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Geophysical logging and thermal imaging near the Hemphill Road TCE National Priorities List Superfund site near Gastonia, North Carolina

Open-File Report 2017-1017

Prepared in cooperation with the U.S. Environmental Protection Agency Region 4 Superfund Section
By:
and
https://doi.org/10.3133/ofr20171017

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Abstract

Borehole geophysical logs and thermal imaging data were collected by the U.S. Geological Survey near the Hemphill Road TCE (trichloroethylene) National Priorities List Superfund site near Gastonia, North Carolina, during August 2014 through February 2015. In an effort to assist the U.S. Environmental Protection Agency in the development of a conceptual groundwater model for the assessment of current contaminant distribution and future migration of contaminants, surface geological mapping and borehole geophysical log and thermal imaging data collection, which included the delineation of more than 600 subsurface features (primarily fracture orientations), was completed in five open borehole wells and two private supply bedrock wells. In addition, areas of possible groundwater discharge within a nearby creek downgradient of the study site were determined based on temperature differences between the stream and bank seepage using thermal imagery.

Suggested Citation

Antolino, D.J., and Chapman, M.J., 2017, Geophysical logging and thermal imaging near the Hemphill Road TCE National Priorities List Superfund site near Gastonia, North Carolina (ver. 1.1, March 2017): U.S. Geological Survey Open-File Report 2017–1017, 47 p., https://doi.org/10.3133/ofr20171017.

ISSN: 2331-1258 (online)

Study Area

Table of Contents

  • Abstract 
  • Introduction
  • Methods of Data Collection
  • Surface Measurements
  • Borehole Geophysical Logging and Imaging Data 
  • Inherent Sampling Biases in Measurements
  • Thermal Imaging Data
  • Summary
  • Acknowledgments
  • References Cited
  • Appendix 1. Borehole Geophysical Image Logs Showing Orientations of Subsurface Structural Features 
  • Appendix 2. Borehole Geophysical Logs Showing Depth of Fracture Zones and Measured Borehole Flow 
  • Appendix 3. Infrared Images Captured by Forward-Looking Infrared Camera at Sites to Measure Stream Surface and Bank Seepage Temperature Differences

Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Geophysical logging and thermal imaging near the Hemphill Road TCE National Priorities List Superfund site near Gastonia, North Carolina
Series title:
Open-File Report
Series number:
2017-1017
DOI:
10.3133/ofr20171017
Edition:
Version 1.0: Originally posted March 27, 2017; Version 1.1: March 30, 2017
Year Published:
2017
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Reston, VA
Contributing office(s):
South Atlantic Water Science Center
Description:
Report: v, 47 p.; Data Release
Country:
United States
State:
North Carolina
County:
Gaston County
City:
Gastonia
Other Geospatial:
Hemphill Road trichloroethylene National Priorities List Superfund site
Online Only (Y/N):
Y
Additional Online Files (Y/N):
Y