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Closing a coal ash pond

Sustainability contribution by MSE berms at landfills

Mechanically-stabilized earth (MSE) berms are increasingly utilized by landfill owners to efficiently create usable airspace for waste disposal.

MSE berms at landfills have contributed to sustainability by simultaneously allowing geometric maximization of the volume of usable airspace within a given permitted footprint while minimizing the carbon footprint of the berm construction operation. More
Effluent pond liners

Effluent pond liners

Questions and answers from the GMA Techline.

1. Do you see any issues with placing a gravel (rounded) subdrain system underneath the pond, sandwiched between a geomembrane (likely textured HDPE) and a geotextile (nonwoven, needle-punched) and placed directly on the compacted fill?

2. For conservative estimates, do you have a ballpark geomembrane thickness for textured HDPE? More
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