It’s going to save us a lot of money in the long-term over the next 30 years, and it’s aesthetically far superior to any other type of closure. “This method of closure is really excellent for the future of the county.
Conforms with settlement, removal of overburden soil layers, no soil cover veneer failure. Reduction of diversion berms, improved runoff water quality, leachate reduction. Aesthetically pleasing compared to other final closure systems. Reduction of erosion control measures for stormwater management. Elimination of establishing & maintaining vegetation. Maximizes solid waste disposal volume within liner footprint. Land & water conservation, reduced CO2 emissions, renewable energy. The Newton County Landfill is evaluating Watershed Geo’s revolutionary solar system for landfills, PowerCap™, for future revenue. The landfill gained more than 180,000 cubic yards of additional air space with the ClosureTurf design.Ĭonstruction for final closure began in April 2020, with the installation of ClosureTurf beginning in March 2021 and completion in September 2021. The change of sequence allowed the landfill operators to realize additional volume by relocating waste to the storm water terraces to create a constant slope. More waste volume may be disposed in the facility when less soil cover is required.Īs part of the closure project, Harbin Engineering prepared various permit modifications to change the sequence of fill at the site which was approved by the Georgia Environmental Protection Division (EPD) in 2016. Newton County had limited availability of staff for post closure maintenance, making ClosureTurf a great option for them.ĬlosureTurf also fully encapsulates which provided a solution to the leachate issues onsite and a reduction of soil thickness and volume necessary to cover the waste. So even before the maintenance savings, the project was paid for by using ClosureTurf,” said Curtis Reynolds, P.E., President of Harbin Engineering.Ī benefit of ClosureTurf is that it reduces future landfill management related to the establishment, maintenance, and upkeep of a vegetative cover. That volume in itself paid for the project. 
There was also a significant savings or benefit to this site with 180,000 cubic yards of additional airspace gained by being able to remove the stormwater terraces. ClosureTurf is an excellent improvement over that method. In addition to that, comparing the synthetic turf to trying to establish vegetation on landfill slopes that are 25-33% slopes, generally constructed out of very nutrient poor soils is exceedingly difficult.
“One of the biggest benefits of using ClosureTurf was that it not only removed any erosion, it prevents it, and there is no longer any possibility of soil erosion.
Traditional covers are highly reliant on availability of soils, trucking, heavy civil construction, establishment of vegetation on steep slopes and nutrient poor soils, and post-closure maintenance to maintain their integrity. Many of these landfills experience on-going maintenance to remedy erosion and sedimentation issues. Traditional landfills require large amounts of soil throughout their lifespan and are often lacking adequate soil to complete closure construction. The proposed design from the engineer, including repairing the landfill slopes and mitigation to prevent future damage, was the installation of ClosureTurf as a final cover solution.
The project was funded by FEMA as a hazard mitigation project in response to leachate seeps and slope erosion and a GEFA Georgia Fund Loan. In 2016, the Newton County Landfill received funding which applied the benefits of ClosureTurf for repair of landfill slopes, mitigation to prevent future leachate issues, and reduced post-closure maintenance.
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