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Subsurface Barrier Validation with the SEAtrace Monitoring System

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Tech ID: 308
Project Overview
SEAtrace (TM) integrates real time soil gas sample collection and analysis with a global optimization technique to locate and size flaws in subsurface barriers in real time. The system is self powered (solar panels with battery backup), thermally controlled, and meant to operate for months at a time without onsite user intervention. SEAtrace is a remotely accessible field system, using a cellular modem link for remote data download and modification of the system's operation.
Technology Description
The SEAtraceTM Monitoring System is a gaseous tracer-based subsurface barrier verification system developed for use on containment barrier structures located above the water table. Non-hazardous tracer gas is injected inside the barrier, and gas-sampling points are located outside of the barrier to detect the arrival of the tracer gas through breaches in the barrier structure. The SEAtraceTM Monitoring System integrates real-time soil-gas sample collection and analysis with a global optimization technique to locate and size flaws in barriers in real time. The system is self-powered (solar panels with battery backup), thermally controlled, remotely accessible through a cellular modem link, and meant to operate for months at a time without on-site user intervention.

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