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

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.

Project Team Members: David T. Adamson, PhD, PE, Charles J. Newell, PhD, PE, BCEE, Hiroko Mori, PhD, Brian Strasert, PE, Kenia Whitehead, PhD,  Hannah Podzorski, Shahla K. Farhat, PhD Christ Niamake, Tom E. McHugh, PhD, DABT,  John Wilson (Scissortail Environmental Solutions)

Project Page: https://www.serdp-estcp.org/Program-Areas/Environmental-Restoration/Contaminated-Groundwater/Persistent-Contamination/ER20-1429/ER20-1429/(language)/eng-US

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Remote Monitoring of Natural Source Zone Depletion Using Temperature Data to Support Long-Term Passive Management Strategies (ER19-5091)

This project applies the Thermal NSZD technology, which entails remote thermal monitoring of the subsurface to estimate natural source zone depletion (NSZD) rates of light non-aqueous phase liquids (LNAPL). The specific objectives of an 18-month technology demonstration at two DoD facilities are to: 1) demonstrate the use of innovative, inexpensive 2^nd generation temperature monitoring systems to improve data quality and reduce costs; 2) demonstrate improved methods to separate the heat signal associated with biodegradation of petroleum from seasonal and other sources of temperature fluctuations in soils (i.e., improved background correction); 3) demonstrate (through field deployment) that temperature-based approaches to quantifying NSZD rates are particularly suited for LNAPL source areas located below buildings or other paved surfaces; and 4) compile results from monitoring of NSZD at many sites and utilize these results to i) document the range of NSZD rates and ii) identify site factors that may be predictive of higher or lower NSZD rates at individual sites. A successful demonstration will increase regulatory acceptance of this environmentally sustainable and cost effective technology for remediation of LNAPL source areas.

Project Team Members: Kenneth L. Walker, Jr, PE, PG, Tom E. McHugh, PhD, DABT, Schuyler Robinson, Travis Lewis (NAVFAC EXWC) Tom Sale (Colorado State University), Kayvan Karimi Askarani (Colorado State University), David Gent (US Army Corps of Engineers), Justin Meredity (Tennessee Department of Environment and Conservation)

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Developing a Framework for Monitored Natural Attenuation at PFAS Sites (ESTCP ER20-5198)

This project has the objectives of beginning to establish MNA as a viable remediation approach for some PFAS sites, helping users screen sites where MNA may be applicable, and providing guidance on characterizing sites and analyzing field data to support MNA determinations. If successful, it can be a key catalyst for reducing the number of expensive, energy intensive, and extremely inefficient pump and treat systems that are now likely the only way to manage PFAS at hundreds of PFAS sites.

Project Team Members: David T. Adamson, PhD, PE, Charles J. Newell, PhD, PE, BCEE, Poonam R. Kulkarni, PE, Hans Stroo (Stroo Consulting), Jovan Popovic (NAVFAC EXWC)

Project Page: https://www.serdp-estcp.org/Program-Areas/Environmental-Restoration/ER21-5198/ER21-5198/(language)/eng-US

Join Lila Beckley today at the Midwestern States Environmental Consultants Association 2021 Environmental Conference. She will be presenting on key elements important to #VI site characterization, and identify tools that can reduce uncertainty and support site management decisions.

👉👉 Register at MSECA 2021 Environmental Conference

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)

Register Today! 

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.

Register Today! 

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.