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Liner system selection for leakage and performance
July 1st, 2024
Q: We recently relined an aeration pond at a POTW with a 45 mil GRI GM-30 barrier. It was successfully lined for 30 years with a 45 mil CSPE (Hypalon®) liner that was, unfortunately, punctured and torn beyond repair by a fallen tree from outside the fence line. The relined surface impoundment currently is leaking […]
Navigating landfill leachate requirements with geosynthetics
July 1st, 2024
FIGURE 1 After the 20-acre Clarksburg Landfill reached the end of its service life, the city scheduled the design and construction of a remedial landfill closure cap in 2019. The city sought a solution that could meet both EPA and state regulations. How vital is landfill leachate management? Recent guidance from the U.S. Environmental Protection […]