MPT - Multi-Phase Technologies

Site Design
Field Services
Data Enterpretation

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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Sharon Coad