TheEGCdesignspecifiedanHDPE60mil(1.5mm)geomembranelinersecuredwithPlatipusPercussiveDrivenEarthAnchors (PDEA )asacosteffectiveandeasilyinstalledalternativetotraditionalverticaltrenching.ThePlatipusanchorassemblywas ® manufacturedwithcomponentstomeettheholdingcapacityand20-yeardesignliferequiredbyGeosyntecConsultants/MES in this highly corrosive environment. The anchor was driven through the liner and into 4-5 feet (1.2 – 1.5m) of compacted waste. The pull out resistance was then field tested to meet the engineered wind and LFG uplift requirements of 1,800 lbs (8kN). Once the anchor assembly was fully installed and tested, a HDPE patch was placed over to create an impermeable system. MarylandEnvironmentalService(MES)ownsandmaintainstheMidshoreRegionalSolidWasteSysteminaregionthatserves 140,

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