Special thanks to our employees on their #workanniversaries! We are grateful to have you! #employeeappreciation

If you’re looking for a fast-paced and dynamic work environment where you can apply your academic know-how, develop superior technical skills, and collaborate with top-notch industry professionals on a variety of exciting environmental projects, then GSI Environmental Inc. is the place for you!

At GSI, we seek the best and brightest talent and provide a supportive environment for career development. Our company culture is built on excellent service, teamwork, and technical collaboration to solve the most challenging environmental problems. We have an immediate opening for an entry-level Environmental Engineer/Scientist/Geologist in our Oakland, California office. Come join our team! #environmentaljobs

👉👉 Check it out! https://www.gsienv.com/careers/

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.

There are more than 1.1 million oil and natural gas wells in the US, of which about 770,000 (~70%) produce less than 15 barrels of oil equivalent (BOE) per day and are considered “marginal” in terms of their profitability to operators. While costs of regulatory compliance impact all producers, the small independents who operate many such wells could be disproportionately impacted, with associated economic impacts to energy production, states, and communities.

Results and findings will be presented of a recent research project, funded by the US Department of Energy and others, to characterize and quantify methane emissions specifically from low-producing oil and gas well sites across multiple U.S. regions and compare these results to published data on emissions from non-marginal wells.

Response Measures for Stray Gas Impacts to Groundwater Resources Presented by Jonathan M. Skaggs, PG & Travis M. McGuire, PE

Stray natural gas impacts on groundwater resources from oil and gas exploration, production, or storage has garnered significant public concern in the past decade. However, stray gas migration is by no means a new challenge related to oil and gas extraction. This talk discusses key considerations with regard to the fate and transport of gas in the subsurface, the unique nature of risks posed to groundwater users, related regulatory guidance on stray gas in the U.S. and Canada, and how these factors inform the investigation and response strategy. Recent case studies will be presented that highlight strategies for source determination.

REGISTER HERE! 

Leading the science in #PFAS. Check out Dr. Nicholas Johnson, Ph.D.‘s recent publication “Enhanced removal of per- and polyfluoroalkyl substances in complex matrices by polyDADMAC-Coated regenerable granular activated carbon.”

Special thanks to all the authors! Pia Ramos, Shashank Singh Kalra, Ph.D., Chia Miang Khor, Annesh Borthakur, Brian Cranmer, Gregory Dooley, Sanjay Mohanty, David Jassby, Jens Blotevogel, Shaily Mahendra

👉👉 Read the full article at https://lnkd.in/ewRWd7Wa