USGS Groundwater Information: Hydrogeophysics Branch
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![]() USGS researchers at UConn research site. |
![]() Current was injected into trees using nails as electrodes. |
![]() Electrical resistivity soundings were conducted on a sample of trees. |
![]() Apparent resistivity was measured and recorded using a dc resistivity meter. |
![]() Apparent resistivity values at different distances into the tree and in trees at different locations were compared. |
![]() Trees were selected due to their position relative to known contamination plumes. |