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Client Spotlight: Rosa Gwinn, PhD

By combining academics with her professional environmental remediation experience, Rosa Gwinn, PhD, Global PFAS Technical Leader with AECOM, brings an impressive background to her field. She shares, “In my current role, I am responsible for sharing our PFAS thought leadership, ensuring the technical execution of PFAS work, collaborating internally and externally on solutions, and developing a best-in-class performance on PFAS-related projects. However, I also enjoy providing opportunities to promising and capable employees who are not as far along in their careers as I am.” Learn more in our client spotlight.

Webinar on PFAS Regulations and a Low-Cost Solution to Eliminate Risk via In-Situ Treatment

Cost-Effective Treatment to Eliminate the Risk from PFAS from REGENESIS in the News

Colloidal Activated Carbon Demonstrates Effective, In-Place Removal of PFAS from Groundwater

This article published in Technology Networks discusses a novel, colloidal form of activated carbon that demonstrates effective, in-place removal of PFAS from groundwater. Written by Kristen Thoreson, PhD, Vice President of Research and Development at REGENESIS, it discusses why PFAS in groundwater is a daunting environmental challenge, current methods for PFAS removal from groundwater, and a novel PFAS groundwater treatment technology that is effective and lower cost than other current methods: colloidal activated carbon passive barriers.

Eliminate the Risk of PFAS with Colloidal Activated Carbon

In situ remediation with colloidal activated carbon eliminates risk of PFAS contamination in soil and groundwater at a low-cost. By coating flux zones of an aquifer with colloidal activated carbon, a permeable sorption barrier is created in situ, purifying groundwater as it passively migrates. PFAS constituents from up-gradient source zones are rapidly sorbed to the carbon and removed from the mobile dissolved phase. By removing PFAS from the mobile phase, the route of exposure to down-gradient receptors is eliminated, thereby eliminating the down-gradient public health risk associated with PFAS.

Webinar on Effective Use of Colloidal Sulfidated ZVI and Activated Carbon in Permeable Reactive Barriers

In this webinar we were pleased to have a special presentation from three leading technical experts in the remediation industry – John Freim PhD, Ryan Moore CHMM, and Andrew Kavanagh of REGENESIS. This panel discussed using a synergistic mixture of colloidal sulfidated ZVI and activated carbon to promote the enhanced performance of in situ reactive barriers. The recording of this webinar is now available.

Stay Up-to-date on Industry Technologies With Our Remediation Training Library

Client Spotlight: Tracey Mulhern

Ask Tracey Mulhern, Associate Geologist with Farallon Consulting, what she likes most about her work and you’ll likely learn that providing superior client service is just one of the many aspects she enjoys. She begins, “I enjoy working with clients to come up with environmental solutions to meet their individual needs. I also enjoy the planning that goes into a site investigation or cleanup and seeing it completed.” Currently, Mulhern conducts project management of contaminated site investigation and cleanup at various sites throughout Washington. Learn more about Tracey’s work at Farallon in our client spotlight.

PlumeStop Eliminates Offsite TCE Migration Meeting Site Goals in 60 Days

Turn Polluted Aquifers into Purifying Filters with PlumeStop

Low-cost Bioremediation of Chlorinated Solvents

HRC is an engineered, hydrogen release compound designed specifically for enhanced, in situ anaerobic bioremediation of chlorinated compounds in groundwater or highly saturated soils. HRC enables enhanced anaerobic biodegradation by adding hydrogen (an electron donor) to groundwater and/or soil to increase the number and vitality of indigenous microorganisms able to perform the naturally occurring process of enhanced reductive dechlorination. Due to its capability of being applied via permanent wells, direct-push, and excavations, this reagent allows for clean, low-cost, non-disruptive application.

Accelerated Treatment of Intermediate Compounds

BDI Plus is designed to provide rapid, effective treatment of undesirable anaerobic dechlorination intermediate compounds such as dichloroethene (DCE) and vinyl chloride (VC), and is a low-cost means of enhancing the anaerobic biodegradation process. Once in place, this microbial consortium accelerates the rate of chlorinated contaminant degradation from parent compounds to intermediates like DCE and VC and completely through to harmless end products such as ethene and ethane. It is highly compatible with a range of electron donors.

Over 8 Million Cubic Feet of Groundwater Treated In 13 Days

This case study reviews the site of a large-scale enhanced reductive dechlorination (ERD) treatment of chlorinated volatile organic compounds (CVOCs) applied in a fractured bedrock aquifer at a voluntary remediation site in Pennsylvania. REGENESIS Remediation Services (RRS) began the application in May 2020 and completed it in less than 13 days, averaging nearly 7,000 gallons of fluid volume injected per day at this active facility. In total, more than 260,000 combined pounds of 3DME, CRS and BDI Plus were injected for ERD treatment of the CVOCs. The extensive injection well network and large injection volume required RRS to develop an innovative injection process and containment design.

Long-Term, Low-Cost Remediation of Chlorinated Solvents

A Liquid Iron Based-Reagent for the Enhanced In Situ Chemical Reduction (ISCR) of Chlorinated Contaminants

CRS (Chemical Reducing Solution) is an iron-based amendment for in situ chemical reduction (ISCR) of halogenated hydrocarbon contaminants such as chlorinated ethenes and ethanes. This highly efficient in situ remediation technology contains a form of liquid iron which provides better distribution than can be achieved by directly injecting a solid iron material into the subsurface. The product allows for seamless integration with anaerobic bioremediation, and is easy to apply with the electron donor 3-D Microemulsion.

Video Shows How PetroFix is Easily and Safely Applied to Effectively Treat Petroleum Contaminants

Client Spotlight: Emma McAnaw

Emma McAnaw is a Senior Hydrogeologist and experienced Project Manager at Golder, a global consulting and engineering firm. Emma’s international experience spans the manufacturing, waste, mining, power and infrastructure sectors. Based out of the UK, working at Golder has taken her to sites all over the UK, as well as Colombia, Bulgaria, Greece, and Gibraltar. As Project Manager, Emma enjoys seeing all the moving parts of a project coming together. At the same time, she also still likes being “hands-on” with the site investigation and remediation work which comes with managing junior staff. Learn more in our client spotlight.

PlumeStop Effectively Treats Chlorinated Solvents in Bedrock at UK Site

Turn Polluted Aquifers into Purifying Filters with PlumeStop

Low-cost Bioremediation of Chlorinated Solvents

HRC is an engineered, hydrogen release compound designed specifically for enhanced, in situ anaerobic bioremediation of chlorinated compounds in groundwater or highly saturated soils. HRC enables enhanced anaerobic biodegradation by adding hydrogen (an electron donor) to groundwater and/or soil to increase the number and vitality of indigenous microorganisms able to perform the naturally occurring process of enhanced reductive dechlorination. Due to its capability of being applied via permanent wells, direct-push, and excavations, this reagent allows for clean, low-cost, non-disruptive application.

Accelerated Treatment of Intermediate Compounds

BDI Plus is designed to provide rapid, effective treatment of undesirable anaerobic dechlorination intermediate compounds such as dichloroethene (DCE) and vinyl chloride (VC), and is a low-cost means of enhancing the anaerobic biodegradation process. Once in place, this microbial consortium accelerates the rate of chlorinated contaminant degradation from parent compounds to intermediates like DCE and VC and completely through to harmless end products such as ethene and ethane. It is highly compatible with a range of electron donors.

Successful Pilot Study On Former Bulk Storage Site

This case study reviews a full-scale PetroFix remediation program that was designed and implemented at seven locations to treat petroleum hydrocarbons (PHCs) following a successful field pilot test. Two post-injection groundwater sampling events were completed in June and September 2019. In December 2019, a supplemental PetroFix injection was completed in the PHC source area onsite following the PersulfOx and ORC-A pretreatment step and groundwater equilibration. Working with REGENESIS, the environmental consulting firm Patriot Engineering developed a site closure strategy that included reducing groundwater concentrations, inhibiting plume migration, and demonstrating plume stability site-wide.

Apply Activated Carbon Under Low Pressure to Treat Petroleum Hydrocarbons

Client Spotlight: Arun Wahi

Arun Wahi, Senior Hydrogeologist with INTERA Inc., a leading international geosciences and engineering consulting firm, specializes in contaminant fate and transport analyses of organic and inorganic contaminants and radionuclides, including numerical models of vadose zone and groundwater flow and transport. He shares, “I enjoy the challenges associated with mathematics and learning new chemistry of emerging contaminants or forensic techniques, but the most rewarding part of my job is influencing concrete actions that protect human health and the environment.” Learn more in our client spotlight.

Combined Remedy Reduces Chlorinated Solvents to Achieve Closure Status with Florida DEP

Turn Polluted Aquifers into Purifying Filters with PlumeStop

Low-cost Bioremediation of Chlorinated Solvents

HRC is an engineered, hydrogen release compound designed specifically for enhanced, in situ anaerobic bioremediation of chlorinated compounds in groundwater or highly saturated soils. HRC enables enhanced anaerobic biodegradation by adding hydrogen (an electron donor) to groundwater and/or soil to increase the number and vitality of indigenous microorganisms able to perform the naturally occurring process of enhanced reductive dechlorination. Due to its capability of being applied via permanent wells, direct-push, and excavations, this reagent allows for clean, low-cost, non-disruptive application.

Remediation of Chlorinated Solvents with PlumeStop Liquid Activated Carbon

PlumeStop technology can be applied to inhibit spreading of contaminant plumes, to protect sensitive receptors, or to prevent contaminant migration across property boundaries. It is also an effective tool for control and treatment of groundwater contamination associated with low-permeability porous formations and matrix back-diffusion, promoting diffusion out of the immobile porosity while preventing groundwater impact, and for treating sites with very low contaminant concentrations. Once in place, PlumeStop is expected to last for decades with minimal impact on aquifer oxidation-reduction potential, permeability and geochemistry.

Webinar Now Available: A State Regulator’s Perspective on PFAS in Minnesota

In this webinar we were pleased to have as a special guest speaker Ginny Yingling, Senior Hydrogeologist at Minnesota Department of Health. Her presentation shared a state regulator’s perspective on PFAS in Minnesota. She was joined by Scott Wilson, President & CEO at REGENESIS, who discussed the extent to which colloidal activated carbon has been accepted by the remediation industry as a low-cost method of eliminating PFAS risk.

Client Spotlight: April McGuire

By working with various teams to design and complete projects that help reduce a development’s impact on the environment, and by producing results that exceed client expectations, April McGuire, Project Engineer for Roux receives a “double dose” of satisfaction from her work. She shares, “Working with other intelligent and passionate people in the Roux Long Beach office on complex sites, delivering on projects, and making clients happy is what it’s all about.” In her current role, she manages various types of projects, including remediation, site investigations, and vapor intrusion mitigation system designs.

PlumeStop Effectively Degrades Contaminants to Lead Northern California Site to NFA Status

Turn Polluted Aquifers into Purifying Filters with PlumeStop

Webinar Now Available: Matt Burns Showcasing Proven Methods for Saving Time and Money

In this webinar we were pleased to have as a special guest speaker Matt Burns, Technical Director of Environmental Services for WSP. His presentation discussed proven methods for saving time and money using in-situ activated carbon remediation. He was joined by Maureen Dooley, Director of Strategic Projects at REGENESIS

Petroleum Hydrocarbons Treated with PetroFix at Former Naval Auxiliary Air Station, Edenton Site is the 3rd NAAS Site Successfully Treated with PetroFix

Apply Activated Carbon Under Low Pressure to Treat Petroleum Hydrocarbons

PetroFix is an activated carbon remediation technology that is easily injected in situ under low pressure, distributes in the subsurface without fracturing, and includes electron acceptors to stimulate biodegradation of petroleum contaminants in soil and groundwater. This cost-effective technology is designed to remediate petroleum spills and provide immediate results for gas station and UST sites. It works with the PetroFix Design Assistant™, an online design tool that enables users to individually tailor their site designs and self-apply PetroFix.

Newly Released Webinar Provides Guidance for In-Situ Remediation at Fractured Bedrock Sites

Webinar with PFAS Industry Expert, Dr. Grant Carey Presenting on PlumeStop Longevity

In this webinar we were pleased to have as a special guest speaker Grant Carey, Ph.D., President of Porewater Solutions. His presentation discussed PlumeStop longevity for in-situ PFAS plume treatment. He was joined by Ryan Moore, PFAS Program Manager at REGENESIS, who discussed in-situ treatment of PFAS using colloidal activated carbon to eliminate PFAS risk at a low cost.

Client Spotlight: Joel Parker

For Joel Parker, Principal Engineer with Hamp, Mathews & Associates, a Michigan-based environmental remediation firm, the opportunity to combine his passion for science with practical remediation solutions that impact our everyday lives provides the ideal footing for offering clients sound technical advice that can lead to optimal remediation outcomes. He begins, “My favorite aspect of my position is living at the fringes of all the sciences. I function at a nexus of physics, chemistry, biology, geology and hydrogeology. It is very rewarding to ‘play’ in a space where those sciences mix in the real world.” Learn more in our client spotlight.

Colloidal Carbon Barrier Protects Neighborhood from Chlorinated Solvent Plume

Turn Polluted Aquifers into Purifying Filters with PlumeStop

ZVI Optimized for Reactivity and Superior Distribution

REGENESIS offers S-MicroZVI, an advanced zero-valent iron (ZVI) product proven to accomplish In Situ Chemical Reduction (ISCR) of contaminants within the subsurface environment. S-MicroZVI is delivered as a colloidal suspension 40% ZVI by weight in glycerol with a particle size of less than 5 microns. S-MicroZVI is manufactured using a state-of-the-art sulfidation process resulting in a particle coating which increases activation toward specific contaminants and extends performance longevity. S-MicroZVI destroys contaminants abiotically and applied to stimulate ISCR-enhanced bioremediation.

PFAS Remains at Non-Detect After 20 Months Following Application of PlumeStop at DoD Site

Upcoming Webinar with Matt Burns Showcasing Proven Methods for Saving Time and Money

In this webinar we are pleased to have as a special guest speaker Matt Burns, Technical Fellow and the U.S. Contaminated Land National Service Line Director for WSP. His presentation will discuss proven methods for saving time and money using in-situ activated carbon remediation. He will be joined by Maureen Dooley, Director of Strategic Projects at REGENESIS. This live webinar starts Thursday, October 29th, 2019 at 11am pacific/2pm eastern.

Upcoming Webinar with PFAS Industry Expert, Dr. Grant Carey Presenting on PlumeStop Longevity

Client Spotlight: Clayton Sorensen

Clayton Sorensen, Project Geologist with GSI Environmental Inc. (GSI), shares, “I chose a career in environmental remediation because I enjoy applying creative solutions and science to complex problems.” In his current role with GSI, Sorensen works to assess and clean up soil and groundwater on a variety of sites. He continues, “I manage field implementation for investigation and remediation of various constituents in soil and groundwater including PFAS, chlorinated solvents and heavy metals, both in fractured and porous media.”

PetroFix Chosen as Most Cost-Effective Option to Address Petroleum Contaminants at DoD Site

Apply Activated Carbon Under Low Pressure to Treat Petroleum Hydrocarbons

7 Reasons to Consider an In-Situ Permeable Reactive Barrier to Treat Groundwater Contaminants

This video outlines 7 reasons to consider an in-situ permeable reactive barrier (I-PRB) to treat groundwater contaminants. If designed intelligently and installed correctly, I-PRBs can be a highly cost-effective and customizable remediation tool that environmental practitioners can use to achieve cleanup goals.

eBook Provides Analysis of Effectiveness of In-Situ Permeable Reactive Barriers

PFAS Webinar Now Available!

In this webinar we were pleased to have as a special guest speaker Rick McGregor, President of InSitu Remediation Services Ltd. His presentation discussed six pilot-scale studies evaluating the in situ treatment of PFAS in groundwater. He was joined by Maureen Dooley, Director of Strategic Projects at REGENESIS, who discussed in situ treatment of PFAS using colloidal activated carbon to eliminate PFAS risk at a low cost.

How Colloidal Activated Carbon Eliminates PFAS Risk and Liability at a Low Cost

Client Spotlight: John Butillo

As the Engineering Manager for Sovereign Consulting Inc., John Butillo is responsible for bioremediation field application, from initial engineering design with system/plant installations, to maintenance and troubleshooting. He shares, “My technical role focuses primarily on facility engineering, permitting, project design, construction and installation of soil/groundwater remediation and wastewater treatment systems, and waste minimization programs.” Butillo has served as the lead design and implementation project manager and lead engineer on more than 100 soil and groundwater remediation projects. Learn more in our client spotlight.

PetroFix Applied at Former Buxton Naval Auxiliary Air Station to Treat Hydrocarbon Contaminants

Apply Activated Carbon Under Low Pressure to Treat Petroleum Hydrocarbons

Third Party Research Article – Six Studies on the In Situ Treatment of PFAS in Groundwater

eBook Provides Analysis of Effectiveness of In-Situ Permeable Reactive Barriers

Upcoming PFAS Webinar – Sign Up Today!

In this webinar we are pleased to have as a special guest speaker Rick McGregor, President of InSitu Remediation Services Ltd. His presentation will discuss six pilot-scale studies evaluating the in situ treatment of PFAS in groundwater. This free webinar begins Wednesday, August 12th, 2020 at 11am pacific/2pm eastern.

Client Spotlight: Ben Christensen

For Ben Christensen, Project Manager/Professional Engineer with AECOM, pursuing a career which involved working outside and “getting my hands dirty” was a primary motivator. He shares, “I have completed multiple soil and groundwater investigations. I’ve also implemented groundwater and soil remediation by in situ chemical and bio-remediation injections, groundwater pump and treat systems, soil-vapor extraction (SVE) systems, bioventing, and excavation.” In his current role, he manages firm-fixed price projects at Nellis AFB, Offutt AFB, and Scott AFB, that include about 30 sites. Learn more in our client spotlight.

Performance-Based Objectives Achieved at Scott AFB

Apply Activated Carbon Under Low Pressure to Treat Petroleum Hydrocarbons

ISCO Solution Gets Sites to Closure Quickly

RegenOx® is an injectable, two-part ISCO reagent that combines a solid sodium percarbonate based alkaline oxidant (Part A), with a liquid mixture of sodium silicates, silica gel and ferrous sulfate (Part B), resulting in a powerful contaminant destroying technology. RegenOx directly oxidizes contaminants while its unique catalytic component generates a range of highly oxidizing free radicals that rapidly and effectively destroy a range of target contaminants including both petroleum hydrocarbons and chlorinated compounds.

Remediation Technology Tailored to the Petroleum Industry

Upcoming PFAS Webinar – Sign Up Today!

In this webinar we are pleased to have as a special guest speaker Rick McGregor, President of InSitu Remediation Services Ltd. His presentation will discuss six pilot-scale studies evaluating the in situ treatment of PFAS in groundwater. This free webinar begins Wednesday, August 12th, 2020 at 11am pacific/2pm eastern.

Featured Article – Cleaning up ‘forever’ chemicals in drinking water not easy task

Upcoming Webinars – Register Today!

REGENESIS is pleased to announce our Summer and Fall 2020 Webinars. This series will feature three special guest presentations from distinguished professionals in the remediation industry. The topics of these webinars include innovative use of a preemptive vapor barrier, six pilot-scale studies evaluating the in situ treatment of PFAS in groundwater, and a case study in which an in situ strategy effectively treated PFAS at a Superfund site.

Vapor Intrusion Webinar Recording Now Available

Industry Leaders in Applying Remediation Technologies

With decades of application experience, our Field Service Team is strategically located across the country to mobilize and assist on a wide range of sites throughout the US. REGENESIS Remediation Services (RRS) injection trailers are staffed by experienced field scientists and mobilized to every site equipped with a positive displacement injection pump (or similar), capable of producing at least 20 gallons per minute in flow. To learn more about the typical injection setup of the industry-leading RRS application team, download the brochure.

Client Spotlight: Jeremy Kinman

Jeremy Kinman is Associate Technical Director for Wilcox Environmental Engineering, Inc. Kinman realizes his work is indeed benefitting our planet, while also providing him with a role that is both rewarding and challenging. He shares, “One of the more rewarding aspects of my job is being in a position to assist a client with property redevelopment or obtaining an incident closure letter from the state regulatory agency.” At Wilcox, he started in the field and then transitioned into a project manager role and began designing work plans for investigation and remediation activities for projects he directly managed. Learn more in our client spotlight.

Performance-Based Objectives Achieved at Scott AFB

PlumeStop Arrests PCE in Fast Moving Aquifer

Turn Polluted Aquifers into Purifying Filters with PlumeStop

PlumeStop Liquid Activated Carbon is a break-through groundwater remediation technology that reduces dissolved phase contaminant plumes in days. Composed of extremely fine particles of activated carbon (1‐2μm) suspended in water through a proprietary dispersion chemistry, PlumeStop flows into the subsurface at low pressure and achieves consistent, reliable distribution – a capability unlike any other form of activated carbon used for groundwater remediation today.

Low-cost Bioremediation of Chlorinated Solvents

Accelerated Treatment of Intermediate Compounds

Bio-Dechlor INOCULUM Plus (BDI Plus) is designed to provide rapid and effective treatment of undesirable anaerobic dechlorination intermediates such as dichloroethene (DCE) and vinyl chloride (VC), and is a low-cost means of enhancing the anaerobic biodegradation process. Once in place, this microbial consortium accelerates the rate of chlorinated contaminant degradation from parent compounds to intermediates like DCE and VC and completely through to harmless end products such as ethene and ethane. It is highly compatible with a range of electron donors.

eBook: Zero-Valent Iron Frequently Asked Questions (FAQ)

Integrated Remediation of a Mixed Pesticides, TPH and VOC Plume at a Former Industrial Site in United Kingdom

This video explains the in situ remediation at a former industrial site of significant groundwater contamination: petroleum hydrocarbons, volatile organic compounds including BTEX, trimethylbenzene, and a mix of organochlorine pesticides, including pentachlorophenol, Lindane (gamma-HCH) and Dieldrin. An environmental solution consisting of multiple in situ remediation approaches was designed and implemented to meet the groundwater cleanup targets required as part of the property lease surrender process. Soilfix worked closely with REGENESIS on this challenging project. Great results were achieved within a tight time-scale on behalf of the FTSE100 company and their consultant Ramboll, resulting in successfully achieving the client’s project goals.

Upcoming Vapor Intrusion Webinar – Sign Up Today!

PFAS Webinar Recording Now Available!

NOTE: This webinar has been approved for Continuing Legal Education (CLE) by the Supreme Court of Ohio Commission on Continuing Legal Education.

A New Resource for Your End User Clients

Guest Author Series – Part 2