As a result of White Paper #5, the new GRI-GCL3 Standard Specification for Test Methods, Required Properties, and Testing Frequencies of Geosynthetic Clay Liners (GCLs) is now available. The new specification can be found at the “continued” link below; Whte Paper #5 can be found by cutting and pasting the following link into your browser: https://www.geosynthetica.net/tech_docs/GRIWhitePaper5.asp