A recently completed three-year study
at Boise State University has successfully advanced the
understanding of the applications of ground-penetrating radar,
research that one day could lead to savings in environmental
clean-up.
The study’s data demonstrates that ground-penetrating radar can
be used to characterize the components of the rock and sediment
layers and the subsurface transport of contaminants, while
allowing for a more rapid response to clean-up efforts than is
possible by using traditional invasive methods such as digging
wells.
Warren Barrash and Michael Knoll,
professors at the Center for Geophysical Investigation of the
Shallow Subsurface and department of geosciences at Boise State,
led the project. The Inland Northwest Research Alliance (INRA), a
coalition of eight Northwestern research universities, including
Boise State University, funded the effort.
The research was conducted at a
research site along the Boise River called the Boise
Hydrogeophysical Research Site and at sites at the Idaho National
Engineering and Environmental Laboratory. Boise State doctoral
student Greg Oldenborger and research professor William Clement,
along with Robert Starr and Roelof Versteeg of INEEL, collaborated
with Barrash and Knoll.
Mapping and understanding the makeup of the ground just below
the surface is important for developing subsurface environmental
clean-up measures. Contamination flows through groundwater based
on the distribution of the ground’s rock and sediment types.
Traditional methods to obtain information about contaminant flow
such as trench and well digging are invasive in terms of time and
money. These methods are also dangerous because of human exposure
to the contaminants.
The INRA-funded study was part of
ongoing research efforts involving CGISS scientists
aimed at developing more effective
and efficient methods for evaluating and cleaning up
subsurface contamination. The work
has important implications for a wide range of clean-up efforts,
including those at INEEL. The work is also contributing to an
overall understanding of subsurface science, identified as one of
the top research priorities by the U.S. Department of Energy, the
U.S. Departments of Defense and the Environmental Protection
Agency.
INRA is a non-profit scientific and
educational organization consisting of eight western research
universities (Boise State University, Idaho State University,
Montana State University, Utah State University, the University of
Alaska Fairbanks, the University of Idaho, the University of
Montana and Washington State University.) INRA was created to
promote new opportunities for research and education that will
benefit the region and the nation in a variety of technical
disciplines.
INRA is a partner with Bechtel and BWXT Inc. in the management
and operations contract for the INEEL, operated for the U.S.
Department of Energy. INRA’s roles in this contract include the
support of collaborative basic and applied research programs
between its member universities and the INEEL staff by funding
several diverse multi-year research projects in the critical
mission areas of the laboratory, including environmental
management, energy sciences, and national security.
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