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Open-File Report 2008-1377

Prepared in cooperation with the North Carolina Department of Environment and Natural Resources, Division of Water Quality

Water-Resources Data and Hydrogeologic Setting at the Raleigh Hydrogeologic Research Station, Wake County, North Carolina, 2005-2007

By Kristen Bukowski McSwain, Richard E. Bolich, Melinda J. Chapman, and Brad A. Huffman

ABSTRACT

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Water-resources data were collected to describe the hydrologic conditions at the Raleigh hydrogeologic research station, located in the Piedmont Physiographic Province of North Carolina. Data collected by the U.S. Geological Survey and the North Carolina Department of Environment and Natural Resources, Division of Water Quality, from May 2005 through September 2007 are presented in this report. Three well clusters and four piezometers were installed at the Raleigh hydrogeologic research station along an assumed flow path from recharge to discharge areas. Each well cluster includes four wells to monitor the regolith, transition zone, and shallow and deep bedrock. Borehole, surface, and waterborne geophysics were conducted to examine the lithology and physical properties of the bedrock and to determine the aerial extent of near vertical diabase dikes. Slug tests were conducted in the wells at each cluster to determine the hydraulic conductivity of the formation tapped by each well. Periodic water-level altitudes were measured in all wells and in four piezometers. Continuous hourly water levels were measured in wells for variable periods of time during the study, and a surface-water gage collected 15-minute stage data from April to June 2006. In October 2005 and April 2006, water-quality samples were collected from a tributary and in all wells at the Raleigh hydrogeologic research station. Continuous water-quality data were collected hourly in three wells from December 2005 through January 2007 and every 15 minutes in the tributary from May to June 2006. In August 2006, streambed temperatures and drive-point ground-water samples were collected across lines of section spanning the Neuse River.

First posted February 12, 2009

For additional information contact:
Director
U.S. Geological Survey
3916 Sunset Ridge Road
Raleigh, NC 27607
http://nc.water.usgs.gov/

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Suggested citation:

McSwain, K.B., Bolich, R.E., Chapman, M.J., and Huffman, B.A., 2009, Water-resources data and hydrogeologic setting at the Raleigh hydrogeologic research station, Wake County, North Carolina, 2005-2007: U.S. Geological Survey Open-File Report 2008-1377, 48 p. (only online at https://pubs.water.usgs.gov/ofr2008-1377).



Contents

Abstract

Introduction

Purpose and Scope

Description of the Study Area

Well and Surface-Water Station Numbering System

Methods of Data Collection

Research Stations

Neuse River Ground-Water and Surface-Water Interaction

Geologic Data

Hydrogeologic Data

Summary

Acknowledgments

References Cited

Appendix 1. Geologic core descriptions for WC-1CH from the Raleigh hydrogeologic research station

Appendix 2. Geologic core descriptions for WC-2CH from the Raleigh hydrogeologic research station

Appendix 3. Geologic core descriptions for WC-3CH from the Raleigh hydrogeologic research station


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