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Stress Based Flow Failure Assessment for Dams and Embankments with Examples
Timothy D. Stark, Ph.D., P.E.
December 12, 2024
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Liner Systems for Heap Leach Pads/Piles

Humberto Alvarado & Waldo Huallanca (Anddes Perú)

November 19, 2024

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Contrasts and Opportunities for Geosynthetics in the Americas

Victor Pimentel, M.Sc. and Vinicius Benjamim, Ph.D.

October 10, 2024

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Green Infrastructure in Stormwater Management

Terry Sheridan, P.E.

September 17, 2024

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Geosynthetics Case Studies

Brian Fraser, Ron MacKenzie, & Jashwin Bhalla

August 22, 2024

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Migrating from the Simplified Method to the AASHTO Stiffness Method for internal stability design of MSE Walls

Dr. Richard J. Bathurst, GeoEngineering Centre at Queen’s-RMC

July 18, 2024

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Reliability Analysis of Landfill Slopes and Embankments

Timothy D. Stark and Jiale Lin

June 11, 2024

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Remote Sensing for Cover Integrity or Methane Emissions

Arthur Mohr

May 9, 2024

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Best Practices for Geomembrane Penetration and Attachment Details

Ron Frobel, Patrick Elliott, and Matthew Kemnitz

April 11, 2024

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The Geosynthetics Discipline and its Interaction with Geotechnical Engineering

J.P. Giroud, Ph.D.

March 5, 2024

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Protecting Water with Flexible Geomembranes

Brian Fraser, MBA and Rohit Sati, M.S. (Layfield Geosynthetics)

February 8, 2024

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Electrical Leak Location (ELL) – Planning & Preparation

Andrew Colby

January 16, 2024

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Analysis of Geocomposite Drainage Layers (GDLs) for Landfills and Ponds

Robert Mackey, P.E., BCEE

December 12, 2023

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GRI GM 34 Standard Specification - PVC-Ethylene Interpolymer Alloy Geomembranes (EIA=PVC+KEE)

George R. Koerner, Ph.D., P.E. & CQA

November 16, 2023

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Sustainable Design of Walls and Slopes

Liz Smith, PE, GE, BCGE

October 17, 2023

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Certified Welding Technician Program & IAGI Collaboration

Laurie Honnigford and Todd Harman

September 12, 2023

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Geosynthetics Case Histories

Patrick Elliot, Brad DeArment, and Douglas Hilts, P.E.

August 15, 2023

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Static and Seismic Deformation Analyses for Bottom Landfill Liner System Interface

Timothy D. Stark, Ph.D., P.E. and Jiale Lin

July 13, 2023

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From Zero Leak at End of Geomembrane Installation to Zero Leakage in Service

Presented by J.P Giroud

May 18, 2023

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Reference Material - Follow up Q&A with Dr. Giroud

Geomembrane Damage During Oil and Gas Operations Part 2

Presented by Jorge G. Zornberg, Ph.D., P.E., Calving Blake, Ph.D., University of Texas at Austin

April 25, 2023

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Geomembrane Damage During Oil and Gas Operations Part 1

Presented by Timothy D. Stark, Ph.D., P.E.

March 30, 2023

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Role of Geosynthetics in Combating the Effects of Global Warming

Presented by Tom Sangster, B. Sc., C.Eng., Downley Consultants Ltd.

February 16, 2023

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Positive Pressure Anaerobic Biogas Cover Systems

Presented by Brian Fraser, MBA and Stephen N. Valero, PE

January 12, 2023

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Geomembranes in Dams

Presented by Daniele Cazzuffi. CESI SpA Milano, Italy.
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Tuesday, December 6, 2022
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Strengths and Uncertainties Regarding PFAS Containment by Modern Liner Systems

Presented by: R. Kerry Rowe, Ph.D., P.E Geoengineering Centre and Queen's-RMC, Dept. of Civil Engineering, Queen's University.
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Thursday, November 10, 2022
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Mobilized Interface Strengths on Geosynthetic Lined Slopes

Presented By: Timothy D. Stark, Ph.D., P.E.,F.ASCE of the Fabricated Geomembrane Institute
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Tuesday, October 18, 2022
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Revised Wind Uplift Design Methodology for Exposed Geomembrane Covers

Presented by: Chunling Li, Ph.D., P.E. of Soil and Land Use Technology, Inc.
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Thursday, September 22, 2022
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Microplastics and Geosynthetics

Francesco Fontana, Technical Advisor at Manifattura Fontana SpA
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Tuesday, August 30, 2022
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Geosynthetic Reinforced Soil Integrated Bridge System (GRS-IBS) for Transportation Bridge Construction

Michael Adams & Jennifer Nicks, Ph.D., P.E. Federal Highway Administration
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Thursday, August 4, 2022
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Live Panel Discussion on Expected Longevity & Applications of Exposed v. Unexposed Geomembranes

Doug Hilts, P.E., Hilts Consulting Group; Prabeen Joshi, Ph.D., P.Eng., Layfield Group; and Adam Maskal, P.E., Solmax Geosynthetics
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Tuesday, July 12, 2022
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Waste Settlement Measurements using Unmanned Aerial Vehicles on MSW Landfills

Dimitrios Zekkos, University of California at Berkeley
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Thursday, June 9, 2022
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Geosynthetic Clay Liners in Mining Applications

Presented by Christopher A. Bareither, Ph.D., P.E., Civil & Environmental Engineering at Colorado State University
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Thursday, May 12, 2022
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Heat Generation and Accumulation in MSW Landfills

Presented by Navid H. Jafari, Ph.D. Louisiana State University
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Thursday, April 21, 2022
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Design of Leachate Collection Systems Part II

Presented by Bob Mackey, PE, BCEE, Principal Engineer at S2L, Inc.
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Tuesday, March 29, 2022
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Failure of a Geomembrane Lined Reservoir

Presented by Dr. Riya Bhowmik, Assistant Professor, Department of Civil Engineering at the Indian Institute of Technology Jammu
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Thursday, March 3, 2022
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Introduction to Design of Mechanically Stabilized Earth (MSE) Walls

Presented by Richard J. Bathurst of Geo-Engineering Centre at Queens Royal Military College of Canada
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Tuesday, February 8, 2022
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Behavior of Textured Geomembrane-Nonwoven Geotextile Interfaces

Presented by Timothy D. Stark and Jiale Lin of University of Illinois at Urbana-Champaign, and Robert Swan Jr. of Drexel University
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Thursday, January 13, 2022
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Panel Discussion on Allowable/Action Leakage Rates

Panelists: Annett De Havilland of the Ohio Environmental Protection Agency; Reese Yontz of the Tennessee Department of Environment & Conservation; Neil Nowak of SCS Engineers; Patrick Elliott of Raven Engineered Films; Matthew Kemnitz of Leak Location Services, Inc.
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Tuesday, December 7, 2021
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Use of Geomembranes in CCR Landfills and Impoundments

John M. Trast, P.E., M.ASCE Vice President; William Walton, P.E., Senior Vice President; and Pedro J Amaya, P.E., Senior Consultant at GEI Consultants, Inc.
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Thursday, November 11, 2021
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Introduction to Mechanically Stabilized Earth (MSE) Walls

Presented by Professor Richard J. Bathurst, of the Geo-Engineering Centre at Queens-RMC, Royal Military College of Canada
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Thursday, October 21, 2021
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Geosynthetics and Stability for Heap Leaching and Tailings Dams

Timothy D. Stark and Jiale Lin of the University of Illinois at Urbana-Champaign, and Evandro A. Gimensgct of Civil Geotechnical Consulting, Ltd.
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Thursday, September 30, 2021
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Industry Best Practices for Floating Cover Systems

Presented by Brian Fraser, M.B.A. of Layfield Geosynthetics; Doug Hilts, P.E. of Hilts Consulting; Rohit Sati, M.Sc. of Layfield Canada
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Thursday, September 9, 2021
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Leachate Collection Systems Design & Management I

Presented by Bob Mackey, P.E., BCEE, Principal Engineer at S2L, Inc.
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Thursday, August 12, 2021
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Panel Discussion on Geosynthetics CQC & CQA

Panelists: Brian Queen of Ohio Environmental Protection Agency; Shannon Goodrich of GO2CQA; Tonya Switalski of Titan Environmental; Ryan Kamp of Chesapeake Containment Systems
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Thursday, July 22, 2021
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GCLs and Fabricated Geomembranes – Design and Construction

Presented by Chris Athanassopoulos, PE of Harper College
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Tuesday, June 29, 2021
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Designing Double Lined Containment Systems Using Flexible Geomembranes

Presented by Brian Fraser & Rohit Sati of Layfield, and Matthew Kemnitz of Leak Location Services
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Thursday, June 3, 2021
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Deep Water Leak Location Survey

Matthew Kemnitz of Leak Location Services, Inc.
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Thursday, May 6, 2021
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Static and Seismic Veneer Stability Calculations

Neven Matasovic of Geo-Logic Associates
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Tuesday, April 13, 2021
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Design Performance of Hazardous Waste and LLRW Landfills Case Study

Presented by Rudolph Bonaparte Ph.D., P.E., D.GE., NAE, F.ASCE Chairman and Senior Principal, Geosyntec Consultants, Inc.
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Tuesday, March 23, 2021
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Geomembrane Attachment and Penetration Design and Installation

Presented by Patrick Elliott of Raven Industries/CLI, Brendan Simbeck, and Duff Simbeck of Simbeck and Associates
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Thursday, February 4, 2021
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Yeager Airport RSS Failure – Forensic Limit Equilibrium and FLAC Analyses

Presented by Jim Collin, Ph.D., P.E., D.GE., F.ASCE of the Collin Group, Ltd., and Timothy D. Stark, Ph.D., P.E., D.GE., F.ASCE of the University of Illinois at Urbana-Champaign, and Augusto Lucarelli of Itasca Consulting Group
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Thursday, January 14, 2021
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Panel Discussion on Subgrade prep for CQA-CQC for Geomembranes

PANELISTS: John Allen - Owens Corning, Brian Baille - TenCate Geosynthetics, Kennedy Garber - Hallaton Environmental Linings, Matt Kemnitz - Leak Location Services, Inc., Dave McLaury - Demtech Services, Inc., and MODERATOR: Timothy D. Stark - University of Illinois at Urbana-Champaign
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Tuesday, December 8, 2020

Geosynthetics in Mining

Presented by Denys Parra of Anddes in Lima, Peru
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Thursday, November 12, 2020

Geosynthetics for Construction on Soft Foundation Soils

R. Kerry Rowe of Department of Civil Engineering, Queen’s University, Kingston, Ontario, Canada
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Friday, November 6, 2020

US EPA CCR Regulations

JR Register, P.E. of Consumers Energy, and Andrew Bittner, P.E. of Gradient
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Thursday, October 8, 2020

Wrinkles In Containment Applications

Timothy D. Stark of the University of Illinois, Urbana-Champaign
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Thursday, September 17, 2020

Yeagae Airport RSS Failure Case History

Presented by Ryan Berg, P.E., D.GE., F.ASCE of Ryan R Berg & Associates, and Jim Collin, Ph.D., P.E., D.GE., F.ASCE of the Collin Group, Ltd.
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Thursday, August 20, 2020

Panel Discussion on Constructing with Fabricated Geosynthetics

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Thursday, July 30, 2020

Testing and Design of Drainage Geocomposites

Eric Blond
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Tuesday, June 16, 2020

Post Closure Care of Landfills

Presented by Jeremy Morris, Ph.D., P.E., Principal Engineer at Geosyntec Consultants
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Tuesday, May 19, 2020

Understanding Leak Location Surveys for Owners and Inspectors

Matthew Kemnitz of Leak Location Services, Inc.
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Tuesday, April 28, 2020

Environmental Containment Using Field and Factory Fabricated Geomembranes

Richelle Delia PhD of Owens Corning
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Thursday, April 16, 2020
LISTEN TO AUDIOLISTEN TO PODCAST

ADDITIONAL RESOURCES: ‍

ASTM D7865 Is based on FGI-3-2012

ASTM D&982 is based on FGI-5-2016

‍

Storm Water Management Using Geosynthetics

Presented by Terry Sheridan, P.E. of GeoStorage Corp
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Tuesday, March 24, 2020

Floating Cover Systems for Reservoirs and Ponds

Graham Fairhead, Managing Director of Fabtech Australia
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Thursday, February 27, 2020

Geotechnical Stability of Waste Fills - Lessons Learned & Continuing Challenges

Dr. Rudolph Bonaparte (Geosyntec Consultants)
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Thursday, January 23, 2020

Factory Fabrication, Installation, and Testing of Geomembranes

Dr. Timothy D. Stark (University of Illinois at Urbana-Champaign)
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Tuesday, December 10, 2019

Dynamic Behaviors of CCRs

William E. Wolfe (The Ohio State University)
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Wednesday, November 6, 2019

Geosynthetics in Challenging Regulatory Environments

Evan Andrews, P. E. (Duke Energy)
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Wednesday, November 6, 2019

Local Practices Managing CCRs

Ken Daly, P.E. (Wood PLC)
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Wednesday, November 6, 2019

Current and Emerging CCR Regulatory Issues

Harold D. Register, Jr., P.E. - Principal Engineer Environmental Services from Consumers Energy
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Wednesday, November 6, 2019

Accepting Special Wastes and Stability

Dr. Timothy D. Stark (University of Illinois at Urbana-Champaign)
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Thursday, October 24, 2019

Temporary Landfill Covers - Design and Construction

Elliot Pugh (Wind Defender)
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Tuesday, September 10, 2019

CCR Policy & Regulations

J.R. Register, P.E. (Consumers Energy) and Andrew Bittner, P.E. (Gradient)
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Tuesday, August 6, 2019

Geosynthetics for CCR Applications

Jason Ross, P.E. (S&ME)
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Tuesday, June 25, 2019

Geofoam Applications for Transportation Infrastructure

Dr. Steven Bartlett (University of Utah)
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Tuesday, May 21, 2019

Multi-Layer Interface Shear Testing

Dr. Robert Swan (Drexel University) and Dr. Timothy D. Stark (University of Illinois at Urbana-Champaign)
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Tuesday, April 9, 2019

GCL Shear Testing

Dr. Christopher Bareither (Colorado State University)
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Thursday, February 28, 2019

Geosynthetic Interface Shear Testing

Dr. Robert Swan (Drexel University)
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Tuesday, January 22, 2019

Part 1 of 6:  The Service Life of Geomembranes - Presented by R. Kerry Rowe

Dr. Kerry Rowe (Queens University)
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Friday, August 3, 2018

Part 5 of 6: Application of Fabricated Geomembranes for Coal Combustion Residuals

Gary Zych, P.E. (American Electric Power)
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Friday, August 3, 2018

Part 6 of 6 - Effect of Elevated Temperatures on Geosynthetics

Dr. Timothy D. Stark (University of Illinois at Urbana-Champaign)
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Friday, August 3, 2018

Part 2 of 6:  Testing & CQA Procedures - Presented by Glen W. Toepfer of CQA Solutions

Glen Toepfer (CQA Solutions)
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Friday, August 3, 2018

Part 4 of 6: The Best Practices For Zero Leak Containment

Sam Allen (TRI Environmental)
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Friday, August 3, 2018

Part 3 of 6: The Effects of Wrinkles on Geomembranes - Presented by R. Kerry Rowe

Dr. Kerry Rowe (Queens University)
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Friday, August 3, 2018

GMA Webinar Stability of Geosynthethic Lined Slopes - Part 2

Dr. Timothy D. Stark (University of Illinois at Urbana-Champaign)
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Thursday, May 31, 2018

GMA Webinar Stability of Geosynthetic Lined Slopes Part 1

Dr. Timothy D. Stark (University of Illinois at Urbana-Champaign)
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Tuesday, February 27, 2018

GMA Webinar - Fabrication, Installation, and Testing of Geomembranes

Dr. Timothy D. Stark (University of Illinois at Urbana-Champaign)
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Tuesday, November 7, 2017
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