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DEVELOPMENT AND DEPLOYMENT OF GEOPHYSICAL TOOLS FOR RESISTIVITY MONITORING
SITE DESIGN
Three dimensional ERT image showing an array of many surface electrodes (red dots on the image block). In this case, a grid of electrodes was used to characterize the locations of resistivity features, likely voids or fractures in shallow basalt layers using a 1 x 1 m grid of electrodes.
Proposed well and surface line layout for a Permeable Reactive Barrier showing surface lines in green and wells with red electrodes and yellow labels.
FIELD SERVICES
Monitoring soil saturation during air sparging activities.
Data collection at an arsenic-contaminated Permeable Reactive Barrier site.
DATA ENTERPRETATION
3-D images, created with MPT inversion software, of the PRB at East Helena showing the barrier resistivity and IP from 7 to 15 m below ground surface. Electrode locations are shown as red dots.
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