Webinars

June 25, 2025 | 10:00 AM Pacific / 1:00 PM Eastern

Join us for the final session of our 6-part series, "The Nuts and Bolts of Thermal Remediation." In this session, we will cover the critical components for achieving successful thermal remediation operations:

• Startup Procedures: Best practices for initiating your thermal remediation project.
• Operational Tasks: Key insights into monitoring, controlling, and troubleshooting heating, extraction, and treatment systems.
• Data-Driven Decisions: How to leverage data collection, processing, and visualization to optimize system performance.
• Defining Success: The importance of setting clear project objectives and using KPIs to measure success.

Don't miss this opportunity to elevate your thermal remediation expertise and wrap up our comprehensive series with practical strategies and knowledge!

May 28, 2025 | 10:00 AM Pacific / 1:00 PM Eastern

As the design of your thermal remediation project nears completion, it is time to start planning for system installation and construction. In the 5^th webinar of our six-part series, “The Nuts and Bolts of Thermal Remediation,” we will cover the key steps to ensure a successful wellfield installation and system construction program.

We will discuss what’s needed to prepare your site for safe and efficient drilling and well installation, including:

• Utility locating
• Clearing and abandonment
• Rig access and sequence planning
• Managing overhead utilities
• Drilling inside buildings
• Investigation Derived Waste (IDW) screening and handling
• Oversight and logging
• Opportunities to collect contaminant data and refine the site CSM during installation

Additionally, we will cover the essential aspects of installing the extraction and treatment systems, along with the power supply equipment. This includes materials and equipment off-loading and staging, determining equipment size and location, placing the power drop, primary transformer, and power distribution and control panels; and managing any site access challenges.

April 23, 2025 | 10:00 AM Pacific / 1:00 PM Eastern

Vapor and liquid extraction and treatment systems are essential components of in situ thermal remediation (ISTR). These maintain pneumatic and hydraulic control during all phases of heating to ensure that the contaminants of concern (COCs) are effectively captured and removed from the treatment zone and unwanted mobilization and spreading are prevented.

Once recovered, the COCs must be removed from the vapor and liquid streams for proper disposal. In this fourth webinar in our series titled “The Nuts and Bolts of Thermal Remediation,” we will look at how vapor and liquid extraction and treatment systems are designed.

Presenter Steve McInerney, will draw on his experience to cover:

• Choosing the right treatment technologies for specific COCs and mass levels.
• Special considerations for treating PFAS and 1,4-dioxane.
• The fundamental components of ISTR treatment systems.
• Selecting appropriate materials for vapor manifolds and treatment equipment.
• The role of the mass and energy balance in sizing equipment and in managing the cooling and heating loads.
• Effective strategies for handling non-aqueous phase liquid (NAPL) recovered from the treatment zone or condensed out in the vapor manifold and equipment.

March 26, 2025 | 10:00 AM Pacific / 1:00 PM Eastern

In the third session of our webinar series titled “The Nuts and Bolts of Thermal Remediation,” we will review the details of the design of thermal remediation systems, following a thorough review of the Conceptual Site Model (CSM), and the selection of the appropriate technologies and approaches.

Thermal remediation expert, Steffen Griepke will guide us through designing the heating, extraction, and monitoring components of the system. He will also discuss the role of numerical modeling in ensuring effective heating across the treatment zone at all depths and locations as well as in predicting the operational timelines, utility requirements, and equipment sizing.

Some key insights from numerical modeling include estimating electrical power load, electricity consumption, vapor and liquid contaminant loading to the treatment equipment, liquid treatment and discharge rates, and vapor and liquid cooling loads.

We will cover the design of the wellfield components, including the thermal wells (TCH, ERH, SEE), extraction wells, and temperature and pressure monitoring points. This session will also specify which parameters to monitor and at what frequency. Lastly, we will discuss the importance of evaluating whether an insulated vapor cover is needed over the treatment area to ensure effective heating and successful remediation.

February 26, 2025 | 10:00 AM Pacific / 1:00 PM Eastern

In this second webinar of our series, “The Nuts and Bolts of Thermal Remediation,” we will take a deep dive into evaluating a site’s Conceptual Site Model (CSM) and selecting the optimal technologies and approach to achieve remedial objectives.

We will review the primary thermal technologies, detailing how each works, and discussing their advantages and limitations across a range of geologic and hydrogeologic conditions, including clay, silts, sands, gravels, bedrock, and varying groundwater flow.

Next, we will outline the key data from a site's CSM that determines technology selection, including:

• COC(s) chemical and physical properties
• Remediation goals
• Depth and volume of contamination
• Geology and groundwater flow
• Presence of underground structures or utilities
• Geotechnical considerations

Finally, we will explore how high resolution site characterization (HRSC) and precise source zone delineation can streamline your project, reduce costs, and ensure successful cleanup outcomes.

January 29, 2025 | 10:00 AM Pacific / 1:00 PM Eastern

In this first webinar of our series titled “The Nuts and Bolts of Thermal Remediation,” we will introduce the fundamentals of thermal remediation, covering the key contaminant removal and destruction mechanisms as well as the primary thermal technologies available. We will explore the benefits and limitations of each technology in relation to site geology and hydrogeology, addressing conditions like above and below the water table, high permeability / high groundwater flow settings, fractured bedrock, and complex sites with mixed permeability layers.

We will also cover the three basic thermal treatment approaches: low (35 to 90°C), moderate (100°C), and high temperature (greater than 100°C), discussing their sweet spots, what contaminants can be treated with each, and why you would choose one over the others. The session will wrap up with a case study demonstrating how multiple thermal technologies were successfully combined to effectively treat a CVOC DNAPL site with both low and high groundwater flow conditions.

Join us for a webinar exploring geotechnical factors to consider when implementing thermal conduction heating (TCH) beneath buildings, roadways and other sensitive infrastructure. Learn how to minimize potential risks and ensure safe and effective remediation through careful planning and monitoring.

In this session, Steffen Griepke, VP of Technology at TerraTherm will cover:

• Understanding geotechnical risks: Discover the potential for subsidence and other geotechnical effects associated with TCH, and how these can vary based on soil type, site history, and saturation conditions.
• Conducting thorough site assessments: Learn about essential geotechnical investigations and testing to identify potential risks and inform treatment design.
• Selecting appropriate heating approach: Explore how different well placement approaches can impact geotechnical properties and how to choose the most suitable option for your site.
• Implementing robust monitoring systems: Discover the importance of monitoring to track soil movements, identify potential issues, and adjust treatment strategies as needed based on observations.
• Case studies and lessons learned: Gain insights from real-world examples of TCH projects, including successful mitigation strategies and valuable lessons learned. Case studies will both cover examples with and without geotechnical impacts, and the cause will be discussed.

Whether you are a project manager, project engineer, environmental scientist, or regulatory professional involved in site remediation, this webinar will provide valuable insights into the practical considerations for safely implementing TCH beneath buildings and sensitive infrastructure.

Don’t miss this opportunity to learn how to mitigate risks and ensure successful remediation outcomes.

Join us for a webinar exploring the insights gained from a successful thermal remediation project at a former manufactured gas plant (MGP) site. Learn how a Pre-Design Investigation followed by two phases of Thermal Conduction Heating (TCH) treatment effectively removed mobile non-aqueous phase liquid (NAPL) and significantly reduced contaminant leachability and concentrations of volatile organic compounds (VOCs) in soil.

Key takeaways:

• Pre-Design Investigation: Understand how a pre-design investigation led to defining the target treatment zone and gathering critical design parameters.
• Navigating complex site conditions: Learn how TCH was tailored to overcome challenges posed by subsurface structures, varying soil conditions, and the presence of an active sewer line.
• Optimizing treatment parameters: Discover how data from Phase I informed the design and implementation of the second phase of treatment, ensuring incorporation of lessons learned that resulted in energy and costs savings.
• Understanding mass recovery and treatment effectiveness: Gain insights into the factors influencing mass removal, in situ destruction of mass through smoldering, and the level of treatment achieved at 100°C.
• Minimizing environmental impacts: Explore strategies for mitigating potential impacts to adjacent infrastructure and the surrounding community during TCH operations.

Whether you’re facing a complex MGP site or a similar contaminated site, this webinar will provide valuable insights into the practical application of thermal remediation and the importance of data-driven decision-making. Walk away with a deeper understanding of how to optimize TCH strategies for challenging sites and achieve successful project outcomes.

When a manufactured gas plant (MGP) site is identified for treatment, the typical remediation approach can be expensive and involve hazards for crews and the community. Any time you excavate contaminated soil and transport it for treatment or disposal, you are introducing potential safety and liability issues. Luckily, in situ thermal remediation (ISTR) is often a safe and cost-competitive alternative.

Join this webinar where our Vice President of Development, John LaChance discusses:

• Primary ISTR technologies, their applicability, and primary removal mechanisms at MGP sites
• Key design considerations for varying conditions and remediation goals
• A case study of an MGP site remediated with ISTR, including:
  • Analysis and discussion on the potential role of in situ smoldering in the removal of creosote/coal tar
• Insights into projects with unique goals, such as
  • Volatilization of low boiling point compounds
  • In situ immobilization of high boiling point compounds, including heavier range TPH and PAHs.

It’s one of the most commonly asked questions when considering thermal remediation, and in this webinar one of the industry’s leading experts will answer it. Join TerraTherm, a Cascade Company’s Vice President John LaChance as he introduces the basic operational theory and concepts for both technologies. He’ll discuss their application to a set of typical site conditions (e.g., low and high permeability zones in unconsolidated and bedrock formations) and contaminants (e.g., CVOCs), and highlight typical design approaches, assumptions, and the pros and cons of each.

John will share real-life examples of full-scale projects involving electric resistance heating (ERH) and thermal conductive heating (TCH), including detailed breakdowns and comparisons of costs. He’ll also touch on ETDSP^TM, a form of ERH that employs active injection and extraction of water. If you have burning questions about how ERH and TCH stack up, this is your chance to get them answered.