Dedicated to advancing the use of fabricated geomembranes through education, research, and technology transfer.

WHY?
Factory fabrication reduces field welding, reduces installation time and costs, allows modular construction and provides consistent seam and liner quality


Save The Date.....FGI Live Streaming All Day Short Course

Friday, August 3, 2018 Registration info coming soon....Presenters include: Kerry Rowe, Gary Zych, Sam Allen, Glen Toepfer & Timothy Stark
Emerging Topics in Geosynthetics
AGENDA

FGI Welcomes 4 New Members in 2018

New Member Info
EnviroCon Systems, Inc., Environmental Protection, Inc., Titan Environmental Containment USA, & CQA Solutions
AGENDA

FGI Creates Polypropylene Specification

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The FGI has created a Standard Specification for Polypropylene Geomembranes that covers both reinforced (fPP-R) and unreinforced (fPP) flexible polypropylene geomembranes.
AGENDA

Download Latest Webinar Now - Stability of Geosynthetic Lined Slopes Part 2

Stability of Geosynthetic Lined Slopes Part 2, Presented by Dr. Timothy D. Stark
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Recorded May 31, 2018 by Dr. Timothy Stark
AGENDA

Education - Research - Technology Transfer

FGI is committed to these objectives. Click below to learn more about our Mission
AGENDA

FGI Welcomes 4 New Members in 2018

EnviroCon Systems, Inc., Environmental Protection, Inc., Titan Environmental Containment USA, & CQA Solutions
New Member Info

Download Latest Webinar Now - Stability of Geosynthetic Lined Slopes Part 2

Recorded May 31, 2018 by Dr. Timothy Stark
Downloadall webinars

FGI Creates Polypropylene Specification

The FGI has created a Standard Specification for Polypropylene Geomembranes that covers both reinforced (fPP-R) and unreinforced (fPP) flexible polypropylene geomembranes.
view specAll FGI Specs
We are a non-profit organization providing education, research, and support for the flexible and fabricated geomembrane industry.

Check out some of our research and related topics

Geomembrane Guide

An interactive list of geomembrane products for various applications. Read more

The FGI Equipment Guide

An interactive list of welding equipment and products for fabricated geomembranes. Read more

The FGI Pond Leakage Calculator
Geomembranes v. Compacted Clay Liners

Fresh water is a precious resource with demands rising daily and supply greatly fluctuating. Only two (2) percent of all water on Earth is fresh water with the other 98% being salt water.  This 2% of fresh water is comprised of: 87% ice, 12% groundwater, and 1% rivers and lakes.  Thus, only 13% of the available freshwater is readily accessible.  Therefore, it is imperative that we capture and hold these limited water resources for agriculture, domestic use, and industry and also protect valuable groundwater from surface or subsurface contamination.

The FGI’s Pond Leakage Calculator is a Microsoft EXCEL spreadsheet based on Darcy's Law of Seepage and provides a comparison between leakage rates from a canal, pond, or reservoir constructed with compacted fine-grained soils and a geomembrane liner system. The Leakage Calculator allows the user to input the size of the containment basin (including length, width, depth, side slope angle and freeboard), the anticipated level of hydraulic conductivity of the compacted soil or geomembrane liner, and the relative cost of water in dollars per acre-foot of water.

The Calculator then calculates the volume of the basin in gallons, a comparison of leakage rates between the compacted soil and geomembrane liner systems in gallons, and the cost of the leakage based on the cost of water per acre-foot to replace it. This Calculator is designed to help consultants, engineers, architects, and end users decide how to line their canals, ponds, reservoirs, and basins to capture and/or protect valuable fresh water.  The Calculator does not consider variances in construction quality and operational techniques on the long-term effectiveness of the chosen liner system. The FGI has additional research and publications to help with other aspects of successful water containment applications.

Types of Geomembranes
Four (4) popular types of geomembranes are available for pond liner systems.  These four (4) geomembranes in ALPHABETICAL order are: (1) EPDM, (2) reinforced polyethylene (RPE), (3) Polypropylene (PP), and (4) Polyvinyl Chloride (PVC). EPDM (Ethylene Propylene Diene Monomer) geomembranes are unreinforced and have been used for the construction of ponds of varying kinds. EPDM geomembranes are made from rubber and can be welded together with tape and primer. EPDM can be reinforced or unreinforced.  RPE geomembranes have a high tensile strength and puncture resistance because they are reinforced. RPE geomembranes also can be welded with heat.  PP geomembranes can be unreinforced or reinforced depending on the application. Reinforced PP geomembranes also have a high tensile strength and puncture resistance because they are reinforced. PVC geomembranes are also unreinforced and have been used successfully for decades in water canals, ponds, and reservoirs. PVC geomembranes can be welded with heat and/or solvents.

Please click below to access FGI’s Pond Leakage Calculator.
 Calculator
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Stability of Geosynthetic Lined Slopes - II
Presented by Dr. Timothy D. Stark
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News

FGI Accomplishments and Current Activities – A Midterm Review

This article highlights a few of the accomplishments of the current Officers and Board of Directors, as well as the projects in which the FGI is currently engaged.

It has been over a year since the Fabricated Geomembrane Institute (FGI) inducted new Officers and a new Board of Directors, which occurred in March of 2017 at the ASCE Geo-Frontiers Conference in Orlando, Florida.  Officers and Board of Directors currently serving are: 

President – Patrick Elliott (Raven Industries, Parker, Colorado), Vice President – Laura Storey (Consumers Energy, Saginaw, Michigan), Treasurer – Ed Silva (Engineered Polymer Technologies, Hillside, New Jersey), Secretary – Andy Durham (Owens Corning, Granville, Ohio), Dale Kemnitz (Leak Location Services), Ray Peebles (Cooley Group), Bill Shehane (Seaman Corporation), and Duff Simbeck (Simbeck & Associates).  A few accomplishments of the current Officers and Board of Directors are highlighted below:

 

·          Increased participation – We have had some great meetings with new ideas and open discussion from new members and the new Board. This has already led to four new FGI members this year.

·          Successful Short Courses – The short courses offered at The Ohio State University were two of the most successful short courses offered by the FGI.  The Fall, 2017 Short Course was sold out (92), and therefore, a second course was offered in April, 2018 (78).  Success was due to a slate of excellent speakers, as well as Owens Corning offering a production facility tour following the short course.

·          New Website- The FGI website has a fresh new look, updated content, better graphics, allows tracking of usage, and is now mobile friendly. Please visit our new site and tell us what you think – www.fabricatedgeomembrane.com

·          Webinars – The FGI has completed three very successful webinars in collaboration with GMA:  Fabrication, Installation, and Testing – October 19, 2018, Slope Stability Part I – February 27, 2018, and Slope Stability Part II on May 31, 2018. 

·          Pond leakage calculator – The FGI created this excellent spreadsheet tool that calculates water loss of a Geomembrane vs. Compacted Clay Soil Liner and cost associated with water loss. The calculator can also help with pond sizing and volumes. Learn More

·           Increased Participation in FGI Summer Internship Program – In 2017, the FGI provided internships to six Civil & Environmental Engineering students at the University of Illinois at Urbana-Champaign to four different member companies. Learn More

·           New samples to Minnesota DNR study – The FGI expanded the long term geomembrane durability study in Hibbing, Minnesota to include eight additional geomembrane samples. This is a long term commitment and should produce unique data from several membranes over the next 20 years.

·       New Geosynthetics Magazine Articles Published– The FGI published following articles over the past year:  Long-term Durability of Geomembrane Materials and Seams in April/May, 2017, Protecting Geomembranes From Animal Damage in June/July, 2017, and the FGI Expands Summer Internship Program in November, 2017.

·           Polypropylene Specification Development – The FGI developed a new specification for supported and unsupported flexible polypropylene geomembranes that represents an industry standard for high quality products.  The FGI Polypropylene Specification is available to download from the FGI website. View All FGI Specs

 

In addition to all of the accomplishments above, the FGI is working on the following projects:

    

·           New PVC Specification – The FGI is working to create an updated PVC specification that will provide the end user with a more consistent and high quality industrial grade PVC.

·           Columbus Reservoir Paper – A journal paper on the largest containment project in the world that shows factory fabricated seams are more consistent and at least 10% stronger than field seams.

·           Video library of ASTM test methods – The FGI is in the process of developing a library of high quality videos for our website and YouTube channel that explain and demonstrate all of the different ASTM test methods used for testing flexible geomembranes.

·           Short courses – The FGI has two additional short courses scheduled for 2018 that will address Geosynthetics in Civil Engineering Applications:  Friday, August 3, 2018 at the University of Illinois at Urbana-Champaign (will also be recorded and live-streamed) and Wednesday, October 24, 2018 at Saginaw Valley State University (in collaboration with Consumers Energy and Plastatech).

·           Summer Internship program – In 2018, the FGI plans to continue to expand its internship program by developing new partnerships with other Universities (e.g. Colorado State University and The Ohio State University) to provide more geographically friendly interns to its members.

·           Clay v. Geomembrane Costs Paper – Conference paper is being written to highlight the benefits and cost savings of using geomembranes over compacted clay soil for containment applications.

·           RPP Project Case Study – The FGI is working on a case study of a premature failure of an RPP pond liner system, along with a new installation of an RPE system including mechanical attachment, venting system, ballast system to prevent uplift if ground water becomes an issue, anchor trench, underlayment, pipe details and panel fabrication.

·           Installation Details – The FGI is creating a library of installation details for engineers and clients to download from the FGI website in both JPEG and DWG formats.

 

The FGI is dedicated to advancing the use of fabricated geomembranes through education, research, and technology transfer.  The FGI is a consortium of manufacturers, fabricators/installers, designers, regulators, and material suppliers of fabricated geomembranes.  For more information on the FGI, please visit www.fabricatedgeomembrane.com.

 

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FGI Welcomes EPI

The FGI is pleased to welcome its newest fabricator member, Environmental Protection, Inc. (www.geomembrane.com).  EPI is based in Traverse City, Michigan and specializes in high quality prefabricated geomembrane panels used in a variety of environmental containment applications.  Their FGI liaison is Dan Rohe, President, who can be reached at danrohe@geomembrane.com or (800) 655-4637.  Please help us welcome EPI to the FGI!!!!

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Resources

Pond Leakage Calculator

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

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FAQs

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

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Specifications & Guides

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

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Geomembrane Guide

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

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