Webinars

Thermal remediation at sites with complex geologies where there are both high and low groundwater flow zones requires innovative engineering and a multi-technology approach to achieve success. The Hamilton/Labree Roads superfund site presented such challenges, including a PCE DNAPL source zone beneath a road and a creek, complex hydrogeologic conditions, and high groundwater flux zones. In this webinar John LaChance, VP of Development at TerraTherm will cover:

• Detailed Site Model: Understand the importance of a detailed conceptual site model (CSM) and site lithology in designing an effective remedy.
• Comprehensive Approach: Learn how multiple technologies were integrated to tackle the site’s unique complexities and achieve the remedial objectives safely and effectively.
• Technological Implementation: Discover how 49 steam injection wells (SIWs) and 82 ERH electrodes were used to effectively heat the site, and how a variety of extraction systems were used to maintain pneumatic and hydraulic control.
• Innovative Solutions: Explore the engineered solutions used to protect the creek, including an insulated channel and continuous temperature monitoring.
• Proven Results: Review the outcomes of the remediation process, including achieving soil concentration goals and removing over 7,800 lbs of contaminants.

Join us for an in-depth session into the lessons learned during the design, construction, and operation phases of this successful thermal remediation project. Gain valuable insights from real-world applications and understand how to address the challenges of complex geologic systems with high groundwater flux zones.

Over the past 20 years, John has become a leading expert in thermal remediation technologies. He helps clients select the right technology to effectively and efficiently remediate their sites, meet regulations, and ultimately enable property reuse. With over 50 successful in situ thermal remediation projects, John brings a wealth of technical and strategic insight to the thermal remediation field.

Complex geologies with highly permeable zones can cause significant challenges while heating the subsurface during in situ thermal treatment, and those challenges pose a serious threat to your project’s success. It is critical to have a detailed conceptual site model (CSM) and a proper understanding of the site’s lithology before choosing the technologies and designing the remedy that will best address the contaminant(s), the site’s unique complexities, and the outcomes demanded by state and federal guidance.

In this pre-recorded webinar, thermal expert John LaChance discusses:

• The characteristics and types of areas with high permeability and complex geological structures.
• The impact of these conditions on the effectiveness of thermal cleanup methods
• Examples of successful thermal cleanup projects in challenging geological settings.

Join a webinar that will take you on a journey through the transformative efforts at the former Williams Air Force Base in Mesa, Arizona, a former Liquid Fuels Storage Facility (ST012) Superfund Site, where historic releases of JP-4 jet fuel culminated in an estimated spill of 1 to 11.1 million gallons of contaminants.

The site underwent a comprehensive three-stage remediation approach, commencing with the world’s largest Steam Enhanced Extraction (SEE) project, followed by Enhanced Bioremediation (EBR), and concluding with Monitored Natural Attenuation (MNA). This session will shine a spotlight on the monumental first stage – SEE.

The project’s magnitude brought forth a myriad of challenges, from selecting equipment capable of withstanding extreme conditions and high contaminant loads to evaluating pumping systems able to extract hot steam, contaminants and water from up to 240 ft bgs. Delve into how the team navigated these obstacles and innovatively utilized the recovered LNAPL as a sustainable auxiliary fuel source for the vapor treatment system. The presentation will unveil the outcomes of the SEE phase, emphasizing the ingenious strategies implemented to overcome the challenges during the design and operation at ST012.

Join us for this presentation of the world’s largest steam jet fuel remediation project, and the challenges encountered during design and operation of the SEE system. Whether you’re an environmental aficionado, an academic, or intrigued by groundbreaking sustainable practices, this webinar is a treasure trove of insights.

Dive into the groundbreaking remediation techniques of the “Williams AFB SEE Project,” hosted by industry expert Steffen Griepke, VP of Technology at TerraTherm and Stuart Pearson, Principal Environmental Engineer at WSP.

Join us for an in-depth webinar exploring cutting-edge techniques in groundwater source zone contamination treatment. Dive deep into the challenges and potential of thermal remediation at sites with high groundwater flux rates. Discover how Steam Enhanced Extraction (SEE) can be utilized effectively with Thermal Conductive Heating (TCH) or Electrical Resistance Heating (ERH) to optimize heating in high-permeability and high groundwater velocity situations. 

However, thermal treatment of groundwater source zones is not without its challenges. Understand the design considerations and treatment system impacts on high flowing thermal sites, along with the change in energy demand associated with maintaining hydraulic control during the thermal remedy.  Equip yourself with the knowledge to navigate these challenges and implement efficient and cost-effective remediation strategies. 

Don’t miss out on this opportunity to learn from industry experts and enhance your understanding of groundwater source zone remediation techniques. Register today for our next webinar and stay on top of the latest trends and techniques in environmental management. 

Although Steam Enhanced Extraction (SEE) may not be the most common thermal remediation technology, it is the go-to approach for heating and treating sites with high permeability and groundwater flux. Did you know it’s also the most cost-effective way to input energy into the subsurface?

In this 30-min webinar, two thermal remediation experts will give you an overview of SEE. You will learn:

• How SEE works,
• What geologic conditions it is best suited for,
• Design considerations to ensure a successful SEE project,
• SEE sweet spots, and
• Examples of SEE projects.

VP of Technology, Steffen Griepke and Senior Project Engineer, Nikole Huard, will answer your questions about using SEE to remediate sites.

Thermal Conduction Heating (TCH), Electrical Resistance Heating (ERH) and Steam Enhanced Extraction (SEE) are widely used thermal technologies capable of effectively remediating a variety of chemicals in various varying subsurface settings, yet sometimes operations do not perform as planned.  An experienced thermal remediation contractor can help you anticipate and address site-specific challenges during full-scale thermal projects.

Presented by Vice President of Development, John LaChance and Vice President of Technology, Steffen Griepke, ISTR Challenges Part 2 covers some of the common issues that can arise at ERH and SEE sites, and discuss how they should be addressed.  You’ll hear about scenarios involving

• significantly different soil electrical resistivities than planned
• slower than expected heat-up
• stray voltages and currents
• poor steam quality
• higher than expected mass removal rates
• lack of hydraulic control
• non-uniform steam delivery and heating

Join the discussion for insight to help avoid costly project delays in your next thermal project.