A webinar related to design and proper deployment of geocomposite drainage layers for landfills and ponds will be presented. In particular, preferred details for connecting geocomposites to pipes, anchor trenches, sumps, etc. will be covered. In addition, incorporating leachate levels in slope stability analyses will be discussed. Topics include: Description of GDLs; deployment requirements; landfill closure design and specifications; anchor trench design, leachate collection system design, leak detection layer design, pipe, sump and GDL design considerations; GDL specification requirements and manufactured products. 1.0 PDH