GSI had three proposals to the DoD’s ESTCP program that were recently selected for funding!
Building the Next Generation Long-Term Monitoring Optimization Toolbox: Revitalizing the MAROS Platform on the Web – While there is a need to optimize groundwater monitoring networks to collect better data for lower cost, the currently-available tools are becoming obsolete due to changes in the Microsoft platform. For this project, we will use GSI’s MAROS Microsoft Access tool as inspiration for a new, free, web-based toolbox. The new toolbox will include the most popular features of MAROS while adding new functionality to make it easier to understand and visualize site data. The toolbox will be programmed using the R Shiny framework, a powerful new technology platform used to build interactive websites. Moving the toolbox to the web also provides an opportunity to expand features to include mapping capabilities for soil in addition to groundwater, and to address emerging contaminants such as PFAS.
Project Partners: David Becker with US Army Corps of Engineers
For additional information, contact Lila M. Beckley, PG at lmbeckley@gsienv.com
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Rapid and Inexpensive Delivery of Particulate Carbon for In Situ PFAS Treatment in Groundwater – Our objective is to repurpose a commercially available geotechnical technology (the “Grout Bomber”) for enhanced delivery of granular activated carbon or other sorbent material for in situ treatment of PFAS source zones and dilute PFAS plumes. The technology can efficiently install hundreds, and even thousands, of vertical sorbent columns in a variety of configurations to retain dissolved phase PFAS in passing groundwater. Our goal is to provide the DoD with an alternative method of installing sorbents in the subsurface and offer substantial cost savings compared to conventional injection methods and ex situ pump and treat systems for groundwater treatment.
Project Partners: Keller, University of Texas at Austin, Clarkson University, NAVFAC
For additional information, contact Stephen D. Richardson, PhD, PE, PEng at sdrichardson@gsienv.com.
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Using Real-Time Remote Sensors to Reduce the Cost of Long-Term Monitoring and Remediation Performance Monitoring at PFAS Vadose Source Zones – By deploying 3D internet-of-things Sensor Arrays at PFAS vadose zone sources, this three-year project will provide a leap forward on the best ways for the DoD to measure/estimate recharge and to collect representative PFAS leachate samples at different types of sites at different locations. A high-level goal is to provide enabling technology for the DoD to perform systematic, science-based portfolio reviews to determine which PFAS vadose source zones need to be remediated and which ones do not pose a significant threat to groundwater.
Project Partners: Colorado State University, Dr. Hans Stroo
For additional information, contact Kenneth L. Walker, Jr., PE, PG at klwalker@gsienv.com.
