The World of Coal Ash 2022 announces new dates

February 24th, 2021

The American Coal Ash Association (ACAA) and the University of Kentucky Center for Applied Energy Research announced the dates for the World of Coal Ash 2022. The conference was originally scheduled for May 2021, but it was delayed due to Covid-19 precautions. WOCA 2022 will be held May 16–19, 2022, at the Northern Kentucky Convention […]

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The GMA Techline

February 1st, 2021

Moderated by George R. Koerner BIOLOGICAL DEGRADATION OF PE AND PP Q: Can you please enlighten me on the biological degradation of polyolefin polyethylene (PE) and polypropylene (PP)? A: Within the various plant forms of biological life, i.e., bacteria, actinomycetes, fungi and algae, polymer degradation is essentially nonexistent due to high molecular weight of the common […]

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CCR landfill final cover test pad—Part 2

October 1st, 2020

By Nina J. Balsamo, John Massey-Norton, John R. Klamut, Terry Queen,Charles F. Straley and Mark R. Lehner FIGURE 1 Test pass of loaded 45-ton (40.8-tonne) truck over 3 feet (0.9 m) of cover soil on bench An integrated drainage system (IDS) geomembrane, which provides both a low-permeability membrane and drainage space above the geomembrane, is […]

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FGI presents US EPA reconsideration of CCR regulations impacting the geosynthetics industry webinar

September 23rd, 2020

This webinar, on Oct 8, 2020 11:00 a.m.–12:00 p.m. CDT, will discuss a series of proposed and finalized amendments scheduled in 2020 to rules promulgated by the U.S. Environmental Protection Agency (US EPA) to the Coal Combustion Residuals Resource Conservation and Recovery Act Rule (CCR rule). The 2020 amendments seek to comply to with the USWAG […]

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CCR landfill final cover test pad—Part 1

August 1st, 2020

By Nina J. Balsamo, John Massey-Norton, John R. Klamut, Terry Queen,Charles F. Straley and Mark R. Lehner An integrated drainage system (IDS) geomembrane, which provides both a low-permeability membrane and drainage space above the geomembrane, is being used in the final cover at a coal combustion residuals (CCR) landfill in West Virginia. Part 1 of […]

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EPA finalizes revisions to the coal ash closure regulations, increases public access to information

July 30th, 2020

On July 29, the U.S. Environmental Protection Agency (EPA) finalized several changes to the regulations for coal combustion residuals, known as CCR or coal ash, to implement the court’s vacatur of certain closure requirements as well as adding provisions that enhance the public’s access to information about the management of coal ash at electric utilities. […]

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GMA history, Part 2

June 1st, 2020

During the Geosynthetics CASE STUDIES Conference in March in North Charleston, S.C., a few of the past Geosynthetic Materials Association (GMA) leaders had an opportunity to address the gathering and recall their personal experiences and achievements when they chaired the GMA executive council. This is the second installment of the history of GMA.  Beginning in […]

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GMA history and happenings

April 1st, 2020

By Andrew Aho Throughout the history of geosynthetics, leaders have emerged who have significantly affected the growth of the industry in North America. During the Geosynthetics CASE STUDIES Conference in March in North Charleston, S.C., a few of the Geosynthetic Materials Association (GMA) leaders had an opportunity to address the gathering and recall their personal […]

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The GMA Techline

April 1st, 2020

Moderated by George R. Koerner and Y. “Grace” Hsuan Welding Rod Q: This question is in regard to the welding rod intended for welding of geomembranes (both high-density polyethylene [HDPE] and linear low-density polyethylene [LLDPE]). Are there any GRI GM13- or GM17-based requirements for welding rods or are there any white papers or specifications? I […]

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EPA proposes additional amendments to the regulations for coal combustion residuals

February 20th, 2020

The U.S. Environmental Protection Agency (EPA) announced further proposed revisions and flexibilities to the regulations for the management of coal combustion residuals (CCR), commonly known as coal ash, from electric utilities. “This proposal is the last in a set of four planned actions we are taking under the Trump Administration to stabilize coal ash regulations […]

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