The closure of ash landfills is becoming a more common occurrence. Garrett & Moore has served as the design and closure certification engineer for a significant number of ash landfill closures projects over the past few years to include both lined and unlined ash landfills containing either Class C and Class F fly ashes and other coal combustion residuals.
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Coal Ash Landfill Closure
Alternative Final Cover System Design
Construction required careful coordination with the existing landfill gas active collection system to ensure continuous operation of the landfill gas to energy plant onsite. The closure system needed to account for raising existing gas collection wells.