Thermal Design and Best Practices - Real-time Solutions to Unexpected Challenges Encountered During Thermal Remedy Implementation

• Presenter: Steffen Greiepke
• Session A8: Monitoring and Assessment during and after Thermal Treatment​
• Schedule: Thursday, June 4th at 8:55am

Thermal Remediation of High Mass Sites - When NAPL Capture Governs the Mass Recovery

• Session F2: LNAPL Recovery/Remediation Technology Transitions
• Schedule: Monday, June 1 at 3:55pm

Electrical Resistance Heating and Bioremediation: Combined Remedy Success at the BSCSS Site - Bothell, WA

• Presenter: Michael Dodson
• Session B3: Combined Remedies and Treatment Trains
• Schedule: Monday June 1st at

Identifying and Adjusting Design and Dosing to Account for Unknown Contaminant mass when Installing Injection Wells

• Presenter: Scott Wisher
• Session F7: Manufactured Gas Plant
• Schedule:  Wednesday, June 3 at 1:00pm

Real-Time Hydrostratigraphy: A Side-by-Side Comparison of the Hydraulic Profiling Tool and Waterloo Advanced Profiling System

• Presenter: Jason Flattery
• Session E3: High-Resolution Site Characterization (HRSC)
• Schedule: Tuesday, June 2nd at 2:00pm

Estimating Cleanup Times and Modeling

• Presenter:  John LaChance
• Session A7: Thermal Remediation Design & Best Practices
• Schedule: Wednesday, June 3 at 1:25pm

When to Turn off the Heat? Performance evaluation for determining completion of in situ thermal treatment

• Session G1: Setting Cleanup Gals End Points: When Are We Done?​
• Schedule: Monday, June 1st at 1:25pm

In Situ Thermal Remediation of MGP Coal Tar and Water Gas Tar Using Conductive Heating to 100°C

• Presenter:  Jim Galligan
• Session F7: Manufactured Gas Plant
• Schedule: Wednesday, June 3rd at 1:50pm

Understanding a Site's Conceptual Site Model to Prolong the Life Expectancy of an In-Situ ZVI PRB

• Presenter: Deb Schnell
• Session G4: Assessing Performance and Cost of Remedies
• Schedule: Tuesday, June 2nd at 11:20am

Challenges and Solutions to Process Vapor Monitoring on Non-Routine Volatile and Semi-Volatile organics at Thermal Remediation Sites

• Presenter: Alyson Fortune
• Session A8: Monitoring and Assessment during and after Thermal Treatment
• Schedule: Wednesday night

Thermally Enhanced Bioremediation for Xylene - Using Conductive Heating to 35°C

• Session C6: Heat-Enhanced Remediation
• Schedule: Wednesday Night

Efficiently Implementing High Resolution Site Characterization and Three-Dimensional Modeling to Improve Remedy Performance

• Presenter: Jason Flattery
• Session E3: High-Resolution Site Characterization (HRSC)
• Schedule:  Monday Night

Chasing Bedrock - Adapting to Site Conditions When Installing Thermal Systems

• Presenter: Steffen Griepke
• Session I1: Managing Remediation in Fractured Rock and Karst Aquifers
• Schedule: Monday Night

Optimization of Remediation Amendment Applications using HRSC Techniques

• Presenter:  Eliot Cooper
• Session E3: High-Resolution Site Characterization
• Schedule: Monday Night

Practical High Pressure Injection: Preparation, Tools, Design, Distribution, and Evaluation Illustrated by Case Studies

Presenters:

• Deborah Schnell (GeoSierra),
• Scott Noland (Remediation Products, Inc.),
• Ryan Oesterreich (Arcadis) and,
• Edward Winner (Division of Waste Management Commonwealth of Kentucky)

Objective:

• Course participation will help attendees such as managers, regulators, and consultants make informed decisions when they plan, direct, and evaluate high-pressure injections. The course will discuss tool selection, injection techniques, and proper applications of the same under various site conditions and with multiple amendment types, and it will describe and illustrate the same using case studies.

Description:

• In situ remediation by injections of amendments has blossomed into a common practice over the last 25 years. Unfortunately, advancements in technology, techniques, and equipment, as well as knowledge of what works versus what does not work have not been effectively communicated to remediation professionals. Many misconceptions exist regarding pumps, injection tooling, flow rate, injection point grid spacing, injection pressure, how injectate moves in the subsurface, how to monitor and evaluate amendment distribution during and after injections are completed, and, finally, what quality assurance/quality control measures can be implemented and performed in the field to ensure the best outcome. This course will provide a needed, in-depth understanding of high-pressure injection, primarily in the overburden, but also in the bedrock. The course is designed to enable participants to evaluate injection work plans and to specify equipment and injection techniques best suited to a particular remediation effort. It will assist field personnel in detecting and diagnosing problems and in critically evaluating and implementing measures to overcome them. Finally, the course will address post-injection evaluation of amendment distribution and appropriate laboratory testing to monitor performance. Topics will be systematically discussed in detail during the class and illustrated using case studies. The didactic approach will be partially problem based in that we’ll first present a core, significant concept after which we’ll present a problem from a case study. The participants will then be encouraged to solve the problem, identify the error, or oversight, to which the core concept is relevant. The purpose is to ensure that the participants recall and remember lessons many years after the course is completed.

Schedule: Sunday, May 31st from 1:00pm to 5:00pm

Remediation of Contaminant Mass in Low-Permeability Materials

Presenters: 

• Steffen Griepke (TerraTherm),
• David B. Gent (USACE),
• William Slack (FRx, Inc.),
• Eric J. Tollefsrud and,
• James Wang (Geosyntec)

Objective:

• The course will provide information specifically related to remediation in low-permeability materials (e.g., clay and fractured rock), including modeling and conceptual site model development for remedial design, as well as remediation technologies suitable for such challenging materials. The potential audience includes environmental site/program managers, regulators, and remediation practitioners.

Description: 

• Topics related to challenges and benefits of remediating contaminant sources in low-permeability materials, including development of conceptual site models (CSMs) supporting remedial design, as well as processes and applications of several in situ remediation technologies particularly suitable for these challenging materials will be covered. The life-cycle of a CSM demands iterative improvement of understanding as the project proceeds, based on systematic procedures. Data gap assessment and uncertainty analysis are the structural elements in the life-cycle of a CSM, and proper management of these CSM elements is particularly challenging and critical for sites with low-permeability zones. We will examine some pitfalls in evolution of the CSM life-cycle and present examples of CSMs that have been developed to meet the design, implementation and performance assessment of increasingly sophisticated remedial technologies. The CSM discussions will have particular focus on fractured bedrock as a low-permeability medium. Various environmental fracturing technologies have been demonstrated to effectively facilitate in situ remediation of low-permeability materials. The mechanisms, techniques, and applications of environmental fracturing, including the current spectrum of proppant materials, fracture emplacement methodologies, and remedial applications will be discussed. An in-depth explanation of several thermal technologies, including thermal conductive heating (TCH), steam-enhanced extraction (SEE), and electrical resistance heating (ERH), that are often considered as effective alternatives for low-permeability materials and bedrock will be provided. Remedial design approaches and tools, as well as guidelines for evaluating strengths and weaknesses of each technology with considerations of challenging site conditions will be considered. Electrokinetic (EK) transport of remediation amendments in the subsurface relies on ion migration and electroosmosis, which are electrochemical mechanisms relatively independent of soil's hydraulic conductivity. Therefore, EK transport can achieve effective distribution of select amendments in low-permeability and heterogeneous subsurface formations. The fundamentals of EK technology, its engineering implementation, and example projects will be presented.

Schedule: Sunday, May 31st from 1:00pm to 5:00pm