Found 404 results.

Vegetated long-term solution for fly ash landfill capping project

February 1, 2023

…to close the plant was made to address the recently approved revisions to the Multi-Pollutant Standards rule from the Illinois Pollution Control Board. As a part of the plant retirement,…

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Overlap seam specifications for geotextile separators

February 1, 2023

…details or check the manufacturer’s recommendations. Note that if you install an overlap “too small,” the mistake is not reversible. With the above written, there are general rules of thumb….

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EPA announces latest actions to protect groundwater and communities from coal ash contamination

January 26, 2023

…For more information, visit the Part B implementation webpage. Background The CCR Part B Final Rule, published November 12, 2020, allowed facilities to demonstrate to EPA that, based on groundwater data…

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Podcast delves into AASHTO publications division

January 25, 2023

…more detail specification guides, such as for bridges, can run from 1,500 to 1,800 pages.” Kim noted that technical publications can present interesting challenges, since even the addition of a…

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The importance of soil resources: Overlooked and undervalued?

January 19, 2023

…Figure 3. Use of soil erosion plots to measure runoff and sediment from agricultural land. Other measures being evaluated include mulching, direct drilling12, strip tillage, erosion control blankets13 and use…

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FEMA Dune Enhancement Project includes buried seawalls with geotextile tubes

January 17, 2023

…the county is responsible for, and separate rules control when those areas have to be restored. The county-run repairs installed about 480,000 cubic yards of sand on St. Johns beaches,…

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Dewatering bags – How do they work?

January 16, 2023

…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 used to expedite…

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EPA issues next test order under national testing strategy for PFAS used in plastics, chemical manufacturing

January 10, 2023

…than 1,000,000 pounds of HFPO are manufactured each year, according to TSCA Chemical Data Reporting rule reports. After thoroughly examining existing hazard and exposure data, EPA has concluded that HFPO…

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Understanding plastics: Single-use vs. engineering plastics

January 5, 2023

…durability. All communities stand to benefit from the strategic utilization of HDPE pipes, geosynthetics, and concrete liners. Information courtesy of AGRU America. References (1) Y. Chen et al. “Single-use plastics:…

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‘Plastic roads’ are paved with good intention

December 26, 2022

running a pilot program that combines recycled plastic bottle pellets with an asphalt mix to pave the road. “You can do theoretical stuff in a lab, but this is actually…

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