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EPA announces latest actions to protect groundwater and communities from coal ash contamination
January 26th, 2023
The U.S. Environmental Protection Agency (EPA) has announced the latest action to protect communities and hold facilities accountable for controlling and cleaning up the contamination created by coal ash disposal. The agency issued six proposed determinations to deny facilities’ requests to continue disposing coal combustion residuals (CCR or coal ash) into unlined surface impoundments. For […]
Podcast delves into AASHTO publications division
January 25th, 2023
The latest episode of the AASHTO re:source podcast focuses on the work performed by the publications division of the American Association of State Highway and Transportation Officials (AASHTO). AASHTO re:source – which launched this podcast series in September 2020 — provides services and tools through three major programs: the Laboratory Assessment Program, the Proficiency Sample Program, and […]
Differentiating sources of PFAS with multiple lines of evidence
January 24th, 2023
Per- and polyfluoroalkyl substances (PFAS) are ubiquitous in the environment. Because a multitude of common commercial products contain PFAS, the potential exists for PFAS contamination to impact a wide variety of business sectors and practices. It’s especially difficult to determine who’s responsible for addressing PFAS when contamination likely stems from several origins. Due to the proliferation […]
TenCate Geosynthetics replaces heat shrink packaging
January 23rd, 2023
Due to the demand for higher packaging capacity and improved packaging, TenCate has installed a RoRo StretchPack® solution to replace heat shrink packaging at its production site in Bezons near Paris, France. RoRo StretchPack® by Tentoma is a cold packaging technology using a tubular stretch hood film suitable for horizontal sealed packaging of large rolls. […]
Containment vapor barrier system features reinforced geomembrane
January 20th, 2023
Land Science®, a division of REGENESIS®, and supplier of contaminant vapor intrusion mitigation technologies, was recently awarded a U.S. patent for the innovative use of a reinforced geomembrane comprised of an encapsulated, metalized layer and installed with Nitra-Core™, a spray-applied nitrile-modified asphalt. This patented innovation provides 100 times more chemical resistance than other solutions and […]
The importance of soil resources: Overlooked and undervalued?
January 19th, 2023
“The thin layer of soil covering the earth’s surface represents the difference between survival and extinction for most terrestrial life.”1 This quote demonstrates the vital importance of soils to human existence, by delivering multiple goods and services to all of society. These soil-dependent benefits include agricultural production (e.g., food, fiber, fodder and biofuels), water storage and […]
FHWA launches geosynthetic installation notes tracker mobile application
January 18th, 2023
The Federal Highway Administration (FHWA) Local Aid Support, in a collaborative effort with the Geosynthetic Materials Association (GMA), has launched the Geosynthetics Installation Notes Tracker Mobile Application. The mobile app provides handheld, quick and easy access to information on the various types and functions of geosynthetic materials for use in road construction and maintenance projects. The […]
Enhancing performance with internally cured concrete (EPIC2)
January 18th, 2023
Shrinkage cracking in concrete is a key issue for long-term performance in concrete bridges, roads, and repairs. When this cracking occurs early on, it leaves the concrete and embedded reinforcement exposed to degradation, reducing the service life of the structure. Enhancing Performance with Internally Cured Concrete (EPIC2) promotes internal curing, which increases concrete’s resistance to […]
FEMA Dune Enhancement Project includes buried seawalls with geotextile tubes
January 17th, 2023
While crews finish final details of a widespread St. Johns County beach repair project in St. Augustine Beach, Fla., county officials are considering work next year to undo erosion from tropical storms Ian and Nicole. “In five to six months, we could see construction happening,” said Stephen Hammond, a coastal environmental project manager for the county, although he stressed that key […]
Dewatering bags – How do they work?
January 16th, 2023
Made of a durable, porous geotextile fabric, dewatering bags are a type of filtration bag that allows water to pass through while trapping debris, sediment, and other particles. Primarily used for Best Management Practice (BMP) purposes to prevent the runoff and flow of contaminants and sediment into local bodies of water, dewatering bags are also […]