We are a non-profit organization providing education, research, and support for the flexible (FML) and fabricated geomembrane industry.
Women in Geosynthetics Logo
Visit our partner organization

FGI at GeoAmericas 2024 Conference

April 28 – May 1, 2024
Toronto, Canada

Monday, April 29, 2024
1:30-3 pm – FGI Technical Session 1
11:30 am – 1:30 pm – Diversity Lunch (includes Women in Geosynthetics)
6:15 pm – FGI Membership Meeting (open to all)

Tuesday, April 30, 2024
10-11:30 am FGI Technical Session 2

Project Spotlight

Hinkle Reservoir Replacement Bottom Liner System, Baffle, and Floating Cover

Hilts Consulting Group and Viaflex
Floating Cover, Bottom Liner, and Baffle Curtain for Potable Water Reservoir

The FGI is proud to highlight our members' projects utilizing fabricated flexible geosynthetics. Check out some
of the creative projects, understand why certain products were selected, and read the project descriptions
as well as the important lessons learned.


Best Practices for Geomembrane Penetration and Attachment Details

Ron Frobel, Patrick Elliott, and Matthew Kemnitz

Recorded on
April 11, 2024
Earn PDH Credit for viewing this webinar!

View Our Latest FGI Webinar

View Our Latest FGI Webinar

Best Practices for Geomembrane Penetration and Attachment Details
Presented by
Ron Frobel, Patrick Elliott, and Matthew Kemnitz
Recorded on
April 11, 2024
To Download the Latest FGI Webinar
Earn PDH Credit for viewing this webinar!


FGI Offering Short Course on Subgrade Preparation & Use of GCLs with Flexible Geomembranes

Join us for an online short course that will focus on subgrade preparation for installation of flexible geomembranes. In addition, the course will focus on the use of geosynthetic clay liners (GCLs) with flexible geomembranes to create a composite barrier system. This course will describe the requirements for subgrade preparation before a flexible geomembrane is installed, such as maximum rock size allowed, presence of water, and smooth rolling the surface before geomembrane installation. This course will also present information on the hydraulic performance, chemical resistance, shear strength, and installation of GCLs with flexible geomembranes.

3.0 PDH, Free

Part 1: Subgrade Preparation - April 9, 2024 -12-1:30 pm CDT - Presented by Dr. Timothy D. Stark (University of Illinois)

Part 2: Use of GCLs with Flexible Geomembranes - April 10, 2024 -12-1:30 pm CDT - Presented by Marat Goldenberg, P.E. (CETCO)

Register Today

FGI Welcomes COMANCO Environmental Corporation

The Fabricated Geomembrane Institute (FGI) is pleased to welcome its newest Installer Member, COMANCO Environmental Corporation. COMANCO is an environmental, commercial, and civil construction company specializing in constructing containment facilities. For 35 years, COMANCO has provided turnkey geosynthetic installations for clients worldwide. Their sustainable containment solutions benefit clients from a variety of industries like waste management, water treatment, gas extraction, mining, energy, and more. An established name in Geosynthetics, COMANCO is known for completing all projects according to their core values of safety, quality, and service. The company headquarters is in Plant City, Florida and their FGI liaison is Trevor Topp, QA/QC Coordinator, who can be reached at tatopp@comanco.com. Please help us welcome COMANCO Environmental Corporation to the FGI!!!!

More news
Subscribe to our newsletter!
A quarterly newsletter that will keep you informed about all things Geosynthetics.
View our Latest Newsletter
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

The FGI only has access to/collect information that you voluntarily give us via email, web opt-in form, or other direct contact from you. We will not sell, rent, or distribute this information to anyone.  


Pond Leakage Calculator

Use our Excel calculator to learn what measurements are needed to properly plan for your pond liner project.



Frequently asked questions from members, customers and industry professionals answered.


Specifications & Guides

FGI, ASTM and IAGI material specifications in one place for your reference and convenience


Geomembrane Guide

A comprehensive guide to industry and our member material offerings for fabricated geomembranes.