Another great talk! Dr. David Adamson will be presenting on Transitioning from Active Remedies to Monitored Natural Attenuation at the 2021 SERDP & ESTCP Symposium. At many Department of Defense sites where an active remedy has been used, the performance of this remedy has plateaued, and there is a critical need to understand how and when to transition to less cost-intensive approaches. The research will generate a quantitative tool for Remedial Project Managers to use to support a site-specific transition assessment. The goal is to establish a protocol for evaluating sites where Monitored Natural Attenuation could serve as an effective transition technology for longer-term management.

Date/Time: December 1st 10:00 – 1:15 pm EST

Session Name: Quantitative Groundwater Plume Characterization to Support Transition Assessments

Presentation Title: Transitioning from Active Remedies to Monitored Natural Attenuation (SERDP ER-1429)

Project Page: ER20-1429 (serdp-estcp.org)

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Our very own Dr. Stephen Richardson will be presenting the latest on In situ Groundwater Remediation research at the 2021 SERDP & ESTCP Symposium. His talk will provide an overview of current and innovative technologies for in situ groundwater remediation, explore some of the challenges facing environmental practitioners, and present some future directions for remediation of conventional and emerging contaminants in groundwater. See you there!

Date/Time: November 30th at 1240 pm eastern

Session Name: Installation Restoration: 30 Years of Research

Presentation Title: In Situ Groundwater Remediation: Physical Technologies for Conventional and Emerging Contaminants

Abstract: The environmental field has introduced a variety of in situ technologies to address groundwater impacts at contaminated sites, where physical alterations are made to the subsurface to enhance removal of conventional and/or emerging contaminants.  These technologies share one common goal – to reduce contaminant concentrations in groundwater by i) encouraging contact between dissolved phase contaminants and the remedial amendment and ii) enhancing removal mechanisms via sorption or degradation of the contaminants. This presentation will provide an overview of current and innovative technologies for in situ groundwater remediation, explore some of the challenges facing environmental practitioners, and present some future directions for remediation of conventional and emerging contaminants in groundwater.

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We are super excited to announce. Dr. Evelyn Reátegui-Zirena Ph.D, DABT is now a Diplomate of the American Board of Toxicology (DABT)👏👏👏

The DABT designation is a globally recognized credential in toxicology that represents mastery of the field and a commitment to high standards of practice for human health #toxicology and #riskassessment. It can only be earned by a combination of an advanced degree, experience, and passing an extremely rigorous certification exam. Only a small percentage of toxicologists achieve this honor.

GSI Environmental PFAS experts have recently published two peer-reviewed scientific articles regarding a potential new approach for managing #PFAS in #groundwater.   The key theme behind this research is that managing PFAS in groundwater is currently very challenging because most current in-situ groundwater remediation technologies are ineffective or not applicable to PFAS plumes. The proposed new approach evaluates if a suite of retention processes such as air/water partitioning, sorption, and matrix diffusion are strong enough to protect nearby groundwater receptors and allow the application of retention-based PFAS Monitored Natural Attenuation (MNA). This approach is summarized in these two recently published papers, both of which are open access with free downloads:

1. Monitored Natural Attenuation to Manage PFAS Impacts to Groundwater: Scientific Basis (Published in Groundwater Monitoring and Remediation)  https://lnkd.in/eHci4M25

2. Monitored Natural Attenuation to Manage PFAS Impacts to Groundwater: Potential Guidelines (Published in the Remediation Journal).  https://lnkd.in/ex8x3bEy

This PFAS MNA research was funded by GSI Environmental and authored by GSI PFAS experts Dr. Chuck Newell, Dr. David Adamson, Poonam Kulkarni, P.E., Dr. Blossom Nzeribe, Ph.D., and John A. Connor while at GSI; Dr. Jovan Popovic of the Naval Facilities Engineering Systems Command; and Dr. Hans Stroo of Stroo Consulting.  The authors plan to further develop the retention-based PFAS MNA technology in an upcoming U.S. Dept. of Defense research project, Developing a Framework for Monitored Natural Attenuation at PFAS Sites, ESTCP Project ER21-5198, led by GSI’s Dr. David Adamson.  https://lnkd.in/eyHzUtkZ

Proud Sponsors of the The Groundwater Project! Their mission is to provide accessible, engaging, high-quality, educational materials, free-of-charge online in many languages, to all who want to learn about groundwater and understand how groundwater relates to and sustains ecological systems and humanity. #groundwater #education #onlinebooks