Interpreting and monitoring the final Buy America guidelines
October 1st, 2023
As I sat down to write this article, the final rule for the Guidance for Grants and Agreements from the U.S. Office of Management and Budget (OMB) had been posted on the Federal Register (FR) with a 60-day notice to take effect October 23, 2023. (whitehouse.gov/wp-content/uploads/2023/08/REV_2-CFR-Guidance-Pre-publication-version-8.13.pdf) The Geosynthetic Materials Association (GMA) has been constantly monitoring […]
Landfills and erosion control
October 1st, 2023
FIGURE 1 Aspen excelsior erosion control blankets (ECBs) protect a landfill cap shortly after installation. The ECBs control soil erosion caused by wind and water and hasten revegetation. Erosion control, sediment control and revegetation are common at landfills. Erosion Control Technology Council (ECTC) is a leading industry organization home to top manufacturers of erosion and […]
Lower trial weld strengths in polyethylene seams
October 1st, 2023
Polyethylene (PE) seaming techniques are used in the field to fabricate rolls of geomembranes into liner systems. There are two predominant methods used: hot wedge “fusion” welding and “extrusion” seaming. Over the past year, installers have noticed lower trial weld strength than in years past. This makes for much discussion on the jobsite between certified […]
IGS North America update: Two honors, two websites
October 1st, 2023
IGS North America (IGS-NA) has a couple of website updates to promote: We’ve relaunched our chapter website at igs-na.org. This update is a few years overdue—which feels like a very long time online. We will be using the new site to further promote the achievements of our members and our chapter benefactors. There is even […]
Lining system supports upgrade at northern Nevada mine
October 1st, 2023
Installers prepare over 10 million square feet of AGRU 80 mil HDPE double-sided MicroSpike for a new heap leach pad in Northern Nevada. Photo courtesy AGRU AGRU collaborated with a Nevada mine’s stakeholders to supply more than 12.2 million square feet (1.1 million m2) of high-density polyethylene (HDPE) liner to help a mining operation expand […]