The Flexible Geomembrane Institute

This podcast answers all of the questions following the November 13, 2025 webinar titled, "Carbon Emissions Quantification and Sustainability Aspects of Landfill Final Cover Systems" presented by Rutu Joshi. To view the webinar, please visit: https://www.thefgi.org/resources/webinar-archives

This podcast answers all of the questions following the October 23, 2025 webinar titled, "Ballasting & Protection of Exposed and Covered Geomembrane Lining Systems". The presenters were Patrick Elliott and Ron Frobel. To view the webinar, please visit: https://www.thefgi.org/resources/webinar-archives

In this episode, Dr. Sebastian Lobo-Guerrero answers all of the follow-up questions from his September 16, 2025 FGI Webinar, titled "Slope Stabilization and Earth Retaining Structures with Geosynthetics- Case Studies."

In this episode, Dr. Timothy Stark, Todd Thalhamer, and Dr. Navid Jafari answer all of the follow-up questions from their two-part webinar series on "Subsurface Elevated Temperature (SET) Events in Landfills." This podcast is available in both an audio and video format.

Brian Fraser answered all of the follow-up questions to the May 13, 2025 FGI Webinar on Geomembranes for Produced Water and Brine Containment

Please join Tim Stark and Jiale Lin as they address all of the questions from their June 11, 2024 webinar on Reliability Analysis of Landfill Slopes. For the webinar video and slides, please visit: https://www.fabricatedgeomembrane.com/resources/webinar-archives

Please join Tim Stark as he speaks with Ron Frobel, Patrick Elliott, and Matthew Kemnitz and they address all of the follow-up questions from their April 11, 2024 webinar titled, Best Practices for Geomembrane Penetration and Attachment Details." The webinar recording is available at https://www.fabricatedgeomembrane.com/resources/webinar-archives

Please join Tim Stark as he speaks with Brian Fraser and Rohit Sati of Layfield Geosynthetics. This podcast is a follow-up to the February 8, 2024 webinar on Protecting Water with Flexible Geomembranes. Brian and Rohit will address all questions that remained from the live presentation, as well as those submitted via the follow-up survey. The webinar recording is available at https://www.fabricatedgeomembrane.com/resources/webinar-archives

Listen to this episode from the FGI. Follow-up to Bob Mackey's December 12, 2023 webinar on Analysis of Geocomposite Drainage Layers (GDLs) for Landfills and Ponds. Bob will address all questions that remained from the live presentation, as well as those submitted via the follow-up survey. The webinar recording is available at https://www.fabricatedgeomembrane.com/resources/webinar-archives

Follow-up to Andrew Colby's webinar on Electrical Leak Location, presented on 1/16/24. All questions from the live webinar, as well as the follow-up survey, are answered.

Please join Tim Stark and Jorge Zornberg as they address all of the follow-up questions from their March 30, 2023 and April 25, 2023 webinars on Geomembrane Damage during Oil and Gas Operations Parts 1 and 2 (respectively). To view/download the video recording and PDF of the slides from this webinar, please visit:  https://www.fabricatedgeomembrane.com/resources/webinar-archives

Please join Tim Stark as he speaks with Tom Sangster and they address all of the follow-up questions from the February 16, 2023 webinar titled, "Role of Geosynthetics in Combating the Effects of Global Warming."  To view/download the video recording and PDF of the slides from this webinar, please visit:  https://www.fabricatedgeomembrane.com/resources/webinar-archives

Please join Tim Stark as he speaks with Brian Fraser (Layfield Geosynthetics) and Steve Valero (Independent Civil Engineering Contractor) as they address all of the follow-up questions from the January 12, 2023 webinar titled, "Positive Pressure Anaerobic Biogas Cover Systems."  To view/download the video recording and PDF of the slides from this webinar, please visit:  https://www.fabricatedgeomembrane.com/resources/webinar-archives

Please join Tim Stark as he speaks with Dr. Kerry Rowe (Queens University) and he addresses all of the follow-up questions from the November 10, 2022 webinar titled, "Strengths and Uncertainties Regarding PFAS Containment by Modern Liner Systems"  To view/download the video recording and PDF of the slides from this webinar, please visit:  https://www.fabricatedgeomembrane.com/resources/webinar-archives

Please join Tim Stark and Jen Miller as they address all of the follow-up questions from Dr. Stark's October 18, 2022 webinar titled, "Mobilized Interface Strengths on Geosynthetic Lined Slopes"  To view/download the video recording and PDF of the slides from this webinar, please visit:  https://www.fabricatedgeomembrane.com/resources/webinar-archives

Please join Tim Stark as he speaks with Dr. Chunling Li (Soil and Land Use Technology, Inc.) and he addresses all of the follow-up questions from the September 22, 2022 webinar titled, "Revised Wind Uplift Design Methodology for Exposed Geomembrane Covers."  To view/download the video recording and PDF of the slides from this webinar, please visit:  https://www.fabricatedgeomembrane.com/resources/webinar-archives

Please join Tim Stark as he speaks with Francesco Fontana (Manifattura Fontana SpA) and he addresses all of the follow-up questions from the August 30, 2022 webinar titled, "Microplastics and Geosynthetics."  To view/download the video recording and PDF of the slides from this webinar, please visit:  https://www.fabricatedgeomembrane.com/resources/webinar-archives

Please join Tim Stark as he speaks with Doug Hilts (Hilts Consulting Group), Prabeen Joshi (Layfield Group), and Adam Maskal (Solmax) and they address all of the follow-up questions from their July 12, 2022 webinar titled, "Live Panel Discussion on Expected Longevity & Applications of Exposed v. Unexposed Geomembranes."  To view/download the video recording and PDF of the slides from this webinar, please visit:  https://www.fabricatedgeomembrane.com/resources/webinar-archives

This is an audio version of the webinar.  To view the video, please visit: https://www.fabricatedgeomembrane.com/resources/webinar-archives

Please join Tim Stark as he speaks with Dr. Christopher Bareither (Colorado State University) and addresses all of the follow-up questions from his Mary 17, 2022 webinar titled, "Geosynthetic Clay Liners in Mining Applications."  To view/download the video recording and PDF of the slides from this webinar, please visit:  https://www.fabricatedgeomembrane.com/resources/webinar-archives

Please join Tim Stark and Jen Miller as they speak with Dr. Riya Bhowmik (Indian Institute of Technology Jammu) and address all of the follow-up questions from her March 3, 2022 webinar titled, "Failure of a Geomembrane Lined Reservoir Embankment: Field Observations and Numerical Investigations."  To view/download the video recording and PDF of the slides from this webinar, please visit:  https://www.fabricatedgeomembrane.com/resources/webinar-archives

Please join Tim Stark and Jen Miller as they speak with Richard Bathurst (Royal Military College) and address all of the follow-up questions from his February 8, 2022 webinar titled, "Introduction to Design of Mechanically Stabilized Earth (MSE) Walls."  To view/download the video recording and PDF of the slides from this webinar, please visit:  https://www.fabricatedgeomembrane.com/resources/webinar-archives

Please join Tim Stark and Jen Miller as they speak with Dr. Rob Swan (Drexel) regarding the January 13, 2022 Webinar on Behavior of Textured Geomembrane - Nonwoven Geotextile Interfaces and they address all of the questions that were not answered during the live presentation.   To view/download the video recording and PDF of the slides from this webinar, please visit:  https://www.fabricatedgeomembrane.com/resources/webinar-archives

Please join Tim Stark as he speaks with the presenters from the December 7, 2021 Live Panel Discussion Webinar on Allowable/Action Leakage Rates as they address all of the questions that were not answered during the live presentation.  The panelists included:  Annette DeHavilland (Ohio EPA), Reese Yontz (Tennessee DEC), Neil Nowak (SCS Engineers), Patrick Elliott (Raven Engineered Films), and Matthew Kemnitz (Leak Location Services). To view/download the video recording and PDF of the slides from this webinar, please visit:  https://www.fabricatedgeomembrane.com/resources/webinar-archives

Please join Tim Stark as he speaks with Richard Bathurst (Royal Military College) as they address all of the follow-up questions from his October 21, 2021 webinar titled, "An Introduction to Mechanically Stabilized Earth (MSE) Walls."  To view/download the video recording and PDF of the slides from this webinar, please visit:  https://www.fabricatedgeomembrane.com/resources/webinar-archives

Please join Tim Stark as he speaks with Doug Hilts (Hilts Consulting Group), Brian Fraser and Rohit Sati (Layfield Geosynthetics) as they address all of the follow-up questions from their September 9, 2021 webinar titled, "Industry Best Practices for Floating Cover Systems."  To view/download the video recording and PDF of the slides from this webinar, please visit:  https://www.fabricatedgeomembrane.com/resources/webinar-archives

Please join Tim Stark and Jen Miller as they speak with Bob Mackey (Partner, Senior Design Engineer, and Senior Project Manager with S2L, Inc.) and address all of the follow-up questions from his August 12, 2021 webinar titled, "Leachate Collection System Design and Management."  To view/download the video recording and PDF of the slides from this webinar, please visit:  https://www.fabricatedgeomembrane.com/resources/webinar-archives

Please join Tim Stark as he speaks with Brian Queen (Ohio EPA), Tonya Switalski (Titan Environmental), Shannon Goodrich (GO2CQA), and Ryan Kamp (Chesapeake Containment) as they address all of the follow-up questions from the July 22, 2021 webinar titled, "Panel Discussion on QA and QC for Fabricated Geosynthetics."  To view/download the video recording and PDF of the slides from this webinar, please visit:  https://www.fabricatedgeomembrane.com/resources/webinar-archives

Please join Tim Stark and Jen Miller as they speaks with Chris Athanassopoulos, Assistant Professor at Harper College, and address all of the follow-up questions from his June 30, 2021 webinar titled, "GCLs and Fabricated Geomembranes: Design and Construction."  To view/download the video recording and PDF of the slides from this webinar, please visit:  https://www.fabricatedgeomembrane.com/resources/webinar-archives

Please join Tim Stark as he speaks with Brian Fraser (Layfield), Matthew Kemnitz (Leak Locations Services), and Rohit Sati (Layfield).  Brian, Matt, and Rohit address all of the follow-up questions from their June 3, 2021 webinar titled, "Designing Double Lined Containment Systems Using Flexible Geomembranes."  To view/download the video recording and PDF of the slides from this webinar, please visit:  https://www.fabricatedgeomembrane.com/resources/webinar-archives