactive Map · Download well data (XLS, 345 KB)
Abstract
More than 1,500 well records were compiled for Avery and Watauga Counties, North Carolina, as part of a study of ground-water resources. Wells in this area of the Blue Ridge Physiographic Province produce water from the fractured-bedrock aquifer. Prior to this study, only about 132 wells were included in the U.S. Geological Survey's National Water Information System, as a result of a study conducted during the late 1960s. The large number of additional well records provide a better data set to evaluate the ground-water resources. From the more recent well inventory conducted in 2007, the range of well yields in these two counties is from 0 to 400 gallons per minute. Total depth of the wells ranged from 20 to 1,204 feet below land surface, and depth to primary fracture zones ranged from 25 to 1,000 feet below land surface.
Interactive Map
The locations of these wells are plotted on an interactive online map. Each well location provides the following information when available: well, casing, and fracture depth; well yield; driller log; and topographic map of the well location. The map includes satellite, terrain, topographic, and aerial photo background options, and an optional hydrogeology layer.
Due to the density of wells in the subject counties, the well locations are not displayed until the interactive map has been zoomed to view specific areas. A counter to the upper right of the map indicates the current zoom level, and the zoom level at which the well locations will be displayed. Depending on the connection speed, it may take up to a minute for the data layers to load.
To view the PDF document, you need the Adobe Reader installed on your computer. (A free copy of the Adobe Reader may be downloaded from Adobe Systems Incorporated.)
U.S. Department of the Interior | U.S. Geological Survey
URL: http://nc.water.usgs.gov/reports/ofr2008-1104/index.html
Page Contact Information: North Carolina Web Development Team
Page Last Modified: Tuesday, December 6 2016, 01:08:08 PM
