Steffen Griepke

Technology Director, TerraTherm

Steffen Griepke is the Technology Director at TerraTherm. In this role, he helps clients determine if a thermal remedy would work on their project site and, if so, which thermal technology or combination of technologies would be the most cost-effective. He then leads the design of the remedy and guides its implementation, operation, and continued optimization through project completion. Steffen began his thermal career in 2003 working with thermal technologies and has been involved in more than 75 successful projects. They have included sites from former dry cleaners, chemical manufacturing plants, chemical storage facilities, MGP sites, brownfields, military installations, and tank areas.

As an internationally-recognized in situ thermal remediations (ISTR) expert, Steffen also supports his clients in their communication with oversight agencies and regulators. Steffen’s experience in designing, operating, and using real-time data for optimizing thermal projects makes him an excellent partner for clients with complex sites or recalcitrant compounds.

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Thermal Remediation Technologies and the Benefits Offered for Contaminated Redevelopment Sites

Over the last 20 years, In Situ Thermal Remediation (ISTR) has become one of the most effective and accepted technologies for remediating high mass sites that include groundwater and soil contaminants such as VOCs, SVOCs, PAHs, MGP waste, Dioxins, and emerging contaminants such as 1,4-Dioxane and PFAS. ISTR is now widely accepted with more than 650 in situ projects completed to date world-wide and is known to be an approach that can be implemented in a cost-effective manner with a high degree of confidence that remedial goals will be met. Implementing ISTR on property redevelopment projects is a recognized approach to overcome the challenges seen at these sites where remediating contamination before the site can be fully utilized is paramount. These projects typically have sensitive schedules that if not met, can cost the site owner and developer millions of dollars, potentially resulting in the abandonment of the project. Therefore, a technology that offers timely remediation with a high degree of confidence that remedial goals can be met is of utmost importance. In many instances, ISTR is the technology of choice selected to achieve the required results. This presentation will illustrate how thermal remediation technologies (Electrical Resistance Heating [ERH], Thermal Conductive Heating [TCH], and Steam Enhanced Extraction [SEE]) can be utilized to meet remediation deadlines. The basic principles of ISTR will be discussed with a focus on how ISTR can be successfully implemented under the constraints typically encountered at redevelopment sites. The presentation will be centered around case studies from redevelopment sites remediated using ISTR and will showcase the project process, key operational data, and end remedial results achieved. In addition, key elements of typical thermal project remediation schedules, project costs, risk management, and contracting options for the successful completion of ISTR at contaminated redevelopment sites will be presented.