USGS Groundwater Information: Branch of Geophysics
![]() View looking down at research area, Loring Air Force Base, Maine. White tubing is part of the steam injection set up. |
![]() Colette Grégoire (Katholieke Universiteit Lueven, Belgium) lowers radar antenna in borehole. |
![]() Peter Joesten (OGW, Branch of Geophysics) holds borehole electromagnetic induction tool while Colette Grégoire (Katholieke Universiteit Lueven, Belgium) prepares to clean it. |
![]() Peter Joesten (OGW, Branch of Geophysics) and Colette Grégoire (Katholieke Universiteit Lueven, Belgium) explain the geophysical remediation monitoring to visitors. |
![]() Peter Joesten (OGW, Branch of Geophysics) processes preliminary borehole radar data. White casing on the left is for antenna storage. |
![]() Peter Joesten (OGW, Branch of Geophysics) prepares for surface-to-borehole data collection. Surface radar antenna can be seen in the center of the photo. |
![]() Preliminary borehole radar data were collected in the winter before remediation efforts began. |
![]() Colette Grégoire (Katholieke Universiteit Lueven, Belgium) conducts wireline borehole survey. |
![]() Chris Kochiss (OGW, Branch of Geophysics) raises borehole radar antenna in borehole while welders work on the steam injection system. |
![]() Peter Joesten (OGW, Branch of Geophysics) explains the borehole geophysics remediation monitoring experiment to U.S. Environmental Protection Agency personnel and consulting scientists. |