PGI has teamed up with CETCO in offering a new short courses titled “Constructing with GCLs and PVC Geomembranes” on May 23rd, 2007 in Seattle at the U.S. EPA Park Place Building and on May 24th, 2007 in Portland at the Portland World Trade Center. These courses focuses on how GCLs and PVC geomembranes can be used together as a composite liner.

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